2026-09-12T12:55:17.268702Z WARN PE capacity probe: RoPE omitted; layernorm epsilon remains 1e-6 instead of PE's 1e-5; numerical results are not PE model accuracy 2026-09-12T12:55:17.269680Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true 2026-09-12T12:55:41.491329Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: wrote planner memory profile path=artifacts/capacity-baseline-20260912/pe-b2-final/memory/baseline-454231-0000.json scope="baseline" peak_step=127 effective_peak_bytes=419624 2026-09-12T12:55:51.898681Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=8570 expansion_and_footprint_ms=10407 estimated_row_bytes=108752 heuristic_row_bytes=332456 geometry_fragments_per_tile=11918 fragment_limit=16384 2026-09-12T12:55:52.096598Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=1024 2026-09-12T12:55:52.687890Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: placed tile storage tiles=1472 shards=423999 elapsed_us=534438 2026-09-12T12:55:52.788901Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=21 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:55:52.788932Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=21 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.790160Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=21 tile=149 row_words=19 horizon=7895 2026-09-12T12:55:52.793506Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=23 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:55:52.793540Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=23 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.795296Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=23 tile=1433 row_words=19 horizon=7895 2026-09-12T12:55:52.800417Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=20 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:55:52.800449Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=20 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.801467Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=22 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:55:52.801480Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=22 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.802186Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=20 tile=515 row_words=19 horizon=7895 2026-09-12T12:55:52.802661Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=22 tile=1415 row_words=19 horizon=7895 2026-09-12T12:55:52.810975Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=6 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:52.810999Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=6 initial_horizon=3526 selected_horizon=3526 endpoint_lower_bound=3456 lower_bound_gap=70 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.813755Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=6 tile=1310 row_words=84 horizon=3526 2026-09-12T12:55:52.816871Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=90 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:55:52.816899Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=90 initial_horizon=1071 selected_horizon=1071 endpoint_lower_bound=256 lower_bound_gap=815 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.818482Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=90 tile=866 row_words=10 horizon=1071 2026-09-12T12:55:52.856130Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=7 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:52.856161Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=7 initial_horizon=4104 selected_horizon=4104 endpoint_lower_bound=4032 lower_bound_gap=72 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.858222Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=98 transfers=8180 maximum_identical_destinations=1 2026-09-12T12:55:52.858269Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=98 initial_horizon=2059 selected_horizon=2059 endpoint_lower_bound=768 lower_bound_gap=1291 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.861003Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=7 tile=1339 row_words=95 horizon=4104 2026-09-12T12:55:52.865131Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=98 tile=327 row_words=32 horizon=2059 2026-09-12T12:55:52.880417Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=99 transfers=1330 maximum_identical_destinations=1 2026-09-12T12:55:52.880441Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=99 initial_horizon=742 selected_horizon=742 endpoint_lower_bound=640 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.881472Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=99 tile=105 row_words=15 horizon=742 2026-09-12T12:55:52.891281Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=95 candidates=64 ordinary_horizon=231 paired_horizon=1250 use_paired=false 2026-09-12T12:55:52.897973Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=100 transfers=1535 maximum_identical_destinations=1 2026-09-12T12:55:52.897991Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=100 initial_horizon=204 selected_horizon=204 endpoint_lower_bound=64 lower_bound_gap=140 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.899445Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=100 tile=80 row_words=21 horizon=204 2026-09-12T12:55:52.923445Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=13 candidates=16 ordinary_horizon=1727 paired_horizon=1804 use_paired=false 2026-09-12T12:55:52.940619Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=9 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:52.940646Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=9 initial_horizon=5250 selected_horizon=5250 endpoint_lower_bound=5184 lower_bound_gap=66 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.944759Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=8 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:52.944787Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=8 initial_horizon=4677 selected_horizon=4677 endpoint_lower_bound=4608 lower_bound_gap=69 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.944936Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=9 tile=1397 row_words=120 horizon=5250 2026-09-12T12:55:52.948705Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=8 tile=1368 row_words=108 horizon=4677 2026-09-12T12:55:52.958606Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=101 transfers=1023 maximum_identical_destinations=1 2026-09-12T12:55:52.958627Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=101 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4092 lower_bound_gap=58 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.959422Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=101 tile=0 row_words=1028 horizon=4150 2026-09-12T12:55:52.968863Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=104 transfers=1344 maximum_identical_destinations=1 2026-09-12T12:55:52.968885Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=104 initial_horizon=774 selected_horizon=774 endpoint_lower_bound=672 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.969923Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=104 tile=13 row_words=27 horizon=774 2026-09-12T12:55:52.973426Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=41 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:52.973462Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=41 initial_horizon=5387 selected_horizon=5387 endpoint_lower_bound=5280 lower_bound_gap=107 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.980751Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=41 tile=1285 row_words=144 horizon=5387 2026-09-12T12:55:52.986804Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=102 candidates=42 ordinary_horizon=4202 paired_horizon=4832 use_paired=false 2026-09-12T12:55:52.994999Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=10 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:52.995022Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=10 initial_horizon=5639 selected_horizon=5639 endpoint_lower_bound=5568 lower_bound_gap=71 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:52.997737Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=56 candidates=16 ordinary_horizon=1735 paired_horizon=1647 use_paired=false 2026-09-12T12:55:52.999309Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=10 tile=1426 row_words=131 horizon=5639 2026-09-12T12:55:53.006616Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=103 transfers=1578 maximum_identical_destinations=1 2026-09-12T12:55:53.006636Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=103 initial_horizon=2390 selected_horizon=2390 endpoint_lower_bound=768 lower_bound_gap=1622 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.009054Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=103 tile=1339 row_words=14 horizon=2390 2026-09-12T12:55:53.018182Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=107 candidates=30 ordinary_horizon=1145 paired_horizon=2480 use_paired=false 2026-09-12T12:55:53.030834Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=108 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:55:53.030856Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=108 initial_horizon=1071 selected_horizon=1071 endpoint_lower_bound=256 lower_bound_gap=815 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.032319Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=108 tile=866 row_words=10 horizon=1071 2026-09-12T12:55:53.035180Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=89 candidates=30 ordinary_horizon=1145 paired_horizon=2480 use_paired=false 2026-09-12T12:55:53.049615Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=15 candidates=16 ordinary_horizon=1657 paired_horizon=1768 use_paired=false 2026-09-12T12:55:53.185407Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=42 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.185452Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=42 initial_horizon=5667 selected_horizon=5667 endpoint_lower_bound=5600 lower_bound_gap=67 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.191521Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=44 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.191545Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=44 initial_horizon=6299 selected_horizon=6299 endpoint_lower_bound=6240 lower_bound_gap=59 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.192531Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=42 tile=1103 row_words=144 horizon=5667 2026-09-12T12:55:53.196304Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=44 tile=1129 row_words=164 horizon=6299 2026-09-12T12:55:53.238385Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=48 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.238416Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=48 initial_horizon=6637 selected_horizon=6637 endpoint_lower_bound=6560 lower_bound_gap=77 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.246400Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=48 tile=1178 row_words=205 horizon=6637 2026-09-12T12:55:53.326898Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=45 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.326922Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=45 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.331938Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=45 tile=933 row_words=175 horizon=6620 2026-09-12T12:55:53.362003Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=49 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.362043Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=49 initial_horizon=6647 selected_horizon=6647 endpoint_lower_bound=6560 lower_bound_gap=87 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.370980Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=49 tile=1194 row_words=226 horizon=6647 2026-09-12T12:55:53.408434Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=43 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.408471Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=43 initial_horizon=5978 selected_horizon=5978 endpoint_lower_bound=5920 lower_bound_gap=58 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.416475Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=43 tile=1116 row_words=155 horizon=5978 2026-09-12T12:55:53.472366Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=46 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.472394Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=46 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.474158Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=18 transfers=2398 maximum_identical_destinations=1 2026-09-12T12:55:53.474184Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=18 initial_horizon=18672 selected_horizon=18672 endpoint_lower_bound=9856 lower_bound_gap=8816 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.477627Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=46 tile=1151 row_words=185 horizon=6620 2026-09-12T12:55:53.480013Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=50 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.480040Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=50 initial_horizon=6772 selected_horizon=6772 endpoint_lower_bound=6720 lower_bound_gap=52 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.483244Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=18 tile=48 row_words=61 horizon=18672 2026-09-12T12:55:53.488982Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=50 tile=1202 row_words=225 horizon=6772 2026-09-12T12:55:53.512124Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=19 transfers=2790 maximum_identical_destinations=1 2026-09-12T12:55:53.512146Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=19 initial_horizon=7863 selected_horizon=7863 endpoint_lower_bound=7680 lower_bound_gap=183 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.514874Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=19 tile=965 row_words=25 horizon=7863 2026-09-12T12:55:53.530529Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=76 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:53.530548Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=76 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.532029Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=76 tile=1143 row_words=23 horizon=7125 2026-09-12T12:55:53.550956Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=47 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.550974Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=47 initial_horizon=6630 selected_horizon=6630 endpoint_lower_bound=6560 lower_bound_gap=70 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.556411Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=47 tile=1167 row_words=195 horizon=6630 2026-09-12T12:55:53.606009Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=51 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.606042Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=51 initial_horizon=6774 selected_horizon=6774 endpoint_lower_bound=6720 lower_bound_gap=54 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.615142Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=51 tile=1215 row_words=225 horizon=6774 2026-09-12T12:55:53.679744Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=39 transfers=19328 maximum_identical_destinations=1 2026-09-12T12:55:53.679786Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=39 initial_horizon=6337 selected_horizon=6337 endpoint_lower_bound=6240 lower_bound_gap=97 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.690725Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=40 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.690748Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=40 initial_horizon=5858 selected_horizon=5858 endpoint_lower_bound=5760 lower_bound_gap=98 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.691034Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=39 tile=1051 row_words=215 horizon=6337 2026-09-12T12:55:53.695867Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=40 tile=1272 row_words=154 horizon=5858 2026-09-12T12:55:53.723749Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=52 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.723778Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=52 initial_horizon=6787 selected_horizon=6787 endpoint_lower_bound=6720 lower_bound_gap=67 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.732943Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=52 tile=1231 row_words=224 horizon=6787 2026-09-12T12:55:53.800699Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=37 transfers=18451 maximum_identical_destinations=1 2026-09-12T12:55:53.800804Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=37 initial_horizon=2480 selected_horizon=2480 endpoint_lower_bound=1024 lower_bound_gap=1456 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.803681Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=53 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:55:53.803776Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=53 initial_horizon=6804 selected_horizon=6804 endpoint_lower_bound=6720 lower_bound_gap=84 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.815154Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=37 tile=50 row_words=124 horizon=2480 2026-09-12T12:55:53.815912Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=53 tile=1244 row_words=224 horizon=6804 2026-09-12T12:55:53.833317Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=72 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:53.833339Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=72 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.834869Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=72 tile=1342 row_words=22 horizon=7129 2026-09-12T12:55:53.850042Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=73 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:53.850059Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=73 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.851682Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=73 tile=967 row_words=23 horizon=7125 2026-09-12T12:55:53.866633Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=74 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:53.866649Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=74 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.868292Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=74 tile=1239 row_words=23 horizon=7125 2026-09-12T12:55:53.883248Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=75 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:53.883263Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=75 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:53.884878Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=75 tile=1255 row_words=23 horizon=7125 2026-09-12T12:55:54.330312Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=11 transfers=73796 maximum_identical_destinations=1 2026-09-12T12:55:54.330355Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=11 initial_horizon=1276 selected_horizon=1276 endpoint_lower_bound=1024 lower_bound_gap=252 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.371570Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=11 tile=263 row_words=317 horizon=1276 2026-09-12T12:55:54.419637Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=12 transfers=2031 maximum_identical_destinations=1 2026-09-12T12:55:54.419685Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=12 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=512 lower_bound_gap=136 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.422928Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=12 tile=550 row_words=14 horizon=648 2026-09-12T12:55:54.491293Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=3 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:54.491333Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=3 initial_horizon=4509 selected_horizon=4509 endpoint_lower_bound=4416 lower_bound_gap=93 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.495666Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=3 tile=1194 row_words=99 horizon=4509 2026-09-12T12:55:54.593741Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=4 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:54.593793Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=4 initial_horizon=3903 selected_horizon=3903 endpoint_lower_bound=3840 lower_bound_gap=63 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.600470Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=4 tile=1223 row_words=87 horizon=3903 2026-09-12T12:55:54.681568Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=5 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:55:54.681610Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=5 initial_horizon=3354 selected_horizon=3354 endpoint_lower_bound=3264 lower_bound_gap=90 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.688327Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=5 tile=1252 row_words=81 horizon=3354 2026-09-12T12:55:54.718548Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=70 transfers=2728 maximum_identical_destinations=1 2026-09-12T12:55:54.718572Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=70 initial_horizon=7117 selected_horizon=7117 endpoint_lower_bound=6912 lower_bound_gap=205 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.721177Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=70 tile=773 row_words=30 horizon=7117 2026-09-12T12:55:54.737619Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=71 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:55:54.737636Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=71 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.739381Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=71 tile=1326 row_words=23 horizon=7129 2026-09-12T12:55:54.802414Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=63 transfers=2395 maximum_identical_destinations=1 2026-09-12T12:55:54.802439Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=63 initial_horizon=9508 selected_horizon=9508 endpoint_lower_bound=5376 lower_bound_gap=4132 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:54.810923Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=63 tile=208 row_words=33 horizon=9508 2026-09-12T12:55:55.501347Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=64 transfers=66960 maximum_identical_destinations=1 2026-09-12T12:55:55.501403Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=64 initial_horizon=10992 selected_horizon=10992 endpoint_lower_bound=9600 lower_bound_gap=1392 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:55.556876Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=64 tile=672 row_words=276 horizon=10992 2026-09-12T12:55:55.768673Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=67 candidates=16 ordinary_horizon=1727 paired_horizon=1804 use_paired=false 2026-09-12T12:55:56.501118Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=54 candidates=8 ordinary_horizon=1309 paired_horizon=1222 use_paired=false 2026-09-12T12:55:56.579136Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=54 transfers=73814 maximum_identical_destinations=1 2026-09-12T12:55:56.579181Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=54 initial_horizon=1309 selected_horizon=1309 endpoint_lower_bound=1024 lower_bound_gap=285 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:56.635530Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=54 tile=171 row_words=181 horizon=1309 2026-09-12T12:55:57.216458Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=1 transfers=38130 maximum_identical_destinations=1 2026-09-12T12:55:57.216490Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=1 initial_horizon=2175 selected_horizon=2175 endpoint_lower_bound=896 lower_bound_gap=1279 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:57.232509Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=1 tile=90 row_words=243 horizon=2175 2026-09-12T12:55:57.355295Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=2 transfers=7424 maximum_identical_destinations=1 2026-09-12T12:55:57.355342Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=2 initial_horizon=5094 selected_horizon=5094 endpoint_lower_bound=4992 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:57.360189Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=2 tile=1165 row_words=135 horizon=5094 2026-09-12T12:55:57.835488Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=65 candidates=8 ordinary_horizon=1470 paired_horizon=1484 use_paired=false 2026-09-12T12:55:57.899146Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=65 transfers=73800 maximum_identical_destinations=1 2026-09-12T12:55:57.899182Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=65 initial_horizon=1470 selected_horizon=1470 endpoint_lower_bound=1024 lower_bound_gap=446 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:57.940422Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=65 tile=722 row_words=272 horizon=1470 2026-09-12T12:55:58.027192Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=79 candidates=128 ordinary_horizon=178 paired_horizon=504 use_paired=false 2026-09-12T12:55:58.039881Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=80 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:55:58.039905Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=80 initial_horizon=868 selected_horizon=868 endpoint_lower_bound=256 lower_bound_gap=612 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:58.040982Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=80 tile=866 row_words=10 horizon=868 2026-09-12T12:55:59.718450Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=84 transfers=82504 maximum_identical_destinations=1 2026-09-12T12:55:59.718491Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=84 initial_horizon=9256 selected_horizon=9256 endpoint_lower_bound=5632 lower_bound_gap=3624 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:55:59.768277Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=84 tile=62 row_words=1502 horizon=9256 2026-09-12T12:56:00.181612Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=38 transfers=38158 maximum_identical_destinations=1 2026-09-12T12:56:00.181661Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=38 initial_horizon=9095 selected_horizon=9095 endpoint_lower_bound=3968 lower_bound_gap=5127 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:00.260669Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=38 tile=5 row_words=883 horizon=9095 2026-09-12T12:56:00.660760Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=0 transfers=21926 maximum_identical_destinations=1 2026-09-12T12:56:00.660804Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=0 initial_horizon=8534 selected_horizon=8534 endpoint_lower_bound=3712 lower_bound_gap=4822 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:00.676244Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=17 candidates=36928 ordinary_horizon=6608 paired_horizon=30894 use_paired=false 2026-09-12T12:56:00.752536Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=0 tile=86 row_words=1175 horizon=8534 2026-09-12T12:56:00.876012Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=17 transfers=36928 maximum_identical_destinations=1 2026-09-12T12:56:00.876045Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=17 initial_horizon=6608 selected_horizon=6608 endpoint_lower_bound=3840 lower_bound_gap=2768 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:00.956727Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=17 tile=20 row_words=1178 horizon=6608 2026-09-12T12:56:01.262384Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=69 candidates=36928 ordinary_horizon=16842 paired_horizon=42798 use_paired=false 2026-09-12T12:56:01.479642Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=69 transfers=39101 maximum_identical_destinations=1 2026-09-12T12:56:01.479682Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=69 initial_horizon=16842 selected_horizon=16842 endpoint_lower_bound=7552 lower_bound_gap=9290 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:01.587718Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=69 tile=20 row_words=1075 horizon=16842 2026-09-12T12:56:02.516520Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=26 transfers=166035 maximum_identical_destinations=1 2026-09-12T12:56:02.516562Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=26 initial_horizon=3553 selected_horizon=3553 endpoint_lower_bound=3072 lower_bound_gap=481 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:02.758520Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=26 tile=58 row_words=732 horizon=3553 2026-09-12T12:56:06.184065Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=77 candidates=16 ordinary_horizon=2729 paired_horizon=2611 use_paired=false 2026-09-12T12:56:06.211144Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=24 candidates=24 ordinary_horizon=3921 paired_horizon=4529 use_paired=false 2026-09-12T12:56:06.325825Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=77 transfers=147594 maximum_identical_destinations=1 2026-09-12T12:56:06.325870Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=77 initial_horizon=2729 selected_horizon=2729 endpoint_lower_bound=2048 lower_bound_gap=681 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:06.436989Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=77 tile=81 row_words=552 horizon=2729 2026-09-12T12:56:06.568066Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=24 transfers=221370 maximum_identical_destinations=1 2026-09-12T12:56:06.568106Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=24 initial_horizon=3921 selected_horizon=3921 endpoint_lower_bound=3072 lower_bound_gap=849 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:06.842777Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=24 tile=117 row_words=637 horizon=3921 2026-09-12T12:56:06.888539Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=58 transfers=45375 maximum_identical_destinations=1 2026-09-12T12:56:06.888575Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=58 initial_horizon=27446 selected_horizon=27446 endpoint_lower_bound=15104 lower_bound_gap=12342 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:07.084784Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=58 tile=372 row_words=2102 horizon=27446 2026-09-12T12:56:07.195958Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=59 transfers=5874 maximum_identical_destinations=1 2026-09-12T12:56:07.195995Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=59 initial_horizon=8746 selected_horizon=8746 endpoint_lower_bound=6912 lower_bound_gap=1834 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:07.200362Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=59 tile=1041 row_words=40 horizon=8746 2026-09-12T12:56:14.558602Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=60 candidates=32 ordinary_horizon=4819 paired_horizon=4557 use_paired=false 2026-09-12T12:56:15.046373Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=60 transfers=295194 maximum_identical_destinations=1 2026-09-12T12:56:15.046425Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=60 initial_horizon=4819 selected_horizon=4819 endpoint_lower_bound=4096 lower_bound_gap=723 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:15.392353Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=60 tile=85 row_words=830 horizon=4819 2026-09-12T12:56:34.968693Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=62 candidates=147712 ordinary_horizon=15937 paired_horizon=104468 use_paired=false 2026-09-12T12:56:36.253384Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=62 transfers=147712 maximum_identical_destinations=1 2026-09-12T12:56:36.253429Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=62 initial_horizon=15937 selected_horizon=15937 endpoint_lower_bound=14112 lower_bound_gap=1825 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:36.824532Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=62 tile=270 row_words=4194 horizon=15937 2026-09-12T12:56:36.998511Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=74 success=true 2026-09-12T12:56:37.003095Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=4 success=true 2026-09-12T12:56:37.010920Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true 2026-09-12T12:56:38.274214Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=74436 maximum_uncompressed_repeat_patch_bytes=9984 maximum_elided_arithmetic_patch_bytes=9984 2026-09-12T12:56:41.517919Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=190 success=true 2026-09-12T12:56:41.518021Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=389340 host_code_base=389344 host_code_bytes=8012 generated_code_bytes=13960 exchange_table_bytes=74436 executable_ranges=[(377524, 377528), (377916, 377920), (378820, 378824), (379524, 379528), (379692, 379696), (381428, 381432), (383444, 383448), (385156, 385160), (387172, 387176), (387924, 387928), (388588, 388592), (389340, 389344), (397424, 524288)] 2026-09-12T12:56:41.518080Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=389340 profile_bytes=0 exchange_table_bytes=74436 host_code_bytes=8012 host_data_bytes=5144 generated_code_bytes=13960 code_address=397424 available_ranges=[(327680, 360448), (367352, 376832), (507904, 949168)] 2026-09-12T12:56:42.189628Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: placed tile storage tiles=1472 shards=423999 elapsed_us=671513 2026-09-12T12:56:42.276462Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=758 success=true 2026-09-12T12:56:42.284851Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55 2026-09-12T12:56:42.295527Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20 2026-09-12T12:56:42.296283Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=20 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:56:42.296298Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.297996Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21 2026-09-12T12:56:42.298299Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=20 tile=515 row_words=19 horizon=7895 2026-09-12T12:56:42.298623Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=21 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:56:42.298637Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.300522Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=21 tile=149 row_words=19 horizon=7895 2026-09-12T12:56:42.301561Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23 2026-09-12T12:56:42.302360Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=23 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:56:42.302384Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.305128Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=23 tile=1433 row_words=19 horizon=7895 2026-09-12T12:56:42.316892Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22 2026-09-12T12:56:42.317401Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=22 transfers=1440 maximum_identical_destinations=1 2026-09-12T12:56:42.317414Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=7895 selected_horizon=7895 endpoint_lower_bound=7680 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.319293Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=22 tile=1415 row_words=19 horizon=7895 2026-09-12T12:56:42.323093Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5 2026-09-12T12:56:42.326196Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.326233Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=3354 selected_horizon=3354 endpoint_lower_bound=3264 lower_bound_gap=90 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.327044Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6 2026-09-12T12:56:42.330238Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=1252 row_words=81 horizon=3354 2026-09-12T12:56:42.330427Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.330442Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=3526 selected_horizon=3526 endpoint_lower_bound=3456 lower_bound_gap=70 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.335566Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=1310 row_words=84 horizon=3526 2026-09-12T12:56:42.340695Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16 2026-09-12T12:56:42.351632Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9 2026-09-12T12:56:42.356580Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.356601Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5250 selected_horizon=5250 endpoint_lower_bound=5184 lower_bound_gap=66 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.361244Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=1397 row_words=120 horizon=5250 2026-09-12T12:56:42.383697Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56 2026-09-12T12:56:42.384370Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13 2026-09-12T12:56:42.391444Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4 2026-09-12T12:56:42.396528Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7 2026-09-12T12:56:42.396908Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57 2026-09-12T12:56:42.397432Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14 2026-09-12T12:56:42.398131Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.398144Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3903 selected_horizon=3903 endpoint_lower_bound=3840 lower_bound_gap=63 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.399520Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.399538Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=4104 selected_horizon=4104 endpoint_lower_bound=4032 lower_bound_gap=72 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.401030Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=1223 row_words=87 horizon=3903 2026-09-12T12:56:42.403826Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=1339 row_words=95 horizon=4104 2026-09-12T12:56:42.408745Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10 2026-09-12T12:56:42.411496Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.411510Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=5639 selected_horizon=5639 endpoint_lower_bound=5568 lower_bound_gap=71 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.416031Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=1426 row_words=131 horizon=5639 2026-09-12T12:56:42.427610Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27 2026-09-12T12:56:42.470729Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51 2026-09-12T12:56:42.475150Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=51 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.475163Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=51 initial_horizon=6774 selected_horizon=6774 endpoint_lower_bound=6720 lower_bound_gap=54 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.481306Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=51 tile=1215 row_words=225 horizon=6774 2026-09-12T12:56:42.490818Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15 2026-09-12T12:56:42.491307Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44 2026-09-12T12:56:42.492221Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8 2026-09-12T12:56:42.495600Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:42.495624Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=4677 selected_horizon=4677 endpoint_lower_bound=4608 lower_bound_gap=69 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.497400Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=44 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.497417Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=6299 selected_horizon=6299 endpoint_lower_bound=6240 lower_bound_gap=59 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.499897Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=1368 row_words=108 horizon=4677 2026-09-12T12:56:42.505562Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=44 tile=1129 row_words=164 horizon=6299 2026-09-12T12:56:42.538170Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41 2026-09-12T12:56:42.545098Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=41 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.545116Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=5387 selected_horizon=5387 endpoint_lower_bound=5280 lower_bound_gap=107 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.550546Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28 2026-09-12T12:56:42.551384Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52 2026-09-12T12:56:42.552801Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=41 tile=1285 row_words=144 horizon=5387 2026-09-12T12:56:42.556279Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=52 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.556291Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=6787 selected_horizon=6787 endpoint_lower_bound=6720 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.562603Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=52 tile=1231 row_words=224 horizon=6787 2026-09-12T12:56:42.570430Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48 2026-09-12T12:56:42.578062Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=48 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.578093Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=6637 selected_horizon=6637 endpoint_lower_bound=6560 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.590726Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34 2026-09-12T12:56:42.592940Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=48 tile=1178 row_words=205 horizon=6637 2026-09-12T12:56:42.642781Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53 2026-09-12T12:56:42.648049Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=53 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.648065Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=53 initial_horizon=6804 selected_horizon=6804 endpoint_lower_bound=6720 lower_bound_gap=84 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.654480Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=53 tile=1244 row_words=224 horizon=6804 2026-09-12T12:56:42.674917Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29 2026-09-12T12:56:42.706420Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46 2026-09-12T12:56:42.710117Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45 2026-09-12T12:56:42.711002Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49 2026-09-12T12:56:42.714090Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=46 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.714115Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.717053Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=45 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.717073Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=6620 selected_horizon=6620 endpoint_lower_bound=6560 lower_bound_gap=60 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.717872Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=49 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.717891Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=49 initial_horizon=6647 selected_horizon=6647 endpoint_lower_bound=6560 lower_bound_gap=87 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.723193Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=46 tile=1151 row_words=185 horizon=6620 2026-09-12T12:56:42.725367Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=45 tile=933 row_words=175 horizon=6620 2026-09-12T12:56:42.727267Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=49 tile=1194 row_words=226 horizon=6647 2026-09-12T12:56:42.739012Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35 2026-09-12T12:56:42.746193Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42 2026-09-12T12:56:42.752727Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=42 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.752746Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=5667 selected_horizon=5667 endpoint_lower_bound=5600 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.760457Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=42 tile=1103 row_words=144 horizon=5667 2026-09-12T12:56:42.799958Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30 2026-09-12T12:56:42.826116Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47 2026-09-12T12:56:42.826551Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32 2026-09-12T12:56:42.833617Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=47 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.833633Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=47 initial_horizon=6630 selected_horizon=6630 endpoint_lower_bound=6560 lower_bound_gap=70 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.842594Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50 2026-09-12T12:56:42.842626Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=47 tile=1167 row_words=195 horizon=6630 2026-09-12T12:56:42.848906Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36 2026-09-12T12:56:42.850418Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=50 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.850447Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=50 initial_horizon=6772 selected_horizon=6772 endpoint_lower_bound=6720 lower_bound_gap=52 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.856979Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25 2026-09-12T12:56:42.865821Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=50 tile=1202 row_words=225 horizon=6772 2026-09-12T12:56:42.880974Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=83 2026-09-12T12:56:42.929071Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31 2026-09-12T12:56:42.957128Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43 2026-09-12T12:56:42.964360Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=43 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:42.964380Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=43 initial_horizon=5978 selected_horizon=5978 endpoint_lower_bound=5920 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:42.972095Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=43 tile=1116 row_words=155 horizon=5978 2026-09-12T12:56:43.069849Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39 2026-09-12T12:56:43.078428Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=19328 maximum_identical_destinations=1 2026-09-12T12:56:43.078450Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=6337 selected_horizon=6337 endpoint_lower_bound=6240 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.090740Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=1051 row_words=215 horizon=6337 2026-09-12T12:56:43.207419Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37 2026-09-12T12:56:43.217643Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=37 transfers=18451 maximum_identical_destinations=1 2026-09-12T12:56:43.217678Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=2480 selected_horizon=2480 endpoint_lower_bound=1024 lower_bound_gap=1456 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.228262Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=37 tile=50 row_words=124 horizon=2480 2026-09-12T12:56:43.290508Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40 2026-09-12T12:56:43.297104Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=40 transfers=14720 maximum_identical_destinations=1 2026-09-12T12:56:43.297133Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=5858 selected_horizon=5858 endpoint_lower_bound=5760 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.304786Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=40 tile=1272 row_words=154 horizon=5858 2026-09-12T12:56:43.517129Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54 2026-09-12T12:56:43.546753Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=54 transfers=73814 maximum_identical_destinations=1 2026-09-12T12:56:43.546779Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=54 initial_horizon=1309 selected_horizon=1309 endpoint_lower_bound=1024 lower_bound_gap=285 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.582946Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=54 tile=171 row_words=181 horizon=1309 2026-09-12T12:56:43.653074Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11 2026-09-12T12:56:43.691763Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=73796 maximum_identical_destinations=1 2026-09-12T12:56:43.691794Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=1276 selected_horizon=1276 endpoint_lower_bound=1024 lower_bound_gap=252 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.747834Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=263 row_words=317 horizon=1276 2026-09-12T12:56:43.782265Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12 2026-09-12T12:56:43.783074Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=12 transfers=2031 maximum_identical_destinations=1 2026-09-12T12:56:43.783085Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=512 lower_bound_gap=136 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.785270Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=12 tile=550 row_words=14 horizon=648 2026-09-12T12:56:43.798896Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=97 2026-09-12T12:56:43.892369Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=38130 maximum_identical_destinations=1 2026-09-12T12:56:43.892410Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=2163 selected_horizon=2163 endpoint_lower_bound=896 lower_bound_gap=1267 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:43.909456Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=90 row_words=243 horizon=2163 2026-09-12T12:56:43.921529Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=98 transfers=8180 maximum_identical_destinations=1 2026-09-12T12:56:43.921554Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=98 initial_horizon=1184 selected_horizon=1184 endpoint_lower_bound=768 lower_bound_gap=416 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:43.928192Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=98 tile=1095 row_words=30 horizon=1184 2026-09-12T12:56:43.943379Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=99 2026-09-12T12:56:43.943892Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=99 transfers=1330 maximum_identical_destinations=1 2026-09-12T12:56:43.943903Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=99 initial_horizon=742 selected_horizon=742 endpoint_lower_bound=640 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.945259Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=99 tile=105 row_words=15 horizon=742 2026-09-12T12:56:43.964142Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=100 2026-09-12T12:56:43.964883Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=100 transfers=1535 maximum_identical_destinations=1 2026-09-12T12:56:43.964909Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=100 initial_horizon=204 selected_horizon=204 endpoint_lower_bound=64 lower_bound_gap=140 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.966851Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=100 tile=80 row_words=21 horizon=204 2026-09-12T12:56:43.977612Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=101 2026-09-12T12:56:43.978029Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=101 transfers=1023 maximum_identical_destinations=1 2026-09-12T12:56:43.978038Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=101 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4092 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:43.979320Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=101 tile=0 row_words=1028 horizon=4150 2026-09-12T12:56:43.993569Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=102 2026-09-12T12:56:44.024323Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2 2026-09-12T12:56:44.027309Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=103 transfers=1578 maximum_identical_destinations=1 2026-09-12T12:56:44.027328Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=103 initial_horizon=984 selected_horizon=984 endpoint_lower_bound=768 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.028140Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=7424 maximum_identical_destinations=1 2026-09-12T12:56:44.028157Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=5094 selected_horizon=5094 endpoint_lower_bound=4992 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:44.030005Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=103 tile=1339 row_words=14 horizon=984 2026-09-12T12:56:44.032984Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=1165 row_words=135 horizon=5094 2026-09-12T12:56:44.044372Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=104 2026-09-12T12:56:44.044855Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=104 transfers=1344 maximum_identical_destinations=1 2026-09-12T12:56:44.044867Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=104 initial_horizon=774 selected_horizon=774 endpoint_lower_bound=672 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:44.046338Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=104 tile=13 row_words=27 horizon=774 2026-09-12T12:56:44.055011Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=105 2026-09-12T12:56:44.062792Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=106 2026-09-12T12:56:44.073163Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=107 2026-09-12T12:56:44.094769Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=108 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:56:44.094793Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=108 initial_horizon=648 selected_horizon=648 endpoint_lower_bound=256 lower_bound_gap=392 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.096565Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=108 tile=882 row_words=10 horizon=648 2026-09-12T12:56:44.105751Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=109 2026-09-12T12:56:44.109811Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=110 2026-09-12T12:56:44.126477Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=76 2026-09-12T12:56:44.127019Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=76 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:44.127034Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=76 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:44.127116Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=18 transfers=2398 maximum_identical_destinations=1 2026-09-12T12:56:44.127135Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=18740 selected_horizon=18740 endpoint_lower_bound=9856 lower_bound_gap=8884 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.128814Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=76 tile=1143 row_words=23 horizon=7125 2026-09-12T12:56:44.137129Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=18 tile=64 row_words=58 horizon=18740 2026-09-12T12:56:44.166199Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19 2026-09-12T12:56:44.167360Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=19 transfers=2790 maximum_identical_destinations=1 2026-09-12T12:56:44.167378Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=7863 selected_horizon=7863 endpoint_lower_bound=7680 lower_bound_gap=183 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:44.170574Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=19 tile=965 row_words=25 horizon=7863 2026-09-12T12:56:44.206246Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=79 2026-09-12T12:56:44.232914Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=80 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:56:44.232948Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=80 initial_horizon=470 selected_horizon=470 endpoint_lower_bound=256 lower_bound_gap=214 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.235419Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=80 tile=882 row_words=10 horizon=470 2026-09-12T12:56:44.249882Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=81 2026-09-12T12:56:44.264573Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=82 2026-09-12T12:56:44.275755Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=78 2026-09-12T12:56:44.287440Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61 2026-09-12T12:56:44.345570Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=90 transfers=1020 maximum_identical_destinations=1 2026-09-12T12:56:44.345608Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=90 initial_horizon=470 selected_horizon=470 endpoint_lower_bound=256 lower_bound_gap=214 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.347451Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=90 tile=882 row_words=10 horizon=470 2026-09-12T12:56:44.356620Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=91 2026-09-12T12:56:44.366649Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=92 2026-09-12T12:56:44.376820Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=93 2026-09-12T12:56:44.380275Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=94 2026-09-12T12:56:44.387680Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=95 2026-09-12T12:56:44.389597Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=96 2026-09-12T12:56:44.392582Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=86 2026-09-12T12:56:44.395794Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=87 2026-09-12T12:56:44.397275Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=88 2026-09-12T12:56:44.406959Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=89 2026-09-12T12:56:44.481779Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=63 transfers=2395 maximum_identical_destinations=1 2026-09-12T12:56:44.481809Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=63 initial_horizon=9508 selected_horizon=9508 endpoint_lower_bound=5376 lower_bound_gap=4132 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:44.490119Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=63 tile=208 row_words=33 horizon=9508 2026-09-12T12:56:44.768356Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=84 2026-09-12T12:56:44.821658Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=84 transfers=82504 maximum_identical_destinations=1 2026-09-12T12:56:44.821689Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=84 initial_horizon=9256 selected_horizon=9256 endpoint_lower_bound=5632 lower_bound_gap=3624 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:44.910473Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=84 tile=62 row_words=1502 horizon=9256 2026-09-12T12:56:44.934380Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=85 2026-09-12T12:56:45.034708Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=67 2026-09-12T12:56:45.048814Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=68 2026-09-12T12:56:45.056792Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=66 2026-09-12T12:56:45.072215Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=72 2026-09-12T12:56:45.072757Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=72 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:45.072774Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=72 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.074619Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=72 tile=1342 row_words=22 horizon=7129 2026-09-12T12:56:45.083437Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=64 2026-09-12T12:56:45.089236Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=73 2026-09-12T12:56:45.089734Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=73 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:45.089744Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=73 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.091507Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=73 tile=967 row_words=23 horizon=7125 2026-09-12T12:56:45.106056Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=74 2026-09-12T12:56:45.106606Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=74 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:45.106617Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=74 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.108380Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=74 tile=1239 row_words=23 horizon=7125 2026-09-12T12:56:45.114084Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=64 transfers=66960 maximum_identical_destinations=1 2026-09-12T12:56:45.114104Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=64 initial_horizon=10992 selected_horizon=10992 endpoint_lower_bound=9600 lower_bound_gap=1392 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.123058Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=75 2026-09-12T12:56:45.123590Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=75 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:45.123601Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=75 initial_horizon=7125 selected_horizon=7125 endpoint_lower_bound=6912 lower_bound_gap=213 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.125346Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=75 tile=1255 row_words=23 horizon=7125 2026-09-12T12:56:45.150517Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=70 2026-09-12T12:56:45.152177Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=70 transfers=2728 maximum_identical_destinations=1 2026-09-12T12:56:45.152238Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=70 initial_horizon=7117 selected_horizon=7117 endpoint_lower_bound=6912 lower_bound_gap=205 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.156415Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=70 tile=773 row_words=30 horizon=7117 2026-09-12T12:56:45.171466Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=64 tile=672 row_words=276 horizon=10992 2026-09-12T12:56:45.176485Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=71 2026-09-12T12:56:45.177063Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=71 transfers=1408 maximum_identical_destinations=1 2026-09-12T12:56:45.177076Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=71 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6912 lower_bound_gap=217 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:45.178878Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=71 tile=1326 row_words=23 horizon=7129 2026-09-12T12:56:46.087224Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=65 2026-09-12T12:56:46.126709Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=65 transfers=73800 maximum_identical_destinations=1 2026-09-12T12:56:46.126738Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=65 initial_horizon=1470 selected_horizon=1470 endpoint_lower_bound=1024 lower_bound_gap=446 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:46.189746Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=65 tile=722 row_words=272 horizon=1470 2026-09-12T12:56:46.262826Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3 2026-09-12T12:56:46.269601Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=6784 maximum_identical_destinations=1 2026-09-12T12:56:46.269627Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=4509 selected_horizon=4509 endpoint_lower_bound=4416 lower_bound_gap=93 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:46.274261Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=1194 row_words=99 horizon=4509 2026-09-12T12:56:46.850309Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26 2026-09-12T12:56:46.944025Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=26 transfers=166035 maximum_identical_destinations=1 2026-09-12T12:56:46.944066Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=3553 selected_horizon=3553 endpoint_lower_bound=3072 lower_bound_gap=481 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:47.174109Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=26 tile=58 row_words=732 horizon=3553 2026-09-12T12:56:47.299608Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33 2026-09-12T12:56:47.534024Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24 2026-09-12T12:56:47.661619Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=24 transfers=221370 maximum_identical_destinations=1 2026-09-12T12:56:47.661668Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=3921 selected_horizon=3921 endpoint_lower_bound=3072 lower_bound_gap=849 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:47.891476Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=24 tile=117 row_words=637 horizon=3921 2026-09-12T12:56:48.645168Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60 2026-09-12T12:56:48.767498Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=60 transfers=295194 maximum_identical_destinations=1 2026-09-12T12:56:48.767534Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=60 initial_horizon=4819 selected_horizon=4819 endpoint_lower_bound=4096 lower_bound_gap=723 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:49.015575Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=60 tile=85 row_words=830 horizon=4819 2026-09-12T12:56:49.433256Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17 2026-09-12T12:56:49.591557Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=36928 maximum_identical_destinations=1 2026-09-12T12:56:49.591600Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=6608 selected_horizon=6608 endpoint_lower_bound=3840 lower_bound_gap=2768 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:49.705282Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=17 tile=20 row_words=1178 horizon=6608 2026-09-12T12:56:50.009598Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=69 2026-09-12T12:56:50.029695Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=77 2026-09-12T12:56:50.135697Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=77 transfers=147594 maximum_identical_destinations=1 2026-09-12T12:56:50.135738Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=77 initial_horizon=2729 selected_horizon=2729 endpoint_lower_bound=2048 lower_bound_gap=681 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:50.173700Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=69 transfers=39101 maximum_identical_destinations=1 2026-09-12T12:56:50.173739Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=69 initial_horizon=16842 selected_horizon=16842 endpoint_lower_bound=7552 lower_bound_gap=9290 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:50.292538Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=69 tile=20 row_words=1075 horizon=16842 2026-09-12T12:56:50.295734Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=77 tile=81 row_words=552 horizon=2729 2026-09-12T12:56:50.417718Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0 2026-09-12T12:56:50.605105Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=21926 maximum_identical_destinations=1 2026-09-12T12:56:50.605149Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=8534 selected_horizon=8534 endpoint_lower_bound=3712 lower_bound_gap=4822 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:56:50.728896Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=86 row_words=1175 horizon=8534 2026-09-12T12:56:55.302093Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=38 transfers=38158 maximum_identical_destinations=1 2026-09-12T12:56:55.302155Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=9077 selected_horizon=9077 endpoint_lower_bound=3968 lower_bound_gap=5109 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:56:55.405272Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=38 tile=5 row_words=883 horizon=9077 2026-09-12T12:57:10.958100Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=58 transfers=45375 maximum_identical_destinations=1 2026-09-12T12:57:10.958147Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=58 initial_horizon=25300 selected_horizon=25300 endpoint_lower_bound=15104 lower_bound_gap=10196 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-12T12:57:11.231167Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=58 tile=372 row_words=2087 horizon=25300 2026-09-12T12:57:11.355104Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59 2026-09-12T12:57:11.358181Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=59 transfers=5874 maximum_identical_destinations=1 2026-09-12T12:57:11.358216Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=8746 selected_horizon=8746 endpoint_lower_bound=6912 lower_bound_gap=1834 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:57:11.364951Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=59 tile=1041 row_words=40 horizon=8746 2026-09-12T12:57:13.951636Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62 2026-09-12T12:57:14.730859Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=62 transfers=147712 maximum_identical_destinations=1 2026-09-12T12:57:14.730927Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=15937 selected_horizon=15937 endpoint_lower_bound=14112 lower_bound_gap=1825 selected_kind="reused" neighborhood_improvements=0 2026-09-12T12:57:15.296690Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=62 tile=270 row_words=4194 horizon=15937 2026-09-12T12:57:15.408971Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=33132 success=true 2026-09-12T12:57:19.175316Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=675591 2026-09-12T12:57:21.019141Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=622796 2026-09-12T12:57:22.885324Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=654302 2026-09-12T12:57:24.698056Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=641060 2026-09-12T12:57:26.658099Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=667428 2026-09-12T12:57:28.481250Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=617562 2026-09-12T12:57:30.253959Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: placed tile storage tiles=1472 shards=423999 elapsed_us=612131 2026-09-12T12:57:31.675404Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=16266 success=true 2026-09-12T12:57:31.712116Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=19728592 final_exchange=8408371 2026-09-12T12:57:34.313433Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=333 success=true 2026-09-12T12:57:34.479788Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=166 success=true 2026-09-12T12:57:35.191422Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=625 success=true 2026-09-12T12:57:35.635423Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: validated canonical baseline cycles=19728592 2026-09-12T12:57:36.076500Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=138806 success=true 2026-09-12T12:57:38.435834Z INFO ipu_codegen.package.build{tile_count=1472 operations=26}: wrote exact tile placement profile path=artifacts/capacity-baseline-20260912/pe-b2-final/memory/placement-454231.html 2026-09-12T12:57:39.211448Z INFO writing application package tiles=1472 2026-09-12T12:57:39.302699Z INFO application package written 2026-09-12T12:57:39.303479Z INFO reading application package 2026-09-12T12:57:39.550633Z INFO application package read tiles=1472 compiler=0.1.0 2026-09-12T12:57:39.551300Z INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock 2026-09-12T12:57:39.551315Z INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock 2026-09-12T12:57:39.551320Z INFO opening IPU device path="/dev/ipu0" 2026-09-12T12:57:39.551347Z INFO IPU device attached path=/dev/ipu0 2026-09-12T12:57:39.551352Z INFO initializing IPU device 2026-09-12T12:57:39.559482Z INFO IPU device initialized 2026-09-12T12:57:39.559495Z INFO replaying device configuration register_writes=2003 2026-09-12T12:57:39.581656Z INFO loading application tile_count=1472 final_mark=23 2026-09-12T12:57:39.843533Z INFO application loaded and initial synchronization completed tile_count=1472 2026-09-12T12:57:42.623069Z INFO prepared reference inputs elapsed_ms=2778 2026-09-12T12:57:42.623642Z INFO configured host reference BLAS threads=4 referencePrecision=fp32 2026-09-12T12:58:17.081098Z INFO evaluated host reference elapsed_ms=34457 2026-09-12T12:58:17.083814Z INFO starting host exchange session startup_mark=23 2026-09-12T12:58:17.083865Z INFO attaching host exchange pages pages=2 2026-09-12T12:58:17.084600Z INFO host exchange session started 2026-09-12T12:58:17.085530Z INFO invoking streaming host exchange call call="initialize" command=0 phases=306 2026-09-12T12:58:17.219701Z INFO invoking streaming host exchange call call="run" command=0 phases=3 referenceMinimumCosineSimilarity=0.993717251 referenceInference=1 numericalTest=PASS 2026-09-12T12:58:17.234383Z INFO invoking streaming host exchange call call="run" command=0 phases=3 referenceMinimumCosineSimilarity=0.993717251 referenceInference=2 numericalTest=PASS referenceMaximumAbsoluteError=0.397096 numericalTest=PASS package=artifacts/capacity-baseline-20260912/pe-b2-final/model.ipuexe tiles=1472 hardwareTest=PASS