2026-09-06T13:42:44.355548Z  INFO retained operator-plan finalist finalist=0 values=7 operations=4 estimated_cycles=103535 estimated_exchange_cycles=42760 exchange_row_bytes=8704 peak_standard_bytes=47616 peak_interleaved_bytes=32768 peak_total_bytes=78336 maximum_standard_allocation_bytes=16384 active_tile_counts={4, 68} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(0))]
2026-09-06T13:42:44.355831Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=15 success=true
2026-09-06T13:42:44.401068Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: screened tile mappings by exchange resource load candidates=21 baseline_cycles=7424 candidate_cycles=7424 baseline_pressure=5875 candidate_pressure=5875
2026-09-06T13:42:44.401491Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: modelled expanded operator plan finalist=0 modelled_cycles=75957 estimated_cycles=99421 estimated_exchange_cycles=32688
2026-09-06T13:42:44.432957Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=0 mapped=false analytical_cycles=99421 analytical_exchange_cycles=32688 scheduled_exchange_cycles=10969 refined_cycles=77702
2026-09-06T13:42:44.433538Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=0 mapped=false
2026-09-06T13:42:44.433550Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=77 success=true
2026-09-06T13:42:44.433559Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}: lowered graph for package construction logical_shards=676 exchange_phases=3
2026-09-06T13:42:44.433751Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-06T13:42:44.433840Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-06T13:42:44.434333Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=0 success=true
2026-09-06T13:42:44.434527Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-06T13:42:44.438941Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="plan_exchange_storage"}: package build phase finished phase="plan_exchange_storage" elapsed_ms=4 success=true
2026-09-06T13:42:44.441909Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T13:42:44.449062Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T13:42:44.452289Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T13:42:44.452665Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: package build phase finished phase="lower_exchanges_provisional" elapsed_ms=13 success=true
2026-09-06T13:42:44.517387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=2 success=true
2026-09-06T13:42:44.517427Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}: allocated package support memory linked_end=317948 profile_bytes=68 exchange_table_bytes=824 host_code_bytes=472 generated_code_bytes=1444 code_address=318424 standard_ranges=[(409600, 524288)]
2026-09-06T13:42:44.522066Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=4 success=true
2026-09-06T13:42:44.526183Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T13:42:44.535286Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T13:42:44.539353Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T13:42:44.539957Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=17 success=true
2026-09-06T13:42:44.587639Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=47 success=true
2026-09-06T13:42:44.587805Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}: costed final placed program final_cycles=77702 final_exchange=10969
2026-09-06T13:42:44.626105Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=3 success=true
2026-09-06T13:42:44.629375Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=3 success=true
2026-09-06T13:42:44.725032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=1}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=94 success=true
2026-09-06T13:42:44.734751Z  INFO writing application package tiles=1472
2026-09-06T13:42:44.746450Z  INFO application package written
2026-09-06T13:42:44.747046Z  INFO reading application package
2026-09-06T13:42:44.768513Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T13:42:44.768763Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T13:42:44.768772Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T13:42:44.768777Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T13:42:44.768818Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T13:42:44.768821Z  INFO initializing IPU device
2026-09-06T13:42:44.777267Z  INFO IPU device initialized
2026-09-06T13:42:44.777274Z  INFO replaying device configuration register_writes=2003
2026-09-06T13:42:44.781876Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T13:42:44.980273Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T13:42:44.984701Z  INFO starting host exchange session startup_mark=23
2026-09-06T13:42:44.984724Z  INFO attaching host exchange pages pages=2
2026-09-06T13:42:44.985423Z  INFO host exchange session started
2026-09-06T13:42:44.985506Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
profile=artifacts/layout-sweep/cleanup/attention-flash/execution.ipuprofile tiles=1472 samples=5020
attentionNumericalChecks=4896 maxError=0.000113 rmsError=0.000018 numericalTest=PASS
package=artifacts/layout-sweep/cleanup/attention-flash/model.ipuexe tiles=1472 hardwareTest=PASS