2026-09-09T11:29:30.794395Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-09T11:29:46.482736Z  INFO retained operator-plan finalist finalist=0 values=19 operations=1 estimated_cycles=1006101 estimated_exchange_cycles=349176 exchange_row_bytes=22132 peak_standard_bytes=88692 peak_interleaved_bytes=271360 peak_total_bytes=341876 maximum_standard_allocation_bytes=62720 active_tile_counts={1472} padding_group_counts={} conversion_sources=[]
2026-09-09T11:29:46.526544Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=15732 success=true
2026-09-09T11:29:47.699887Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:screen_finalist{finalist=0}: screened exchange table geometry expansion_ms=793 expansion_and_footprint_ms=1173 estimated_row_bytes=17888 heuristic_row_bytes=22132 geometry_fragments_per_tile=1984 fragment_limit=16384
2026-09-09T11:29:47.701649Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: expanded fragment cache cache_stats=(421, 4496, 421) plan_cache_stats=(967, 2692, 967)
2026-09-09T11:29:47.701670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: bounded finalist shortlist stage="placement" candidates=1 admitted_candidates=1
2026-09-09T11:29:48.646622Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: screened tile mappings by exchange resource load candidates=42 baseline_cycles=177408 candidate_cycles=177408 baseline_pressure=159345 candidate_pressure=159345
2026-09-09T11:29:48.648121Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: modelled expanded operator plan finalist=0 elapsed_ms=946 modelled_cycles=802656 estimated_row_bytes=17888
2026-09-09T11:29:48.648156Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: bounded finalist shortlist stage="scheduling" candidates=1 admitted_candidates=1
2026-09-09T11:29:49.532049Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: retrying exchange schedule with incremental instruction-alignment validation transfers=18174
2026-09-09T11:29:49.838695Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: retrying exchange schedule with incremental instruction-alignment validation transfers=104904
2026-09-09T11:29:50.765873Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished incremental instruction-alignment validation transfers=18174 elapsed_ms=1233 success=true
2026-09-09T11:29:51.040520Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: retrying exchange schedule with incremental instruction-alignment validation transfers=168932
2026-09-09T11:29:51.509604Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished incremental instruction-alignment validation transfers=104904 elapsed_ms=1670 success=true
2026-09-09T11:29:51.661987Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=2 transfers=18174 maximum_identical_destinations=1
2026-09-09T11:29:51.662032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=2 initial_horizon=28508 selected_horizon=28508 endpoint_lower_bound=15744 lower_bound_gap=12764 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:29:51.692141Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=2 tile=547 row_words=522 horizon=28508
2026-09-09T11:29:53.861480Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=4 transfers=104904 maximum_identical_destinations=1
2026-09-09T11:29:53.861529Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=4 initial_horizon=3959 selected_horizon=3959 endpoint_lower_bound=1152 lower_bound_gap=2807 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:29:53.909042Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=4 tile=254 row_words=400 horizon=3959
2026-09-09T11:29:54.287093Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished incremental instruction-alignment validation transfers=168932 elapsed_ms=3246 success=true
2026-09-09T11:29:55.738361Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: retrying exchange schedule with incremental instruction-alignment validation transfers=9072
2026-09-09T11:29:58.775232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished incremental instruction-alignment validation transfers=9072 elapsed_ms=3036 success=true
2026-09-09T11:29:58.833073Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=168932 maximum_identical_destinations=1
2026-09-09T11:29:58.833122Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=1 initial_horizon=18398 selected_horizon=18398 endpoint_lower_bound=13440 lower_bound_gap=4958 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:29:58.997917Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=304 row_words=647 horizon=18398
2026-09-09T11:29:59.956036Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=0 transfers=9072 maximum_identical_destinations=1
2026-09-09T11:29:59.956092Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=0 initial_horizon=20430 selected_horizon=20430 endpoint_lower_bound=15552 lower_bound_gap=4878 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:29:59.991768Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=0 tile=415 row_words=486 horizon=20430
2026-09-09T11:30:01.286906Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: retrying exchange schedule with incremental instruction-alignment validation transfers=586368
2026-09-09T11:30:19.297752Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished incremental instruction-alignment validation transfers=586368 elapsed_ms=18010 success=true
2026-09-09T11:30:34.949303Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=586368 maximum_identical_destinations=1
2026-09-09T11:30:34.949381Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=3 initial_horizon=36105 selected_horizon=36105 endpoint_lower_bound=13248 lower_bound_gap=22857 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:30:35.909753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=1098 row_words=2057 horizon=36105
2026-09-09T11:30:36.063980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=0 mapped=false analytical_cycles=1401528 analytical_exchange_cycles=785280 scheduled_exchange_cycles=331200 refined_cycles=947448
2026-09-09T11:30:36.161608Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=4 success=true
2026-09-09T11:30:36.162307Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=0 success=true
2026-09-09T11:30:36.163393Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-09T11:30:36.399635Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=8 success=true
2026-09-09T11:30:36.399680Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: allocated package support memory linked_end=321248 profile_bytes=176 exchange_table_bytes=14268 host_code_bytes=1900 generated_code_bytes=2224 code_address=323216 standard_ranges=[(409600, 524288)]
2026-09-09T11:30:36.460909Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=61 success=true
2026-09-09T11:30:38.171555Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-09T11:30:38.206953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=18174 maximum_identical_destinations=1
2026-09-09T11:30:38.206985Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=28508 selected_horizon=28508 endpoint_lower_bound=15744 lower_bound_gap=12764 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:30:38.234094Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=547 row_words=522 horizon=28508
2026-09-09T11:30:38.734440Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-09T11:30:38.780014Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=104904 maximum_identical_destinations=1
2026-09-09T11:30:38.780044Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3959 selected_horizon=3959 endpoint_lower_bound=1152 lower_bound_gap=2807 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:30:38.830982Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=254 row_words=400 horizon=3959
2026-09-09T11:30:39.844027Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-09T11:30:39.896008Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=168932 maximum_identical_destinations=1
2026-09-09T11:30:39.896042Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=18398 selected_horizon=18398 endpoint_lower_bound=13440 lower_bound_gap=4958 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:30:39.992683Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=304 row_words=647 horizon=18398
2026-09-09T11:30:41.606863Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: retrying exchange schedule with incremental instruction-alignment validation transfers=9072
2026-09-09T11:30:44.883761Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished incremental instruction-alignment validation transfers=9072 elapsed_ms=3276 success=true
2026-09-09T11:30:46.177455Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=9072 maximum_identical_destinations=1
2026-09-09T11:30:46.177516Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=21082 selected_horizon=21082 endpoint_lower_bound=15552 lower_bound_gap=5530 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:30:46.226910Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=323 row_words=498 horizon=21082
2026-09-09T11:30:56.790766Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-09T11:30:57.093563Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=586368 maximum_identical_destinations=1
2026-09-09T11:30:57.093707Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=36105 selected_horizon=36105 endpoint_lower_bound=13248 lower_bound_gap=22857 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:30:58.047487Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=1098 row_words=2057 horizon=36105
2026-09-09T11:30:58.173091Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=21712 success=true
2026-09-09T11:31:02.468747Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=4
2026-09-09T11:31:02.530680Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=4 transfers=104904 maximum_identical_destinations=1
2026-09-09T11:31:02.530729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=4 initial_horizon=3959 selected_horizon=3959 endpoint_lower_bound=1152 lower_bound_gap=2807 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:31:02.579645Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=4 tile=254 row_words=400 horizon=3959
2026-09-09T11:31:04.840768Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: retrying exchange schedule with incremental instruction-alignment validation transfers=18174
2026-09-09T11:31:05.775095Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=0
2026-09-09T11:31:05.832562Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=0 transfers=9072 maximum_identical_destinations=1
2026-09-09T11:31:05.832597Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=0 initial_horizon=21082 selected_horizon=21082 endpoint_lower_bound=15552 lower_bound_gap=5530 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:31:05.866327Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=0 tile=323 row_words=498 horizon=21082
2026-09-09T11:31:06.091339Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished incremental instruction-alignment validation transfers=18174 elapsed_ms=1250 success=true
2026-09-09T11:31:06.855553Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=1
2026-09-09T11:31:06.940856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=1 transfers=168932 maximum_identical_destinations=1
2026-09-09T11:31:06.940897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=1 initial_horizon=18398 selected_horizon=18398 endpoint_lower_bound=13440 lower_bound_gap=4958 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:31:07.019313Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=2 transfers=18174 maximum_identical_destinations=1
2026-09-09T11:31:07.019356Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=2 initial_horizon=25270 selected_horizon=25270 endpoint_lower_bound=15744 lower_bound_gap=9526 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-09T11:31:07.051813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=2 tile=547 row_words=521 horizon=25270
2026-09-09T11:31:07.093787Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=1 tile=304 row_words=647 horizon=18398
2026-09-09T11:31:20.174474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=3
2026-09-09T11:31:20.471808Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=3 transfers=586368 maximum_identical_destinations=1
2026-09-09T11:31:20.471862Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=3 initial_horizon=36105 selected_horizon=36105 endpoint_lower_bound=13248 lower_bound_gap=22857 selected_kind="reused" neighborhood_improvements=0
2026-09-09T11:31:21.451556Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=3 tile=1098 row_words=2057 horizon=36105
2026-09-09T11:31:21.612448Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: evaluated exchange placement finalist offset=20480 baseline_score=197328863232 score=168428077056 baseline_cycles=324156 candidate_cycles=314442 row_bytes=14284 row_capacity=16320 accepted=true
2026-09-09T11:31:21.756271Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=23583 success=true
2026-09-09T11:31:21.760414Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: costed final placed program final_cycles=939690 final_exchange=323442
2026-09-09T11:31:21.897824Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=17 success=true
2026-09-09T11:31:21.925178Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=27 success=true
2026-09-09T11:31:22.056282Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=120 success=true
2026-09-09T11:31:22.073962Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=0 mapped=false
2026-09-09T11:31:22.149971Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=111355 success=true
2026-09-09T11:31:22.218699Z  INFO writing application package tiles=1472
2026-09-09T11:31:22.305788Z  INFO application package written
2026-09-09T11:31:22.306107Z  INFO reading application package
2026-09-09T11:31:22.441870Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-09T11:31:22.442383Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-09T11:31:22.442404Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-09T11:31:22.442417Z  INFO opening IPU device path="/dev/ipu0"
2026-09-09T11:31:22.442457Z  INFO IPU device attached path=/dev/ipu0
2026-09-09T11:31:22.442460Z  INFO initializing IPU device
2026-09-09T11:31:22.450782Z  INFO IPU device initialized
2026-09-09T11:31:22.450791Z  INFO replaying device configuration register_writes=2003
2026-09-09T11:31:22.456732Z  INFO loading application tile_count=1472 final_mark=23
2026-09-09T11:31:22.737794Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-09T11:31:30.472912Z  INFO starting host exchange session startup_mark=23
2026-09-09T11:31:30.472962Z  INFO attaching host exchange pages pages=2
2026-09-09T11:31:30.473612Z  INFO host exchange session started
2026-09-09T11:31:30.473684Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=48
2026-09-09T11:31:30.490873Z  INFO invoking streaming host exchange call call="run" command=0 phases=9
profile=artifacts/fragment-cache-20260909/hardware/profile.ipuprof tiles=1472 samples=31596
referenceMaximumAbsoluteError=0.015625 numericalTest=PASS
package=artifacts/fragment-cache-20260909/hardware/model.ipuexe tiles=1472 hardwareTest=PASS