2026-09-06T17:05:09.816136Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=680051 estimated_exchange_cycles=230280 exchange_row_bytes=50372 peak_standard_bytes=357572 peak_interleaved_bytes=52480 peak_total_bytes=402628 maximum_standard_allocation_bytes=122880 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:05:09.836222Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=680051 estimated_exchange_cycles=230280 exchange_row_bytes=50372 peak_standard_bytes=345284 peak_interleaved_bytes=61056 peak_total_bytes=402628 maximum_standard_allocation_bytes=122880 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:05:09.856235Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=680868 estimated_exchange_cycles=231400 exchange_row_bytes=50624 peak_standard_bytes=239040 peak_interleaved_bytes=52864 peak_total_bytes=247232 maximum_standard_allocation_bytes=122880 active_tile_counts={192, 480, 1472} padding_group_counts={16} conversion_sources=[]
2026-09-06T17:05:09.859727Z  INFO retained operator-plan finalist finalist=3 values=11 operations=7 estimated_cycles=684593 estimated_exchange_cycles=237000 exchange_row_bytes=51884 peak_standard_bytes=356012 peak_interleaved_bytes=51200 peak_total_bytes=397996 maximum_standard_allocation_bytes=122880 active_tile_counts={192, 368, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:05:09.974751Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=2169 success=true
2026-09-06T17:05:21.588936Z  INFO screened tile mappings by exchange resource load candidates=39 baseline_cycles=89448 candidate_cycles=85992 baseline_pressure=79770 candidate_pressure=76314
2026-09-06T17:05:21.698650Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=455620 estimated_cycles=598516 estimated_exchange_cycles=234888
2026-09-06T17:05:25.959689Z  INFO screened tile mappings by exchange resource load candidates=63 baseline_cycles=86056 candidate_cycles=86056 baseline_pressure=78796 candidate_pressure=78796
2026-09-06T17:05:26.072253Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=448986 estimated_cycles=720074 estimated_exchange_cycles=363144
2026-09-06T17:05:26.515081Z  INFO screened tile mappings by exchange resource load candidates=63 baseline_cycles=86056 candidate_cycles=86056 baseline_pressure=78796 candidate_pressure=78796
2026-09-06T17:05:26.631617Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=441354 estimated_cycles=712442 estimated_exchange_cycles=363144
2026-09-06T17:05:42.917547Z  INFO screened tile mappings by exchange resource load candidates=97 baseline_cycles=92088 candidate_cycles=92088 baseline_pressure=82083 candidate_pressure=82083
2026-09-06T17:05:43.233244Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=871746 estimated_cycles=1496858 estimated_exchange_cycles=723800
2026-09-06T17:05:43.282085Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:05:43.282169Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:05:43.284166Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=367 row_words=11 horizon=2913
2026-09-06T17:05:43.311052Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:05:43.311095Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:05:43.311901Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=367 row_words=11 horizon=2913
2026-09-06T17:05:43.334563Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:05:43.334597Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:05:43.335287Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=367 row_words=11 horizon=2913
2026-09-06T17:05:44.554585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-06T17:05:44.554642Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:05:44.573111Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=6 tile=380 row_words=125 horizon=1702
2026-09-06T17:06:46.788603Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=7 transfers=62534 maximum_identical_destinations=1
2026-09-06T17:06:46.788687Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=7 initial_horizon=14628 selected_horizon=14628 endpoint_lower_bound=5832 lower_bound_gap=8796 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:06:46.842488Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=7 tile=30 row_words=4080 horizon=14628
2026-09-06T17:06:54.692741Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=8 transfers=7786 maximum_identical_destinations=1
2026-09-06T17:06:54.692787Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=8 initial_horizon=37638 selected_horizon=36753 endpoint_lower_bound=30720 lower_bound_gap=6033 selected_kind="critical-neighborhood" neighborhood_improvements=2
2026-09-06T17:06:54.759032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=8 tile=52 row_words=699 horizon=36753
2026-09-06T17:06:54.897191Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=1 mapped=false analytical_cycles=712442 analytical_exchange_cycles=363144 scheduled_exchange_cycles=108393 refined_cycles=457691
2026-09-06T17:06:54.958978Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=1 mapped=false
2026-09-06T17:06:54.959000Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=104984 success=true
2026-09-06T17:06:54.959014Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: lowered graph for package construction logical_shards=36396 exchange_phases=10
2026-09-06T17:06:54.960423Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=1 success=true
2026-09-06T17:06:54.962184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=1 success=true
2026-09-06T17:06:54.962886Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=0 success=true
2026-09-06T17:06:54.963262Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-06T17:06:55.746682Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=6 success=true
2026-09-06T17:06:55.746712Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: allocated package support memory linked_end=323180 profile_bytes=148 exchange_table_bytes=19636 host_code_bytes=4736 generated_code_bytes=3596 code_address=430720 standard_ranges=[(442368, 524288)]
2026-09-06T17:06:55.904009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=157 success=true
2026-09-06T17:06:55.908165Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T17:06:55.918012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T17:06:55.918583Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:06:55.918594Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:06:55.919627Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=367 row_words=11 horizon=2913
2026-09-06T17:06:55.923694Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T17:06:55.933435Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-06T17:06:55.933990Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:06:55.934009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:06:55.935015Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=367 row_words=11 horizon=2913
2026-09-06T17:06:55.939766Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-06T17:06:55.949375Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-06T17:06:55.949898Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=1334 maximum_identical_destinations=1
2026-09-06T17:06:55.949905Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:06:55.950941Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=367 row_words=11 horizon=2913
2026-09-06T17:06:56.452854Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-06T17:06:56.460763Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-06T17:06:56.460780Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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
2026-09-06T17:06:56.476021Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=380 row_words=125 horizon=1702
2026-09-06T17:07:13.842531Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-06T17:07:13.876933Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=62534 maximum_identical_destinations=1
2026-09-06T17:07:13.876956Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=14628 selected_horizon=14628 endpoint_lower_bound=5832 lower_bound_gap=8796 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:07:13.927633Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=30 row_words=4080 horizon=14628
2026-09-06T17:07:15.813601Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-06T17:07:15.892281Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=7786 maximum_identical_destinations=1
2026-09-06T17:07:15.892315Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=36753 selected_horizon=36753 endpoint_lower_bound=30720 lower_bound_gap=6033 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:07:15.991980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=52 row_words=699 horizon=36753
2026-09-06T17:07:16.152346Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=20248 success=true
2026-09-06T17:07:18.162705Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=2010 success=true
2026-09-06T17:07:18.167407Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: costed final placed program final_cycles=457748 final_exchange=108450
2026-09-06T17:07:18.880102Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=11 success=true
2026-09-06T17:07:18.898391Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=18 success=true
2026-09-06T17:07:19.089819Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=186 success=true
2026-09-06T17:07:19.195305Z  INFO writing application package tiles=1472
2026-09-06T17:07:19.272234Z  INFO application package written
2026-09-06T17:07:19.274561Z  INFO reading application package
2026-09-06T17:07:19.438312Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T17:07:19.442753Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:07:19.442781Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:07:19.442787Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T17:07:19.442822Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T17:07:19.442826Z  INFO initializing IPU device
2026-09-06T17:07:19.450750Z  INFO IPU device initialized
2026-09-06T17:07:19.450763Z  INFO replaying device configuration register_writes=2003
2026-09-06T17:07:19.465080Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T17:07:19.683511Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T17:07:20.078439Z  INFO starting host exchange session startup_mark=23
2026-09-06T17:07:20.078469Z  INFO attaching host exchange pages pages=2
2026-09-06T17:07:20.079095Z  INFO host exchange session started
2026-09-06T17:07:20.080609Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=132
2026-09-06T17:07:20.164516Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
profile=artifacts/layout-sweep/attention-materialized-standard/execution.ipuprofile tiles=1472 samples=31861
attentionNumericalChecks=839808 expected=0.999756 maxError=0.000930 numericalTest=PASS
package=artifacts/layout-sweep/attention-materialized-standard/model.ipuexe tiles=1472 hardwareTest=PASS