2026-09-14T23:31:04.889871Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-14T23:31:04.960976Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrated checkpoint context without redundant bookkeeping
2026-09-14T23:31:04.961016Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: loaded mid-plan search state path=artifacts/full-qk-20260913/real-bs1/state.json attempts=0
2026-09-14T23:31:14.089123Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=4986
2026-09-14T23:31:16.094521Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=8422 expansion_and_footprint_ms=10423 estimated_row_bytes=82768 heuristic_row_bytes=201632 geometry_fragments_per_tile=8583 fragment_limit=16384
2026-09-14T23:31:16.859901Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=706 success=true
2026-09-14T23:31:16.969441Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=34 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:16.969491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=34 initial_horizon=2828 selected_horizon=2828 endpoint_lower_bound=2304 lower_bound_gap=524 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:16.974414Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=34 tile=114 row_words=24 horizon=2828
2026-09-14T23:31:16.980852Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=64 transfers=1725 maximum_identical_destinations=1
2026-09-14T23:31:16.980895Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=64 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:16.981170Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=60 transfers=1400 maximum_identical_destinations=1
2026-09-14T23:31:16.981230Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=60 initial_horizon=4006 selected_horizon=4006 endpoint_lower_bound=3920 lower_bound_gap=86 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:16.984918Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=60 tile=39 row_words=39 horizon=4006
2026-09-14T23:31:16.986129Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=64 tile=1357 row_words=14 horizon=1112
2026-09-14T23:31:16.986867Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=18 ordinary_horizon=688 paired_horizon=1473 use_paired=false
2026-09-14T23:31:17.002294Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=65 transfers=1368 maximum_identical_destinations=1
2026-09-14T23:31:17.002319Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=65 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.004942Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=65 tile=47 row_words=25 horizon=406
2026-09-14T23:31:17.007250Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=52 transfers=1294 maximum_identical_destinations=1
2026-09-14T23:31:17.007287Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.010001Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=35 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:17.010030Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=35 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.011133Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=52 tile=866 row_words=10 horizon=471
2026-09-14T23:31:17.014915Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=35 tile=13 row_words=21 horizon=2978
2026-09-14T23:31:17.025736Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=53 transfers=1224 maximum_identical_destinations=1
2026-09-14T23:31:17.025776Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=53 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.026325Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=61 transfers=2151 maximum_identical_destinations=1
2026-09-14T23:31:17.026367Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=61 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.029616Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=53 tile=47 row_words=23 horizon=374
2026-09-14T23:31:17.032048Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=61 tile=1104 row_words=41 horizon=172
2026-09-14T23:31:17.051423Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=62 transfers=1075 maximum_identical_destinations=1
2026-09-14T23:31:17.051457Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=216 selected_horizon=216 endpoint_lower_bound=4 lower_bound_gap=212 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.055444Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=57 candidates=32 ordinary_horizon=210 paired_horizon=1250 use_paired=false
2026-09-14T23:31:17.056999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=62 tile=46 row_words=9 horizon=216
2026-09-14T23:31:17.060734Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1
2026-09-14T23:31:17.060783Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=2993 selected_horizon=2993 endpoint_lower_bound=2304 lower_bound_gap=689 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.071513Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=17 tile=175 row_words=117 horizon=2993
2026-09-14T23:31:17.092391Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=58 candidates=56 ordinary_horizon=124 paired_horizon=317 use_paired=false
2026-09-14T23:31:17.116481Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=59 transfers=1438 maximum_identical_destinations=1
2026-09-14T23:31:17.116507Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.121101Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=59 tile=875 row_words=10 horizon=1112
2026-09-14T23:31:17.130734Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=42 transfers=1224 maximum_identical_destinations=1
2026-09-14T23:31:17.130750Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.132557Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=42 tile=47 row_words=23 horizon=374
2026-09-14T23:31:17.148236Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=44 transfers=1741 maximum_identical_destinations=1
2026-09-14T23:31:17.148256Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=6408 selected_horizon=6408 endpoint_lower_bound=4644 lower_bound_gap=1764 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.149643Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=44 tile=13 row_words=51 horizon=6408
2026-09-14T23:31:17.171116Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=18 transfers=11648 maximum_identical_destinations=1
2026-09-14T23:31:17.171155Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=2409 selected_horizon=2409 endpoint_lower_bound=2304 lower_bound_gap=105 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:17.178359Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=18 tile=163 row_words=86 horizon=2409
2026-09-14T23:31:18.101522Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=12 transfers=58256 maximum_identical_destinations=1
2026-09-14T23:31:18.101577Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=2646 selected_horizon=2646 endpoint_lower_bound=2304 lower_bound_gap=342 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.145963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=12 tile=79 row_words=488 horizon=2646
2026-09-14T23:31:18.190617Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=63 candidates=972 ordinary_horizon=548 paired_horizon=2983 use_paired=false
2026-09-14T23:31:18.194119Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=45 transfers=65610 maximum_identical_destinations=1
2026-09-14T23:31:18.194158Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=4320 lower_bound_gap=1075 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.209402Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=63 transfers=1024 maximum_identical_destinations=1
2026-09-14T23:31:18.209427Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=63 initial_horizon=548 selected_horizon=548 endpoint_lower_bound=112 lower_bound_gap=436 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.219127Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=63 tile=1017 row_words=100 horizon=548
2026-09-14T23:31:18.278461Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=45 tile=71 row_words=1061 horizon=5395
2026-09-14T23:31:18.346932Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=46 transfers=11536 maximum_identical_destinations=1
2026-09-14T23:31:18.346969Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=2548 selected_horizon=2548 endpoint_lower_bound=2304 lower_bound_gap=244 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.353656Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=46 tile=164 row_words=113 horizon=2548
2026-09-14T23:31:18.371000Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=48 transfers=1056 maximum_identical_destinations=1
2026-09-14T23:31:18.371025Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=1388 selected_horizon=1388 endpoint_lower_bound=1152 lower_bound_gap=236 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.372087Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=48 tile=79 row_words=38 horizon=1388
2026-09-14T23:31:18.390526Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=4 transfers=2193 maximum_identical_destinations=1
2026-09-14T23:31:18.390546Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3113 selected_horizon=3113 endpoint_lower_bound=2304 lower_bound_gap=809 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.393561Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=4 tile=54 row_words=25 horizon=3113
2026-09-14T23:31:18.479153Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1
2026-09-14T23:31:18.479196Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=14 initial_horizon=6922 selected_horizon=6922 endpoint_lower_bound=3240 lower_bound_gap=3682 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.523460Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=14 tile=321 row_words=289 horizon=6922
2026-09-14T23:31:18.730860Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=38 transfers=24132 maximum_identical_destinations=1
2026-09-14T23:31:18.730905Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=8766 selected_horizon=8766 endpoint_lower_bound=7104 lower_bound_gap=1662 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:18.751907Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=38 tile=1051 row_words=117 horizon=8766
2026-09-14T23:31:19.776808Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=8 transfers=155252 maximum_identical_destinations=1
2026-09-14T23:31:19.776865Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=2112 selected_horizon=2112 endpoint_lower_bound=1728 lower_bound_gap=384 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:19.831430Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=15 transfers=38784 maximum_identical_destinations=1
2026-09-14T23:31:19.831497Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=15 initial_horizon=9044 selected_horizon=9044 endpoint_lower_bound=4864 lower_bound_gap=4180 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:19.871942Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=15 tile=630 row_words=218 horizon=9044
2026-09-14T23:31:19.890454Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=8 tile=152 row_words=323 horizon=2112
2026-09-14T23:31:19.905460Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=13 transfers=23616 maximum_identical_destinations=1
2026-09-14T23:31:19.905501Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=13 initial_horizon=3928 selected_horizon=3928 endpoint_lower_bound=3378 lower_bound_gap=550 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:19.920867Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=9 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:19.920903Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5353 selected_horizon=5353 endpoint_lower_bound=3456 lower_bound_gap=1897 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:19.923982Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=9 tile=74 row_words=15 horizon=5353
2026-09-14T23:31:19.936393Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=10 transfers=2181 maximum_identical_destinations=1
2026-09-14T23:31:19.936434Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=7015 selected_horizon=7015 endpoint_lower_bound=6912 lower_bound_gap=103 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:19.938222Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=10 tile=94 row_words=38 horizon=7015
2026-09-14T23:31:19.948430Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=13 tile=13 row_words=481 horizon=3928
2026-09-14T23:31:20.640039Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=11 transfers=58280 maximum_identical_destinations=1
2026-09-14T23:31:20.640093Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=2452 selected_horizon=2452 endpoint_lower_bound=2304 lower_bound_gap=148 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:20.675880Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=19 candidates=8748 ordinary_horizon=10862 paired_horizon=11632 use_paired=false
2026-09-14T23:31:20.684090Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=11 tile=15 row_words=394 horizon=2452
2026-09-14T23:31:20.756080Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=16 transfers=44544 maximum_identical_destinations=1
2026-09-14T23:31:20.756124Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=16 initial_horizon=2786 selected_horizon=2786 endpoint_lower_bound=2496 lower_bound_gap=290 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:20.759004Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=19 transfers=8748 maximum_identical_destinations=1
2026-09-14T23:31:20.759041Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=10862 selected_horizon=10862 endpoint_lower_bound=7008 lower_bound_gap=3854 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:20.793511Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=16 tile=832 row_words=142 horizon=2786
2026-09-14T23:31:20.795131Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=19 tile=507 row_words=391 horizon=10862
2026-09-14T23:31:20.879437Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=20 transfers=1728 maximum_identical_destinations=1
2026-09-14T23:31:20.879476Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=1338 selected_horizon=1338 endpoint_lower_bound=1152 lower_bound_gap=186 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:20.888411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=20 tile=1003 row_words=18 horizon=1338
2026-09-14T23:31:20.972293Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=40 candidates=72 ordinary_horizon=5142 paired_horizon=5319 use_paired=false
2026-09-14T23:31:20.978718Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=40 transfers=1529 maximum_identical_destinations=1
2026-09-14T23:31:20.978742Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=5142 selected_horizon=5142 endpoint_lower_bound=2368 lower_bound_gap=2774 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:20.984615Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=40 tile=263 row_words=22 horizon=5142
2026-09-14T23:31:20.998115Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=7 transfers=50544 maximum_identical_destinations=1
2026-09-14T23:31:20.998146Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.000640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=41 transfers=1294 maximum_identical_destinations=1
2026-09-14T23:31:21.000665Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.005510Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=41 tile=866 row_words=10 horizon=471
2026-09-14T23:31:21.025389Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=7 tile=473 row_words=171 horizon=9085
2026-09-14T23:31:21.044863Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=23 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:21.044884Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.048038Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=23 tile=22 row_words=23 horizon=2909
2026-09-14T23:31:21.060503Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=24 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:21.060523Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=2969 selected_horizon=2969 endpoint_lower_bound=2304 lower_bound_gap=665 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.063621Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=24 tile=13 row_words=19 horizon=2969
2026-09-14T23:31:21.365673Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=21 transfers=20656 maximum_identical_destinations=1
2026-09-14T23:31:21.365723Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.394490Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=21 tile=535 row_words=106 horizon=4485
2026-09-14T23:31:21.575718Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=1 transfers=35568 maximum_identical_destinations=1
2026-09-14T23:31:21.575759Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=4658 selected_horizon=4658 endpoint_lower_bound=4096 lower_bound_gap=562 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.598856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=1 tile=948 row_words=145 horizon=4658
2026-09-14T23:31:21.631271Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=29 transfers=2820 maximum_identical_destinations=1
2026-09-14T23:31:21.631296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=29 initial_horizon=3578 selected_horizon=3578 endpoint_lower_bound=1076 lower_bound_gap=2502 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:21.636326Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=29 tile=1452 row_words=15 horizon=3578
2026-09-14T23:31:22.277998Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=2 transfers=52102 maximum_identical_destinations=1
2026-09-14T23:31:22.278050Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=838 selected_horizon=838 endpoint_lower_bound=576 lower_bound_gap=262 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:22.337013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=2 tile=496 row_words=146 horizon=838
2026-09-14T23:31:22.381633Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=3 transfers=2773 maximum_identical_destinations=1
2026-09-14T23:31:22.381671Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=1088 selected_horizon=1088 endpoint_lower_bound=288 lower_bound_gap=800 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:22.387998Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=3 tile=677 row_words=17 horizon=1088
2026-09-14T23:31:22.635624Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=27 transfers=22536 maximum_identical_destinations=1
2026-09-14T23:31:22.635669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=27 initial_horizon=9429 selected_horizon=9429 endpoint_lower_bound=7104 lower_bound_gap=2325 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:22.658356Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=27 tile=854 row_words=108 horizon=9429
2026-09-14T23:31:23.283029Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=22 transfers=51948 maximum_identical_destinations=1
2026-09-14T23:31:23.283086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:23.349612Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=22 tile=68 row_words=172 horizon=859
2026-09-14T23:31:23.375669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=39 transfers=104344 maximum_identical_destinations=1
2026-09-14T23:31:23.375722Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=1541 selected_horizon=1541 endpoint_lower_bound=1152 lower_bound_gap=389 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:23.468401Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=31 transfers=3096 maximum_identical_destinations=1
2026-09-14T23:31:23.468435Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=31 initial_horizon=5081 selected_horizon=5081 endpoint_lower_bound=2560 lower_bound_gap=2521 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:23.483474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=31 tile=447 row_words=34 horizon=5081
2026-09-14T23:31:23.505180Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=39 tile=379 row_words=344 horizon=1541
2026-09-14T23:31:24.576831Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=33 transfers=52174 maximum_identical_destinations=1
2026-09-14T23:31:24.576895Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=33 initial_horizon=866 selected_horizon=866 endpoint_lower_bound=576 lower_bound_gap=290 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:24.620980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=33 tile=519 row_words=114 horizon=866
2026-09-14T23:31:26.120502Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=0 transfers=28773 maximum_identical_destinations=1
2026-09-14T23:31:26.120563Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=7862 selected_horizon=7862 endpoint_lower_bound=6624 lower_bound_gap=1238 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:26.277070Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=0 tile=79 row_words=1289 horizon=7862
2026-09-14T23:31:27.110916Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=32 transfers=155880 maximum_identical_destinations=1
2026-09-14T23:31:27.110971Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=32 initial_horizon=14092 selected_horizon=14092 endpoint_lower_bound=8640 lower_bound_gap=5452 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:27.272498Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=32 tile=907 row_words=454 horizon=14092
2026-09-14T23:31:28.625774Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=30 transfers=21112 maximum_identical_destinations=1
2026-09-14T23:31:28.625825Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=30 initial_horizon=20024 selected_horizon=20024 endpoint_lower_bound=19520 lower_bound_gap=504 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:28.693526Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=30 tile=481 row_words=1010 horizon=20024
2026-09-14T23:31:29.470338Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=37 candidates=26244 ordinary_horizon=10184 paired_horizon=37328 use_paired=false
2026-09-14T23:31:29.802301Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=37 transfers=28836 maximum_identical_destinations=1
2026-09-14T23:31:29.802346Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=10184 selected_horizon=10184 endpoint_lower_bound=5808 lower_bound_gap=4376 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:29.965849Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=37 tile=634 row_words=1171 horizon=10184
2026-09-14T23:31:30.067184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=28 transfers=195540 maximum_identical_destinations=1
2026-09-14T23:31:30.067254Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=28 initial_horizon=2648 selected_horizon=2648 endpoint_lower_bound=2152 lower_bound_gap=496 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:30.330713Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=28 tile=361 row_words=603 horizon=2648
2026-09-14T23:31:32.626307Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=26 transfers=35928 maximum_identical_destinations=1
2026-09-14T23:31:32.626363Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=14211 selected_horizon=14211 endpoint_lower_bound=11616 lower_bound_gap=2595 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:32.940348Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=26 tile=464 row_words=2117 horizon=14211
2026-09-14T23:31:44.462491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=26244 ordinary_horizon=14406 paired_horizon=60506 use_paired=false
2026-09-14T23:31:45.205178Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=6 transfers=28836 maximum_identical_destinations=1
2026-09-14T23:31:45.205255Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=14406 selected_horizon=14406 endpoint_lower_bound=9856 lower_bound_gap=4550 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:45.520291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=6 tile=557 row_words=2331 horizon=14406
2026-09-14T23:31:45.557246Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=28696 success=true
2026-09-14T23:31:45.639147Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=81 success=true
2026-09-14T23:31:45.643165Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=3 success=true
2026-09-14T23:31:45.652095Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-14T23:31:46.640964Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=55200 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-14T23:31:49.188401Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=237 success=true
2026-09-14T23:31:49.188491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=380968 host_code_base=380968 host_code_bytes=8892 generated_code_bytes=12716 exchange_table_bytes=55200 executable_ranges=[(377716, 377720), (379988, 379992), (389928, 524288)]
2026-09-14T23:31:49.188516Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=380968 profile_bytes=0 exchange_table_bytes=55200 host_code_bytes=8892 host_data_bytes=6148 generated_code_bytes=12716 code_address=389928 available_ranges=[(327680, 360448), (368356, 376832), (475136, 949168)]
2026-09-14T23:31:50.366029Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=705 success=true
2026-09-14T23:31:50.420239Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34
2026-09-14T23:31:50.420807Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=34 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:50.420816Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=34 initial_horizon=2828 selected_horizon=2828 endpoint_lower_bound=2304 lower_bound_gap=524 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.424608Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=34 tile=114 row_words=24 horizon=2828
2026-09-14T23:31:50.434082Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-14T23:31:50.435131Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=2193 maximum_identical_destinations=1
2026-09-14T23:31:50.435162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3113 selected_horizon=3113 endpoint_lower_bound=2304 lower_bound_gap=809 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.439578Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-14T23:31:50.440164Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=54 row_words=25 horizon=3113
2026-09-14T23:31:50.440171Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=35 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:50.440184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=35 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.443883Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=35 tile=13 row_words=21 horizon=2978
2026-09-14T23:31:50.454457Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-14T23:31:50.490781Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-14T23:31:50.502759Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-14T23:31:50.506485Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-14T23:31:50.508266Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1
2026-09-14T23:31:50.508294Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=2993 selected_horizon=2993 endpoint_lower_bound=2304 lower_bound_gap=689 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.515466Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=17 tile=175 row_words=117 horizon=2993
2026-09-14T23:31:50.607109Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-14T23:31:50.612676Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=18 transfers=11648 maximum_identical_destinations=1
2026-09-14T23:31:50.612704Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=2409 selected_horizon=2409 endpoint_lower_bound=2304 lower_bound_gap=105 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.620722Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=18 tile=163 row_words=86 horizon=2409
2026-09-14T23:31:50.860995Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-14T23:31:50.872559Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=21 transfers=20656 maximum_identical_destinations=1
2026-09-14T23:31:50.872585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:50.892891Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=21 tile=535 row_words=106 horizon=4485
2026-09-14T23:31:51.518514Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-14T23:31:51.540264Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=52102 maximum_identical_destinations=1
2026-09-14T23:31:51.540293Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=838 selected_horizon=838 endpoint_lower_bound=576 lower_bound_gap=262 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:51.574297Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=496 row_words=146 horizon=838
2026-09-14T23:31:51.599937Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-14T23:31:51.600828Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=2773 maximum_identical_destinations=1
2026-09-14T23:31:51.600852Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=1088 selected_horizon=1088 endpoint_lower_bound=288 lower_bound_gap=800 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:51.605599Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=677 row_words=17 horizon=1088
2026-09-14T23:31:51.616078Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-14T23:31:51.616524Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=23 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:51.616535Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:51.620065Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=23 tile=22 row_words=23 horizon=2909
2026-09-14T23:31:51.630062Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-14T23:31:51.630533Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=24 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:51.630543Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=2969 selected_horizon=2969 endpoint_lower_bound=2304 lower_bound_gap=665 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:51.633450Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=24 tile=13 row_words=19 horizon=2969
2026-09-14T23:31:51.942057Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-14T23:31:51.979269Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=22 transfers=51948 maximum_identical_destinations=1
2026-09-14T23:31:51.979315Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:52.018099Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=22 tile=68 row_words=172 horizon=859
2026-09-14T23:31:52.047319Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-14T23:31:52.048411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=29 transfers=2820 maximum_identical_destinations=1
2026-09-14T23:31:52.048430Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=29 initial_horizon=3578 selected_horizon=3578 endpoint_lower_bound=1076 lower_bound_gap=2502 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:52.053926Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=29 tile=1452 row_words=15 horizon=3578
2026-09-14T23:31:52.402442Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-14T23:31:52.428361Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=12 transfers=58256 maximum_identical_destinations=1
2026-09-14T23:31:52.428391Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=2646 selected_horizon=2646 endpoint_lower_bound=2304 lower_bound_gap=342 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:52.473296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=12 tile=79 row_words=488 horizon=2646
2026-09-14T23:31:52.619237Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-14T23:31:52.676094Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=155252 maximum_identical_destinations=1
2026-09-14T23:31:52.676127Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=2112 selected_horizon=2112 endpoint_lower_bound=1728 lower_bound_gap=384 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:52.792491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=152 row_words=323 horizon=2112
2026-09-14T23:31:52.826033Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-14T23:31:52.826550Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=1457 maximum_identical_destinations=1
2026-09-14T23:31:52.826575Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5353 selected_horizon=5353 endpoint_lower_bound=3456 lower_bound_gap=1897 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:52.829755Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=74 row_words=15 horizon=5353
2026-09-14T23:31:52.851658Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=2181 maximum_identical_destinations=1
2026-09-14T23:31:52.851682Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=7015 selected_horizon=7015 endpoint_lower_bound=6912 lower_bound_gap=103 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:52.853444Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=94 row_words=38 horizon=7015
2026-09-14T23:31:52.966050Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-14T23:31:53.015372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=19 transfers=8748 maximum_identical_destinations=1
2026-09-14T23:31:53.015407Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=10862 selected_horizon=10862 endpoint_lower_bound=7008 lower_bound_gap=3854 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.047331Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=19 tile=507 row_words=391 horizon=10862
2026-09-14T23:31:53.106628Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-14T23:31:53.108872Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=20 transfers=1728 maximum_identical_destinations=1
2026-09-14T23:31:53.108895Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=1338 selected_horizon=1338 endpoint_lower_bound=1152 lower_bound_gap=186 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.117645Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=20 tile=1003 row_words=18 horizon=1338
2026-09-14T23:31:53.490691Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-14T23:31:53.512643Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=58280 maximum_identical_destinations=1
2026-09-14T23:31:53.512669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=2452 selected_horizon=2452 endpoint_lower_bound=2304 lower_bound_gap=148 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.564252Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=15 row_words=394 horizon=2452
2026-09-14T23:31:53.577317Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-14T23:31:53.590932Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-14T23:31:53.591331Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=52 transfers=1294 maximum_identical_destinations=1
2026-09-14T23:31:53.591345Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.594949Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=52 tile=866 row_words=10 horizon=471
2026-09-14T23:31:53.603065Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-14T23:31:53.603437Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=53 transfers=1224 maximum_identical_destinations=1
2026-09-14T23:31:53.603449Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=53 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.605651Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=53 tile=47 row_words=23 horizon=374
2026-09-14T23:31:53.609469Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-14T23:31:53.613891Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-14T23:31:53.615616Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-14T23:31:53.621866Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-14T23:31:53.632800Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-14T23:31:53.646400Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-14T23:31:53.646860Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=59 transfers=1438 maximum_identical_destinations=1
2026-09-14T23:31:53.646870Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.650931Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=59 tile=875 row_words=10 horizon=1112
2026-09-14T23:31:53.659938Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-14T23:31:53.660364Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=60 transfers=1400 maximum_identical_destinations=1
2026-09-14T23:31:53.660376Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=60 initial_horizon=4006 selected_horizon=4006 endpoint_lower_bound=3920 lower_bound_gap=86 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.662855Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=60 tile=39 row_words=39 horizon=4006
2026-09-14T23:31:53.676931Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61
2026-09-14T23:31:53.677583Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=61 transfers=2151 maximum_identical_destinations=1
2026-09-14T23:31:53.677605Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=61 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.680166Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=61 tile=1104 row_words=41 horizon=172
2026-09-14T23:31:53.687466Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-14T23:31:53.687755Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=62 transfers=1075 maximum_identical_destinations=1
2026-09-14T23:31:53.687761Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=216 selected_horizon=216 endpoint_lower_bound=4 lower_bound_gap=212 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.690436Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=62 tile=46 row_words=9 horizon=216
2026-09-14T23:31:53.696087Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-14T23:31:53.716031Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=35568 maximum_identical_destinations=1
2026-09-14T23:31:53.716059Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=4658 selected_horizon=4658 endpoint_lower_bound=4096 lower_bound_gap=562 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.746612Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=948 row_words=145 horizon=4658
2026-09-14T23:31:53.763603Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-14T23:31:53.764088Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=42 transfers=1224 maximum_identical_destinations=1
2026-09-14T23:31:53.764098Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.766711Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=42 tile=47 row_words=23 horizon=374
2026-09-14T23:31:53.772670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-14T23:31:53.786979Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-14T23:31:53.787671Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=44 transfers=1741 maximum_identical_destinations=1
2026-09-14T23:31:53.787685Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=6408 selected_horizon=6408 endpoint_lower_bound=4644 lower_bound_gap=1764 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:53.789613Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=44 tile=13 row_words=51 horizon=6408
2026-09-14T23:31:54.325231Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-14T23:31:54.336698Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=63 transfers=1024 maximum_identical_destinations=1
2026-09-14T23:31:54.336724Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=63 initial_horizon=548 selected_horizon=548 endpoint_lower_bound=112 lower_bound_gap=436 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:54.346868Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=63 tile=1017 row_words=100 horizon=548
2026-09-14T23:31:54.361865Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=64
2026-09-14T23:31:54.362404Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=64 transfers=1725 maximum_identical_destinations=1
2026-09-14T23:31:54.362418Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=64 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:54.366753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=64 tile=1357 row_words=14 horizon=1112
2026-09-14T23:31:54.375941Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=65
2026-09-14T23:31:54.376389Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=65 transfers=1368 maximum_identical_destinations=1
2026-09-14T23:31:54.376402Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=65 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:54.378843Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=65 tile=47 row_words=25 horizon=406
2026-09-14T23:31:54.382748Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=66
2026-09-14T23:31:54.386355Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=67
2026-09-14T23:31:54.390608Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=68
2026-09-14T23:31:54.461367Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-14T23:31:54.526929Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=13 transfers=23616 maximum_identical_destinations=1
2026-09-14T23:31:54.526961Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=13 initial_horizon=3928 selected_horizon=3928 endpoint_lower_bound=3378 lower_bound_gap=550 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:54.588123Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=13 tile=13 row_words=481 horizon=3928
2026-09-14T23:31:54.734561Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-14T23:31:54.747277Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=38 transfers=24132 maximum_identical_destinations=1
2026-09-14T23:31:54.747300Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=8766 selected_horizon=8766 endpoint_lower_bound=7104 lower_bound_gap=1662 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:54.769280Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=38 tile=1051 row_words=117 horizon=8766
2026-09-14T23:31:55.064690Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-14T23:31:55.098196Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=45 transfers=65610 maximum_identical_destinations=1
2026-09-14T23:31:55.098256Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=4320 lower_bound_gap=1075 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.223295Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=45 tile=71 row_words=1061 horizon=5395
2026-09-14T23:31:55.403670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-14T23:31:55.409175Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=46 transfers=11536 maximum_identical_destinations=1
2026-09-14T23:31:55.409224Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=2548 selected_horizon=2548 endpoint_lower_bound=2304 lower_bound_gap=244 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.418327Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=46 tile=164 row_words=113 horizon=2548
2026-09-14T23:31:55.426728Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-14T23:31:55.438131Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-14T23:31:55.438604Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=48 transfers=1056 maximum_identical_destinations=1
2026-09-14T23:31:55.438616Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=1388 selected_horizon=1388 endpoint_lower_bound=1152 lower_bound_gap=236 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.440048Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=48 tile=79 row_words=38 horizon=1388
2026-09-14T23:31:55.442495Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-14T23:31:55.443778Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50
2026-09-14T23:31:55.771175Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-14T23:31:55.790778Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=50544 maximum_identical_destinations=1
2026-09-14T23:31:55.790814Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.823760Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=473 row_words=171 horizon=9085
2026-09-14T23:31:55.866877Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-14T23:31:55.868298Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=40 transfers=1529 maximum_identical_destinations=1
2026-09-14T23:31:55.868314Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=5142 selected_horizon=5142 endpoint_lower_bound=2368 lower_bound_gap=2774 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.873762Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=40 tile=263 row_words=22 horizon=5142
2026-09-14T23:31:55.887942Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-14T23:31:55.888378Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=41 transfers=1294 maximum_identical_destinations=1
2026-09-14T23:31:55.888389Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:55.891762Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=41 tile=866 row_words=10 horizon=471
2026-09-14T23:31:56.034786Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-14T23:31:56.044438Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=27 transfers=22536 maximum_identical_destinations=1
2026-09-14T23:31:56.044536Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=27 initial_horizon=9429 selected_horizon=9429 endpoint_lower_bound=7104 lower_bound_gap=2325 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:56.066019Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=27 tile=854 row_words=108 horizon=9429
2026-09-14T23:31:56.239427Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-14T23:31:56.313017Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=30 transfers=21112 maximum_identical_destinations=1
2026-09-14T23:31:56.313051Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=30 initial_horizon=20024 selected_horizon=20024 endpoint_lower_bound=19520 lower_bound_gap=504 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:56.376170Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=30 tile=481 row_words=1010 horizon=20024
2026-09-14T23:31:56.511011Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=31 transfers=3096 maximum_identical_destinations=1
2026-09-14T23:31:56.511049Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=31 initial_horizon=4635 selected_horizon=4635 endpoint_lower_bound=2560 lower_bound_gap=2075 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:56.522727Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=31 tile=445 row_words=35 horizon=4635
2026-09-14T23:31:56.904917Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-14T23:31:56.956664Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=104344 maximum_identical_destinations=1
2026-09-14T23:31:56.956702Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=1541 selected_horizon=1541 endpoint_lower_bound=1152 lower_bound_gap=389 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:57.042567Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=379 row_words=344 horizon=1541
2026-09-14T23:31:57.242234Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1
2026-09-14T23:31:57.242295Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=14 initial_horizon=7105 selected_horizon=7105 endpoint_lower_bound=3240 lower_bound_gap=3865 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:31:57.299032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=14 tile=320 row_words=295 horizon=7105
2026-09-14T23:31:57.906958Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-14T23:31:57.937899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=15 transfers=38784 maximum_identical_destinations=1
2026-09-14T23:31:57.937931Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=15 initial_horizon=9044 selected_horizon=9044 endpoint_lower_bound=4864 lower_bound_gap=4180 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:57.967767Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=15 tile=630 row_words=218 horizon=9044
2026-09-14T23:31:58.115642Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-14T23:31:58.152970Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=16 transfers=44544 maximum_identical_destinations=1
2026-09-14T23:31:58.153001Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=16 initial_horizon=2786 selected_horizon=2786 endpoint_lower_bound=2496 lower_bound_gap=290 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:58.191611Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=16 tile=832 row_words=142 horizon=2786
2026-09-14T23:31:58.860354Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-14T23:31:58.896335Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=33 transfers=52174 maximum_identical_destinations=1
2026-09-14T23:31:58.896383Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=33 initial_horizon=866 selected_horizon=866 endpoint_lower_bound=576 lower_bound_gap=290 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:58.944263Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=33 tile=519 row_words=114 horizon=866
2026-09-14T23:31:59.257615Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-14T23:31:59.456897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=28773 maximum_identical_destinations=1
2026-09-14T23:31:59.456953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=7862 selected_horizon=7862 endpoint_lower_bound=6624 lower_bound_gap=1238 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:31:59.569316Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=79 row_words=1289 horizon=7862
2026-09-14T23:32:00.234717Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-14T23:32:00.328505Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=28 transfers=195540 maximum_identical_destinations=1
2026-09-14T23:32:00.328542Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=28 initial_horizon=2648 selected_horizon=2648 endpoint_lower_bound=2152 lower_bound_gap=496 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:32:00.449465Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-14T23:32:00.492765Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=28 tile=361 row_words=603 horizon=2648
2026-09-14T23:32:00.631225Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=37 transfers=28836 maximum_identical_destinations=1
2026-09-14T23:32:00.631269Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=10184 selected_horizon=10184 endpoint_lower_bound=5808 lower_bound_gap=4376 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:32:00.795739Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=37 tile=634 row_words=1171 horizon=10184
2026-09-14T23:32:01.301064Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=32 transfers=155880 maximum_identical_destinations=1
2026-09-14T23:32:01.301111Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=32 initial_horizon=14328 selected_horizon=14328 endpoint_lower_bound=8640 lower_bound_gap=5688 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:32:01.405996Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=32 tile=907 row_words=458 horizon=14328
2026-09-14T23:32:06.055728Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-14T23:32:06.510243Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=28836 maximum_identical_destinations=1
2026-09-14T23:32:06.510299Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=14406 selected_horizon=14406 endpoint_lower_bound=9856 lower_bound_gap=4550 selected_kind="reused" neighborhood_improvements=0
2026-09-14T23:32:06.835444Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=557 row_words=2331 horizon=14406
2026-09-14T23:32:14.884639Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=26 transfers=35928 maximum_identical_destinations=1
2026-09-14T23:32:14.884702Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=13789 selected_horizon=13789 endpoint_lower_bound=11616 lower_bound_gap=2173 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-14T23:32:15.192678Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=26 tile=648 row_words=2108 horizon=13789
2026-09-14T23:32:15.248442Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=24882 success=true
2026-09-14T23:32:33.516349Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=18267 success=true
2026-09-14T23:32:33.541430Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=13301152 final_exchange=5422804
2026-09-14T23:32:35.601431Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=442 success=true
2026-09-14T23:32:35.715079Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=113 success=true
2026-09-14T23:32:36.163328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=391 success=true
2026-09-14T23:32:36.224315Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=13301152 resuming=true
2026-09-14T23:32:36.284820Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260914/target-abi/real-bs1/state.json attempts=0 bytes=15044853
2026-09-14T23:32:36.323525Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260914/target-abi/real-bs1/state.json attempts=0 bytes=15044853
2026-09-14T23:32:36.524296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=91634 success=true
2026-09-14T23:32:37.279129Z  INFO writing application package tiles=1472
2026-09-14T23:32:37.587955Z  INFO application package written
2026-09-14T23:32:37.588946Z  INFO reading application package
2026-09-14T23:32:37.872833Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-14T23:32:37.882905Z  INFO waiting for hardware ownership path=/tmp/ipu-stack-device.lock
2026-09-14T23:32:37.882932Z  INFO acquired hardware ownership path=/tmp/ipu-stack-device.lock
2026-09-14T23:32:37.882938Z  INFO opening IPU device path="/dev/ipu0"
2026-09-14T23:32:37.882982Z  INFO IPU device attached path=/dev/ipu0
2026-09-14T23:32:37.882985Z  INFO initializing IPU device
2026-09-14T23:32:37.891069Z  INFO IPU device initialized
2026-09-14T23:32:37.891131Z  INFO replaying device configuration register_writes=2003
2026-09-14T23:32:37.918613Z  INFO loading application tile_count=1472 final_mark=23
2026-09-14T23:32:38.194313Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-14T23:32:45.008812Z  INFO starting host exchange session startup_mark=23
2026-09-14T23:32:45.008860Z  INFO attaching host exchange pages pages=2
2026-09-14T23:32:45.009604Z  INFO host exchange session started
2026-09-14T23:32:45.011302Z  INFO invoking host exchange call call="initialize" command=0 phases=342
2026-09-14T23:32:45.175376Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=authors
referenceMinimumCosineSimilarity=0.994567066
referenceMaximumAbsoluteError=0.181597 numericalTest=PASS
2026-09-14T23:32:45.194034Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=siglip
referenceMinimumCosineSimilarity=0.996543687
referenceMaximumAbsoluteError=0.166239 numericalTest=PASS
2026-09-14T23:32:45.212922Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=caffeine
referenceMinimumCosineSimilarity=0.997382663
referenceMaximumAbsoluteError=0.130626 numericalTest=PASS
2026-09-14T23:32:45.231781Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=robosign
referenceMinimumCosineSimilarity=0.995361503
referenceMaximumAbsoluteError=0.310924 numericalTest=PASS
2026-09-14T23:32:45.252327Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=fried_fish
referenceMinimumCosineSimilarity=0.996956592
referenceMaximumAbsoluteError=0.157906 numericalTest=PASS
2026-09-14T23:32:45.271593Z  INFO invoking host exchange call call="run" command=0 phases=7
referenceFixtureCase=cow_beach2
referenceMinimumCosineSimilarity=0.997177897
referenceMaximumAbsoluteError=0.165668 numericalTest=PASS
package=artifacts/structure-refactor-20260914/target-abi/real-bs1/model.ipuexe tiles=1472 hardwareTest=PASS