2026-09-15T01:58:21.477549Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:21.564109Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=234
2026-09-15T01:58:21.570841Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=28 expansion_and_footprint_ms=34 estimated_row_bytes=7944 heuristic_row_bytes=32520 geometry_fragments_per_tile=976 fragment_limit=16384
2026-09-15T01:58:21.581807Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=10 success=true
2026-09-15T01:58:21.587539Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=26 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:21.588292Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=56 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:21.589869Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=57 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:21.590276Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=39 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:21.590937Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=7 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:21.591876Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=27 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:21.594606Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=40 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:21.595234Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=13 success=true
2026-09-15T01:58:21.596242Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:21.600079Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:21.600433Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:21.621287Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=5244 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:21.688947Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=20 success=true
2026-09-15T01:58:21.689019Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=327584 host_code_base=376832 host_code_bytes=1880 generated_code_bytes=10012 exchange_table_bytes=5244 executable_ranges=[(378776, 524288)]
2026-09-15T01:58:21.689062Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=327584 profile_bytes=796 exchange_table_bytes=5244 host_code_bytes=1880 host_data_bytes=1140 generated_code_bytes=10012 code_address=378776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:21.709482Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:21.710686Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:21.710716Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:21.710848Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:21.710861Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:21.710965Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:21.711005Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:21.711013Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:21.711114Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:21.711248Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:21.711384Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:21.711397Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:21.711516Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-15T01:58:21.711539Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:21.711610Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:21.711749Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:21.711955Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:21.712320Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:21.712400Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:21.712472Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=64
2026-09-15T01:58:21.712846Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:21.712877Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:21.712906Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:21.712907Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:21.713007Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:21.713015Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:21.713051Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=65
2026-09-15T01:58:21.713053Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:21.713513Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:21.713560Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:21.713675Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:21.713707Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:21.713722Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=66
2026-09-15T01:58:21.713822Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:21.713832Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:21.714277Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:21.714331Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:21.714340Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:21.714348Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:21.714614Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:21.714697Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:21.714740Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:21.714765Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:21.714899Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:21.714914Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:21.715181Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:21.715366Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:21.715488Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:21.715853Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:21.715870Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:21.715989Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:21.716173Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:21.716281Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:21.716394Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:21.716483Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:21.716561Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:21.716593Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:21.716609Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:21.716644Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:21.716952Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:21.716982Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:21.717009Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:21.717030Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:21.717474Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:21.717565Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:21.717887Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:21.718876Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:21.719653Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:21.720471Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=10 success=true
2026-09-15T01:58:21.844799Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=124 success=true
2026-09-15T01:58:21.845122Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=331874 final_exchange=120708
2026-09-15T01:58:21.919033Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=39 success=true
2026-09-15T01:58:21.947615Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=28 success=true
2026-09-15T01:58:22.200380Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=245 success=true
2026-09-15T01:58:22.205494Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=331874 resuming=false
2026-09-15T01:58:22.212040Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/scoped-ownership/search4-state.json attempts=0 bytes=2108166
2026-09-15T01:58:22.237909Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened ownership proposal by exchange resource load candidates=41 baseline_cycles=25641 candidate_cycles=25054 baseline_pressure=15635 candidate_pressure=15147
2026-09-15T01:58:22.723699Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened local search round round=0 proposed=637 invalid=16 visited=0 not_cheaper=436 deduplicated=95 truncated=86 shortlisted=4
2026-09-15T01:58:22.723748Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: evaluating ordered local candidates concurrently candidates=4 threads=8
2026-09-15T01:58:22.749983Z  INFO local_candidate{attempt=1 proposal=230}: eliminated unread FP8 cast input padding clears removed=216
2026-09-15T01:58:22.750367Z  INFO local_candidate{attempt=3 proposal=232}: eliminated unread FP8 cast input padding clears removed=216
2026-09-15T01:58:22.751114Z  INFO local_candidate{attempt=0 proposal=238}: eliminated unread FP8 cast input padding clears removed=216
2026-09-15T01:58:22.751980Z  INFO local_candidate{attempt=2 proposal=234}: eliminated unread FP8 cast input padding clears removed=216
2026-09-15T01:58:22.756333Z  INFO local_candidate{attempt=1 proposal=230}: screened exchange table geometry expansion_ms=26 expansion_and_footprint_ms=32 estimated_row_bytes=6720 heuristic_row_bytes=27252 geometry_fragments_per_tile=839 fragment_limit=16384
2026-09-15T01:58:22.756616Z  INFO local_candidate{attempt=3 proposal=232}: screened exchange table geometry expansion_ms=26 expansion_and_footprint_ms=32 estimated_row_bytes=6488 heuristic_row_bytes=23984 geometry_fragments_per_tile=746 fragment_limit=16384
2026-09-15T01:58:22.757469Z  INFO local_candidate{attempt=0 proposal=238}: screened exchange table geometry expansion_ms=27 expansion_and_footprint_ms=33 estimated_row_bytes=7304 heuristic_row_bytes=27684 geometry_fragments_per_tile=851 fragment_limit=16384
2026-09-15T01:58:22.758340Z  INFO local_candidate{attempt=2 proposal=234}: screened exchange table geometry expansion_ms=28 expansion_and_footprint_ms=34 estimated_row_bytes=6768 heuristic_row_bytes=25316 geometry_fragments_per_tile=781 fragment_limit=16384
2026-09-15T01:58:22.769073Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=12 success=true
2026-09-15T01:58:22.769572Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=12 success=true
2026-09-15T01:58:22.769731Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=11 success=true
2026-09-15T01:58:22.769989Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=12 success=true
2026-09-15T01:58:22.770111Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.770197Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.770560Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.770739Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.770752Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.770842Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.770951Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.771359Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.771764Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.771795Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.772121Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.772310Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.772391Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.772480Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.772664Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.772803Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.772801Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=52 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:22.773011Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.773045Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.773277Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.773330Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.773396Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.773446Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=35 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:22.773662Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.773772Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.773883Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.774066Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.774132Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.774147Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=53 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:22.774459Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.774557Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.774842Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.774851Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.775069Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.775143Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=24 candidates=4 ordinary_horizon=450 paired_horizon=448 use_paired=false
2026-09-15T01:58:22.775227Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.775707Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.776075Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.776383Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.776435Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.776438Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.776790Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.776845Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.776886Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.776968Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.777148Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.777221Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.777482Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=36 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:22.777533Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.777563Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.777638Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.777842Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.777968Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.778452Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.779548Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=25 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:22.779655Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.780166Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.780414Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.780816Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.780846Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.781050Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.781675Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.782068Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.782288Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.782878Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=36 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:22.782938Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=52 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:22.783092Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.783260Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=35 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:22.784184Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=53 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:22.784182Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.784249Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.784807Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.785177Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.785243Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.785361Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.785464Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.785828Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.786335Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.786877Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.786915Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=37 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:22.787253Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=36 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:22.787329Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.787354Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=36 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:22.787486Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.787522Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.787924Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.788288Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.788349Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.788433Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.788535Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.788561Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.789156Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.789407Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.789546Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=24 candidates=4 ordinary_horizon=205 paired_horizon=181 use_paired=false
2026-09-15T01:58:22.789945Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.790385Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.790867Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.791261Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=37 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:22.791287Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.791385Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.791638Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.791780Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.791880Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.792726Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.793060Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=53 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:22.793275Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.793677Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=24 candidates=4 ordinary_horizon=319 paired_horizon=306 use_paired=false
2026-09-15T01:58:22.793701Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.794332Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=54 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:22.794578Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=25 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:22.794709Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.795432Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:22.797582Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=24 candidates=4 ordinary_horizon=308 paired_horizon=308 use_paired=false
2026-09-15T01:58:22.798766Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=25 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:22.798838Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=53 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:22.800082Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=54 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:22.801169Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=31 success=true
2026-09-15T01:58:22.801532Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=32 success=true
2026-09-15T01:58:22.801826Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:22.802097Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:22.802328Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=25 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:22.802611Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=32 success=true
2026-09-15T01:58:22.803185Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:22.803465Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=33 success=true
2026-09-15T01:58:22.804046Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:22.804920Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:22.805258Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:22.805267Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:22.805578Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:22.806159Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=2 success=true
2026-09-15T01:58:22.806485Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:22.806988Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=2 success=true
2026-09-15T01:58:22.807323Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:22.825820Z  INFO local_candidate{attempt=1 proposal=230}: exchange table and repeat patch storage exchange_table_bytes=4292 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:22.826606Z  INFO local_candidate{attempt=2 proposal=234}: exchange table and repeat patch storage exchange_table_bytes=4340 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:22.829985Z  INFO local_candidate{attempt=3 proposal=232}: exchange table and repeat patch storage exchange_table_bytes=4196 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:22.830974Z  INFO local_candidate{attempt=0 proposal=238}: exchange table and repeat patch storage exchange_table_bytes=4596 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:22.945235Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=59 success=true
2026-09-15T01:58:22.945275Z  INFO local_candidate{attempt=3 proposal=232}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9724 exchange_table_bytes=4196 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:22.945305Z  INFO local_candidate{attempt=3 proposal=232}: allocated package support memory linked_end=379824 profile_bytes=776 exchange_table_bytes=4196 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9724 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:22.945341Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=71 success=true
2026-09-15T01:58:22.945373Z  INFO local_candidate{attempt=1 proposal=230}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9584 exchange_table_bytes=4292 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:22.945386Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=66 success=true
2026-09-15T01:58:22.945401Z  INFO local_candidate{attempt=1 proposal=230}: allocated package support memory linked_end=379824 profile_bytes=764 exchange_table_bytes=4292 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9584 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:22.945418Z  INFO local_candidate{attempt=2 proposal=234}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9712 exchange_table_bytes=4340 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:22.945448Z  INFO local_candidate{attempt=2 proposal=234}: allocated package support memory linked_end=379824 profile_bytes=776 exchange_table_bytes=4340 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9712 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:22.945528Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=54 success=true
2026-09-15T01:58:22.945568Z  INFO local_candidate{attempt=0 proposal=238}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9628 exchange_table_bytes=4596 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:22.945596Z  INFO local_candidate{attempt=0 proposal=238}: allocated package support memory linked_end=379824 profile_bytes=768 exchange_table_bytes=4596 host_code_bytes=1884 host_data_bytes=1132 generated_code_bytes=9628 code_address=381776 available_ranges=[(327680, 360448), (363340, 376832), (409600, 949168)]
2026-09-15T01:58:22.967696Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=16 success=true
2026-09-15T01:58:22.968742Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:22.968890Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:22.969177Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:22.969373Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.969515Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:22.969790Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:22.970033Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:22.970525Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:22.970602Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:22.970743Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:22.970985Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.971411Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.971545Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:22.971612Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:22.971710Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:22.971725Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.971886Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:22.972114Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:22.972153Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:22.972263Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.972478Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:22.972571Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=20 success=true
2026-09-15T01:58:22.972762Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.972902Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:22.972919Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:22.973129Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.973326Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:22.973449Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:22.973511Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:22.973587Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:22.973854Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.973922Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.973953Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:22.973965Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.974032Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:22.974046Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:22.974169Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:22.974314Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:22.974369Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:22.974519Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:22.974584Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.974649Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:22.974696Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.974761Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:22.974897Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:22.974961Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.975107Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.975107Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:22.975126Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:22.975142Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:22.975536Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.975559Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:22.975560Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:22.975565Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:22.975638Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.975699Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:22.975978Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:22.976183Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.976215Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:22.976443Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:22.976560Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:22.976828Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:22.976846Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.976902Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.976945Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.977031Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:22.977179Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:22.977317Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.977325Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.977464Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:22.977467Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.977549Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.977568Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.977568Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.977628Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:22.977660Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:22.977751Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.977792Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:22.977974Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.978306Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.978357Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:22.978400Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.978408Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.978412Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:22.978593Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:22.978675Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:22.978775Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:22.978853Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:22.978914Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.978964Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.979197Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:22.979361Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.979386Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:22.979736Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.979781Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:22.979796Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:22.979947Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:22.980157Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:22.980199Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:22.980384Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.980392Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.980467Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:22.980487Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.980870Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:22.980913Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:22.981092Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.981113Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:22.981129Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.981291Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:22.981312Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:22.981579Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:22.981764Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.981867Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:22.981964Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:22.982177Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:22.982176Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.982372Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:22.982406Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:22.982476Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:22.982687Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:22.982903Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:22.983034Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.983057Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:22.983286Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:22.983437Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:22.983473Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:22.983542Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:22.983651Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.983933Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:22.983999Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:22.984037Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:22.984113Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:22.984228Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:22.984325Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.984378Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:22.984470Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:22.984543Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:22.984777Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:22.984881Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:22.985089Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.985126Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-15T01:58:22.985167Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.985360Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.985671Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:22.985780Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.985795Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.985954Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.986132Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.986297Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.986399Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.986564Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.986649Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:22.986716Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:22.986751Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:22.987114Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:22.987247Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.987300Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:22.987387Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:22.987534Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.987573Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:22.987697Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:22.987767Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.987829Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:22.987881Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:22.987954Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.988013Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:22.988103Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.988164Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:22.988192Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.988225Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.988236Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.988357Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:22.988629Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:22.988639Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.988658Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:22.988915Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:22.988935Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:22.988993Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:22.989040Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:22.989063Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:22.989064Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.989136Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:22.989141Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:22.989228Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.989257Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:22.989373Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:22.989556Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:22.989611Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.989738Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:22.989814Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:22.989889Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:22.990038Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.990082Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:22.990117Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:22.990194Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:22.990239Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:22.990315Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:22.990487Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:22.990621Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:22.990669Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:22.990813Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:22.990858Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:22.990881Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:22.991011Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:22.991045Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:22.991067Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:22.991048Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.991107Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:22.991157Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:22.991507Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:22.991704Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:22.991739Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:22.991762Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:22.991767Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:22.991849Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:22.992073Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:22.992115Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:22.992341Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:22.992386Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:22.992455Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:22.992473Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:22.992688Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:22.992701Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:22.992815Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:22.992850Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:22.992869Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:22.993024Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:22.993264Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:22.993360Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:22.993493Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:22.993564Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:22.993567Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:22.993909Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:22.993958Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:22.993991Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:22.994054Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-15T01:58:22.994320Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:22.994358Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:22.994885Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:22.994940Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:22.995450Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:22.995692Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:22.995774Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:22.995882Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:22.996195Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:22.996281Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:22.996322Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:22.996376Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:22.996401Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:22.996575Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:22.996647Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:22.996741Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:22.996782Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:22.997057Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:22.997066Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:22.997159Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:22.997542Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=27 success=true
2026-09-15T01:58:22.997552Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:22.997754Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=30 success=true
2026-09-15T01:58:22.997780Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=27 success=true
2026-09-15T01:58:22.997788Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=25 success=true
2026-09-15T01:58:23.121290Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=123 success=true
2026-09-15T01:58:23.121641Z  INFO local_candidate{attempt=2 proposal=234}: costed final placed program final_cycles=318041 final_exchange=111306
2026-09-15T01:58:23.121834Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=124 success=true
2026-09-15T01:58:23.122238Z  INFO local_candidate{attempt=1 proposal=230}: costed final placed program final_cycles=316895 final_exchange=109341
2026-09-15T01:58:23.124545Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=126 success=true
2026-09-15T01:58:23.124969Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=127 success=true
2026-09-15T01:58:23.125050Z  INFO local_candidate{attempt=0 proposal=238}: costed final placed program final_cycles=315974 final_exchange=109257
2026-09-15T01:58:23.125339Z  INFO local_candidate{attempt=3 proposal=232}: costed final placed program final_cycles=318383 final_exchange=110829
2026-09-15T01:58:23.273852Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=118 success=true
2026-09-15T01:58:23.273882Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=113 success=true
2026-09-15T01:58:23.273951Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=117 success=true
2026-09-15T01:58:23.274143Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=112 success=true
2026-09-15T01:58:23.306858Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=32 success=true
2026-09-15T01:58:23.307615Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=33 success=true
2026-09-15T01:58:23.309466Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=35 success=true
2026-09-15T01:58:23.309533Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=35 success=true
2026-09-15T01:58:23.572221Z  INFO local_candidate{attempt=0 proposal=238}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=252 success=true
2026-09-15T01:58:23.576534Z  INFO local_candidate{attempt=1 proposal=230}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=254 success=true
2026-09-15T01:58:23.587415Z  INFO local_candidate{attempt=2 proposal=234}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=258 success=true
2026-09-15T01:58:23.593263Z  INFO local_candidate{attempt=3 proposal=232}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=264 success=true
2026-09-15T01:58:23.656765Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: accepted local layout improvement attempt=0 before=331874 after=315974 delta=Changes { plans: {OperationId(17)}, boundaries: [ValueId(69)], casts: [], early_casts: [], packing_rows: (None, None), parallel_reductions: (0, 0), disjoint_copy_sources: (false, false), cast_storage: (Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} }), Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} })), owners: (OwnerChoices { inputs: {}, operators: {}, results: {} }, OwnerChoices { inputs: {}, operators: {}, results: {} }) }
2026-09-15T01:58:23.699870Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/scoped-ownership/search4-state.json attempts=1 bytes=2383040
2026-09-15T01:58:23.722272Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened ownership proposal by exchange resource load candidates=41 baseline_cycles=23532 candidate_cycles=22838 baseline_pressure=14759 candidate_pressure=14125
2026-09-15T01:58:24.360967Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened local search round round=1 proposed=626 invalid=16 visited=1 not_cheaper=456 deduplicated=79 truncated=71 shortlisted=3
2026-09-15T01:58:24.361022Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: evaluating ordered local candidates concurrently candidates=3 threads=8
2026-09-15T01:58:24.386844Z  INFO local_candidate{attempt=1 proposal=139}: eliminated unread FP8 cast input padding clears removed=216
2026-09-15T01:58:24.388320Z  INFO local_candidate{attempt=2 proposal=87}: eliminated unread FP8 cast input padding clears removed=189
2026-09-15T01:58:24.389747Z  INFO local_candidate{attempt=3 proposal=91}: eliminated unread FP8 cast input padding clears removed=189
2026-09-15T01:58:24.393392Z  INFO local_candidate{attempt=1 proposal=139}: screened exchange table geometry expansion_ms=25 expansion_and_footprint_ms=32 estimated_row_bytes=7408 heuristic_row_bytes=25376 geometry_fragments_per_tile=859 fragment_limit=16384
2026-09-15T01:58:24.394661Z  INFO local_candidate{attempt=2 proposal=87}: screened exchange table geometry expansion_ms=27 expansion_and_footprint_ms=33 estimated_row_bytes=7192 heuristic_row_bytes=27176 geometry_fragments_per_tile=831 fragment_limit=16384
2026-09-15T01:58:24.396224Z  INFO local_candidate{attempt=3 proposal=91}: screened exchange table geometry expansion_ms=28 expansion_and_footprint_ms=35 estimated_row_bytes=7192 heuristic_row_bytes=27176 geometry_fragments_per_tile=831 fragment_limit=16384
2026-09-15T01:58:24.406745Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=12 success=true
2026-09-15T01:58:24.406776Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=11 success=true
2026-09-15T01:58:24.406929Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=10 success=true
2026-09-15T01:58:24.407727Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:24.407859Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:24.407936Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:24.408415Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:24.408420Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.408532Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.408558Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.408683Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:24.408875Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:24.409094Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:24.409131Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:24.409322Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:24.409456Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:24.409581Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:24.409728Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:24.409925Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:24.409989Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:24.410078Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:24.410187Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.410380Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:24.410396Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:24.410463Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.410702Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:24.410706Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.410784Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:24.410932Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:24.410956Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.411262Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.411290Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:24.411303Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:24.411379Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:24.411455Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.411593Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:24.411769Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:24.412095Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.412295Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:24.412330Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:24.412376Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.412517Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.412520Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:24.412872Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:24.413019Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:24.413326Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:24.413345Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.413409Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:24.413469Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:24.413608Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.413726Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.414065Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.414118Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:24.414340Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.414492Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.414490Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=4 ordinary_horizon=450 paired_horizon=481 use_paired=false
2026-09-15T01:58:24.414649Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:24.414759Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:24.415192Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:24.415317Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:24.415554Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=33 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:24.415697Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:24.415867Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:24.415973Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:24.416232Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:24.416500Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:24.416610Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:24.416632Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:24.416960Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=4 ordinary_horizon=492 paired_horizon=652 use_paired=false
2026-09-15T01:58:24.417037Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:24.417155Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:24.417285Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:24.417601Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=22 candidates=4 ordinary_horizon=308 paired_horizon=308 use_paired=false
2026-09-15T01:58:24.417649Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:24.417866Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:24.417995Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:24.418298Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:24.419464Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:24.419627Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=34 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:24.420366Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:24.420997Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:24.421645Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:24.422153Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=23 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:24.422245Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:24.422405Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:24.425728Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:24.426737Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=33 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:24.426972Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:24.428946Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=22 candidates=4 ordinary_horizon=308 paired_horizon=308 use_paired=false
2026-09-15T01:58:24.430849Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=34 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:24.433520Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=23 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:24.434258Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=27 success=true
2026-09-15T01:58:24.434962Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=28 success=true
2026-09-15T01:58:24.434964Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=27 success=true
2026-09-15T01:58:24.435065Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:24.435580Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:24.435591Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:24.438508Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:24.438781Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:24.438841Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:24.438937Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:24.439092Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:24.439173Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:24.457982Z  INFO local_candidate{attempt=3 proposal=91}: exchange table and repeat patch storage exchange_table_bytes=4540 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:24.458402Z  INFO local_candidate{attempt=2 proposal=87}: exchange table and repeat patch storage exchange_table_bytes=4540 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:24.458995Z  INFO local_candidate{attempt=1 proposal=139}: exchange table and repeat patch storage exchange_table_bytes=4748 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:24.551756Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=47 success=true
2026-09-15T01:58:24.551788Z  INFO local_candidate{attempt=1 proposal=139}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9372 exchange_table_bytes=4748 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:24.551789Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=47 success=true
2026-09-15T01:58:24.551813Z  INFO local_candidate{attempt=1 proposal=139}: allocated package support memory linked_end=379824 profile_bytes=764 exchange_table_bytes=4748 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9372 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:24.551822Z  INFO local_candidate{attempt=3 proposal=91}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9432 exchange_table_bytes=4540 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:24.551850Z  INFO local_candidate{attempt=3 proposal=91}: allocated package support memory linked_end=379824 profile_bytes=752 exchange_table_bytes=4540 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9432 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:24.551920Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=46 success=true
2026-09-15T01:58:24.551947Z  INFO local_candidate{attempt=2 proposal=87}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9432 exchange_table_bytes=4540 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:24.551974Z  INFO local_candidate{attempt=2 proposal=87}: allocated package support memory linked_end=379824 profile_bytes=752 exchange_table_bytes=4540 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9432 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:24.572950Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=16 success=true
2026-09-15T01:58:24.573513Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:24.573686Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:24.573866Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:24.574182Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:24.574290Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:24.574599Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.574670Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:24.574679Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:24.574787Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:24.574982Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:24.575060Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:24.575092Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.575446Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:24.575512Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:24.575712Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:24.575750Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:24.575901Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:24.576154Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:24.576255Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:24.576280Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:24.576325Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:24.576345Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:24.576373Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.576513Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:24.576704Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:24.576824Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:24.576845Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.577166Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.577249Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:24.577321Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:24.577350Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:24.577627Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.577887Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:24.577900Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:24.578079Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:24.578124Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:24.578240Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:24.578252Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.578385Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:24.578503Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:24.578633Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:24.578666Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.578831Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:24.578892Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:24.578915Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:24.578925Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:24.579106Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:24.579310Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:24.579346Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:24.579535Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.579573Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:24.579846Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:24.579850Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:24.579893Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.580010Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:24.580297Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:24.580309Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:24.580340Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.580451Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:24.580618Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.580787Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:24.580956Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:24.581022Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:24.581030Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:24.581061Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:24.581198Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:24.581381Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:24.581464Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:24.581690Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:24.581780Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:24.581807Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:24.581861Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:24.581964Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:24.582018Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:24.582056Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:24.582072Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:24.582698Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:24.582918Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:24.582979Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:24.583112Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:24.583460Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:24.583480Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:24.583535Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:24.583665Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:24.583722Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:24.583892Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:24.583897Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:24.584002Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:24.584113Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:24.584140Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:24.584237Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:24.584378Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:24.584730Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:24.584769Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:24.584837Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:24.584869Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:24.584872Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:24.584918Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:24.585016Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:24.585419Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:24.585495Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:24.585683Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:24.586020Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:24.586120Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:24.586456Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:24.586580Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:24.586810Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:24.587081Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:24.587174Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:24.587282Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:24.587328Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:24.587600Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:24.587629Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:24.587655Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:24.587773Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:24.587961Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:24.587964Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:24.587974Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:24.588023Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:24.588113Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:24.588418Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:24.588441Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:24.588680Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:24.588827Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:24.588840Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:24.588845Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:24.588868Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:24.589088Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:24.589195Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:24.589279Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:24.589314Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:24.589390Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:24.589413Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:24.589493Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:24.589508Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:24.589707Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:24.589712Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:24.589782Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:24.589920Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:24.589928Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:24.590085Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:24.590086Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:24.590118Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:24.590309Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:24.590340Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:24.590363Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:24.590454Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:24.590462Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:24.590491Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:24.590529Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:24.590744Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:24.590782Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:24.590819Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:24.591035Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:24.591065Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:24.591168Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:24.591222Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:24.591410Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:24.591450Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:24.591455Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:24.591460Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:24.591483Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:24.591705Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:24.591836Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-15T01:58:24.591873Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:24.591878Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:24.591966Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:24.592047Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-15T01:58:24.592232Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:24.592244Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:24.592391Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:24.592499Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:24.592513Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:24.592551Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:24.592633Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:24.592900Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:24.592976Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:24.593266Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:24.593428Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:24.593611Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:24.593646Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:24.593654Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:24.593938Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:24.594015Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:24.594313Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:24.594733Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:24.595539Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:24.596024Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=23 success=true
2026-09-15T01:58:24.596073Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=22 success=true
2026-09-15T01:58:24.596114Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=21 success=true
2026-09-15T01:58:24.719411Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=123 success=true
2026-09-15T01:58:24.719773Z  INFO local_candidate{attempt=1 proposal=139}: costed final placed program final_cycles=304310 final_exchange=109257
2026-09-15T01:58:24.721949Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=125 success=true
2026-09-15T01:58:24.722388Z  INFO local_candidate{attempt=2 proposal=87}: costed final placed program final_cycles=308177 final_exchange=104640
2026-09-15T01:58:24.724261Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=128 success=true
2026-09-15T01:58:24.724609Z  INFO local_candidate{attempt=3 proposal=91}: costed final placed program final_cycles=308303 final_exchange=104766
2026-09-15T01:58:24.793330Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=39 success=true
2026-09-15T01:58:24.793341Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=32 success=true
2026-09-15T01:58:24.793360Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=37 success=true
2026-09-15T01:58:24.819229Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=25 success=true
2026-09-15T01:58:24.821339Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=27 success=true
2026-09-15T01:58:24.821640Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=28 success=true
2026-09-15T01:58:25.081740Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=240 success=true
2026-09-15T01:58:25.092142Z  INFO local_candidate{attempt=1 proposal=139}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=253 success=true
2026-09-15T01:58:25.093868Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=250 success=true
2026-09-15T01:58:25.163723Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: accepted local layout improvement attempt=1 before=315974 after=304310 delta=Changes { plans: {OperationId(6), OperationId(7), OperationId(8)}, boundaries: [ValueId(58)], casts: [], early_casts: [], packing_rows: (None, None), parallel_reductions: (0, 0), disjoint_copy_sources: (false, false), cast_storage: (Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} }), Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} })), owners: (OwnerChoices { inputs: {}, operators: {}, results: {} }, OwnerChoices { inputs: {}, operators: {}, results: {} }) }
2026-09-15T01:58:25.206625Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/scoped-ownership/search4-state.json attempts=2 bytes=2664090
2026-09-15T01:58:25.228937Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened ownership proposal by exchange resource load candidates=41 baseline_cycles=23532 candidate_cycles=22838 baseline_pressure=14759 candidate_pressure=14125
2026-09-15T01:58:25.844444Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened local search round round=2 proposed=616 invalid=16 visited=1 not_cheaper=444 deduplicated=80 truncated=73 shortlisted=2
2026-09-15T01:58:25.844485Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: evaluating ordered local candidates concurrently candidates=2 threads=8
2026-09-15T01:58:25.872370Z  INFO local_candidate{attempt=3 proposal=91}: eliminated unread FP8 cast input padding clears removed=189
2026-09-15T01:58:25.872910Z  INFO local_candidate{attempt=2 proposal=87}: eliminated unread FP8 cast input padding clears removed=189
2026-09-15T01:58:25.878959Z  INFO local_candidate{attempt=3 proposal=91}: screened exchange table geometry expansion_ms=27 expansion_and_footprint_ms=34 estimated_row_bytes=7296 heuristic_row_bytes=24868 geometry_fragments_per_tile=839 fragment_limit=16384
2026-09-15T01:58:25.879824Z  INFO local_candidate{attempt=2 proposal=87}: screened exchange table geometry expansion_ms=28 expansion_and_footprint_ms=35 estimated_row_bytes=7296 heuristic_row_bytes=24868 geometry_fragments_per_tile=839 fragment_limit=16384
2026-09-15T01:58:25.889949Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=9 success=true
2026-09-15T01:58:25.890659Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=11 success=true
2026-09-15T01:58:25.891522Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:25.892446Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:25.892807Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:25.893503Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:25.893638Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:25.893920Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=4 ordinary_horizon=450 paired_horizon=481 use_paired=false
2026-09-15T01:58:25.893951Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=33 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:25.894134Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:25.894875Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:25.894904Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:25.895123Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:25.895315Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=22 candidates=4 ordinary_horizon=308 paired_horizon=308 use_paired=false
2026-09-15T01:58:25.895983Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:25.896874Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:25.897187Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:25.897647Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:25.897920Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:25.898062Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=34 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:25.899782Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=23 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:25.900420Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=4 ordinary_horizon=492 paired_horizon=652 use_paired=false
2026-09-15T01:58:25.901153Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:25.901480Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=33 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:25.902437Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:25.903792Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=22 candidates=4 ordinary_horizon=308 paired_horizon=308 use_paired=false
2026-09-15T01:58:25.905841Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=34 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:25.908469Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=23 candidates=20 ordinary_horizon=422 paired_horizon=962 use_paired=false
2026-09-15T01:58:25.909256Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=19 success=true
2026-09-15T01:58:25.909267Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=18 success=true
2026-09-15T01:58:25.909884Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:25.909947Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:25.912932Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:25.912991Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:25.913291Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:25.913318Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:25.932705Z  INFO local_candidate{attempt=3 proposal=91}: exchange table and repeat patch storage exchange_table_bytes=4692 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:25.933216Z  INFO local_candidate{attempt=2 proposal=87}: exchange table and repeat patch storage exchange_table_bytes=4692 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:26.010363Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=31 success=true
2026-09-15T01:58:26.010404Z  INFO local_candidate{attempt=2 proposal=87}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9176 exchange_table_bytes=4692 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:26.010430Z  INFO local_candidate{attempt=2 proposal=87}: allocated package support memory linked_end=379824 profile_bytes=748 exchange_table_bytes=4692 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9176 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:26.010511Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=30 success=true
2026-09-15T01:58:26.010541Z  INFO local_candidate{attempt=3 proposal=91}: placing generated tile programs linked_end=379824 host_code_base=379824 host_code_bytes=1884 generated_code_bytes=9176 exchange_table_bytes=4692 executable_ranges=[(378844, 378848), (381776, 524288)]
2026-09-15T01:58:26.010568Z  INFO local_candidate{attempt=3 proposal=91}: allocated package support memory linked_end=379824 profile_bytes=748 exchange_table_bytes=4692 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9176 code_address=381776 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:26.031823Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=16 success=true
2026-09-15T01:58:26.032596Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:26.032819Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:26.032834Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=16 success=true
2026-09-15T01:58:26.032939Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:26.033452Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:26.033669Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:26.033782Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:26.034063Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:26.034327Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:26.034537Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:26.034772Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:26.034861Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:26.034999Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:26.035147Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:26.035243Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:26.035254Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:26.035362Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:26.035438Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:26.035566Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:26.036062Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:26.036066Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:26.036128Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:26.036323Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:26.036529Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:26.036686Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:26.036695Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:26.036742Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:26.036862Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:26.036911Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:26.037133Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:26.037164Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:26.037251Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:26.037282Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:26.037420Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:26.037654Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:26.037677Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:26.037882Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:26.037898Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:26.037943Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:26.038024Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:26.038316Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:26.038361Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:26.038371Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:26.038562Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:26.038609Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:26.038883Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:26.039010Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:26.039086Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:26.039266Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:26.039313Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:26.039381Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:26.039692Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:26.039709Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:26.039813Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:26.039818Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:26.040048Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:26.040265Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:26.040296Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:26.040474Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:26.040483Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:26.040503Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:26.040662Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:26.040771Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:26.040863Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:26.040885Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:26.041005Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:26.041019Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:26.041114Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:26.041118Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:26.041343Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:26.041369Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:26.041778Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:26.041824Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:26.041983Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:26.042229Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:26.042255Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:26.042317Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:26.042455Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:26.042497Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:26.042799Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:26.042909Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:26.042918Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:26.043111Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:26.043338Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:26.043488Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:26.043507Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:26.043603Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:26.043743Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:26.043878Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:26.043912Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:26.043946Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:26.044015Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:26.044079Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:26.044190Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:26.044421Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:26.044626Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:26.044639Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:26.044656Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:26.044698Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:26.044843Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:26.045149Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:26.045169Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:26.045295Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:26.045378Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:26.045403Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:26.045448Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:26.045562Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:26.045565Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:26.045583Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:26.045719Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:26.045868Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:26.046011Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:26.046016Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:26.046118Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:26.046184Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:26.046341Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:26.046484Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:26.046660Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-15T01:58:26.046782Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:26.047547Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:26.048401Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:26.048623Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:26.049049Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=16 success=true
2026-09-15T01:58:26.049413Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:26.049672Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=17 success=true
2026-09-15T01:58:26.173817Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=124 success=true
2026-09-15T01:58:26.174253Z  INFO local_candidate{attempt=2 proposal=87}: costed final placed program final_cycles=296513 final_exchange=104640
2026-09-15T01:58:26.177315Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=128 success=true
2026-09-15T01:58:26.177683Z  INFO local_candidate{attempt=3 proposal=91}: costed final placed program final_cycles=296639 final_exchange=104766
2026-09-15T01:58:26.234129Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=26 success=true
2026-09-15T01:58:26.234186Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=23 success=true
2026-09-15T01:58:26.260599Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=26 success=true
2026-09-15T01:58:26.261899Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=27 success=true
2026-09-15T01:58:26.529422Z  INFO local_candidate{attempt=2 proposal=87}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=250 success=true
2026-09-15T01:58:26.530847Z  INFO local_candidate{attempt=3 proposal=91}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=250 success=true
2026-09-15T01:58:26.566542Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: accepted local layout improvement attempt=2 before=304310 after=296513 delta=Changes { plans: {OperationId(3)}, boundaries: [], casts: [], early_casts: [], packing_rows: (None, None), parallel_reductions: (0, 0), disjoint_copy_sources: (false, false), cast_storage: (Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} }), Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} })), owners: (OwnerChoices { inputs: {}, operators: {}, results: {} }, OwnerChoices { inputs: {}, operators: {}, results: {} }) }
2026-09-15T01:58:26.613296Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/scoped-ownership/search4-state.json attempts=3 bytes=2806902
2026-09-15T01:58:26.634334Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened ownership proposal by exchange resource load candidates=41 baseline_cycles=23178 candidate_cycles=22484 baseline_pressure=14543 candidate_pressure=13909
2026-09-15T01:58:27.228153Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened local search round round=3 proposed=615 invalid=16 visited=2 not_cheaper=456 deduplicated=73 truncated=67 shortlisted=1
2026-09-15T01:58:27.228196Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: evaluating ordered local candidates concurrently candidates=1 threads=8
2026-09-15T01:58:27.254912Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: eliminated unread FP8 cast input padding clears removed=189
2026-09-15T01:58:27.261056Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: screened exchange table geometry expansion_ms=26 expansion_and_footprint_ms=32 estimated_row_bytes=7296 heuristic_row_bytes=25332 geometry_fragments_per_tile=839 fragment_limit=16384
2026-09-15T01:58:27.271652Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=10 success=true
2026-09-15T01:58:27.272435Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:27.272634Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:27.273069Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:27.273322Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:27.273543Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:27.273571Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:27.274051Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:27.274259Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:27.274467Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:27.274602Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=32 candidates=16 ordinary_horizon=81 paired_horizon=150 use_paired=false
2026-09-15T01:58:27.274663Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=49 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-15T01:58:27.275057Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:27.275091Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:27.275501Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:27.275534Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:27.275547Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:27.275867Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:27.275915Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=5 ordinary_horizon=172 paired_horizon=243 use_paired=false
2026-09-15T01:58:27.275922Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:27.276265Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:27.276339Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:27.276546Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:27.276625Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:27.277045Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:27.277365Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:27.277390Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:27.278320Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:27.278585Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:27.278716Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=33 candidates=20 ordinary_horizon=399 paired_horizon=777 use_paired=false
2026-09-15T01:58:27.278898Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:27.281408Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=9 success=true
2026-09-15T01:58:27.282392Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-15T01:58:27.286066Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-15T01:58:27.286421Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-15T01:58:27.305142Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: exchange table and repeat patch storage exchange_table_bytes=4692 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-15T01:58:27.366878Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=17 success=true
2026-09-15T01:58:27.366928Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: placing generated tile programs linked_end=380136 host_code_base=380136 host_code_bytes=1884 generated_code_bytes=9068 exchange_table_bytes=4692 executable_ranges=[(377140, 377144), (379156, 379160), (382088, 524288)]
2026-09-15T01:58:27.366966Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: allocated package support memory linked_end=380136 profile_bytes=736 exchange_table_bytes=4692 host_code_bytes=1884 host_data_bytes=1140 generated_code_bytes=9068 code_address=382088 available_ranges=[(327680, 360448), (363348, 376832), (409600, 949168)]
2026-09-15T01:58:27.387680Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=15 success=true
2026-09-15T01:58:27.388527Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-15T01:58:27.388738Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-15T01:58:27.389143Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-15T01:58:27.389252Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-15T01:58:27.389339Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-15T01:58:27.389483Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-15T01:58:27.389791Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-15T01:58:27.389906Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-15T01:58:27.390047Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-15T01:58:27.390101Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-15T01:58:27.390349Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-15T01:58:27.390522Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-15T01:58:27.391521Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-15T01:58:27.391675Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-15T01:58:27.391794Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-15T01:58:27.392157Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-15T01:58:27.392322Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-15T01:58:27.392493Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-15T01:58:27.392499Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-15T01:58:27.392514Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-15T01:58:27.392652Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-15T01:58:27.392928Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-15T01:58:27.393006Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-15T01:58:27.393070Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-15T01:58:27.393332Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-15T01:58:27.393368Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-15T01:58:27.393446Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-15T01:58:27.393510Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-15T01:58:27.393605Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-15T01:58:27.393822Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-15T01:58:27.393868Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-15T01:58:27.393896Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-15T01:58:27.394013Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-15T01:58:27.394239Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-15T01:58:27.394287Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-15T01:58:27.394290Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-15T01:58:27.394392Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-15T01:58:27.394442Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-15T01:58:27.394488Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-15T01:58:27.394533Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-15T01:58:27.394591Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-15T01:58:27.394675Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-15T01:58:27.394913Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-15T01:58:27.394929Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-15T01:58:27.394971Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-15T01:58:27.394977Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-15T01:58:27.395019Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-15T01:58:27.395096Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-15T01:58:27.395162Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-15T01:58:27.395323Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-15T01:58:27.395591Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-15T01:58:27.395599Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-15T01:58:27.395764Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-15T01:58:27.395781Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-15T01:58:27.395996Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-15T01:58:27.396169Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-15T01:58:27.396273Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-15T01:58:27.396968Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-15T01:58:27.397444Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-15T01:58:27.398118Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-15T01:58:27.398388Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=10 success=true
2026-09-15T01:58:27.519092Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=120 success=true
2026-09-15T01:58:27.519429Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}: costed final placed program final_cycles=288413 final_exchange=102138
2026-09-15T01:58:27.565354Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=14 success=true
2026-09-15T01:58:27.592019Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=26 success=true
2026-09-15T01:58:27.865777Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:local_candidate{attempt=3 proposal=270}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=267 success=true
2026-09-15T01:58:27.874729Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: accepted local layout improvement attempt=3 before=296513 after=288413 delta=Changes { plans: {OperationId(20)}, boundaries: [ValueId(72)], casts: [], early_casts: [], packing_rows: (None, None), parallel_reductions: (0, 0), disjoint_copy_sources: (false, false), cast_storage: (Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} }), Some(CastStoragePolicy { default: Separate, operators: {}, sites: {} })), owners: (OwnerChoices { inputs: {}, operators: {}, results: {} }, OwnerChoices { inputs: {}, operators: {}, results: {} }) }
2026-09-15T01:58:27.937139Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/scoped-ownership/search4-state.json attempts=4 bytes=3092101
2026-09-15T01:58:27.945916Z  INFO ipu_codegen.package.build{tile_count=64 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=6468 success=true
2026-09-15T01:58:27.954734Z  INFO writing application package tiles=1472
2026-09-15T01:58:28.013781Z  INFO application package written
2026-09-15T01:58:28.016758Z  INFO reading application package
2026-09-15T01:58:28.132757Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-15T01:58:28.135054Z  INFO waiting for hardware ownership path=/tmp/ipu-stack-device.lock
2026-09-15T01:58:28.135069Z  INFO acquired hardware ownership path=/tmp/ipu-stack-device.lock
2026-09-15T01:58:28.135075Z  INFO opening IPU device path="/dev/ipu0"
2026-09-15T01:58:28.135111Z  INFO IPU device attached path=/dev/ipu0
2026-09-15T01:58:28.135115Z  INFO initializing IPU device
2026-09-15T01:58:28.143253Z  INFO IPU device initialized
2026-09-15T01:58:28.143259Z  INFO replaying device configuration register_writes=2003
2026-09-15T01:58:28.149035Z  INFO loading application tile_count=1472 final_mark=23
2026-09-15T01:58:28.342850Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-15T01:58:28.369489Z  INFO prepared reference inputs elapsed_ms=23
2026-09-15T01:58:28.376163Z  INFO configured host reference BLAS threads=4
referencePrecision=device
2026-09-15T01:58:28.420119Z  INFO evaluated host reference elapsed_ms=50
2026-09-15T01:58:28.421971Z  INFO starting host exchange session startup_mark=23
2026-09-15T01:58:28.421986Z  INFO attaching host exchange pages pages=2
2026-09-15T01:58:28.422736Z  INFO host exchange session started
2026-09-15T01:58:28.422747Z  INFO invoking host exchange call call="initialize" command=0 phases=70
2026-09-15T01:58:28.433168Z  INFO invoking host exchange call call="run" command=0 phases=11
profile=artifacts/structure-refactor-20260915/scoped-ownership/search4.profile.json tiles=1472 samples=57181
referenceMinimumCosineSimilarity=0.996962352
referenceInference=1 numericalTest=PASS
referenceMaximumAbsoluteError=0.215820 numericalTest=PASS
package=artifacts/structure-refactor-20260915/scoped-ownership/search4.ipuexe tiles=1472 hardwareTest=PASS