2026-09-06T16:50:16.244317Z  INFO retained operator-plan finalist finalist=0 values=7 operations=4 estimated_cycles=101797 estimated_exchange_cycles=42920 exchange_row_bytes=8740 peak_standard_bytes=47652 peak_interleaved_bytes=53248 peak_total_bytes=78372 maximum_standard_allocation_bytes=16384 active_tile_counts={4, 64} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(0))]
2026-09-06T16:50:16.244436Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=6 success=true
2026-09-06T16:50:16.281951Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: screened tile mappings by exchange resource load candidates=10 baseline_cycles=6912 candidate_cycles=6912 baseline_pressure=5852 candidate_pressure=5852
2026-09-06T16:50:16.282600Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: modelled expanded operator plan finalist=0 modelled_cycles=74792 estimated_cycles=98768 estimated_exchange_cycles=32688
2026-09-06T16:50:16.311620Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=0 mapped=false analytical_cycles=98768 analytical_exchange_cycles=32688 scheduled_exchange_cycles=10849 refined_cycles=76929
2026-09-06T16:50:16.311704Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=0 mapped=false
2026-09-06T16:50:16.311710Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=67 success=true
2026-09-06T16:50:16.311718Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}: lowered graph for package construction logical_shards=644 exchange_phases=3
2026-09-06T16:50:16.311912Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-06T16:50:16.311990Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-06T16:50:16.312146Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/gemm_f16_amp.S name="gemm_f16_interleaved_k64_c80_r1_r2" target=ipu21
2026-09-06T16:50:16.374144Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/1e42569c42e02f430a25c0ceaed2a150683dedd7dd16701011213b30a1fd7011/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/1e42569c42e02f430a25c0ceaed2a150683dedd7dd16701011213b30a1fd7011/kernel.json
2026-09-06T16:50:16.374519Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/gemm_f16_amp.S name="gemm_f16_interleaved_k80_c64_r1_r2" target=ipu21
2026-09-06T16:50:16.440815Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/5c02ce24c82e593e89cd0098dbb431f69e35e381f49088b85fa067a5ed871a17/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/5c02ce24c82e593e89cd0098dbb431f69e35e381f49088b85fa067a5ed871a17/kernel.json
2026-09-06T16:50:16.441781Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=129 success=true
2026-09-06T16:50:16.442199Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-06T16:50:16.478242Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=2 success=true
2026-09-06T16:50:16.478282Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}: allocated package support memory linked_end=319372 profile_bytes=76 exchange_table_bytes=816 host_code_bytes=464 generated_code_bytes=1500 code_address=319840 standard_ranges=[(409600, 524288)]
2026-09-06T16:50:16.480140Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=1 success=true
2026-09-06T16:50:16.483257Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T16:50:16.488453Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T16:50:16.490635Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T16:50:16.490805Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=10 success=true
2026-09-06T16:50:16.508574Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=17 success=true
2026-09-06T16:50:16.508730Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}: costed final placed program final_cycles=76929 final_exchange=10849
2026-09-06T16:50:16.524659Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=2 success=true
2026-09-06T16:50:16.528111Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=3 success=true
2026-09-06T16:50:16.650737Z  INFO ipu_codegen.package.build{tile_count=64 operations=1}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=121 success=true
2026-09-06T16:50:16.657438Z  INFO writing application package tiles=1472
2026-09-06T16:50:16.672967Z  INFO application package written
2026-09-06T16:50:16.674289Z  INFO reading application package
2026-09-06T16:50:16.710098Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T16:50:16.710493Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T16:50:16.867402Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T16:50:16.867467Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T16:50:16.867561Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T16:50:16.867569Z  INFO initializing IPU device
2026-09-06T16:50:16.875780Z  INFO IPU device initialized
2026-09-06T16:50:16.875832Z  INFO replaying device configuration register_writes=2003
2026-09-06T16:50:16.881618Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T16:50:17.100956Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T16:50:17.106915Z  INFO starting host exchange session startup_mark=23
2026-09-06T16:50:17.106934Z  INFO attaching host exchange pages pages=2
2026-09-06T16:50:17.107651Z  INFO host exchange session started
2026-09-06T16:50:17.107684Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
attentionNumericalChecks=4896 maxError=0.004552 rmsError=0.000722 numericalTest=PASS
package=artifacts/layout-sweep/attention-tail-fixed-smoke/model.ipuexe tiles=1472 hardwareTest=PASS