2026-09-07T17:13:32.972780Z  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))]
2026-09-07T17:13:32.982833Z  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))]
2026-09-07T17:13:32.986365Z  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))]
2026-09-07T17:13:32.989537Z  INFO retained operator-plan finalist finalist=3 values=8 operations=5 estimated_cycles=177950 estimated_exchange_cycles=87960 exchange_row_bytes=19136 peak_standard_bytes=68288 peak_interleaved_bytes=73728 peak_total_bytes=111296 maximum_standard_allocation_bytes=49152 active_tile_counts={1458} padding_group_counts={} conversion_sources=[Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T17:13:33.047655Z  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=10321 success=true
2026-09-07T17:13:34.618836Z DEBUG placed tile storage tiles=1472 shards=26073 elapsed_us=32049
2026-09-07T17:13:34.958574Z  INFO screened tile mappings by exchange resource load candidates=82 baseline_cycles=29728 candidate_cycles=29728 baseline_pressure=25015 candidate_pressure=25015
2026-09-07T17:13:34.969813Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=121178 estimated_cycles=143034 estimated_exchange_cycles=53984
2026-09-07T17:13:36.096491Z DEBUG placed tile storage tiles=1472 shards=28136 elapsed_us=33503
2026-09-07T17:13:36.458605Z DEBUG placed tile storage tiles=1472 shards=29256 elapsed_us=39702
2026-09-07T17:13:36.512509Z  INFO screened tile mappings by exchange resource load candidates=92 baseline_cycles=33000 candidate_cycles=33000 baseline_pressure=26982 candidate_pressure=26982
2026-09-07T17:13:36.523816Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=125399 estimated_cycles=148271 estimated_exchange_cycles=58872
2026-09-07T17:13:36.831049Z DEBUG placed tile storage tiles=1472 shards=27567 elapsed_us=24260
2026-09-07T17:13:36.845517Z  INFO screened tile mappings by exchange resource load candidates=116 baseline_cycles=32640 candidate_cycles=32640 baseline_pressure=25873 candidate_pressure=25873
2026-09-07T17:13:36.855794Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=127014 estimated_cycles=148326 estimated_exchange_cycles=56952
2026-09-07T17:13:37.160243Z  INFO screened tile mappings by exchange resource load candidates=48 baseline_cycles=35360 candidate_cycles=35360 baseline_pressure=31960 candidate_pressure=31960
2026-09-07T17:13:37.162999Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=131992 estimated_cycles=222512 estimated_exchange_cycles=128280
2026-09-07T17:13:37.487398Z  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
2026-09-07T17:13:37.499724Z  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
2026-09-07T17:13:37.499760Z  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
2026-09-07T17:13:37.504705Z  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
2026-09-07T17:13:44.039136Z  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
2026-09-07T17:13:44.039231Z  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=18803 selected_horizon=18803 endpoint_lower_bound=13680 lower_bound_gap=5123 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T17:13:44.114461Z  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=698 row_words=405 horizon=18803
2026-09-07T17:13:44.239340Z  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
2026-09-07T17:13:44.239382Z  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
2026-09-07T17:13:44.242923Z  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
2026-09-07T17:13:44.248454Z  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=37684 refined_cycles=126734
2026-09-07T17:13:44.328587Z  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
2026-09-07T17:13:44.328622Z  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=11280 success=true
2026-09-07T17:13:44.328639Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: lowered graph for package construction logical_shards=26073 exchange_phases=4
2026-09-07T17:13:44.328901Z  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
2026-09-07T17:13:44.330531Z  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=1 success=true
2026-09-07T17:13:44.331166Z  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
2026-09-07T17:13:44.331637Z  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
2026-09-07T17:13:45.177357Z  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=8 success=true
2026-09-07T17:13:45.177421Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: allocated package support memory linked_end=317808 profile_bytes=88 exchange_table_bytes=1932 host_code_bytes=3540 generated_code_bytes=1512 code_address=321416 standard_ranges=[(409600, 524288)]
2026-09-07T17:13:45.205952Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="place_storage"}: placed tile storage tiles=1472 shards=26073 elapsed_us=28509
2026-09-07T17:13:45.208685Z  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=31 success=true
2026-09-07T17:13:45.216258Z  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
2026-09-07T17:13:45.260256Z  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
2026-09-07T17:13:45.262538Z  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
2026-09-07T17:13:45.262554Z  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
2026-09-07T17:13:45.266236Z  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
2026-09-07T17:13:45.385018Z  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
2026-09-07T17:13:45.388673Z  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
2026-09-07T17:13:45.388694Z  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
2026-09-07T17:13:45.393375Z  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
2026-09-07T17:13:47.743332Z  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
2026-09-07T17:13:47.780055Z  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
2026-09-07T17:13:47.780078Z  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=18803 selected_horizon=18803 endpoint_lower_bound=13680 lower_bound_gap=5123 selected_kind="reused" neighborhood_improvements=0
2026-09-07T17:13:47.849057Z  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=698 row_words=405 horizon=18803
2026-09-07T17:13:47.875345Z  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=2666 success=true
2026-09-07T17:13:48.104993Z  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=229 success=true
2026-09-07T17:13:48.107450Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: costed final placed program final_cycles=126734 final_exchange=37684
2026-09-07T17:13:48.539296Z  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=11 success=true
2026-09-07T17:13:48.549557Z  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=10 success=true
2026-09-07T17:13:48.676132Z  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=120 success=true
2026-09-07T17:13:48.750399Z  INFO writing application package tiles=1472
2026-09-07T17:13:48.796472Z  INFO application package written
2026-09-07T17:13:48.797390Z  INFO reading application package
2026-09-07T17:13:48.907602Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-07T17:13:48.910006Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T17:13:48.910025Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T17:13:48.910033Z  INFO opening IPU device path="/dev/ipu0"
2026-09-07T17:13:48.910068Z  INFO IPU device attached path=/dev/ipu0
2026-09-07T17:13:48.910073Z  INFO initializing IPU device
2026-09-07T17:13:48.918086Z  INFO IPU device initialized
2026-09-07T17:13:48.918093Z  INFO replaying device configuration register_writes=2003
2026-09-07T17:13:48.929238Z  INFO loading application tile_count=1472 final_mark=23
2026-09-07T17:13:49.167641Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-07T17:13:57.235848Z  INFO starting host exchange session startup_mark=23
2026-09-07T17:13:57.235886Z  INFO attaching host exchange pages pages=2
2026-09-07T17:13:57.238527Z  INFO host exchange session started
2026-09-07T17:13:57.238577Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=10
2026-09-07T17:13:57.245882Z  INFO invoking streaming host exchange call call="run" command=0 phases=99
profile=artifacts/joint-placement/mlp-single-b1/profile.ipuprof tiles=1472 samples=21118
referenceMaximumAbsoluteError=0.006378 numericalTest=PASS
package=artifacts/joint-placement/mlp-single-b1/model.ipuexe tiles=1472 hardwareTest=PASS