2026-09-13T19:13:24.969895Z  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
2026-09-13T19:13:25.054507Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: loaded mid-plan search state path=artifacts/mid-cast-order-20260913/bs1-final/state.json attempts=64
2026-09-13T19:13:25.677508Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: priced reduction epilogue source=Some(OperationId(20)) old_cost=Some(49446) new_cost=Some(54042)
2026-09-13T19:13:25.683586Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: priced reduction epilogue source=Some(OperationId(42)) old_cost=Some(3840) new_cost=Some(4329)
2026-09-13T19:13:25.886470Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: wrote planner memory profile path=artifacts/reduction-epilogue-20260913/fused/memory/baseline-593944-0000.json scope="baseline" peak_step=67 effective_peak_bytes=462584
2026-09-13T19:13:39.183844Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=11039 expansion_and_footprint_ms=13296 estimated_row_bytes=68304 heuristic_row_bytes=154404 geometry_fragments_per_tile=6833 fragment_limit=16384
2026-09-13T19:13:39.317400Z  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=1296
2026-09-13T19:13:40.057275Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=49 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-13T19:13:40.066917Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=40 transfers=1152 maximum_identical_destinations=1
2026-09-13T19:13:40.066992Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=40 initial_horizon=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.069729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=40 tile=79 row_words=46 horizon=5743
2026-09-13T19:13:40.130917Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=3 transfers=3650 maximum_identical_destinations=1
2026-09-13T19:13:40.130971Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=3 initial_horizon=1927 selected_horizon=1927 endpoint_lower_bound=1152 lower_bound_gap=775 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.137529Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=3 tile=21 row_words=25 horizon=1927
2026-09-13T19:13:40.155745Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=36 transfers=1745 maximum_identical_destinations=1
2026-09-13T19:13:40.155799Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=36 initial_horizon=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.157747Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=44 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:13:40.157813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=44 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.162918Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=36 tile=6 row_words=44 horizon=2165
2026-09-13T19:13:40.164792Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=44 tile=866 row_words=10 horizon=471
2026-09-13T19:13:40.164840Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=43 candidates=18 ordinary_horizon=688 paired_horizon=1473 use_paired=false
2026-09-13T19:13:40.186756Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=45 transfers=1224 maximum_identical_destinations=1
2026-09-13T19:13:40.186797Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=45 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.190758Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=45 tile=47 row_words=23 horizon=374
2026-09-13T19:13:40.201296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=51 transfers=9654 maximum_identical_destinations=1
2026-09-13T19:13:40.201350Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=51 initial_horizon=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.212680Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=51 tile=943 row_words=46 horizon=1690
2026-09-13T19:13:40.213432Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=50 candidates=36 ordinary_horizon=232 paired_horizon=1392 use_paired=false
2026-09-13T19:13:40.226521Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=32 candidates=72 ordinary_horizon=162 paired_horizon=268 use_paired=false
2026-09-13T19:13:40.241291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=52 transfers=1288 maximum_identical_destinations=1
2026-09-13T19:13:40.241323Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=52 initial_horizon=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.243953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=52 tile=89 row_words=15 horizon=326
2026-09-13T19:13:40.248634Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=33 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:13:40.248675Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=33 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.252608Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=33 tile=866 row_words=10 horizon=471
2026-09-13T19:13:40.265375Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=34 transfers=1224 maximum_identical_destinations=1
2026-09-13T19:13:40.265410Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=34 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.267592Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=34 tile=47 row_words=23 horizon=374
2026-09-13T19:13:40.280754Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=53 transfers=2151 maximum_identical_destinations=1
2026-09-13T19:13:40.280813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=53 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.284823Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=53 tile=1109 row_words=40 horizon=172
2026-09-13T19:13:40.287512Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=38 transfers=12492 maximum_identical_destinations=1
2026-09-13T19:13:40.287571Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=38 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.307958Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=38 tile=64 row_words=133 horizon=7129
2026-09-13T19:13:40.359591Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=55 transfers=1725 maximum_identical_destinations=1
2026-09-13T19:13:40.359659Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=55 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.366225Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=55 tile=1357 row_words=14 horizon=1112
2026-09-13T19:13:40.381924Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=56 transfers=1368 maximum_identical_destinations=1
2026-09-13T19:13:40.381956Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=56 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.384495Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=56 tile=47 row_words=25 horizon=406
2026-09-13T19:13:40.584520Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=7 transfers=50544 maximum_identical_destinations=1
2026-09-13T19:13:40.584588Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: 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
2026-09-13T19:13:40.584774Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=1 transfers=16520 maximum_identical_destinations=1
2026-09-13T19:13:40.584836Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=1 initial_horizon=3661 selected_horizon=3661 endpoint_lower_bound=3040 lower_bound_gap=621 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.608765Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=1 tile=1061 row_words=90 horizon=3661
2026-09-13T19:13:40.630501Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=27 transfers=1457 maximum_identical_destinations=1
2026-09-13T19:13:40.630558Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=27 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.633893Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=27 tile=13 row_words=21 horizon=2978
2026-09-13T19:13:40.639431Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=7 tile=473 row_words=171 horizon=9085
2026-09-13T19:13:40.667114Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=15 transfers=11656 maximum_identical_destinations=1
2026-09-13T19:13:40.667182Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=15 initial_horizon=1436 selected_horizon=1436 endpoint_lower_bound=576 lower_bound_gap=860 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.680441Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=15 tile=251 row_words=70 horizon=1436
2026-09-13T19:13:40.925497Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=17 transfers=20656 maximum_identical_destinations=1
2026-09-13T19:13:40.925561Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=17 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:40.955081Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=17 tile=535 row_words=106 horizon=4485
2026-09-13T19:13:41.025673Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=14 transfers=48240 maximum_identical_destinations=1
2026-09-13T19:13:41.025753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=14 initial_horizon=2663 selected_horizon=2663 endpoint_lower_bound=2240 lower_bound_gap=423 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.070955Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=14 tile=1120 row_words=123 horizon=2663
2026-09-13T19:13:41.185585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=54 transfers=1076 maximum_identical_destinations=1
2026-09-13T19:13:41.185647Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=54 initial_horizon=394 selected_horizon=394 endpoint_lower_bound=56 lower_bound_gap=338 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.200856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=54 tile=1027 row_words=103 horizon=394
2026-09-13T19:13:41.274498Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=30 transfers=45090 maximum_identical_destinations=1
2026-09-13T19:13:41.274566Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=30 initial_horizon=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.308076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=22 transfers=8694 maximum_identical_destinations=1
2026-09-13T19:13:41.308132Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=22 initial_horizon=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.330082Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=22 tile=1428 row_words=47 horizon=14502
2026-09-13T19:13:41.334855Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=30 tile=1090 row_words=186 horizon=7433
2026-09-13T19:13:41.351485Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=19 transfers=1457 maximum_identical_destinations=1
2026-09-13T19:13:41.351533Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=19 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.355189Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=19 tile=22 row_words=23 horizon=2909
2026-09-13T19:13:41.383796Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=9 transfers=2913 maximum_identical_destinations=1
2026-09-13T19:13:41.383856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=9 initial_horizon=3193 selected_horizon=3193 endpoint_lower_bound=1440 lower_bound_gap=1753 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.390999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=9 tile=248 row_words=21 horizon=3193
2026-09-13T19:13:41.435163Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=20 transfers=1475 maximum_identical_destinations=1
2026-09-13T19:13:41.435244Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=20 initial_horizon=2586 selected_horizon=2586 endpoint_lower_bound=1728 lower_bound_gap=858 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.440753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=20 tile=171 row_words=35 horizon=2586
2026-09-13T19:13:41.448153Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=13 transfers=39744 maximum_identical_destinations=1
2026-09-13T19:13:41.448232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=13 initial_horizon=7115 selected_horizon=7115 endpoint_lower_bound=4096 lower_bound_gap=3019 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.488564Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=13 tile=797 row_words=169 horizon=7115
2026-09-13T19:13:41.674489Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=12 transfers=66320 maximum_identical_destinations=1
2026-09-13T19:13:41.674555Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=12 initial_horizon=7135 selected_horizon=7135 endpoint_lower_bound=3240 lower_bound_gap=3895 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:41.735582Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=12 tile=964 row_words=285 horizon=7135
2026-09-13T19:13:42.271477Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=26 transfers=51925 maximum_identical_destinations=1
2026-09-13T19:13:42.271568Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=26 initial_horizon=855 selected_horizon=855 endpoint_lower_bound=576 lower_bound_gap=279 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:42.345474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=26 tile=440 row_words=128 horizon=855
2026-09-13T19:13:42.924997Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=18 transfers=51948 maximum_identical_destinations=1
2026-09-13T19:13:42.925086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=18 initial_horizon=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:43.005086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=18 tile=68 row_words=172 horizon=859
2026-09-13T19:13:43.804147Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=25 transfers=112284 maximum_identical_destinations=1
2026-09-13T19:13:43.804238Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=25 initial_horizon=14301 selected_horizon=14301 endpoint_lower_bound=9072 lower_bound_gap=5229 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:43.813042Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=31 transfers=103635 maximum_identical_destinations=1
2026-09-13T19:13:43.813103Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=31 initial_horizon=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:43.920956Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=31 tile=235 row_words=253 horizon=1463
2026-09-13T19:13:43.938350Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=25 tile=707 row_words=445 horizon=14301
2026-09-13T19:13:43.993493Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=11 transfers=32720 maximum_identical_destinations=1
2026-09-13T19:13:43.993552Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=11 initial_horizon=6489 selected_horizon=6489 endpoint_lower_bound=5796 lower_bound_gap=693 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:44.076588Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=11 tile=71 row_words=618 horizon=6489
2026-09-13T19:13:44.752115Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=8 transfers=155252 maximum_identical_destinations=1
2026-09-13T19:13:44.752228Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: 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
2026-09-13T19:13:44.919836Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=8 tile=152 row_words=323 horizon=2112
2026-09-13T19:13:48.659445Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=23 transfers=195689 maximum_identical_destinations=1
2026-09-13T19:13:48.659494Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=23 initial_horizon=2840 selected_horizon=2840 endpoint_lower_bound=2152 lower_bound_gap=688 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:48.901972Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=23 tile=553 row_words=637 horizon=2840
2026-09-13T19:13:50.061404Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=21 transfers=35928 maximum_identical_destinations=1
2026-09-13T19:13:50.061452Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=21 initial_horizon=17843 selected_horizon=17843 endpoint_lower_bound=11616 lower_bound_gap=6227 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:50.238645Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=21 tile=113 row_words=1310 horizon=17843
2026-09-13T19:13:50.751296Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=29 candidates=26244 ordinary_horizon=10429 paired_horizon=29600 use_paired=false
2026-09-13T19:13:51.006021Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=29 transfers=27540 maximum_identical_destinations=1
2026-09-13T19:13:51.006068Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=29 initial_horizon=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:51.121708Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=29 tile=465 row_words=878 horizon=10429
2026-09-13T19:13:51.305607Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=10 transfers=174704 maximum_identical_destinations=1
2026-09-13T19:13:51.305652Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=10 initial_horizon=4346 selected_horizon=4346 endpoint_lower_bound=1440 lower_bound_gap=2906 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:51.490647Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=10 tile=548 row_words=804 horizon=4346
2026-09-13T19:13:52.848704Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=16 candidates=26244 ordinary_horizon=8369 paired_horizon=25591 use_paired=false
2026-09-13T19:13:52.965300Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=24 transfers=102240 maximum_identical_destinations=1
2026-09-13T19:13:52.965342Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=24 initial_horizon=16852 selected_horizon=16852 endpoint_lower_bound=10000 lower_bound_gap=6852 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:53.149147Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=16 transfers=27972 maximum_identical_destinations=1
2026-09-13T19:13:53.149191Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=16 initial_horizon=8369 selected_horizon=8369 endpoint_lower_bound=4656 lower_bound_gap=3713 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:53.165537Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=24 tile=854 row_words=1832 horizon=16852
2026-09-13T19:13:53.295025Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=16 tile=87 row_words=1136 horizon=8369
2026-09-13T19:13:54.163116Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=2 transfers=51948 maximum_identical_destinations=1
2026-09-13T19:13:54.163150Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=2 initial_horizon=846 selected_horizon=846 endpoint_lower_bound=576 lower_bound_gap=270 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:54.196809Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=2 tile=356 row_words=177 horizon=846
2026-09-13T19:13:54.362443Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=0 candidates=1786 ordinary_horizon=7077 paired_horizon=6500 use_paired=false
2026-09-13T19:13:54.396592Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=0 transfers=3154 maximum_identical_destinations=1
2026-09-13T19:13:54.396618Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=0 initial_horizon=7077 selected_horizon=7077 endpoint_lower_bound=3456 lower_bound_gap=3621 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:54.419177Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=0 tile=79 row_words=188 horizon=7077
2026-09-13T19:13:57.137341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=37 transfers=116530 maximum_identical_destinations=1
2026-09-13T19:13:57.137389Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=37 initial_horizon=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:13:57.224891Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=37 tile=101 row_words=1130 horizon=5303
2026-09-13T19:14:06.059043Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=6 candidates=26244 ordinary_horizon=18069 paired_horizon=61071 use_paired=false
2026-09-13T19:14:06.476995Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=6 transfers=28836 maximum_identical_destinations=1
2026-09-13T19:14:06.477025Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=6 initial_horizon=18069 selected_horizon=18069 endpoint_lower_bound=9856 lower_bound_gap=8213 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:06.661468Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=6 tile=5 row_words=2323 horizon=18069
2026-09-13T19:14:06.723297Z  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=41 success=true
2026-09-13T19:14:06.725700Z  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=2 success=true
2026-09-13T19:14:06.737056Z  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
2026-09-13T19:14:07.380550Z  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=51652 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-13T19:14:09.579044Z  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=158 success=true
2026-09-13T19:14:09.579093Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=387424 host_code_base=387424 host_code_bytes=9076 generated_code_bytes=11016 exchange_table_bytes=51652 executable_ranges=[(378796, 378800), (378852, 378856), (379604, 379608), (380028, 380032), (383452, 383456), (385468, 385472), (386444, 386448), (396568, 524288)]
2026-09-13T19:14:09.579130Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=387424 profile_bytes=776 exchange_table_bytes=51652 host_code_bytes=9076 host_data_bytes=6272 generated_code_bytes=11016 code_address=396568 available_ranges=[(327680, 360448), (368480, 376832), (475136, 949168)]
2026-09-13T19:14:10.333707Z  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=754 success=true
2026-09-13T19:14:10.382281Z  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
2026-09-13T19:14:10.382896Z  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=1294 maximum_identical_destinations=1
2026-09-13T19:14:10.382910Z  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=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.384018Z  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
2026-09-13T19:14:10.384729Z  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=36 transfers=1745 maximum_identical_destinations=1
2026-09-13T19:14:10.384745Z  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=36 initial_horizon=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.386781Z  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=866 row_words=10 horizon=471
2026-09-13T19:14:10.388578Z  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=36 tile=6 row_words=44 horizon=2165
2026-09-13T19:14:10.392557Z  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
2026-09-13T19:14:10.393171Z  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=1152 maximum_identical_destinations=1
2026-09-13T19:14:10.393183Z  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=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.395071Z  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
2026-09-13T19:14:10.395360Z  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=79 row_words=46 horizon=5743
2026-09-13T19:14:10.395501Z  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=1224 maximum_identical_destinations=1
2026-09-13T19:14:10.395518Z  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=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.396979Z  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
2026-09-13T19:14:10.397490Z  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=47 row_words=23 horizon=374
2026-09-13T19:14:10.397499Z  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=1224 maximum_identical_destinations=1
2026-09-13T19:14:10.397510Z  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=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.399805Z  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=47 row_words=23 horizon=374
2026-09-13T19:14:10.401179Z  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
2026-09-13T19:14:10.401587Z  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
2026-09-13T19:14:10.403497Z  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
2026-09-13T19:14:10.404883Z  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
2026-09-13T19:14:10.410160Z  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=32
2026-09-13T19:14:10.410880Z  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
2026-09-13T19:14:10.412469Z  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
2026-09-13T19:14:10.412667Z  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
2026-09-13T19:14:10.413309Z  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
2026-09-13T19:14:10.420258Z  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
2026-09-13T19:14:10.420619Z  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
2026-09-13T19:14:10.423004Z  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=3650 maximum_identical_destinations=1
2026-09-13T19:14:10.423031Z  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=1927 selected_horizon=1927 endpoint_lower_bound=1152 lower_bound_gap=775 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.423434Z  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=51 transfers=9654 maximum_identical_destinations=1
2026-09-13T19:14:10.423450Z  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=51 initial_horizon=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.430292Z  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=51 tile=943 row_words=46 horizon=1690
2026-09-13T19:14:10.432047Z  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=21 row_words=25 horizon=1927
2026-09-13T19:14:10.437173Z  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
2026-09-13T19:14:10.437922Z  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=1294 maximum_identical_destinations=1
2026-09-13T19:14:10.437943Z  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=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.439521Z  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
2026-09-13T19:14:10.439853Z  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=1288 maximum_identical_destinations=1
2026-09-13T19:14:10.439862Z  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=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.441500Z  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=89 row_words=15 horizon=326
2026-09-13T19:14:10.442322Z  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
2026-09-13T19:14:10.443638Z  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
2026-09-13T19:14:10.444504Z  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=866 row_words=10 horizon=471
2026-09-13T19:14:10.464223Z  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
2026-09-13T19:14:10.464766Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:14:10.464778Z  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=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.465670Z  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
2026-09-13T19:14:10.466239Z  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=2151 maximum_identical_destinations=1
2026-09-13T19:14:10.466250Z  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=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.467762Z  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=22 row_words=23 horizon=2909
2026-09-13T19:14:10.468668Z  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=1109 row_words=40 horizon=172
2026-09-13T19:14:10.501820Z  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
2026-09-13T19:14:10.525172Z  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
2026-09-13T19:14:10.525866Z  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=55 transfers=1725 maximum_identical_destinations=1
2026-09-13T19:14:10.525882Z  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=55 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.529264Z  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
2026-09-13T19:14:10.529556Z  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
2026-09-13T19:14:10.530338Z  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=55 tile=1357 row_words=14 horizon=1112
2026-09-13T19:14:10.531877Z  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=1475 maximum_identical_destinations=1
2026-09-13T19:14:10.531896Z  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=2586 selected_horizon=2586 endpoint_lower_bound=1728 lower_bound_gap=858 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.534313Z  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=12492 maximum_identical_destinations=1
2026-09-13T19:14:10.534329Z  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=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.536253Z  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=171 row_words=35 horizon=2586
2026-09-13T19:14:10.541356Z  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
2026-09-13T19:14:10.541861Z  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=56 transfers=1368 maximum_identical_destinations=1
2026-09-13T19:14:10.541871Z  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=56 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.541921Z  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=64 row_words=133 horizon=7129
2026-09-13T19:14:10.542383Z  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
2026-09-13T19:14:10.544256Z  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=56 tile=47 row_words=25 horizon=406
2026-09-13T19:14:10.547026Z  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
2026-09-13T19:14:10.551262Z  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
2026-09-13T19:14:10.667605Z  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
2026-09-13T19:14:10.678363Z  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=16520 maximum_identical_destinations=1
2026-09-13T19:14:10.678389Z  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=3661 selected_horizon=3661 endpoint_lower_bound=3040 lower_bound_gap=621 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.703344Z  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=1061 row_words=90 horizon=3661
2026-09-13T19:14:10.737632Z  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
2026-09-13T19:14:10.739876Z  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
2026-09-13T19:14:10.749407Z  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=20656 maximum_identical_destinations=1
2026-09-13T19:14:10.749427Z  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=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.760849Z  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
2026-09-13T19:14:10.760870Z  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
2026-09-13T19:14:10.768443Z  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=535 row_words=106 horizon=4485
2026-09-13T19:14:10.802667Z  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
2026-09-13T19:14:10.932351Z  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
2026-09-13T19:14:10.939362Z  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=11656 maximum_identical_destinations=1
2026-09-13T19:14:10.939385Z  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=1436 selected_horizon=1436 endpoint_lower_bound=576 lower_bound_gap=860 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.956256Z  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=251 row_words=70 horizon=1436
2026-09-13T19:14:10.979428Z  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
2026-09-13T19:14:10.990089Z  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=54 transfers=1076 maximum_identical_destinations=1
2026-09-13T19:14:10.990114Z  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=54 initial_horizon=394 selected_horizon=394 endpoint_lower_bound=56 lower_bound_gap=338 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:10.999330Z  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=54 tile=1027 row_words=103 horizon=394
2026-09-13T19:14:11.059852Z  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=14
2026-09-13T19:14:11.089471Z  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=48240 maximum_identical_destinations=1
2026-09-13T19:14:11.089503Z  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=2663 selected_horizon=2663 endpoint_lower_bound=2240 lower_bound_gap=423 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.123939Z  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=1120 row_words=123 horizon=2663
2026-09-13T19:14:11.151716Z  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
2026-09-13T19:14:11.162532Z  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
2026-09-13T19:14:11.175520Z  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=45090 maximum_identical_destinations=1
2026-09-13T19:14:11.175546Z  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=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.178881Z  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=39744 maximum_identical_destinations=1
2026-09-13T19:14:11.178898Z  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=7115 selected_horizon=7115 endpoint_lower_bound=4096 lower_bound_gap=3019 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.204123Z  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=797 row_words=169 horizon=7115
2026-09-13T19:14:11.220798Z  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=1090 row_words=186 horizon=7433
2026-09-13T19:14:11.221736Z  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
2026-09-13T19:14:11.222211Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:14:11.222221Z  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=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.224282Z  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
2026-09-13T19:14:11.224614Z  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=13 row_words=21 horizon=2978
2026-09-13T19:14:11.243006Z  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=3154 maximum_identical_destinations=1
2026-09-13T19:14:11.243029Z  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=7077 selected_horizon=7077 endpoint_lower_bound=3456 lower_bound_gap=3621 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.270757Z  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
2026-09-13T19:14:11.274131Z  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=188 horizon=7077
2026-09-13T19:14:11.293703Z  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
2026-09-13T19:14:11.294616Z  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=2913 maximum_identical_destinations=1
2026-09-13T19:14:11.294626Z  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=3193 selected_horizon=3193 endpoint_lower_bound=1440 lower_bound_gap=1753 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.298144Z  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=248 row_words=21 horizon=3193
2026-09-13T19:14:11.547477Z  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
2026-09-13T19:14:11.576124Z  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=51948 maximum_identical_destinations=1
2026-09-13T19:14:11.576151Z  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=846 selected_horizon=846 endpoint_lower_bound=576 lower_bound_gap=270 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.591663Z  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
2026-09-13T19:14:11.625383Z  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=51948 maximum_identical_destinations=1
2026-09-13T19:14:11.625408Z  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=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:11.629443Z  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=8694 maximum_identical_destinations=1
2026-09-13T19:14:11.629479Z  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=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:11.635297Z  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=356 row_words=177 horizon=846
2026-09-13T19:14:11.641948Z  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=1428 row_words=47 horizon=14502
2026-09-13T19:14:11.667002Z  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=68 row_words=172 horizon=859
2026-09-13T19:14:12.582799Z  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=31
2026-09-13T19:14:12.639285Z  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=103635 maximum_identical_destinations=1
2026-09-13T19:14:12.639317Z  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=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:12.731677Z  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=235 row_words=253 horizon=1463
2026-09-13T19:14:12.962461Z  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=66320 maximum_identical_destinations=1
2026-09-13T19:14:12.962510Z  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=7003 selected_horizon=7003 endpoint_lower_bound=3240 lower_bound_gap=3763 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:13.010915Z  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=320 row_words=281 horizon=7003
2026-09-13T19:14:13.330189Z  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
2026-09-13T19:14:13.392959Z  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=116530 maximum_identical_destinations=1
2026-09-13T19:14:13.392991Z  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=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:13.488922Z  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=101 row_words=1130 horizon=5303
2026-09-13T19:14:13.770930Z  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
2026-09-13T19:14:13.784257Z  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
2026-09-13T19:14:13.853229Z  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=32720 maximum_identical_destinations=1
2026-09-13T19:14:13.853261Z  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=6489 selected_horizon=6489 endpoint_lower_bound=5796 lower_bound_gap=693 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:13.861365Z  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
2026-09-13T19:14:13.861389Z  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
2026-09-13T19:14:13.933773Z  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=71 row_words=618 horizon=6489
2026-09-13T19:14:14.008683Z  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
2026-09-13T19:14:14.666055Z  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
2026-09-13T19:14:14.783017Z  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=195689 maximum_identical_destinations=1
2026-09-13T19:14:14.783057Z  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=2840 selected_horizon=2840 endpoint_lower_bound=2152 lower_bound_gap=688 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:15.004480Z  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=553 row_words=637 horizon=2840
2026-09-13T19:14:15.827734Z  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=25 transfers=112284 maximum_identical_destinations=1
2026-09-13T19:14:15.827782Z  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=25 initial_horizon=13708 selected_horizon=13708 endpoint_lower_bound=9072 lower_bound_gap=4636 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:15.939397Z  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=25 tile=472 row_words=437 horizon=13708
2026-09-13T19:14:16.394894Z  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
2026-09-13T19:14:16.529975Z  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=27540 maximum_identical_destinations=1
2026-09-13T19:14:16.530013Z  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=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:16.660250Z  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=465 row_words=878 horizon=10429
2026-09-13T19:14:17.163744Z  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=10
2026-09-13T19:14:17.205249Z  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
2026-09-13T19:14:17.240419Z  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=174704 maximum_identical_destinations=1
2026-09-13T19:14:17.240446Z  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=4346 selected_horizon=4346 endpoint_lower_bound=1440 lower_bound_gap=2906 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:17.385614Z  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=548 row_words=804 horizon=4346
2026-09-13T19:14:17.395988Z  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=27972 maximum_identical_destinations=1
2026-09-13T19:14:17.396023Z  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=8369 selected_horizon=8369 endpoint_lower_bound=4656 lower_bound_gap=3713 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:17.536228Z  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=87 row_words=1136 horizon=8369
2026-09-13T19:14:22.595816Z  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
2026-09-13T19:14:23.005651Z  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
2026-09-13T19:14:23.005687Z  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=18069 selected_horizon=18069 endpoint_lower_bound=9856 lower_bound_gap=8213 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:23.306853Z  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=5 row_words=2323 horizon=18069
2026-09-13T19:14:24.004579Z  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=35928 maximum_identical_destinations=1
2026-09-13T19:14:24.004627Z  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=17390 selected_horizon=17390 endpoint_lower_bound=11616 lower_bound_gap=5774 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:24.182011Z  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=5 row_words=1313 horizon=17390
2026-09-13T19:14:26.871755Z  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=102240 maximum_identical_destinations=1
2026-09-13T19:14:26.871823Z  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=15651 selected_horizon=15651 endpoint_lower_bound=10000 lower_bound_gap=5651 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:14:27.115833Z  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=118 row_words=1820 horizon=15651
2026-09-13T19:14:27.968149Z  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=26
2026-09-13T19:14:27.996583Z  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=51925 maximum_identical_destinations=1
2026-09-13T19:14:27.996622Z  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=855 selected_horizon=855 endpoint_lower_bound=576 lower_bound_gap=279 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:14:28.037267Z  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=440 row_words=128 horizon=855
2026-09-13T19:14:28.046156Z  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=17712 success=true
2026-09-13T19:14:45.362882Z  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=17316 success=true
2026-09-13T19:14:45.382238Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=10427844 final_exchange=4598550
2026-09-13T19:14:47.639281Z  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=256 success=true
2026-09-13T19:14:47.768802Z  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=129 success=true
2026-09-13T19:14:48.330605Z  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=523 success=true
2026-09-13T19:14:48.659933Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=10427844 resuming=true
2026-09-13T19:14:48.710963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/reduction-epilogue-20260913/fused/state.json attempts=64 bytes=16662793
2026-09-13T19:14:48.752634Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/reduction-epilogue-20260913/fused/state.json attempts=64 bytes=16662793
2026-09-13T19:14:48.986403Z  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=84016 success=true
2026-09-13T19:14:50.854046Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}: wrote exact tile placement profile path=artifacts/reduction-epilogue-20260913/fused/memory/placement-593944.html
2026-09-13T19:14:51.499423Z  INFO writing application package tiles=1472
2026-09-13T19:14:51.857111Z  INFO application package written
2026-09-13T19:14:51.860551Z  INFO reading application package
2026-09-13T19:14:52.799276Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-13T19:14:52.808748Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-13T19:14:52.808767Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-13T19:14:52.808772Z  INFO opening IPU device path="/dev/ipu0"
2026-09-13T19:14:52.808802Z  INFO IPU device attached path=/dev/ipu0
2026-09-13T19:14:52.808806Z  INFO initializing IPU device
2026-09-13T19:14:52.817346Z  INFO IPU device initialized
2026-09-13T19:14:52.817352Z  INFO replaying device configuration register_writes=2003
2026-09-13T19:14:52.846409Z  INFO loading application tile_count=1472 final_mark=23
2026-09-13T19:14:53.072798Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-13T19:14:56.288602Z  INFO prepared reference inputs elapsed_ms=3214
2026-09-13T19:14:56.288945Z  INFO configured host reference BLAS threads=4
referencePrecision=fp32
2026-09-13T19:15:17.287907Z  INFO evaluated host reference elapsed_ms=20999
2026-09-13T19:15:17.290397Z  INFO starting host exchange session startup_mark=23
2026-09-13T19:15:17.290449Z  INFO attaching host exchange pages pages=2
2026-09-13T19:15:17.291228Z  INFO host exchange session started
2026-09-13T19:15:17.292222Z  INFO invoking host exchange call call="initialize" command=0 phases=342
2026-09-13T19:15:17.524486Z  INFO invoking host exchange call call="run" command=0 phases=13
referenceMinimumCosineSimilarity=0.994243808
referenceInference=1 numericalTest=PASS
2026-09-13T19:15:17.533484Z  INFO invoking host exchange call call="run" command=0 phases=13
referenceMinimumCosineSimilarity=0.994243808
referenceInference=2 numericalTest=PASS
referenceMaximumAbsoluteError=0.449998 numericalTest=PASS
package=artifacts/reduction-epilogue-20260913/fused/model.ipuexe tiles=1472 hardwareTest=PASS