2026-09-12T12:47:57.958925Z  WARN PE capacity probe: RoPE omitted; layernorm epsilon remains 1e-6 instead of PE's 1e-5; numerical results are not PE model accuracy
2026-09-12T12:47:57.959947Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-12T12:48:16.900044Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: wrote planner memory profile path=artifacts/capacity-baseline-20260912/pe-b2-state/memory/baseline-451845-0000.json scope="baseline" peak_step=127 effective_peak_bytes=419624
2026-09-12T12:48:27.204491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=8296 expansion_and_footprint_ms=10304 estimated_row_bytes=108800 heuristic_row_bytes=332456 geometry_fragments_per_tile=11918 fragment_limit=16384
2026-09-12T12:48:27.400012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=1024
2026-09-12T12:48:28.101779Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: placed tile storage tiles=1472 shards=423999 elapsed_us=632639
2026-09-12T12:48:28.217661Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=21 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:48:28.217701Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=21 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.219460Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=21 tile=149 row_words=19 horizon=7895
2026-09-12T12:48:28.229687Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=19 transfers=2790 maximum_identical_destinations=1
2026-09-12T12:48:28.229724Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=19 initial_horizon=7863 selected_horizon=7863 endpoint_lower_bound=7680 lower_bound_gap=183 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.233493Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=19 tile=965 row_words=25 horizon=7863
2026-09-12T12:48:28.237775Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=5 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.237810Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=5 initial_horizon=3354 selected_horizon=3354 endpoint_lower_bound=3264 lower_bound_gap=90 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.239143Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=22 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:48:28.239183Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=22 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.241877Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=22 tile=1415 row_words=19 horizon=7895
2026-09-12T12:48:28.242474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=5 tile=1252 row_words=81 horizon=3354
2026-09-12T12:48:28.242635Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=17 transfers=2110 maximum_identical_destinations=1
2026-09-12T12:48:28.242671Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=17 initial_horizon=9573 selected_horizon=9573 endpoint_lower_bound=9216 lower_bound_gap=357 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.249262Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=7 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.249297Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=7 initial_horizon=4104 selected_horizon=4104 endpoint_lower_bound=4032 lower_bound_gap=72 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.251928Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=17 tile=16 row_words=50 horizon=9573
2026-09-12T12:48:28.253290Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=7 tile=1339 row_words=95 horizon=4104
2026-09-12T12:48:28.258559Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=23 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:48:28.258582Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=23 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.260328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=23 tile=1433 row_words=19 horizon=7895
2026-09-12T12:48:28.276835Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=6 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.276853Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=6 initial_horizon=3526 selected_horizon=3526 endpoint_lower_bound=3456 lower_bound_gap=70 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.279753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=6 tile=1310 row_words=84 horizon=3526
2026-09-12T12:48:28.291314Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=4 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.291348Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=4 initial_horizon=3903 selected_horizon=3903 endpoint_lower_bound=3840 lower_bound_gap=63 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.295024Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=4 tile=1223 row_words=87 horizon=3903
2026-09-12T12:48:28.319285Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=57 candidates=16 ordinary_horizon=1735 paired_horizon=1647 use_paired=false
2026-09-12T12:48:28.336827Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=10 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.336857Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=10 initial_horizon=5639 selected_horizon=5639 endpoint_lower_bound=5568 lower_bound_gap=71 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.341118Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=10 tile=1426 row_words=131 horizon=5639
2026-09-12T12:48:28.341614Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=8 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.341637Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=8 initial_horizon=4677 selected_horizon=4677 endpoint_lower_bound=4608 lower_bound_gap=69 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.345569Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=8 tile=1368 row_words=108 horizon=4677
2026-09-12T12:48:28.380422Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=53 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.380450Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=53 initial_horizon=6787 selected_horizon=6787 endpoint_lower_bound=6720 lower_bound_gap=67 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.390237Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=53 tile=1231 row_words=224 horizon=6787
2026-09-12T12:48:28.397405Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=15 candidates=16 ordinary_horizon=1657 paired_horizon=1768 use_paired=false
2026-09-12T12:48:28.405509Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=49 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.405539Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=49 initial_horizon=6637 selected_horizon=6637 endpoint_lower_bound=6560 lower_bound_gap=77 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.406173Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=9 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:48:28.406224Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=9 initial_horizon=5250 selected_horizon=5250 endpoint_lower_bound=5184 lower_bound_gap=66 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.409295Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=42 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.409328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=42 initial_horizon=5387 selected_horizon=5387 endpoint_lower_bound=5280 lower_bound_gap=107 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.410266Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=9 tile=1397 row_words=120 horizon=5250
2026-09-12T12:48:28.411435Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=49 tile=1178 row_words=205 horizon=6637
2026-09-12T12:48:28.416724Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=42 tile=1285 row_words=144 horizon=5387
2026-09-12T12:48:28.417329Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=59 transfers=8183 maximum_identical_destinations=1
2026-09-12T12:48:28.417353Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=59 initial_horizon=9009 selected_horizon=9009 endpoint_lower_bound=8192 lower_bound_gap=817 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.426834Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=59 tile=99 row_words=121 horizon=9009
2026-09-12T12:48:28.434157Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=12 transfers=2031 maximum_identical_destinations=1
2026-09-12T12:48:28.434177Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=12 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=512 lower_bound_gap=136 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.436094Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=12 tile=550 row_words=14 horizon=648
2026-09-12T12:48:28.467391Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=54 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.467412Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=54 initial_horizon=6804 selected_horizon=6804 endpoint_lower_bound=6720 lower_bound_gap=84 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.473683Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=54 tile=1244 row_words=224 horizon=6804
2026-09-12T12:48:28.487162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=50 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.487181Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=50 initial_horizon=6647 selected_horizon=6647 endpoint_lower_bound=6560 lower_bound_gap=87 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.493136Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=50 tile=1194 row_words=226 horizon=6647
2026-09-12T12:48:28.500729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=45 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.500761Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=45 initial_horizon=6299 selected_horizon=6299 endpoint_lower_bound=6240 lower_bound_gap=59 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.508447Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=45 tile=1129 row_words=164 horizon=6299
2026-09-12T12:48:28.573775Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=51 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.573804Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=51 initial_horizon=6772 selected_horizon=6772 endpoint_lower_bound=6720 lower_bound_gap=52 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.580280Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=51 tile=1202 row_words=225 horizon=6772
2026-09-12T12:48:28.611837Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=44 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.611861Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=44 initial_horizon=5978 selected_horizon=5978 endpoint_lower_bound=5920 lower_bound_gap=58 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.614728Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=43 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.614756Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=43 initial_horizon=5667 selected_horizon=5667 endpoint_lower_bound=5600 lower_bound_gap=67 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.616723Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=44 tile=1116 row_words=155 horizon=5978
2026-09-12T12:48:28.622040Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=43 tile=1103 row_words=144 horizon=5667
2026-09-12T12:48:28.622184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=13 candidates=16 ordinary_horizon=1727 paired_horizon=1804 use_paired=false
2026-09-12T12:48:28.626192Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=0 transfers=37840 maximum_identical_destinations=1
2026-09-12T12:48:28.626245Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=0 initial_horizon=1149 selected_horizon=1149 endpoint_lower_bound=768 lower_bound_gap=381 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.640958Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=0 tile=116 row_words=233 horizon=1149
2026-09-12T12:48:28.656169Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=52 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.656187Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=52 initial_horizon=6774 selected_horizon=6774 endpoint_lower_bound=6720 lower_bound_gap=54 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.662343Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=52 tile=1215 row_words=225 horizon=6774
2026-09-12T12:48:28.719113Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=46 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.719157Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=46 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.729839Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=46 tile=933 row_words=175 horizon=6620
2026-09-12T12:48:28.786917Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=71 transfers=2045 maximum_identical_destinations=1
2026-09-12T12:48:28.786943Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=71 initial_horizon=4249 selected_horizon=4249 endpoint_lower_bound=4096 lower_bound_gap=153 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.788167Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=71 tile=0 row_words=33 horizon=4249
2026-09-12T12:48:28.860637Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=64 transfers=1915 maximum_identical_destinations=1
2026-09-12T12:48:28.860692Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=64 initial_horizon=4761 selected_horizon=4761 endpoint_lower_bound=4608 lower_bound_gap=153 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.872447Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=64 tile=221 row_words=23 horizon=4761
2026-09-12T12:48:28.874493Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=78 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:28.874524Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=78 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.876149Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=78 tile=1255 row_words=23 horizon=7125
2026-09-12T12:48:28.879162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=38 transfers=1022 maximum_identical_destinations=1
2026-09-12T12:48:28.879188Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=38 initial_horizon=2086 selected_horizon=2086 endpoint_lower_bound=1280 lower_bound_gap=806 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.883119Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=38 tile=158 row_words=16 horizon=2086
2026-09-12T12:48:28.892320Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=79 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:28.892339Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=79 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.893916Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=79 tile=1143 row_words=23 horizon=7125
2026-09-12T12:48:28.939151Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=47 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:28.939182Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=47 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.946861Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=47 tile=1151 row_words=185 horizon=6620
2026-09-12T12:48:28.950311Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=37 transfers=18451 maximum_identical_destinations=1
2026-09-12T12:48:28.950370Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=37 initial_horizon=2480 selected_horizon=2480 endpoint_lower_bound=1024 lower_bound_gap=1456 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:28.961070Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=37 tile=50 row_words=124 horizon=2480
2026-09-12T12:48:29.068399Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=48 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:29.068436Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=48 initial_horizon=6630 selected_horizon=6630 endpoint_lower_bound=6560 lower_bound_gap=70 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.076565Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=48 tile=1167 row_words=195 horizon=6630
2026-09-12T12:48:29.195364Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=101 transfers=8180 maximum_identical_destinations=1
2026-09-12T12:48:29.195403Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=101 initial_horizon=2059 selected_horizon=2059 endpoint_lower_bound=768 lower_bound_gap=1291 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.202199Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=101 tile=327 row_words=32 horizon=2059
2026-09-12T12:48:29.220759Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=102 transfers=1330 maximum_identical_destinations=1
2026-09-12T12:48:29.220779Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=102 initial_horizon=742 selected_horizon=742 endpoint_lower_bound=640 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.221900Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=102 tile=105 row_words=15 horizon=742
2026-09-12T12:48:29.238928Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=103 transfers=1535 maximum_identical_destinations=1
2026-09-12T12:48:29.238946Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=103 initial_horizon=204 selected_horizon=204 endpoint_lower_bound=64 lower_bound_gap=140 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.240375Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=103 tile=80 row_words=21 horizon=204
2026-09-12T12:48:29.300337Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=104 transfers=1023 maximum_identical_destinations=1
2026-09-12T12:48:29.300364Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=104 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4092 lower_bound_gap=58 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.301355Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=104 tile=0 row_words=1028 horizon=4150
2026-09-12T12:48:29.329096Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=105 candidates=42 ordinary_horizon=4202 paired_horizon=4832 use_paired=false
2026-09-12T12:48:29.357437Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=106 transfers=1578 maximum_identical_destinations=1
2026-09-12T12:48:29.357465Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=106 initial_horizon=2390 selected_horizon=2390 endpoint_lower_bound=768 lower_bound_gap=1622 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.359947Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=106 tile=1339 row_words=14 horizon=2390
2026-09-12T12:48:29.374547Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=107 transfers=1344 maximum_identical_destinations=1
2026-09-12T12:48:29.374569Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=107 initial_horizon=774 selected_horizon=774 endpoint_lower_bound=672 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.375609Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=107 tile=13 row_words=27 horizon=774
2026-09-12T12:48:29.424044Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=110 candidates=30 ordinary_horizon=1145 paired_horizon=2480 use_paired=false
2026-09-12T12:48:29.436883Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=111 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:48:29.436900Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=111 initial_horizon=1071 selected_horizon=1071 endpoint_lower_bound=256 lower_bound_gap=815 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.438341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=111 tile=866 row_words=10 horizon=1071
2026-09-12T12:48:29.468886Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=92 candidates=30 ordinary_horizon=1145 paired_horizon=2480 use_paired=false
2026-09-12T12:48:29.481832Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=93 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:48:29.481850Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=93 initial_horizon=1071 selected_horizon=1071 endpoint_lower_bound=256 lower_bound_gap=815 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.483404Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=93 tile=866 row_words=10 horizon=1071
2026-09-12T12:48:29.566494Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=98 candidates=64 ordinary_horizon=231 paired_horizon=1250 use_paired=false
2026-09-12T12:48:29.730443Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=11 transfers=73796 maximum_identical_destinations=1
2026-09-12T12:48:29.730489Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=11 initial_horizon=1276 selected_horizon=1276 endpoint_lower_bound=1024 lower_bound_gap=252 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.751507Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=40 transfers=19328 maximum_identical_destinations=1
2026-09-12T12:48:29.751543Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=40 initial_horizon=6337 selected_horizon=6337 endpoint_lower_bound=6240 lower_bound_gap=97 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.763085Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=40 tile=1051 row_words=215 horizon=6337
2026-09-12T12:48:29.769626Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=11 tile=263 row_words=317 horizon=1276
2026-09-12T12:48:29.972418Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=41 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:48:29.972459Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=41 initial_horizon=5858 selected_horizon=5858 endpoint_lower_bound=5760 lower_bound_gap=98 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:29.979772Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=41 tile=1272 row_words=154 horizon=5858
2026-09-12T12:48:29.992629Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=69 candidates=16 ordinary_horizon=1727 paired_horizon=1804 use_paired=false
2026-09-12T12:48:30.116415Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=82 candidates=128 ordinary_horizon=178 paired_horizon=504 use_paired=false
2026-09-12T12:48:30.130181Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=83 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:48:30.130228Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=83 initial_horizon=868 selected_horizon=868 endpoint_lower_bound=256 lower_bound_gap=612 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.131381Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=83 tile=866 row_words=10 horizon=868
2026-09-12T12:48:30.276589Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=74 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:30.276641Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=74 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.277936Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=74 tile=1326 row_words=23 horizon=7129
2026-09-12T12:48:30.289856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=75 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:30.289873Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=75 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.291115Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=75 tile=1342 row_words=22 horizon=7129
2026-09-12T12:48:30.302400Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=76 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:30.302415Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=76 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.303645Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=76 tile=967 row_words=23 horizon=7125
2026-09-12T12:48:30.314980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=77 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:48:30.314993Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=77 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.316429Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=77 tile=1239 row_words=23 horizon=7125
2026-09-12T12:48:30.336510Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=73 transfers=2728 maximum_identical_destinations=1
2026-09-12T12:48:30.336527Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=73 initial_horizon=7117 selected_horizon=7117 endpoint_lower_bound=6912 lower_bound_gap=205 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.338425Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=73 tile=773 row_words=30 horizon=7117
2026-09-12T12:48:30.356636Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=55 candidates=8 ordinary_horizon=1309 paired_horizon=1222 use_paired=false
2026-09-12T12:48:30.414167Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=55 transfers=73814 maximum_identical_destinations=1
2026-09-12T12:48:30.414197Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=55 initial_horizon=1309 selected_horizon=1309 endpoint_lower_bound=1024 lower_bound_gap=285 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.451130Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=55 tile=171 row_words=181 horizon=1309
2026-09-12T12:48:30.943170Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=66 transfers=66960 maximum_identical_destinations=1
2026-09-12T12:48:30.943233Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=66 initial_horizon=10992 selected_horizon=10992 endpoint_lower_bound=9600 lower_bound_gap=1392 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:30.991807Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=66 tile=672 row_words=276 horizon=10992
2026-09-12T12:48:33.027907Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=67 candidates=8 ordinary_horizon=1470 paired_horizon=1484 use_paired=false
2026-09-12T12:48:33.124403Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=67 transfers=73800 maximum_identical_destinations=1
2026-09-12T12:48:33.124442Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=67 initial_horizon=1470 selected_horizon=1470 endpoint_lower_bound=1024 lower_bound_gap=446 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:33.188585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=67 tile=722 row_words=272 horizon=1470
2026-09-12T12:48:33.373412Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=39 transfers=37136 maximum_identical_destinations=1
2026-09-12T12:48:33.373456Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=39 initial_horizon=7764 selected_horizon=7764 endpoint_lower_bound=3968 lower_bound_gap=3796 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:33.457991Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=39 tile=5 row_words=891 horizon=7764
2026-09-12T12:48:34.963027Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=87 transfers=82504 maximum_identical_destinations=1
2026-09-12T12:48:34.963090Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=87 initial_horizon=9256 selected_horizon=9256 endpoint_lower_bound=5632 lower_bound_gap=3624 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:35.031852Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=87 tile=62 row_words=1502 horizon=9256
2026-09-12T12:48:36.613358Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=1 transfers=22216 maximum_identical_destinations=1
2026-09-12T12:48:36.613399Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=1 initial_horizon=8621 selected_horizon=8621 endpoint_lower_bound=4480 lower_bound_gap=4141 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:36.705544Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=1 tile=87 row_words=1142 horizon=8621
2026-09-12T12:48:36.824127Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=2 transfers=7424 maximum_identical_destinations=1
2026-09-12T12:48:36.824162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=2 initial_horizon=5094 selected_horizon=5094 endpoint_lower_bound=4992 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:36.827670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=2 tile=1165 row_words=135 horizon=5094
2026-09-12T12:48:38.118638Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=60 transfers=37192 maximum_identical_destinations=1
2026-09-12T12:48:38.118672Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=60 initial_horizon=16088 selected_horizon=16088 endpoint_lower_bound=15104 lower_bound_gap=984 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:38.277923Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=60 tile=178 row_words=2027 horizon=16088
2026-09-12T12:48:38.370280Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=61 transfers=5874 maximum_identical_destinations=1
2026-09-12T12:48:38.370306Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=61 initial_horizon=8746 selected_horizon=8746 endpoint_lower_bound=6912 lower_bound_gap=1834 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:38.374631Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=61 tile=1041 row_words=40 horizon=8746
2026-09-12T12:48:39.394378Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=72 candidates=36928 ordinary_horizon=11966 paired_horizon=32384 use_paired=false
2026-09-12T12:48:39.589588Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=72 transfers=37056 maximum_identical_destinations=1
2026-09-12T12:48:39.589626Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=72 initial_horizon=11966 selected_horizon=11966 endpoint_lower_bound=7552 lower_bound_gap=4414 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:39.675922Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=72 tile=280 row_words=1084 horizon=11966
2026-09-12T12:48:41.503583Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=18 candidates=36928 ordinary_horizon=15878 paired_horizon=41027 use_paired=false
2026-09-12T12:48:41.726492Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=80 candidates=16 ordinary_horizon=2729 paired_horizon=2611 use_paired=false
2026-09-12T12:48:41.747022Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=18 transfers=37216 maximum_identical_destinations=1
2026-09-12T12:48:41.747063Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=18 initial_horizon=15878 selected_horizon=15878 endpoint_lower_bound=13056 lower_bound_gap=2822 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:41.855341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=18 tile=20 row_words=1167 horizon=15878
2026-09-12T12:48:41.863326Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=80 transfers=147594 maximum_identical_destinations=1
2026-09-12T12:48:41.863351Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=80 initial_horizon=2729 selected_horizon=2729 endpoint_lower_bound=2048 lower_bound_gap=681 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:41.976555Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=80 tile=81 row_words=552 horizon=2729
2026-09-12T12:48:42.786296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=24 candidates=24 ordinary_horizon=3921 paired_horizon=4529 use_paired=false
2026-09-12T12:48:43.128302Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=24 transfers=221370 maximum_identical_destinations=1
2026-09-12T12:48:43.128348Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=24 initial_horizon=3921 selected_horizon=3921 endpoint_lower_bound=3072 lower_bound_gap=849 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:43.394945Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=24 tile=117 row_words=637 horizon=3921
2026-09-12T12:48:51.893166Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=62 candidates=32 ordinary_horizon=4819 paired_horizon=4557 use_paired=false
2026-09-12T12:48:52.405054Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=62 transfers=295194 maximum_identical_destinations=1
2026-09-12T12:48:52.405113Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=62 initial_horizon=4819 selected_horizon=4819 endpoint_lower_bound=4096 lower_bound_gap=723 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:48:52.820119Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=62 tile=85 row_words=830 horizon=4819
2026-09-12T12:49:08.899727Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=65 candidates=147712 ordinary_horizon=20996 paired_horizon=109095 use_paired=false
2026-09-12T12:49:09.814755Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=65 transfers=148192 maximum_identical_destinations=1
2026-09-12T12:49:09.814793Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=65 initial_horizon=20996 selected_horizon=20996 endpoint_lower_bound=18432 lower_bound_gap=2564 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:10.180292Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=65 tile=305 row_words=4246 horizon=20996
2026-09-12T12:49:14.122158Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=26 transfers=166035 maximum_identical_destinations=1
2026-09-12T12:49:14.122195Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=26 initial_horizon=3553 selected_horizon=3553 endpoint_lower_bound=3072 lower_bound_gap=481 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:14.283903Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=26 tile=58 row_words=732 horizon=3553
2026-09-12T12:49:14.322724Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=20 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:49:14.322748Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=20 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:14.323963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=20 tile=515 row_words=19 horizon=7895
2026-09-12T12:49:14.355883Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=3 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:14.355899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=3 initial_horizon=4509 selected_horizon=4509 endpoint_lower_bound=4416 lower_bound_gap=93 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:14.358823Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=3 tile=1194 row_words=99 horizon=4509
2026-09-12T12:49:14.425103Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=62 success=true
2026-09-12T12:49:14.428085Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=device/attention_merge_f16.S name="attention_merge_v64_p64_k64_out16" target=ipu21
2026-09-12T12:49:14.477018Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/1eecf687d13d2d4ba04bf44f125421dc7cff9dbe57f684cb775b083a3c765de7/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/1eecf687d13d2d4ba04bf44f125421dc7cff9dbe57f684cb775b083a3c765de7/kernel.json
2026-09-12T12:49:14.477446Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=device/attention_merge_f16.S name="attention_merge_v64_p64_k64_out32" target=ipu21
2026-09-12T12:49:14.528351Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/8d06155775a95425334eb6472196d3dcb2989b53116d10ef524f2b39f24c67c5/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/8d06155775a95425334eb6472196d3dcb2989b53116d10ef524f2b39f24c67c5/kernel.json
2026-09-12T12:49:14.528526Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=device/attention_merge_f16.S name="attention_merge_v128_p128_k640_out16" target=ipu21
2026-09-12T12:49:14.574741Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/373f0959bdc5a0b2c8d5058419bcf2e96e5bf091cdf8fd9a661a3e080259bbc4/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/373f0959bdc5a0b2c8d5058419bcf2e96e5bf091cdf8fd9a661a3e080259bbc4/kernel.json
2026-09-12T12:49:14.574841Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=149 success=true
2026-09-12T12:49:14.582605Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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
2026-09-12T12:49:15.881045Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=74628 maximum_uncompressed_repeat_patch_bytes=192 maximum_elided_arithmetic_patch_bytes=192
2026-09-12T12:49:19.242436Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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=209 success=true
2026-09-12T12:49:19.242485Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=389340 host_code_base=389344 host_code_bytes=8012 generated_code_bytes=14116 exchange_table_bytes=74628 executable_ranges=[(377524, 377528), (377916, 377920), (378820, 378824), (379524, 379528), (379692, 379696), (381428, 381432), (383444, 383448), (385156, 385160), (387172, 387176), (387924, 387928), (388588, 388592), (389340, 389344), (397424, 524288)]
2026-09-12T12:49:19.242516Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=389340 profile_bytes=0 exchange_table_bytes=74628 host_code_bytes=8012 host_data_bytes=5144 generated_code_bytes=14116 code_address=397424 available_ranges=[(327680, 360448), (367352, 376832), (507904, 949168)]
2026-09-12T12:49:19.774367Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: placed tile storage tiles=1472 shards=423999 elapsed_us=531838
2026-09-12T12:49:19.848433Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=605 success=true
2026-09-12T12:49:19.867562Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-12T12:49:19.917508Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-12T12:49:19.921821Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:19.921841Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=4104 selected_horizon=4104 endpoint_lower_bound=4032 lower_bound_gap=72 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:19.926854Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=1339 row_words=95 horizon=4104
2026-09-12T12:49:19.957111Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-12T12:49:19.958559Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-12T12:49:19.960916Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-12T12:49:19.971640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-12T12:49:19.971854Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-12T12:49:19.974167Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-12T12:49:19.981907Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=53 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:19.981933Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=53 initial_horizon=6787 selected_horizon=6787 endpoint_lower_bound=6720 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:19.987770Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-12T12:49:19.990313Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-12T12:49:19.991921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=53 tile=1231 row_words=224 horizon=6787
2026-09-12T12:49:19.997094Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=45 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:19.997117Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=6299 selected_horizon=6299 endpoint_lower_bound=6240 lower_bound_gap=59 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.003351Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-12T12:49:20.006560Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=45 tile=1129 row_words=164 horizon=6299
2026-09-12T12:49:20.020246Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-12T12:49:20.027218Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=43 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.027233Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=43 initial_horizon=5667 selected_horizon=5667 endpoint_lower_bound=5600 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.027349Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-12T12:49:20.031420Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.031444Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=4677 selected_horizon=4677 endpoint_lower_bound=4608 lower_bound_gap=69 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.033574Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=43 tile=1103 row_words=144 horizon=5667
2026-09-12T12:49:20.036490Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=1368 row_words=108 horizon=4677
2026-09-12T12:49:20.062138Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-12T12:49:20.069437Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=2110 maximum_identical_destinations=1
2026-09-12T12:49:20.069463Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=9363 selected_horizon=9363 endpoint_lower_bound=9216 lower_bound_gap=147 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.069693Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=42 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.069710Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=5387 selected_horizon=5387 endpoint_lower_bound=5280 lower_bound_gap=107 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.072914Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-12T12:49:20.077773Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=17 tile=16 row_words=50 horizon=9363
2026-09-12T12:49:20.077921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=42 tile=1285 row_words=144 horizon=5387
2026-09-12T12:49:20.079160Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-12T12:49:20.080677Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-12T12:49:20.083771Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-12T12:49:20.089455Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=49 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.089476Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=49 initial_horizon=6637 selected_horizon=6637 endpoint_lower_bound=6560 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.090376Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-12T12:49:20.093363Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.093377Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5250 selected_horizon=5250 endpoint_lower_bound=5184 lower_bound_gap=66 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.098162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=1397 row_words=120 horizon=5250
2026-09-12T12:49:20.099900Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=49 tile=1178 row_words=205 horizon=6637
2026-09-12T12:49:20.112560Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-12T12:49:20.119589Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=54 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.119607Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=54 initial_horizon=6804 selected_horizon=6804 endpoint_lower_bound=6720 lower_bound_gap=84 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.129363Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=54 tile=1244 row_words=224 horizon=6804
2026-09-12T12:49:20.143589Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-12T12:49:20.148779Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=46 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.148794Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.151732Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-12T12:49:20.154402Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=46 tile=933 row_words=175 horizon=6620
2026-09-12T12:49:20.155029Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.155043Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=5639 selected_horizon=5639 endpoint_lower_bound=5568 lower_bound_gap=71 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.160127Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=1426 row_words=131 horizon=5639
2026-09-12T12:49:20.170087Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-12T12:49:20.178247Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=44 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.178277Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=5978 selected_horizon=5978 endpoint_lower_bound=5920 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.179813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-12T12:49:20.186707Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=44 tile=1116 row_words=155 horizon=5978
2026-09-12T12:49:20.187681Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-12T12:49:20.190249Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=59 transfers=8183 maximum_identical_destinations=1
2026-09-12T12:49:20.190290Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=8351 selected_horizon=8351 endpoint_lower_bound=8192 lower_bound_gap=159 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.201693Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-12T12:49:20.202099Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=21 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:49:20.202108Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.203300Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=21 tile=149 row_words=19 horizon=7895
2026-09-12T12:49:20.206189Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=59 tile=99 row_words=120 horizon=8351
2026-09-12T12:49:20.213487Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-12T12:49:20.213844Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=22 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:49:20.213852Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.214953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=22 tile=1415 row_words=19 horizon=7895
2026-09-12T12:49:20.216531Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-12T12:49:20.219231Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-12T12:49:20.219994Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=12 transfers=2031 maximum_identical_destinations=1
2026-09-12T12:49:20.220005Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=512 lower_bound_gap=136 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.220350Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-12T12:49:20.221494Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=19 transfers=2790 maximum_identical_destinations=1
2026-09-12T12:49:20.221513Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=7863 selected_horizon=7863 endpoint_lower_bound=7680 lower_bound_gap=183 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.222071Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=12 tile=550 row_words=14 horizon=648
2026-09-12T12:49:20.222590Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=50 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.222604Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=50 initial_horizon=6647 selected_horizon=6647 endpoint_lower_bound=6560 lower_bound_gap=87 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.224181Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=19 tile=965 row_words=25 horizon=7863
2026-09-12T12:49:20.224810Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-12T12:49:20.225166Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=23 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:49:20.225172Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.226393Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=23 tile=1433 row_words=19 horizon=7895
2026-09-12T12:49:20.229659Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=50 tile=1194 row_words=226 horizon=6647
2026-09-12T12:49:20.238965Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-12T12:49:20.239501Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=20 transfers=1440 maximum_identical_destinations=1
2026-09-12T12:49:20.239514Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.241097Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=20 tile=515 row_words=19 horizon=7895
2026-09-12T12:49:20.261365Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-12T12:49:20.270569Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=38 transfers=1022 maximum_identical_destinations=1
2026-09-12T12:49:20.270591Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=2144 selected_horizon=2144 endpoint_lower_bound=1280 lower_bound_gap=864 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.276198Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=38 tile=131 row_words=17 horizon=2144
2026-09-12T12:49:20.298825Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-12T12:49:20.309121Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=47 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.309148Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=47 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.312521Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-12T12:49:20.318280Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=51 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.318296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=51 initial_horizon=6772 selected_horizon=6772 endpoint_lower_bound=6720 lower_bound_gap=52 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.318796Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=47 tile=1151 row_words=185 horizon=6620
2026-09-12T12:49:20.320409Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-12T12:49:20.326813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=51 tile=1202 row_words=225 horizon=6772
2026-09-12T12:49:20.356749Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-12T12:49:20.365061Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=37 transfers=18451 maximum_identical_destinations=1
2026-09-12T12:49:20.365076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=2480 selected_horizon=2480 endpoint_lower_bound=1024 lower_bound_gap=1456 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.373927Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=37 tile=50 row_words=124 horizon=2480
2026-09-12T12:49:20.377154Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-12T12:49:20.380174Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.380192Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=4509 selected_horizon=4509 endpoint_lower_bound=4416 lower_bound_gap=93 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.384256Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=1194 row_words=99 horizon=4509
2026-09-12T12:49:20.404871Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-12T12:49:20.413999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=40 transfers=19328 maximum_identical_destinations=1
2026-09-12T12:49:20.414018Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=6337 selected_horizon=6337 endpoint_lower_bound=6240 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.425330Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=40 tile=1051 row_words=215 horizon=6337
2026-09-12T12:49:20.444949Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-12T12:49:20.452904Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=52 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.452924Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=6774 selected_horizon=6774 endpoint_lower_bound=6720 lower_bound_gap=54 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.462975Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-12T12:49:20.463656Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=52 tile=1215 row_words=225 horizon=6774
2026-09-12T12:49:20.471982Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-12T12:49:20.473760Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=48 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.473796Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=6630 selected_horizon=6630 endpoint_lower_bound=6560 lower_bound_gap=70 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.474806Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-12T12:49:20.476811Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.476846Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3903 selected_horizon=3903 endpoint_lower_bound=3840 lower_bound_gap=63 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.482962Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=1223 row_words=87 horizon=3903
2026-09-12T12:49:20.483072Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-12T12:49:20.487422Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=48 tile=1167 row_words=195 horizon=6630
2026-09-12T12:49:20.528376Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-12T12:49:20.534367Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=41 transfers=14720 maximum_identical_destinations=1
2026-09-12T12:49:20.534383Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=5858 selected_horizon=5858 endpoint_lower_bound=5760 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.535032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-12T12:49:20.537695Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.537713Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=3354 selected_horizon=3354 endpoint_lower_bound=3264 lower_bound_gap=90 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.540387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=41 tile=1272 row_words=154 horizon=5858
2026-09-12T12:49:20.541700Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=1252 row_words=81 horizon=3354
2026-09-12T12:49:20.548094Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-12T12:49:20.575357Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=99
2026-09-12T12:49:20.577841Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=85
2026-09-12T12:49:20.584247Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=92
2026-09-12T12:49:20.585009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=86
2026-09-12T12:49:20.585800Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-12T12:49:20.585970Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=100
2026-09-12T12:49:20.588587Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=6784 maximum_identical_destinations=1
2026-09-12T12:49:20.588614Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=3526 selected_horizon=3526 endpoint_lower_bound=3456 lower_bound_gap=70 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.589189Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=88
2026-09-12T12:49:20.592568Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=1310 row_words=84 horizon=3526
2026-09-12T12:49:20.592879Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=89
2026-09-12T12:49:20.595441Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=90
2026-09-12T12:49:20.596685Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=91
2026-09-12T12:49:20.597989Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=93 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:49:20.598005Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=93 initial_horizon=470 selected_horizon=470 endpoint_lower_bound=256 lower_bound_gap=214 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.599052Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=93 tile=882 row_words=10 horizon=470
2026-09-12T12:49:20.603660Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=110
2026-09-12T12:49:20.604939Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=94
2026-09-12T12:49:20.613040Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=95
2026-09-12T12:49:20.622467Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=96
2026-09-12T12:49:20.625156Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=111 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:49:20.625192Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=111 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=256 lower_bound_gap=392 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.625569Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=97
2026-09-12T12:49:20.626862Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=111 tile=882 row_words=10 horizon=648
2026-09-12T12:49:20.633276Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=106 transfers=1578 maximum_identical_destinations=1
2026-09-12T12:49:20.633306Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=106 initial_horizon=984 selected_horizon=984 endpoint_lower_bound=768 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.634262Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=112
2026-09-12T12:49:20.635729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=106 tile=1339 row_words=14 horizon=984
2026-09-12T12:49:20.637646Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=113
2026-09-12T12:49:20.639905Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=98
2026-09-12T12:49:20.648872Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=107
2026-09-12T12:49:20.649405Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=107 transfers=1344 maximum_identical_destinations=1
2026-09-12T12:49:20.649417Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=107 initial_horizon=774 selected_horizon=774 endpoint_lower_bound=672 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.650585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=107 tile=13 row_words=27 horizon=774
2026-09-12T12:49:20.659007Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=108
2026-09-12T12:49:20.668196Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=109
2026-09-12T12:49:20.685592Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=71
2026-09-12T12:49:20.686372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=71 transfers=2045 maximum_identical_destinations=1
2026-09-12T12:49:20.686384Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=71 initial_horizon=4249 selected_horizon=4249 endpoint_lower_bound=4096 lower_bound_gap=153 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.688013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=71 tile=0 row_words=33 horizon=4249
2026-09-12T12:49:20.710808Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=101 transfers=8180 maximum_identical_destinations=1
2026-09-12T12:49:20.710839Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=101 initial_horizon=1184 selected_horizon=1184 endpoint_lower_bound=768 lower_bound_gap=416 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.716758Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=101 tile=1095 row_words=30 horizon=1184
2026-09-12T12:49:20.730639Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=102
2026-09-12T12:49:20.731117Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=102 transfers=1330 maximum_identical_destinations=1
2026-09-12T12:49:20.731128Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=102 initial_horizon=742 selected_horizon=742 endpoint_lower_bound=640 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.732255Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=102 tile=105 row_words=15 horizon=742
2026-09-12T12:49:20.735315Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-12T12:49:20.737670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=7424 maximum_identical_destinations=1
2026-09-12T12:49:20.737688Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=5094 selected_horizon=5094 endpoint_lower_bound=4992 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.741072Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=1165 row_words=135 horizon=5094
2026-09-12T12:49:20.746878Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=103
2026-09-12T12:49:20.747504Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=103 transfers=1535 maximum_identical_destinations=1
2026-09-12T12:49:20.747517Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=103 initial_horizon=204 selected_horizon=204 endpoint_lower_bound=64 lower_bound_gap=140 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.748981Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=103 tile=80 row_words=21 horizon=204
2026-09-12T12:49:20.757878Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=104
2026-09-12T12:49:20.757982Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=64
2026-09-12T12:49:20.758253Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=104 transfers=1023 maximum_identical_destinations=1
2026-09-12T12:49:20.758262Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=104 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4092 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.758510Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=64 transfers=1915 maximum_identical_destinations=1
2026-09-12T12:49:20.758519Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=64 initial_horizon=4761 selected_horizon=4761 endpoint_lower_bound=4608 lower_bound_gap=153 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.759095Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=104 tile=0 row_words=1028 horizon=4150
2026-09-12T12:49:20.765184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=64 tile=221 row_words=23 horizon=4761
2026-09-12T12:49:20.771787Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=105
2026-09-12T12:49:20.867309Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=69
2026-09-12T12:49:20.873859Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=37840 maximum_identical_destinations=1
2026-09-12T12:49:20.873895Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=1002 selected_horizon=1002 endpoint_lower_bound=768 lower_bound_gap=234 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:20.879438Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=70
2026-09-12T12:49:20.886348Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=68
2026-09-12T12:49:20.890190Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=119 row_words=233 horizon=1002
2026-09-12T12:49:20.969956Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=78
2026-09-12T12:49:20.970409Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=78 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:20.970424Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=78 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.971914Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=78 tile=1255 row_words=23 horizon=7125
2026-09-12T12:49:20.986571Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=79
2026-09-12T12:49:20.986885Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=79 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:20.986892Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=79 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:20.987872Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=79 tile=1143 row_words=23 horizon=7125
2026-09-12T12:49:21.038999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-12T12:49:21.067638Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=73796 maximum_identical_destinations=1
2026-09-12T12:49:21.067661Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=1276 selected_horizon=1276 endpoint_lower_bound=1024 lower_bound_gap=252 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.104659Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=263 row_words=317 horizon=1276
2026-09-12T12:49:21.121491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=81
2026-09-12T12:49:21.151263Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=82
2026-09-12T12:49:21.168939Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=83 transfers=1020 maximum_identical_destinations=1
2026-09-12T12:49:21.168963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=83 initial_horizon=470 selected_horizon=470 endpoint_lower_bound=256 lower_bound_gap=214 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:21.170165Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=83 tile=882 row_words=10 horizon=470
2026-09-12T12:49:21.176638Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=84
2026-09-12T12:49:21.194328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-12T12:49:21.230914Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=74
2026-09-12T12:49:21.231321Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=74 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:21.231339Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=74 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.232642Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=74 tile=1326 row_words=23 horizon=7129
2026-09-12T12:49:21.242785Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=75
2026-09-12T12:49:21.243138Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=75 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:21.243146Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=75 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.244374Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=75 tile=1342 row_words=22 horizon=7129
2026-09-12T12:49:21.247716Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=73
2026-09-12T12:49:21.248654Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=73 transfers=2728 maximum_identical_destinations=1
2026-09-12T12:49:21.248669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=73 initial_horizon=7117 selected_horizon=7117 endpoint_lower_bound=6912 lower_bound_gap=205 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.251037Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=73 tile=773 row_words=30 horizon=7117
2026-09-12T12:49:21.254402Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=76
2026-09-12T12:49:21.254605Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=77
2026-09-12T12:49:21.254752Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=76 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:21.254764Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=76 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.254921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=77 transfers=1408 maximum_identical_destinations=1
2026-09-12T12:49:21.254929Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=77 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.255904Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=77 tile=1239 row_words=23 horizon=7125
2026-09-12T12:49:21.256009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=76 tile=967 row_words=23 horizon=7125
2026-09-12T12:49:21.407533Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=66
2026-09-12T12:49:21.443993Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=66 transfers=66960 maximum_identical_destinations=1
2026-09-12T12:49:21.444049Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=66 initial_horizon=10992 selected_horizon=10992 endpoint_lower_bound=9600 lower_bound_gap=1392 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.467390Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-12T12:49:21.492244Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=66 tile=672 row_words=276 horizon=10992
2026-09-12T12:49:21.514174Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=55 transfers=73814 maximum_identical_destinations=1
2026-09-12T12:49:21.514226Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=55 initial_horizon=1309 selected_horizon=1309 endpoint_lower_bound=1024 lower_bound_gap=285 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:21.569328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=55 tile=171 row_words=181 horizon=1309
2026-09-12T12:49:21.943458Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=67
2026-09-12T12:49:21.974293Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=67 transfers=73800 maximum_identical_destinations=1
2026-09-12T12:49:21.974316Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=67 initial_horizon=1470 selected_horizon=1470 endpoint_lower_bound=1024 lower_bound_gap=446 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:22.016455Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=67 tile=722 row_words=272 horizon=1470
2026-09-12T12:49:23.972007Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-12T12:49:24.063730Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=24 transfers=221370 maximum_identical_destinations=1
2026-09-12T12:49:24.063763Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=3921 selected_horizon=3921 endpoint_lower_bound=3072 lower_bound_gap=849 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:24.230095Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=24 tile=117 row_words=637 horizon=3921
2026-09-12T12:49:24.235956Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=80
2026-09-12T12:49:24.293781Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=80 transfers=147594 maximum_identical_destinations=1
2026-09-12T12:49:24.293813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=80 initial_horizon=2729 selected_horizon=2729 endpoint_lower_bound=2048 lower_bound_gap=681 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:24.425717Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=80 tile=81 row_words=552 horizon=2729
2026-09-12T12:49:25.832769Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-12T12:49:25.983712Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=18 transfers=37216 maximum_identical_destinations=1
2026-09-12T12:49:25.983754Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=15878 selected_horizon=15878 endpoint_lower_bound=13056 lower_bound_gap=2822 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:26.097999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=18 tile=20 row_words=1167 horizon=15878
2026-09-12T12:49:26.305086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-12T12:49:26.328118Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=72
2026-09-12T12:49:26.428073Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=37136 maximum_identical_destinations=1
2026-09-12T12:49:26.428118Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=7764 selected_horizon=7764 endpoint_lower_bound=3968 lower_bound_gap=3796 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:26.437257Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=72 transfers=37056 maximum_identical_destinations=1
2026-09-12T12:49:26.437295Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=72 initial_horizon=11966 selected_horizon=11966 endpoint_lower_bound=7552 lower_bound_gap=4414 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:26.524263Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=72 tile=280 row_words=1084 horizon=11966
2026-09-12T12:49:26.538030Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=5 row_words=891 horizon=7764
2026-09-12T12:49:27.023555Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-12T12:49:27.186023Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=22216 maximum_identical_destinations=1
2026-09-12T12:49:27.186061Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=8621 selected_horizon=8621 endpoint_lower_bound=4480 lower_bound_gap=4141 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:27.304338Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=87 row_words=1142 horizon=8621
2026-09-12T12:49:27.356169Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-12T12:49:27.465308Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=62 transfers=295194 maximum_identical_destinations=1
2026-09-12T12:49:27.465341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=4819 selected_horizon=4819 endpoint_lower_bound=4096 lower_bound_gap=723 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:27.699007Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=62 tile=85 row_words=830 horizon=4819
2026-09-12T12:49:28.554393Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=87
2026-09-12T12:49:28.609180Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=87 transfers=82504 maximum_identical_destinations=1
2026-09-12T12:49:28.609240Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=87 initial_horizon=9256 selected_horizon=9256 endpoint_lower_bound=5632 lower_bound_gap=3624 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:28.677191Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=87 tile=62 row_words=1502 horizon=9256
2026-09-12T12:49:31.084988Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-12T12:49:31.170445Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=26 transfers=166035 maximum_identical_destinations=1
2026-09-12T12:49:31.170474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=3553 selected_horizon=3553 endpoint_lower_bound=3072 lower_bound_gap=481 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:31.312892Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=26 tile=58 row_words=732 horizon=3553
2026-09-12T12:49:46.008307Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=60 transfers=37192 maximum_identical_destinations=1
2026-09-12T12:49:46.008353Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=60 initial_horizon=16061 selected_horizon=16061 endpoint_lower_bound=15104 lower_bound_gap=957 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:49:46.214101Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=60 tile=271 row_words=1993 horizon=16061
2026-09-12T12:49:46.345808Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-12T12:49:46.349184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=61 transfers=5874 maximum_identical_destinations=1
2026-09-12T12:49:46.349221Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=61 initial_horizon=8746 selected_horizon=8746 endpoint_lower_bound=6912 lower_bound_gap=1834 selected_kind="reused" neighborhood_improvements=0
2026-09-12T12:49:46.355235Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=61 tile=1041 row_words=40 horizon=8746
2026-09-12T12:50:37.548513Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=65 candidates=147712 ordinary_horizon=20894 paired_horizon=109095 use_paired=false
2026-09-12T12:50:38.866519Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=65 transfers=148192 maximum_identical_destinations=1
2026-09-12T12:50:38.866562Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=65 initial_horizon=20894 selected_horizon=20894 endpoint_lower_bound=18432 lower_bound_gap=2462 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T12:50:39.410135Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=65 tile=263 row_words=4230 horizon=20894
2026-09-12T12:50:39.511066Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=79662 success=true
2026-09-12T12:50:41.751648Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=491406
2026-09-12T12:50:42.854070Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=449122
2026-09-12T12:50:43.994493Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=454782
2026-09-12T12:50:45.130010Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=484518
2026-09-12T12:50:46.193503Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=432584
2026-09-12T12:50:47.302323Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=446210
2026-09-12T12:50:48.385981Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=436227
2026-09-12T12:50:49.186038Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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=9674 success=true
2026-09-12T12:50:49.215908Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=19758901 final_exchange=8437174
2026-09-12T12:50:50.965276Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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=310 success=true
2026-09-12T12:50:51.078611Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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=113 success=true
2026-09-12T12:50:51.545996Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: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=413 success=true
2026-09-12T12:50:51.812817Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: validated canonical baseline cycles=19758901
2026-09-12T12:50:52.164300Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=174204 success=true
2026-09-12T12:50:53.901891Z  INFO ipu_codegen.package.build{tile_count=1472 operations=26}: wrote exact tile placement profile path=artifacts/capacity-baseline-20260912/pe-b2-state/memory/placement-451845.html
2026-09-12T12:50:54.512716Z  INFO writing application package tiles=1472
2026-09-12T12:50:54.610661Z  INFO application package written
2026-09-12T12:50:54.611217Z  INFO reading application package
2026-09-12T12:50:54.798006Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-12T12:50:54.798715Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-12T12:50:54.798730Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-12T12:50:54.798735Z  INFO opening IPU device path="/dev/ipu0"
2026-09-12T12:50:54.798762Z  INFO IPU device attached path=/dev/ipu0
2026-09-12T12:50:54.798766Z  INFO initializing IPU device
2026-09-12T12:50:54.806711Z  INFO IPU device initialized
2026-09-12T12:50:54.806729Z  INFO replaying device configuration register_writes=2003
2026-09-12T12:50:54.827704Z  INFO loading application tile_count=1472 final_mark=23
2026-09-12T12:50:55.100635Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-12T12:50:57.780837Z  INFO prepared reference inputs elapsed_ms=2678
2026-09-12T12:50:57.781423Z  INFO configured host reference BLAS threads=4
referencePrecision=fp32
2026-09-12T12:51:32.550902Z  INFO evaluated host reference elapsed_ms=34770
2026-09-12T12:51:32.553676Z  INFO starting host exchange session startup_mark=23
2026-09-12T12:51:32.553728Z  INFO attaching host exchange pages pages=2
2026-09-12T12:51:32.554905Z  INFO host exchange session started
2026-09-12T12:51:32.555676Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=306
2026-09-12T12:51:32.661751Z  INFO invoking streaming host exchange call call="run" command=0 phases=3
referenceMinimumCosineSimilarity=0.993717251
referenceInference=1 numericalTest=PASS
2026-09-12T12:51:32.676292Z  INFO invoking streaming host exchange call call="run" command=0 phases=3
referenceMinimumCosineSimilarity=0.993717251
referenceInference=2 numericalTest=PASS
referenceMaximumAbsoluteError=0.397096 numericalTest=PASS
package=artifacts/capacity-baseline-20260912/pe-b2-state/model.ipuexe tiles=1472 hardwareTest=PASS