2026-09-07T16:38:35.228284Z  INFO retained operator-plan finalist finalist=0 values=8 operations=5 estimated_cycles=169834 estimated_exchange_cycles=78240 exchange_row_bytes=17080 peak_standard_bytes=213688 peak_interleaved_bytes=79360 peak_total_bytes=264376 maximum_standard_allocation_bytes=196608 active_tile_counts={1345, 1440} padding_group_counts={} conversion_sources=[Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T16:38:35.233980Z  INFO retained operator-plan finalist finalist=1 values=8 operations=5 estimated_cycles=175368 estimated_exchange_cycles=84120 exchange_row_bytes=18272 peak_standard_bytes=86368 peak_interleaved_bytes=79360 peak_total_bytes=144224 maximum_standard_allocation_bytes=65536 active_tile_counts={1440, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T16:38:35.236389Z  INFO retained operator-plan finalist finalist=2 values=8 operations=5 estimated_cycles=176364 estimated_exchange_cycles=81720 exchange_row_bytes=17732 peak_standard_bytes=116036 peak_interleaved_bytes=79360 peak_total_bytes=181060 maximum_standard_allocation_bytes=98304 active_tile_counts={1440, 1470} padding_group_counts={} conversion_sources=[Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T16:38:35.238545Z  INFO retained operator-plan finalist finalist=3 values=8 operations=5 estimated_cycles=179990 estimated_exchange_cycles=90000 exchange_row_bytes=19464 peak_standard_bytes=68616 peak_interleaved_bytes=73728 peak_total_bytes=111624 maximum_standard_allocation_bytes=49152 active_tile_counts={1458} padding_group_counts={} conversion_sources=[Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T16:38:35.349805Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=10443 success=true
2026-09-07T16:38:37.318162Z  INFO screened tile mappings by exchange resource load candidates=82 baseline_cycles=29728 candidate_cycles=29728 baseline_pressure=25015 candidate_pressure=25015
2026-09-07T16:38:37.329104Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=121178 estimated_cycles=143034 estimated_exchange_cycles=53984
2026-09-07T16:38:38.812612Z  INFO screened tile mappings by exchange resource load candidates=92 baseline_cycles=33000 candidate_cycles=33000 baseline_pressure=26982 candidate_pressure=26982
2026-09-07T16:38:38.825030Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=125399 estimated_cycles=148271 estimated_exchange_cycles=58872
2026-09-07T16:38:39.226058Z  INFO screened tile mappings by exchange resource load candidates=116 baseline_cycles=32640 candidate_cycles=32640 baseline_pressure=25873 candidate_pressure=25873
2026-09-07T16:38:39.236619Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=127014 estimated_cycles=148326 estimated_exchange_cycles=56952
2026-09-07T16:38:40.238538Z  INFO screened tile mappings by exchange resource load candidates=48 baseline_cycles=35360 candidate_cycles=35360 baseline_pressure=31960 candidate_pressure=31960
2026-09-07T16:38:40.243355Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=131992 estimated_cycles=222512 estimated_exchange_cycles=128280
2026-09-07T16:38:40.392157Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=0 transfers=5380 maximum_identical_destinations=1
2026-09-07T16:38:40.392239Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=0 initial_horizon=7141 selected_horizon=4841 endpoint_lower_bound=4672 lower_bound_gap=169 selected_kind="matching-waves" neighborhood_improvements=0
2026-09-07T16:38:40.396081Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=0 tile=337 row_words=30 horizon=4841
2026-09-07T16:38:40.595988Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: compared ordinary and paired exchange schedules phase=1 candidates=2119 ordinary_horizon=9165 paired_horizon=8052 use_paired=true
2026-09-07T16:38:40.610704Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=1 transfers=2152 maximum_identical_destinations=1
2026-09-07T16:38:40.610741Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=1 initial_horizon=8052 selected_horizon=8052 endpoint_lower_bound=7920 lower_bound_gap=132 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T16:38:40.616387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=1 tile=111 row_words=61 horizon=8052
2026-09-07T16:38:49.706821Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=3 transfers=74200 maximum_identical_destinations=1
2026-09-07T16:38:49.706899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=3 initial_horizon=18482 selected_horizon=18482 endpoint_lower_bound=13680 lower_bound_gap=4802 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T16:38:49.779607Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=3 tile=716 row_words=406 horizon=18482
2026-09-07T16:38:49.828759Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=0 mapped=false analytical_cycles=143034 analytical_exchange_cycles=53984 scheduled_exchange_cycles=37363 refined_cycles=126413
2026-09-07T16:38:49.947076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=0 mapped=false
2026-09-07T16:38:49.947135Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=14597 success=true
2026-09-07T16:38:49.947157Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: lowered graph for package construction logical_shards=26073 exchange_phases=4
2026-09-07T16:38:49.947500Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-07T16:38:49.949946Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=2 success=true
2026-09-07T16:38:49.950737Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=0 success=true
2026-09-07T16:38:49.951670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-07T16:38:50.869311Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=6 success=true
2026-09-07T16:38:50.869377Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: allocated package support memory linked_end=317808 profile_bytes=88 exchange_table_bytes=1940 host_code_bytes=3540 generated_code_bytes=1512 code_address=321416 standard_ranges=[(409600, 524288)]
2026-09-07T16:38:50.907225Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=37 success=true
2026-09-07T16:38:50.926786Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-07T16:38:50.961245Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-07T16:38:50.963980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=5380 maximum_identical_destinations=1
2026-09-07T16:38:50.964009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=4841 selected_horizon=4841 endpoint_lower_bound=4672 lower_bound_gap=169 selected_kind="reused" neighborhood_improvements=0
2026-09-07T16:38:50.967922Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=337 row_words=30 horizon=4841
2026-09-07T16:38:51.042150Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-07T16:38:51.046692Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=2152 maximum_identical_destinations=1
2026-09-07T16:38:51.046720Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=8052 selected_horizon=8052 endpoint_lower_bound=7920 lower_bound_gap=132 selected_kind="reused" neighborhood_improvements=0
2026-09-07T16:38:51.051897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=111 row_words=61 horizon=8052
2026-09-07T16:38:53.632264Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-07T16:38:53.676024Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=74200 maximum_identical_destinations=1
2026-09-07T16:38:53.676062Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=18482 selected_horizon=18482 endpoint_lower_bound=13680 lower_bound_gap=4802 selected_kind="reused" neighborhood_improvements=0
2026-09-07T16:38:53.744632Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=716 row_words=406 horizon=18482
2026-09-07T16:38:53.774904Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=2867 success=true
2026-09-07T16:38:54.003716Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=228 success=true
2026-09-07T16:38:54.007169Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: costed final placed program final_cycles=126413 final_exchange=37363
2026-09-07T16:38:54.469091Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=9 success=true
2026-09-07T16:38:54.480984Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=11 success=true
2026-09-07T16:38:54.603121Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=117 success=true
2026-09-07T16:38:54.690863Z  INFO writing application package tiles=1472
2026-09-07T16:38:54.734082Z  INFO application package written
2026-09-07T16:38:54.734334Z  INFO reading application package
2026-09-07T16:38:54.836267Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-07T16:38:54.836563Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T16:38:54.836580Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T16:38:54.836587Z  INFO opening IPU device path="/dev/ipu0"
2026-09-07T16:38:54.836631Z  INFO IPU device attached path=/dev/ipu0
2026-09-07T16:38:54.836637Z  INFO initializing IPU device
2026-09-07T16:38:54.844812Z  INFO IPU device initialized
2026-09-07T16:38:54.844861Z  INFO replaying device configuration register_writes=2003
2026-09-07T16:38:54.856866Z  INFO loading application tile_count=1472 final_mark=23
2026-09-07T16:38:55.100760Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-07T16:39:03.780458Z  INFO starting host exchange session startup_mark=23
2026-09-07T16:39:03.780546Z  INFO attaching host exchange pages pages=2
2026-09-07T16:39:03.781222Z  INFO host exchange session started
2026-09-07T16:39:03.781283Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=10
2026-09-07T16:39:03.787610Z  INFO invoking streaming host exchange call call="run" command=0 phases=99
profile=artifacts/fp8-before-fanout/mlp-grain/profile.ipuprof tiles=1472 samples=21118
referenceMaximumAbsoluteError=0.006378 numericalTest=PASS
package=artifacts/fp8-before-fanout/mlp-grain/model.ipuexe tiles=1472 hardwareTest=PASS