2026-09-06T17:48:33.503192Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=685400 estimated_exchange_cycles=288600 exchange_row_bytes=60612 peak_standard_bytes=163012 peak_interleaved_bytes=100352 peak_total_bytes=253124 maximum_standard_allocation_bytes=36864 active_tile_counts={192, 288, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:48:33.524109Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=687938 estimated_exchange_cycles=288600 exchange_row_bytes=60612 peak_standard_bytes=191684 peak_interleaved_bytes=75776 peak_total_bytes=230596 maximum_standard_allocation_bytes=36864 active_tile_counts={192, 288, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:48:33.525435Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=690532 estimated_exchange_cycles=311480 exchange_row_bytes=65760 peak_standard_bytes=188640 peak_interleaved_bytes=90112 peak_total_bytes=254176 maximum_standard_allocation_bytes=57344 active_tile_counts={192, 240, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:48:33.546265Z  INFO retained operator-plan finalist finalist=3 values=11 operations=7 estimated_cycles=693070 estimated_exchange_cycles=311480 exchange_row_bytes=65760 peak_standard_bytes=205024 peak_interleaved_bytes=73728 peak_total_bytes=245984 maximum_standard_allocation_bytes=57344 active_tile_counts={192, 240, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:48:33.611718Z  INFO ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=2268 success=true
2026-09-06T17:48:51.624116Z  INFO screened tile mappings by exchange resource load candidates=119 baseline_cycles=123264 candidate_cycles=123264 baseline_pressure=103354 candidate_pressure=103354
2026-09-06T17:48:51.803220Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=582017 estimated_cycles=902521 estimated_exchange_cycles=456368
2026-09-06T17:48:56.135159Z  INFO screened tile mappings by exchange resource load candidates=115 baseline_cycles=135548 candidate_cycles=135548 baseline_pressure=102555 candidate_pressure=102555
2026-09-06T17:48:56.223626Z  INFO screened tile mappings by exchange resource load candidates=113 baseline_cycles=125372 candidate_cycles=125372 baseline_pressure=99208 candidate_pressure=99208
2026-09-06T17:48:56.278275Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=611934 estimated_cycles=762074 estimated_exchange_cycles=298288
2026-09-06T17:48:56.354183Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=596766 estimated_cycles=729434 estimated_exchange_cycles=270640
2026-09-06T17:49:02.361999Z  INFO screened tile mappings by exchange resource load candidates=113 baseline_cycles=112512 candidate_cycles=112512 baseline_pressure=99904 candidate_pressure=99904
2026-09-06T17:49:02.537820Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=572880 estimated_cycles=820328 estimated_exchange_cycles=372560
2026-09-06T17:49:02.580685Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:02.580725Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=1 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:02.581650Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:02.638879Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:02.638905Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=3 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:02.639804Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:02.696608Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:02.696634Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:02.697782Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:17.223748Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=6 transfers=62278 maximum_identical_destinations=1
2026-09-06T17:49:17.223790Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=6 initial_horizon=2422 selected_horizon=2422 endpoint_lower_bound=1472 lower_bound_gap=950 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:17.308542Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=6 tile=19 row_words=697 horizon=2422
2026-09-06T17:49:33.251560Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=7 transfers=61202 maximum_identical_destinations=1
2026-09-06T17:49:33.251596Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=7 initial_horizon=2759 selected_horizon=2759 endpoint_lower_bound=1536 lower_bound_gap=1223 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:33.304849Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=7 tile=55 row_words=871 horizon=2759
2026-09-06T17:49:47.330446Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=8 transfers=63784 maximum_identical_destinations=1
2026-09-06T17:49:47.330480Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=8 initial_horizon=3362 selected_horizon=3362 endpoint_lower_bound=1472 lower_bound_gap=1890 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:47.409515Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=8 tile=217 row_words=704 horizon=3362
2026-09-06T17:49:49.890701Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=1 mapped=false analytical_cycles=820328 analytical_exchange_cycles=372560 scheduled_exchange_cycles=131490 refined_cycles=579258
2026-09-06T17:49:50.166293Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=1 mapped=false
2026-09-06T17:49:50.166327Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=76554 success=true
2026-09-06T17:49:50.166344Z  INFO lowered graph for package construction logical_shards=128750 exchange_phases=21
2026-09-06T17:49:50.167105Z  INFO ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-06T17:49:50.178640Z  INFO ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=11 success=true
2026-09-06T17:49:50.179585Z  INFO ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=0 success=true
2026-09-06T17:49:50.180737Z  INFO ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-06T17:49:50.404946Z  INFO ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=5 success=true
2026-09-06T17:49:50.404968Z  INFO allocated package support memory linked_end=322500 profile_bytes=0 exchange_table_bytes=11312 host_code_bytes=1028 generated_code_bytes=3476 code_address=323536 standard_ranges=[(393216, 524288)]
2026-09-06T17:49:50.930275Z  INFO ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=525 success=true
2026-09-06T17:49:50.938778Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T17:49:50.972221Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:50.972238Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:50.973099Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:50.981049Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T17:49:51.013944Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:51.013958Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:49:51.014826Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:51.023014Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-06T17:49:51.033250Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-06T17:49:51.033796Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=1422 maximum_identical_destinations=1
2026-09-06T17:49:51.033804Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:49:51.034670Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=35 row_words=14 horizon=7802
2026-09-06T17:49:57.051755Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-06T17:49:57.079098Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=62278 maximum_identical_destinations=1
2026-09-06T17:49:57.079116Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=2422 selected_horizon=2422 endpoint_lower_bound=1472 lower_bound_gap=950 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:49:57.159789Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=19 row_words=697 horizon=2422
2026-09-06T17:50:04.372187Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-06T17:50:04.398035Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=61202 maximum_identical_destinations=1
2026-09-06T17:50:04.398058Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=2759 selected_horizon=2759 endpoint_lower_bound=1536 lower_bound_gap=1223 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:50:04.484346Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=55 row_words=871 horizon=2759
2026-09-06T17:50:11.382763Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-06T17:50:11.413885Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=63784 maximum_identical_destinations=1
2026-09-06T17:50:11.413924Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=3362 selected_horizon=3362 endpoint_lower_bound=1472 lower_bound_gap=1890 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:50:11.494314Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=217 row_words=704 horizon=3362
2026-09-06T17:50:11.618985Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-06T17:50:11.753124Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-06T17:50:11.897067Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-06T17:50:12.018092Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-06T17:50:12.147655Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-06T17:50:12.268752Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-06T17:50:12.389706Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-06T17:50:12.519697Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16
2026-09-06T17:50:12.649768Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-06T17:50:12.778532Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-06T17:50:12.918503Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-06T17:50:13.054156Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-06T17:50:13.072479Z  INFO ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=22142 success=true
2026-09-06T17:50:17.855571Z  INFO ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=4783 success=true
2026-09-06T17:50:17.874291Z  INFO costed final placed program final_cycles=579258 final_exchange=131490
2026-09-06T17:50:18.011135Z  INFO ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=18 success=true
2026-09-06T17:50:18.049677Z  INFO ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=38 success=true
2026-09-06T17:50:18.247529Z  INFO ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=175 success=true
2026-09-06T17:50:18.380027Z  INFO writing application package tiles=1472
2026-09-06T17:50:18.407262Z  INFO application package written
2026-09-06T17:50:18.407304Z  INFO reading application package
2026-09-06T17:50:18.442120Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T17:50:18.442231Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:50:18.442243Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:50:18.442248Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T17:50:18.442294Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T17:50:18.442297Z  INFO initializing IPU device
2026-09-06T17:50:18.450374Z  INFO IPU device initialized
2026-09-06T17:50:18.450421Z  INFO replaying device configuration register_writes=2003
2026-09-06T17:50:18.457671Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T17:50:18.704670Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T17:50:21.511375Z  INFO starting host exchange session startup_mark=23
2026-09-06T17:50:21.511421Z  INFO attaching host exchange pages pages=2
2026-09-06T17:50:21.512158Z  INFO host exchange session started
2026-09-06T17:50:21.512188Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=16
2026-09-06T17:50:21.517437Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
checkpoint=0 operation=0 tensors=1 samples=256 maximumAbsoluteError=0.001465
checkpoint=1 operation=1 tensors=1 samples=256 maximumAbsoluteError=0.001221
checkpoint=2 operation=2 tensors=1 samples=256 maximumAbsoluteError=0.001282
checkpoint=3 operation=6 tensors=1 samples=256 maximumAbsoluteError=0.000067
diagnosticCheckpoints=4 sampleLimit=256 numericalTest=PASS
package=artifacts/layout-sweep/attention-packed-full-diagnostic/model.ipuexe tiles=1472 hardwareTest=PASS