2026-09-13T19:45:26.777214Z  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
2026-09-13T19:45:26.874320Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: loaded mid-plan search state path=artifacts/full-qk-20260913/bs1-k-seed.json attempts=0
2026-09-13T19:45:27.705643Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: wrote planner memory profile path=artifacts/full-qk-20260913/bs1-k/memory/baseline-597788-0000.json scope="baseline" peak_step=70 effective_peak_bytes=462584
2026-09-13T19:45:38.799130Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=9570 expansion_and_footprint_ms=11093 estimated_row_bytes=70480 heuristic_row_bytes=157324 geometry_fragments_per_tile=7073 fragment_limit=16384
2026-09-13T19:45:38.891497Z  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
2026-09-13T19:45:39.429849Z  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=1475 maximum_identical_destinations=1
2026-09-13T19:45:39.429883Z  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=2586 selected_horizon=2586 endpoint_lower_bound=1728 lower_bound_gap=858 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:39.432977Z  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=171 row_words=35 horizon=2586
2026-09-13T19:45:39.687490Z  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
2026-09-13T19:45:39.687529Z  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
2026-09-13T19:45:39.715146Z  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
2026-09-13T19:45:40.048538Z  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=8784 maximum_identical_destinations=1
2026-09-13T19:45:40.048585Z  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=2257 selected_horizon=2257 endpoint_lower_bound=1920 lower_bound_gap=337 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.050690Z  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=39744 maximum_identical_destinations=1
2026-09-13T19:45:40.050723Z  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=7115 selected_horizon=7115 endpoint_lower_bound=4096 lower_bound_gap=3019 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.069815Z  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=13 row_words=227 horizon=2257
2026-09-13T19:45:40.074447Z  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=907 row_words=172 horizon=7115
2026-09-13T19:45:40.147653Z  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=58256 maximum_identical_destinations=1
2026-09-13T19:45:40.147687Z  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=2434 selected_horizon=2434 endpoint_lower_bound=2304 lower_bound_gap=130 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.168232Z  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
2026-09-13T19:45:40.187578Z  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=79 row_words=489 horizon=2434
2026-09-13T19:45:40.190028Z  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
2026-09-13T19:45:40.190046Z  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
2026-09-13T19:45:40.203683Z  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
2026-09-13T19:45:40.214293Z  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
2026-09-13T19:45:40.214312Z  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
2026-09-13T19:45:40.217793Z  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=712 row_words=20 horizon=3193
2026-09-13T19:45:40.431181Z  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
2026-09-13T19:45:40.431220Z  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
2026-09-13T19:45:40.445855Z  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
2026-09-13T19:45:40.536158Z  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=18000 maximum_identical_destinations=1
2026-09-13T19:45:40.536223Z  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=3359 selected_horizon=3359 endpoint_lower_bound=2916 lower_bound_gap=443 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.570650Z  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=166 row_words=316 horizon=3359
2026-09-13T19:45:40.580864Z  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=48240 maximum_identical_destinations=1
2026-09-13T19:45:40.580895Z  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=2663 selected_horizon=2663 endpoint_lower_bound=2240 lower_bound_gap=423 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.606615Z  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=1120 row_words=123 horizon=2663
2026-09-13T19:45:40.788560Z  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=11656 maximum_identical_destinations=1
2026-09-13T19:45:40.788587Z  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=1436 selected_horizon=1436 endpoint_lower_bound=576 lower_bound_gap=860 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:40.798100Z  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=251 row_words=70 horizon=1436
2026-09-13T19:45:41.300456Z  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=66320 maximum_identical_destinations=1
2026-09-13T19:45:41.300500Z  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=6922 selected_horizon=6922 endpoint_lower_bound=3240 lower_bound_gap=3682 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:41.344952Z  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=321 row_words=289 horizon=6922
2026-09-13T19:45:41.395087Z  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
2026-09-13T19:45:41.395117Z  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
2026-09-13T19:45:41.401071Z  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
2026-09-13T19:45:41.494257Z  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
2026-09-13T19:45:41.494286Z  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
2026-09-13T19:45:41.534511Z  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
2026-09-13T19:45:41.578094Z  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=81584 maximum_identical_destinations=1
2026-09-13T19:45:41.578125Z  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=6909 selected_horizon=6909 endpoint_lower_bound=4896 lower_bound_gap=2013 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:41.614812Z  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=8694 maximum_identical_destinations=1
2026-09-13T19:45:41.614833Z  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=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:41.624340Z  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=1428 row_words=47 horizon=14502
2026-09-13T19:45:41.627266Z  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=20 row_words=507 horizon=6909
2026-09-13T19:45:42.155438Z  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
2026-09-13T19:45:42.155475Z  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
2026-09-13T19:45:42.257242Z  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
2026-09-13T19:45:42.289920Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=45 candidates=18 ordinary_horizon=688 paired_horizon=1473 use_paired=false
2026-09-13T19:45:42.304172Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=46 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:45:42.304193Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=46 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.307332Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=46 tile=866 row_words=10 horizon=471
2026-09-13T19:45:42.315940Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=47 transfers=1224 maximum_identical_destinations=1
2026-09-13T19:45:42.315961Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=47 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.317716Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=47 tile=47 row_words=23 horizon=374
2026-09-13T19:45:42.330013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=51 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false
2026-09-13T19:45:42.369318Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=52 candidates=36 ordinary_horizon=232 paired_horizon=1392 use_paired=false
2026-09-13T19:45:42.389688Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=28 transfers=51925 maximum_identical_destinations=1
2026-09-13T19:45:42.389717Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=28 initial_horizon=855 selected_horizon=855 endpoint_lower_bound=576 lower_bound_gap=279 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.425232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=28 tile=440 row_words=128 horizon=855
2026-09-13T19:45:42.445604Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:45:42.445622Z  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=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.446505Z  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=9654 maximum_identical_destinations=1
2026-09-13T19:45:42.446525Z  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=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.448256Z  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=13 row_words=21 horizon=2978
2026-09-13T19:45:42.455993Z  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=943 row_words=46 horizon=1690
2026-09-13T19:45:42.462634Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=57 transfers=1725 maximum_identical_destinations=1
2026-09-13T19:45:42.462649Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=57 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.466486Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=57 tile=1357 row_words=14 horizon=1112
2026-09-13T19:45:42.466672Z  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=1288 maximum_identical_destinations=1
2026-09-13T19:45:42.466685Z  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=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.468904Z  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=89 row_words=15 horizon=326
2026-09-13T19:45:42.477040Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=58 transfers=1368 maximum_identical_destinations=1
2026-09-13T19:45:42.477057Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=58 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.478967Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=58 tile=47 row_words=25 horizon=406
2026-09-13T19:45:42.494495Z  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=2151 maximum_identical_destinations=1
2026-09-13T19:45:42.494513Z  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=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:42.497541Z  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=1109 row_words=40 horizon=172
2026-09-13T19:45:43.077615Z  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=1076 maximum_identical_destinations=1
2026-09-13T19:45:43.077648Z  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=394 selected_horizon=394 endpoint_lower_bound=56 lower_bound_gap=338 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:43.089487Z  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=1027 row_words=103 horizon=394
2026-09-13T19:45:43.110527Z  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=1745 maximum_identical_destinations=1
2026-09-13T19:45:43.110551Z  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=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:43.113788Z  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=6 row_words=44 horizon=2165
2026-09-13T19:45:44.435600Z  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=112284 maximum_identical_destinations=1
2026-09-13T19:45:44.435633Z  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=14301 selected_horizon=14301 endpoint_lower_bound=9072 lower_bound_gap=5229 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:44.520775Z  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=707 row_words=445 horizon=14301
2026-09-13T19:45:45.745898Z  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=51948 maximum_identical_destinations=1
2026-09-13T19:45:45.745947Z  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=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:45.787594Z  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=68 row_words=172 horizon=859
2026-09-13T19:45:45.810452Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:45:45.810479Z  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=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:45.813323Z  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=22 row_words=23 horizon=2909
2026-09-13T19:45:45.992168Z  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=35928 maximum_identical_destinations=1
2026-09-13T19:45:45.992219Z  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=17843 selected_horizon=17843 endpoint_lower_bound=11616 lower_bound_gap=6227 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.023196Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=39 transfers=116530 maximum_identical_destinations=1
2026-09-13T19:45:46.023242Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=39 initial_horizon=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.098695Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=39 tile=101 row_words=1130 horizon=5303
2026-09-13T19:45:46.127230Z  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=113 row_words=1310 horizon=17843
2026-09-13T19:45:46.135294Z  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=195689 maximum_identical_destinations=1
2026-09-13T19:45:46.135328Z  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=2840 selected_horizon=2840 endpoint_lower_bound=2152 lower_bound_gap=688 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.164539Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=42 transfers=1152 maximum_identical_destinations=1
2026-09-13T19:45:46.164565Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=42 initial_horizon=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.165925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=42 tile=79 row_words=46 horizon=5743
2026-09-13T19:45:46.268739Z  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=12492 maximum_identical_destinations=1
2026-09-13T19:45:46.268769Z  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=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.278144Z  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=64 row_words=133 horizon=7129
2026-09-13T19:45:46.300337Z  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=553 row_words=637 horizon=2840
2026-09-13T19:45:46.345643Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=35 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:45:46.345668Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=35 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.349481Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=35 tile=866 row_words=10 horizon=471
2026-09-13T19:45:46.359575Z  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=1224 maximum_identical_destinations=1
2026-09-13T19:45:46.359592Z  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=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.361783Z  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=47 row_words=23 horizon=374
2026-09-13T19:45:46.402707Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=34 candidates=72 ordinary_horizon=162 paired_horizon=268 use_paired=false
2026-09-13T19:45:46.623303Z  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=20656 maximum_identical_destinations=1
2026-09-13T19:45:46.623337Z  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=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.643982Z  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=535 row_words=106 horizon=4485
2026-09-13T19:45:46.790652Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=32 transfers=45090 maximum_identical_destinations=1
2026-09-13T19:45:46.790685Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=32 initial_horizon=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:46.829718Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=32 tile=1090 row_words=186 horizon=7433
2026-09-13T19:45:47.612542Z  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=103635 maximum_identical_destinations=1
2026-09-13T19:45:47.612588Z  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=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:47.683659Z  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=235 row_words=253 horizon=1463
2026-09-13T19:45:47.911939Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=31 candidates=26244 ordinary_horizon=10429 paired_horizon=29600 use_paired=false
2026-09-13T19:45:48.139352Z  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=27540 maximum_identical_destinations=1
2026-09-13T19:45:48.139393Z  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=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:48.254563Z  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=465 row_words=878 horizon=10429
2026-09-13T19:45:48.628901Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=18 candidates=26244 ordinary_horizon=8244 paired_horizon=25585 use_paired=false
2026-09-13T19:45:48.855602Z  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=27972 maximum_identical_destinations=1
2026-09-13T19:45:48.855636Z  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=8244 selected_horizon=8244 endpoint_lower_bound=4656 lower_bound_gap=3588 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:48.970255Z  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=87 row_words=1136 horizon=8244
2026-09-13T19:45:50.294651Z  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=102240 maximum_identical_destinations=1
2026-09-13T19:45:50.294690Z  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=16852 selected_horizon=16852 endpoint_lower_bound=10000 lower_bound_gap=6852 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:45:50.487898Z  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=854 row_words=1832 horizon=16852
2026-09-13T19:46:03.070005Z  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
2026-09-13T19:46:03.623294Z  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
2026-09-13T19:46:03.623343Z  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
2026-09-13T19:46:03.857556Z  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
2026-09-13T19:46:03.963817Z  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=73 success=true
2026-09-13T19:46:03.966631Z  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
2026-09-13T19:46:03.970929Z  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
2026-09-13T19:46:04.631698Z  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=52276 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-13T19:46:07.678507Z  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=335 success=true
2026-09-13T19:46:07.678682Z  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=11600 exchange_table_bytes=52276 executable_ranges=[(378796, 378800), (378852, 378856), (379604, 379608), (380028, 380032), (383452, 383456), (385468, 385472), (386444, 386448), (396568, 524288)]
2026-09-13T19:46:07.679017Z  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=772 exchange_table_bytes=52276 host_code_bytes=9076 host_data_bytes=6272 generated_code_bytes=11600 code_address=396568 available_ranges=[(327680, 360448), (368480, 376832), (475136, 949168)]
2026-09-13T19:46:08.433616Z  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
2026-09-13T19:46:08.488933Z  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
2026-09-13T19:46:08.523573Z  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
2026-09-13T19:46:08.525884Z  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
2026-09-13T19:46:08.525904Z  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
2026-09-13T19:46:08.535013Z  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
2026-09-13T19:46:08.545342Z  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
2026-09-13T19:46:08.560811Z  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
2026-09-13T19:46:08.606991Z  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
2026-09-13T19:46:08.627081Z  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
2026-09-13T19:46:08.627757Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=46 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:46:08.627773Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.632846Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=46 tile=866 row_words=10 horizon=471
2026-09-13T19:46:08.644999Z  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
2026-09-13T19:46:08.645624Z  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=47 transfers=1224 maximum_identical_destinations=1
2026-09-13T19:46:08.645640Z  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=47 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.649096Z  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=47 tile=47 row_words=23 horizon=374
2026-09-13T19:46:08.654764Z  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
2026-09-13T19:46:08.661621Z  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
2026-09-13T19:46:08.663558Z  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
2026-09-13T19:46:08.664866Z  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
2026-09-13T19:46:08.700266Z  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
2026-09-13T19:46:08.794767Z  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
2026-09-13T19:46:08.800113Z  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=9654 maximum_identical_destinations=1
2026-09-13T19:46:08.800134Z  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=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.813815Z  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=943 row_words=46 horizon=1690
2026-09-13T19:46:08.829978Z  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
2026-09-13T19:46:08.830608Z  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=1288 maximum_identical_destinations=1
2026-09-13T19:46:08.830624Z  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=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.835063Z  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=89 row_words=15 horizon=326
2026-09-13T19:46:08.860212Z  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
2026-09-13T19:46:08.870222Z  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
2026-09-13T19:46:08.871321Z  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=2151 maximum_identical_destinations=1
2026-09-13T19:46:08.871336Z  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=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.874161Z  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
2026-09-13T19:46:08.874184Z  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
2026-09-13T19:46:08.876236Z  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=1109 row_words=40 horizon=172
2026-09-13T19:46:08.902322Z  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
2026-09-13T19:46:08.949102Z  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
2026-09-13T19:46:08.984645Z  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
2026-09-13T19:46:08.984948Z  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
2026-09-13T19:46:08.985047Z  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
2026-09-13T19:46:08.991124Z  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
2026-09-13T19:46:08.992066Z  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=57 transfers=1725 maximum_identical_destinations=1
2026-09-13T19:46:08.992084Z  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=57 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:08.998040Z  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=57 tile=1357 row_words=14 horizon=1112
2026-09-13T19:46:09.007971Z  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
2026-09-13T19:46:09.008993Z  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=1745 maximum_identical_destinations=1
2026-09-13T19:46:09.009010Z  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=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.011810Z  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
2026-09-13T19:46:09.012626Z  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=58 transfers=1368 maximum_identical_destinations=1
2026-09-13T19:46:09.012643Z  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=58 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.015555Z  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=6 row_words=44 horizon=2165
2026-09-13T19:46:09.015866Z  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=58 tile=47 row_words=25 horizon=406
2026-09-13T19:46:09.021481Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-13T19:46:09.028238Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-13T19:46:09.036564Z  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
2026-09-13T19:46:09.170408Z  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
2026-09-13T19:46:09.182376Z  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
2026-09-13T19:46:09.182399Z  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
2026-09-13T19:46:09.202175Z  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
2026-09-13T19:46:09.278280Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-13T19:46:09.281386Z  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=1475 maximum_identical_destinations=1
2026-09-13T19:46:09.281410Z  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=2586 selected_horizon=2586 endpoint_lower_bound=1728 lower_bound_gap=858 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.289508Z  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=171 row_words=35 horizon=2586
2026-09-13T19:46:09.423254Z  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
2026-09-13T19:46:09.443606Z  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=39744 maximum_identical_destinations=1
2026-09-13T19:46:09.443631Z  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=7115 selected_horizon=7115 endpoint_lower_bound=4096 lower_bound_gap=3019 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.475098Z  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=907 row_words=172 horizon=7115
2026-09-13T19:46:09.537753Z  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
2026-09-13T19:46:09.564427Z  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=58256 maximum_identical_destinations=1
2026-09-13T19:46:09.564449Z  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=2434 selected_horizon=2434 endpoint_lower_bound=2304 lower_bound_gap=130 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.565020Z  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
2026-09-13T19:46:09.576636Z  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=1076 maximum_identical_destinations=1
2026-09-13T19:46:09.576659Z  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=394 selected_horizon=394 endpoint_lower_bound=56 lower_bound_gap=338 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:09.589557Z  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=1027 row_words=103 horizon=394
2026-09-13T19:46:09.609642Z  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=79 row_words=489 horizon=2434
2026-09-13T19:46:09.610850Z  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
2026-09-13T19:46:09.611815Z  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
2026-09-13T19:46:09.611829Z  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
2026-09-13T19:46:09.615714Z  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=712 row_words=20 horizon=3193
2026-09-13T19:46:10.051469Z  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
2026-09-13T19:46:10.073399Z  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=48240 maximum_identical_destinations=1
2026-09-13T19:46:10.073426Z  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=2663 selected_horizon=2663 endpoint_lower_bound=2240 lower_bound_gap=423 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:10.103180Z  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=1120 row_words=123 horizon=2663
2026-09-13T19:46:10.277174Z  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
2026-09-13T19:46:10.282362Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1
2026-09-13T19:46:10.282386Z  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=1436 selected_horizon=1436 endpoint_lower_bound=576 lower_bound_gap=860 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:10.292491Z  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=251 row_words=70 horizon=1436
2026-09-13T19:46:10.820509Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-13T19:46:10.856727Z  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=18000 maximum_identical_destinations=1
2026-09-13T19:46:10.856753Z  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=3359 selected_horizon=3359 endpoint_lower_bound=2916 lower_bound_gap=443 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:10.897600Z  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
2026-09-13T19:46:10.900387Z  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=166 row_words=316 horizon=3359
2026-09-13T19:46:10.928364Z  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=81584 maximum_identical_destinations=1
2026-09-13T19:46:10.928393Z  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=6909 selected_horizon=6909 endpoint_lower_bound=4896 lower_bound_gap=2013 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:10.979470Z  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=20 row_words=507 horizon=6909
2026-09-13T19:46:11.230387Z  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
2026-09-13T19:46:11.292787Z  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
2026-09-13T19:46:11.292816Z  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
2026-09-13T19:46:11.404094Z  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
2026-09-13T19:46:11.421820Z  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
2026-09-13T19:46:11.437398Z  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
2026-09-13T19:46:11.448083Z  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
2026-09-13T19:46:11.448496Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=42 transfers=1152 maximum_identical_destinations=1
2026-09-13T19:46:11.448507Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:11.450086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=42 tile=79 row_words=46 horizon=5743
2026-09-13T19:46:11.453935Z  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
2026-09-13T19:46:11.455463Z  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
2026-09-13T19:46:11.474850Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=116530 maximum_identical_destinations=1
2026-09-13T19:46:11.474884Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:11.558223Z  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
2026-09-13T19:46:11.575242Z  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=8784 maximum_identical_destinations=1
2026-09-13T19:46:11.575263Z  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=2257 selected_horizon=2257 endpoint_lower_bound=1920 lower_bound_gap=337 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:11.586352Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=101 row_words=1130 horizon=5303
2026-09-13T19:46:11.591900Z  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
2026-09-13T19:46:11.596035Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=13 tile=13 row_words=227 horizon=2257
2026-09-13T19:46:11.596885Z  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=12492 maximum_identical_destinations=1
2026-09-13T19:46:11.596903Z  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=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:11.607188Z  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=64 row_words=133 horizon=7129
2026-09-13T19:46:11.737102Z  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=8694 maximum_identical_destinations=1
2026-09-13T19:46:11.737140Z  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=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:46:11.748716Z  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=1428 row_words=47 horizon=14502
2026-09-13T19:46:12.334305Z  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
2026-09-13T19:46:12.359706Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=28 transfers=51925 maximum_identical_destinations=1
2026-09-13T19:46:12.359759Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=28 initial_horizon=855 selected_horizon=855 endpoint_lower_bound=576 lower_bound_gap=279 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:12.397162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=28 tile=440 row_words=128 horizon=855
2026-09-13T19:46:12.413683Z  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
2026-09-13T19:46:12.414156Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:46:12.414165Z  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=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:12.416707Z  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=13 row_words=21 horizon=2978
2026-09-13T19:46:12.867004Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1
2026-09-13T19:46:12.867044Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=14 initial_horizon=7105 selected_horizon=7105 endpoint_lower_bound=3240 lower_bound_gap=3865 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:46:12.907702Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=14 tile=320 row_words=295 horizon=7105
2026-09-13T19:46:13.767896Z  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
2026-09-13T19:46:13.858868Z  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=27540 maximum_identical_destinations=1
2026-09-13T19:46:13.858906Z  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=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:13.954161Z  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=465 row_words=878 horizon=10429
2026-09-13T19:46:14.071697Z  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
2026-09-13T19:46:14.120456Z  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=103635 maximum_identical_destinations=1
2026-09-13T19:46:14.120484Z  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=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.195111Z  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=235 row_words=253 horizon=1463
2026-09-13T19:46:14.227340Z  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
2026-09-13T19:46:14.241550Z  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
2026-09-13T19:46:14.241944Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=35 transfers=1294 maximum_identical_destinations=1
2026-09-13T19:46:14.241952Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=35 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.245158Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=35 tile=866 row_words=10 horizon=471
2026-09-13T19:46:14.252758Z  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
2026-09-13T19:46:14.253100Z  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=1224 maximum_identical_destinations=1
2026-09-13T19:46:14.253107Z  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=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.254991Z  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=47 row_words=23 horizon=374
2026-09-13T19:46:14.566763Z  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
2026-09-13T19:46:14.587364Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=32 transfers=45090 maximum_identical_destinations=1
2026-09-13T19:46:14.587387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=32 initial_horizon=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.625036Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=32 tile=1090 row_words=186 horizon=7433
2026-09-13T19:46:14.640453Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-13T19:46:14.640870Z  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=1457 maximum_identical_destinations=1
2026-09-13T19:46:14.640877Z  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=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.643590Z  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=22 row_words=23 horizon=2909
2026-09-13T19:46:14.771574Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-13T19:46:14.857841Z  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=195689 maximum_identical_destinations=1
2026-09-13T19:46:14.857880Z  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=2840 selected_horizon=2840 endpoint_lower_bound=2152 lower_bound_gap=688 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.927868Z  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
2026-09-13T19:46:14.937743Z  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=20656 maximum_identical_destinations=1
2026-09-13T19:46:14.937770Z  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=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:14.960776Z  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=535 row_words=106 horizon=4485
2026-09-13T19:46:15.032537Z  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=553 row_words=637 horizon=2840
2026-09-13T19:46:15.126704Z  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
2026-09-13T19:46:15.156236Z  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=51948 maximum_identical_destinations=1
2026-09-13T19:46:15.156265Z  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=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:15.201081Z  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=68 row_words=172 horizon=859
2026-09-13T19:46:15.892115Z  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
2026-09-13T19:46:16.016580Z  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=27972 maximum_identical_destinations=1
2026-09-13T19:46:16.016614Z  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=8244 selected_horizon=8244 endpoint_lower_bound=4656 lower_bound_gap=3588 selected_kind="reused" neighborhood_improvements=0
2026-09-13T19:46:16.133078Z  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=87 row_words=1136 horizon=8244
2026-09-13T19:46:16.522593Z  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=112284 maximum_identical_destinations=1
2026-09-13T19:46:16.522636Z  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=13708 selected_horizon=13708 endpoint_lower_bound=9072 lower_bound_gap=4636 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:46:16.605501Z  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=472 row_words=437 horizon=13708
2026-09-13T19:46:20.896108Z  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=35928 maximum_identical_destinations=1
2026-09-13T19:46:20.896147Z  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=17390 selected_horizon=17390 endpoint_lower_bound=11616 lower_bound_gap=5774 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:46:21.037900Z  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=5 row_words=1313 horizon=17390
2026-09-13T19:46:21.122313Z  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
2026-09-13T19:46:21.435109Z  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
2026-09-13T19:46:21.435152Z  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
2026-09-13T19:46:21.696267Z  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
2026-09-13T19:46:22.729032Z  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
2026-09-13T19:46:22.761736Z  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
2026-09-13T19:46:22.761762Z  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
2026-09-13T19:46:22.812699Z  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
2026-09-13T19:46:26.469865Z  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=102240 maximum_identical_destinations=1
2026-09-13T19:46:26.469916Z  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=15651 selected_horizon=15651 endpoint_lower_bound=10000 lower_bound_gap=5651 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-13T19:46:26.663750Z  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=118 row_words=1820 horizon=15651
2026-09-13T19:46:26.708607Z  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=18274 success=true
2026-09-13T19:46:44.680903Z  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=17972 success=true
2026-09-13T19:46:44.699385Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=10817832 final_exchange=4741677
2026-09-13T19:46:47.111953Z  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=367 success=true
2026-09-13T19:46:47.225812Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=113 success=true
2026-09-13T19:46:47.754088Z  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=480 success=true
2026-09-13T19:46:48.111165Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=10817832 resuming=true
2026-09-13T19:46:48.159710Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/full-qk-20260913/bs1-k/state.json attempts=0 bytes=15780341
2026-09-13T19:46:48.199777Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/full-qk-20260913/bs1-k/state.json attempts=0 bytes=15780341
2026-09-13T19:46:48.441639Z  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=81664 success=true
2026-09-13T19:46:50.748063Z  INFO ipu_codegen.package.build{tile_count=1472 operations=25}: wrote exact tile placement profile path=artifacts/full-qk-20260913/bs1-k/memory/placement-597788.html
2026-09-13T19:46:51.479574Z  INFO writing application package tiles=1472
2026-09-13T19:46:51.981313Z  INFO application package written
2026-09-13T19:46:51.996349Z  INFO reading application package
2026-09-13T19:46:53.024837Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-13T19:46:53.055180Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-13T19:46:53.055222Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-13T19:46:53.055230Z  INFO opening IPU device path="/dev/ipu0"
2026-09-13T19:46:53.055265Z  INFO IPU device attached path=/dev/ipu0
2026-09-13T19:46:53.055270Z  INFO initializing IPU device
2026-09-13T19:46:53.063065Z  INFO IPU device initialized
2026-09-13T19:46:53.063083Z  INFO replaying device configuration register_writes=2003
2026-09-13T19:46:53.094828Z  INFO loading application tile_count=1472 final_mark=23
2026-09-13T19:46:53.296764Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-13T19:46:59.142417Z  INFO prepared reference inputs elapsed_ms=5844
2026-09-13T19:46:59.142804Z  INFO configured host reference BLAS threads=4
referencePrecision=fp32
2026-09-13T19:47:23.224669Z  INFO evaluated host reference elapsed_ms=24082
2026-09-13T19:47:23.228820Z  INFO starting host exchange session startup_mark=23
2026-09-13T19:47:23.228849Z  INFO attaching host exchange pages pages=2
2026-09-13T19:47:23.229498Z  INFO host exchange session started
2026-09-13T19:47:23.230899Z  INFO invoking host exchange call call="initialize" command=0 phases=342
2026-09-13T19:47:23.441869Z  INFO invoking host exchange call call="run" command=0 phases=13
referenceMinimumCosineSimilarity=0.994179673
referenceInference=1 numericalTest=PASS
2026-09-13T19:47:23.451688Z  INFO invoking host exchange call call="run" command=0 phases=13
referenceMinimumCosineSimilarity=0.994179673
referenceInference=2 numericalTest=PASS
referenceMaximumAbsoluteError=0.424083 numericalTest=PASS
package=artifacts/full-qk-20260913/bs1-k/model.ipuexe tiles=1472 hardwareTest=PASS