2026-09-07T10:33:11.771407Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=283418 estimated_exchange_cycles=124960 exchange_row_bytes=26020 peak_standard_bytes=333220 peak_interleaved_bytes=52480 peak_total_bytes=378276 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-07T10:33:11.791725Z  INFO retained operator-plan finalist finalist=1 values=13 operations=9 estimated_cycles=379841 estimated_exchange_cycles=109840 exchange_row_bytes=22880 peak_standard_bytes=268640 peak_interleaved_bytes=180224 peak_total_bytes=448864 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1380, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(2))]
2026-09-07T10:33:11.812519Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=404203 estimated_exchange_cycles=126240 exchange_row_bytes=26308 peak_standard_bytes=164804 peak_interleaved_bytes=52864 peak_total_bytes=201476 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 480, 1472} padding_group_counts={16} conversion_sources=[]
2026-09-07T10:33:11.816053Z  INFO retained operator-plan finalist finalist=3 values=12 operations=8 estimated_cycles=417634 estimated_exchange_cycles=121280 exchange_row_bytes=25716 peak_standard_bytes=107636 peak_interleaved_bytes=327680 peak_total_bytes=435316 maximum_standard_allocation_bytes=49152 active_tile_counts={192, 480, 1440, 1472} padding_group_counts={16} conversion_sources=[Some(OperationId(2))]
2026-09-07T10:33:14.468263Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=283418 estimated_exchange_cycles=124960 exchange_row_bytes=26020 peak_standard_bytes=333220 peak_interleaved_bytes=52480 peak_total_bytes=378276 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-07T10:33:14.483902Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=283418 estimated_exchange_cycles=124960 exchange_row_bytes=26020 peak_standard_bytes=320932 peak_interleaved_bytes=61056 peak_total_bytes=378276 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-07T10:33:14.496990Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=288440 estimated_exchange_cycles=132160 exchange_row_bytes=27640 peak_standard_bytes=331768 peak_interleaved_bytes=51200 peak_total_bytes=373752 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 368, 1472} padding_group_counts={} conversion_sources=[]
2026-09-07T10:33:14.511100Z  INFO retained operator-plan finalist finalist=3 values=11 operations=7 estimated_cycles=389292 estimated_exchange_cycles=206720 exchange_row_bytes=44416 peak_standard_bytes=219520 peak_interleaved_bytes=60416 peak_total_bytes=260480 maximum_standard_allocation_bytes=65536 active_tile_counts={192, 207, 1472} padding_group_counts={} conversion_sources=[]
2026-09-07T10:33:14.635248Z  INFO ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=6280 success=true
2026-09-07T10:33:40.340055Z  INFO screened tile mappings by exchange resource load candidates=102 baseline_cycles=82496 candidate_cycles=80336 baseline_pressure=52010 candidate_pressure=50964
2026-09-07T10:33:40.535193Z  INFO modelled expanded operator plan finalist=10 modelled_cycles=306917 estimated_cycles=512645 estimated_exchange_cycles=293264
2026-09-07T10:33:40.653963Z  INFO screened tile mappings by exchange resource load candidates=102 baseline_cycles=50880 candidate_cycles=47424 baseline_pressure=34117 candidate_pressure=30661
2026-09-07T10:33:40.844601Z  INFO modelled expanded operator plan finalist=8 modelled_cycles=235015 estimated_cycles=370999 estimated_exchange_cycles=190608
2026-09-07T10:33:41.058387Z  INFO screened tile mappings by exchange resource load candidates=102 baseline_cycles=50880 candidate_cycles=47424 baseline_pressure=34258 candidate_pressure=30802
2026-09-07T10:33:41.232063Z  INFO modelled expanded operator plan finalist=9 modelled_cycles=242273 estimated_cycles=382737 estimated_exchange_cycles=195088
2026-09-07T10:33:41.289581Z  INFO screened tile mappings by exchange resource load candidates=102 baseline_cycles=82496 candidate_cycles=80336 baseline_pressure=52259 candidate_pressure=51213
2026-09-07T10:33:41.480364Z  INFO modelled expanded operator plan finalist=11 modelled_cycles=322395 estimated_cycles=535803 estimated_exchange_cycles=300944
2026-09-07T10:33:43.184373Z  INFO screened tile mappings by exchange resource load candidates=126 baseline_cycles=47488 candidate_cycles=45328 baseline_pressure=33348 candidate_pressure=32302
2026-09-07T10:33:43.311659Z  INFO modelled expanded operator plan finalist=7 modelled_cycles=229767 estimated_cycles=380743 estimated_exchange_cycles=203504
2026-09-07T10:33:43.706961Z  INFO screened tile mappings by exchange resource load candidates=126 baseline_cycles=47488 candidate_cycles=45328 baseline_pressure=33200 candidate_pressure=32154
2026-09-07T10:33:43.885439Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=231751 estimated_cycles=382727 estimated_exchange_cycles=203504
2026-09-07T10:33:44.007468Z  INFO screened tile mappings by exchange resource load candidates=126 baseline_cycles=47488 candidate_cycles=45328 baseline_pressure=33200 candidate_pressure=32154
2026-09-07T10:33:44.186958Z  INFO modelled expanded operator plan finalist=6 modelled_cycles=224119 estimated_cycles=375095 estimated_exchange_cycles=203504
2026-09-07T10:33:44.582319Z  INFO screened tile mappings by exchange resource load candidates=126 baseline_cycles=47488 candidate_cycles=45328 baseline_pressure=33348 candidate_pressure=32302
2026-09-07T10:33:44.765270Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=237399 estimated_cycles=388375 estimated_exchange_cycles=203504
2026-09-07T10:33:45.901709Z  INFO screened tile mappings by exchange resource load candidates=130 baseline_cycles=53056 candidate_cycles=50896 baseline_pressure=29225 candidate_pressure=28179
2026-09-07T10:33:46.048645Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=352720 estimated_cycles=526912 estimated_exchange_cycles=231088
2026-09-07T10:33:46.465798Z  INFO screened tile mappings by exchange resource load candidates=130 baseline_cycles=53056 candidate_cycles=50896 baseline_pressure=29077 candidate_pressure=28031
2026-09-07T10:33:46.644307Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=352368 estimated_cycles=526560 estimated_exchange_cycles=231088
2026-09-07T10:33:52.561286Z  INFO screened tile mappings by exchange resource load candidates=148 baseline_cycles=45984 candidate_cycles=44376 baseline_pressure=30133 candidate_pressure=29087
2026-09-07T10:33:52.721638Z  INFO modelled expanded operator plan finalist=5 modelled_cycles=367367 estimated_cycles=517319 estimated_exchange_cycles=199128
2026-09-07T10:34:02.822124Z  INFO screened tile mappings by exchange resource load candidates=160 baseline_cycles=47624 candidate_cycles=45464 baseline_pressure=33413 candidate_pressure=32367
2026-09-07T10:34:03.058768Z  INFO modelled expanded operator plan finalist=4 modelled_cycles=685345 estimated_cycles=1295401 estimated_exchange_cycles=662720
2026-09-07T10:34:03.983366Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:34:03.983410Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=1 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:03.984399Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=367 row_words=11 horizon=2913
2026-09-07T10:34:04.009434Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:34:04.009472Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=3 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:04.010472Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=367 row_words=11 horizon=2913
2026-09-07T10:34:04.044860Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=1288 maximum_identical_destinations=1
2026-09-07T10:34:04.044886Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=2887 selected_horizon=2887 endpoint_lower_bound=2784 lower_bound_gap=103 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:04.046430Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=919 row_words=11 horizon=2887
2026-09-07T10:34:05.116123Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-07T10:34:05.116162Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=6 initial_horizon=1702 selected_horizon=1702 endpoint_lower_bound=928 lower_bound_gap=774 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:05.131629Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=6 tile=380 row_words=125 horizon=1702
2026-09-07T10:34:36.939513Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=7 transfers=84522 maximum_identical_destinations=1
2026-09-07T10:34:36.939561Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=7 initial_horizon=12715 selected_horizon=12715 endpoint_lower_bound=9712 lower_bound_gap=3003 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:37.135930Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=7 tile=52 row_words=1099 horizon=12715
2026-09-07T10:34:42.108320Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=8 transfers=14720 maximum_identical_destinations=1
2026-09-07T10:34:42.108360Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=8 initial_horizon=3491 selected_horizon=3491 endpoint_lower_bound=2880 lower_bound_gap=611 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:42.171451Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=8 tile=551 row_words=354 horizon=3491
2026-09-07T10:34:48.278655Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=9 transfers=66880 maximum_identical_destinations=1
2026-09-07T10:34:48.278690Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=9 initial_horizon=5497 selected_horizon=5497 endpoint_lower_bound=3640 lower_bound_gap=1857 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:48.325854Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=9 tile=362 row_words=321 horizon=5497
2026-09-07T10:34:57.597518Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=10 transfers=75104 maximum_identical_destinations=1
2026-09-07T10:34:57.597560Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=10 initial_horizon=12075 selected_horizon=12075 endpoint_lower_bound=8832 lower_bound_gap=3243 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:34:57.672906Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=10 tile=355 row_words=391 horizon=12075
2026-09-07T10:35:04.108980Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=11 transfers=61520 maximum_identical_destinations=1
2026-09-07T10:35:04.109021Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=11 initial_horizon=7133 selected_horizon=7133 endpoint_lower_bound=3640 lower_bound_gap=3493 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:04.170542Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=11 tile=352 row_words=277 horizon=7133
2026-09-07T10:35:04.204407Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=6 mapped=false analytical_cycles=375095 analytical_exchange_cycles=203504 scheduled_exchange_cycles=68240 refined_cycles=239831
2026-09-07T10:35:04.271118Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:35:04.271149Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=1 initial_horizon=2890 selected_horizon=2890 endpoint_lower_bound=2784 lower_bound_gap=106 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:04.272494Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=441 row_words=13 horizon=2890
2026-09-07T10:35:04.300289Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:35:04.300309Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=3 initial_horizon=2890 selected_horizon=2890 endpoint_lower_bound=2784 lower_bound_gap=106 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:04.301633Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=441 row_words=13 horizon=2890
2026-09-07T10:35:04.328616Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=1288 maximum_identical_destinations=1
2026-09-07T10:35:04.328632Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=2887 selected_horizon=2887 endpoint_lower_bound=2784 lower_bound_gap=103 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:04.329868Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=1005 row_words=13 horizon=2887
2026-09-07T10:35:05.437266Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-07T10:35:05.437308Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=6 initial_horizon=1674 selected_horizon=1674 endpoint_lower_bound=928 lower_bound_gap=746 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:05.453223Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=6 tile=457 row_words=121 horizon=1674
2026-09-07T10:35:40.241225Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=7 transfers=84522 maximum_identical_destinations=1
2026-09-07T10:35:40.241273Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=7 initial_horizon=13936 selected_horizon=13936 endpoint_lower_bound=9712 lower_bound_gap=4224 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:40.437111Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=7 tile=416 row_words=1116 horizon=13936
2026-09-07T10:35:45.641426Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=8 transfers=14720 maximum_identical_destinations=1
2026-09-07T10:35:45.641467Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=8 initial_horizon=6005 selected_horizon=6005 endpoint_lower_bound=2880 lower_bound_gap=3125 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:45.704532Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=8 tile=300 row_words=359 horizon=6005
2026-09-07T10:35:52.712420Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=9 transfers=66880 maximum_identical_destinations=1
2026-09-07T10:35:52.712465Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=9 initial_horizon=5873 selected_horizon=5873 endpoint_lower_bound=3640 lower_bound_gap=2233 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:35:52.782116Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=9 tile=380 row_words=305 horizon=5873
2026-09-07T10:36:09.964463Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: compared ordinary and paired exchange schedules phase=10 candidates=448 ordinary_horizon=12237 paired_horizon=10368 use_paired=true
2026-09-07T10:36:10.101749Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=10 transfers=75104 maximum_identical_destinations=1
2026-09-07T10:36:10.101790Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=10 initial_horizon=10368 selected_horizon=10368 endpoint_lower_bound=6672 lower_bound_gap=3696 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:36:10.182302Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=10 tile=749 row_words=383 horizon=10368
2026-09-07T10:36:16.452732Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=11 transfers=61520 maximum_identical_destinations=1
2026-09-07T10:36:16.452767Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=11 initial_horizon=7033 selected_horizon=7033 endpoint_lower_bound=3640 lower_bound_gap=3393 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T10:36:16.493391Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=11 tile=810 row_words=275 horizon=7033
2026-09-07T10:36:16.517638Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=6 mapped=true analytical_cycles=375095 analytical_exchange_cycles=203504 scheduled_exchange_cycles=70425 refined_cycles=242016
2026-09-07T10:36:16.998023Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=6 mapped=false
2026-09-07T10:36:16.998050Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=182362 success=true
2026-09-07T10:36:16.998060Z  INFO lowered graph for package construction logical_shards=49708 exchange_phases=12
2026-09-07T10:36:17.000135Z  INFO ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=2 success=true
2026-09-07T10:36:17.002638Z  INFO ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=2 success=true
2026-09-07T10:36:17.004182Z  INFO ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=1 success=true
2026-09-07T10:36:17.005152Z  INFO ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-07T10:36:17.840118Z  INFO ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=9 success=true
2026-09-07T10:36:17.840152Z  INFO allocated package support memory linked_end=324420 profile_bytes=0 exchange_table_bytes=8712 host_code_bytes=4540 generated_code_bytes=2776 code_address=397824 standard_ranges=[(409600, 524288)]
2026-09-07T10:36:18.745966Z  INFO ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=905 success=true
2026-09-07T10:36:18.748427Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-07T10:36:18.754437Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-07T10:36:18.754888Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:36:18.754895Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:18.755575Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=367 row_words=11 horizon=2913
2026-09-07T10:36:18.757788Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-07T10:36:18.763643Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-07T10:36:18.764031Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-07T10:36:18.764037Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:18.764700Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=367 row_words=11 horizon=2913
2026-09-07T10:36:18.766939Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-07T10:36:18.772545Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-07T10:36:18.772931Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=1288 maximum_identical_destinations=1
2026-09-07T10:36:18.772937Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=2887 selected_horizon=2887 endpoint_lower_bound=2784 lower_bound_gap=103 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:18.773546Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=919 row_words=11 horizon=2887
2026-09-07T10:36:19.087134Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-07T10:36:19.092952Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-07T10:36:19.092970Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=1702 selected_horizon=1702 endpoint_lower_bound=928 lower_bound_gap=774 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:19.103049Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=380 row_words=125 horizon=1702
2026-09-07T10:36:36.143797Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-07T10:36:36.203318Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=84522 maximum_identical_destinations=1
2026-09-07T10:36:36.203340Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=12715 selected_horizon=12715 endpoint_lower_bound=9712 lower_bound_gap=3003 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:36.322119Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=52 row_words=1099 horizon=12715
2026-09-07T10:36:38.873364Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-07T10:36:38.897304Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=14720 maximum_identical_destinations=1
2026-09-07T10:36:38.897330Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=3491 selected_horizon=3491 endpoint_lower_bound=2880 lower_bound_gap=611 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:38.945757Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=551 row_words=354 horizon=3491
2026-09-07T10:36:40.919226Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-07T10:36:40.939544Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=66880 maximum_identical_destinations=1
2026-09-07T10:36:40.939562Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5497 selected_horizon=5497 endpoint_lower_bound=3640 lower_bound_gap=1857 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:40.979918Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=362 row_words=321 horizon=5497
2026-09-07T10:36:44.171930Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-07T10:36:44.198694Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=75104 maximum_identical_destinations=1
2026-09-07T10:36:44.198713Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=12075 selected_horizon=12075 endpoint_lower_bound=8832 lower_bound_gap=3243 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:44.246357Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=355 row_words=391 horizon=12075
2026-09-07T10:36:46.148123Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-07T10:36:46.169012Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=61520 maximum_identical_destinations=1
2026-09-07T10:36:46.169030Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=7133 selected_horizon=7133 endpoint_lower_bound=3640 lower_bound_gap=3493 selected_kind="reused" neighborhood_improvements=0
2026-09-07T10:36:46.205517Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=352 row_words=277 horizon=7133
2026-09-07T10:36:46.217705Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=27471 success=true
2026-09-07T10:36:53.494547Z  INFO ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=7276 success=true
2026-09-07T10:36:53.499445Z  INFO costed final placed program final_cycles=239831 final_exchange=68240
2026-09-07T10:36:53.919422Z  INFO ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=17 success=true
2026-09-07T10:36:53.934064Z  INFO ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=14 success=true
2026-09-07T10:36:54.055398Z  INFO ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=115 success=true
2026-09-07T10:36:54.153992Z  INFO writing application package tiles=1472
2026-09-07T10:36:54.179303Z  INFO application package written
2026-09-07T10:36:54.179888Z  INFO reading application package
2026-09-07T10:36:54.233069Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-07T10:36:54.234523Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T10:36:54.234534Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T10:36:54.234542Z  INFO opening IPU device path="/dev/ipu0"
2026-09-07T10:36:54.234567Z  INFO IPU device attached path=/dev/ipu0
2026-09-07T10:36:54.234571Z  INFO initializing IPU device
2026-09-07T10:36:54.242517Z  INFO IPU device initialized
2026-09-07T10:36:54.242542Z  INFO replaying device configuration register_writes=2003
2026-09-07T10:36:54.254110Z  INFO loading application tile_count=1472 final_mark=23
2026-09-07T10:36:54.478096Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-07T10:37:04.213816Z  INFO starting host exchange session startup_mark=23
2026-09-07T10:37:04.213848Z  INFO attaching host exchange pages pages=2
2026-09-07T10:37:04.214528Z  INFO host exchange session started
2026-09-07T10:37:04.215609Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=132
2026-09-07T10:37:04.288460Z  INFO invoking streaming host exchange call call="run" command=0 phases=7
checkpoint=0 operation=0 tensors=1 samples=256 maximumAbsoluteError=0.000732
checkpoint=1 operation=1 tensors=1 samples=256 maximumAbsoluteError=0.000732
checkpoint=2 operation=2 tensors=1 samples=256 maximumAbsoluteError=0.000549
checkpoint=3 operation=3 tensors=1 samples=256 maximumAbsoluteError=0.001221
checkpoint=4 operation=6 tensors=1 samples=256 maximumAbsoluteError=0.000040
diagnosticCheckpoints=5 sampleLimit=256 numericalTest=PASS
package=artifacts/attention-product-grids/diagnostic/model.ipuexe tiles=1472 hardwareTest=PASS