2026-09-06T17:45:35.349766Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=685400 estimated_exchange_cycles=288600 exchange_row_bytes=60612 peak_standard_bytes=163012 peak_interleaved_bytes=100352 peak_total_bytes=253124 maximum_standard_allocation_bytes=36864 active_tile_counts={192, 288, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:45:35.370789Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=687938 estimated_exchange_cycles=288600 exchange_row_bytes=60612 peak_standard_bytes=191684 peak_interleaved_bytes=75776 peak_total_bytes=230596 maximum_standard_allocation_bytes=36864 active_tile_counts={192, 288, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:45:35.372141Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=690532 estimated_exchange_cycles=311480 exchange_row_bytes=65760 peak_standard_bytes=188640 peak_interleaved_bytes=90112 peak_total_bytes=254176 maximum_standard_allocation_bytes=57344 active_tile_counts={192, 240, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:45:35.398086Z  INFO retained operator-plan finalist finalist=3 values=11 operations=7 estimated_cycles=693070 estimated_exchange_cycles=311480 exchange_row_bytes=65760 peak_standard_bytes=205024 peak_interleaved_bytes=73728 peak_total_bytes=245984 maximum_standard_allocation_bytes=57344 active_tile_counts={192, 240, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T17:45:35.471175Z  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=2668 success=true
2026-09-06T17:45:58.269345Z  INFO screened tile mappings by exchange resource load candidates=113 baseline_cycles=125372 candidate_cycles=125372 baseline_pressure=99208 candidate_pressure=99208
2026-09-06T17:45:58.402101Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=596766 estimated_cycles=729434 estimated_exchange_cycles=270640
2026-09-06T17:45:58.599432Z  INFO screened tile mappings by exchange resource load candidates=115 baseline_cycles=135548 candidate_cycles=135548 baseline_pressure=102555 candidate_pressure=102555
2026-09-06T17:45:58.753945Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=611934 estimated_cycles=762074 estimated_exchange_cycles=298288
2026-09-06T17:46:03.639438Z  INFO screened tile mappings by exchange resource load candidates=119 baseline_cycles=123264 candidate_cycles=123264 baseline_pressure=103354 candidate_pressure=103354
2026-09-06T17:46:03.820784Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=582017 estimated_cycles=902521 estimated_exchange_cycles=456368
2026-09-06T17:46:04.319781Z  INFO screened tile mappings by exchange resource load candidates=113 baseline_cycles=112512 candidate_cycles=112512 baseline_pressure=99904 candidate_pressure=99904
2026-09-06T17:46:04.509483Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=572880 estimated_cycles=820328 estimated_exchange_cycles=372560
2026-09-06T17:46:04.586301Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:46:04.586383Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:04.588121Z  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=35 row_words=14 horizon=7802
2026-09-06T17:46:04.650083Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:46:04.650166Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:04.651846Z  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=35 row_words=14 horizon=7802
2026-09-06T17:46:04.732184Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:46:04.732271Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:04.733933Z  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=35 row_words=14 horizon=7802
2026-09-06T17:46:22.293652Z  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=62278 maximum_identical_destinations=1
2026-09-06T17:46:22.293720Z  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=2422 selected_horizon=2422 endpoint_lower_bound=1472 lower_bound_gap=950 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:22.383050Z  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=19 row_words=697 horizon=2422
2026-09-06T17:46:38.767699Z  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=61202 maximum_identical_destinations=1
2026-09-06T17:46:38.767778Z  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=2759 selected_horizon=2759 endpoint_lower_bound=1536 lower_bound_gap=1223 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:38.858421Z  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=55 row_words=871 horizon=2759
2026-09-06T17:46:55.247754Z  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=63784 maximum_identical_destinations=1
2026-09-06T17:46:55.247823Z  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=3362 selected_horizon=3362 endpoint_lower_bound=1472 lower_bound_gap=1890 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:46:55.325998Z  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=217 row_words=704 horizon=3362
2026-09-06T17:46:58.168999Z  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=820328 analytical_exchange_cycles=372560 scheduled_exchange_cycles=131490 refined_cycles=579258
2026-09-06T17:46:58.585628Z  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
2026-09-06T17:46:58.585681Z  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=83114 success=true
2026-09-06T17:46:58.585706Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: lowered graph for package construction logical_shards=128750 exchange_phases=21
2026-09-06T17:46:58.587556Z  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
2026-09-06T17:46:58.602297Z  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=14 success=true
2026-09-06T17:46:58.602649Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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_packed64_k240_c64_r48_r48" target=ipu21
2026-09-06T17:46:58.663359Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/ff0969d31eaad6f2d5748fb580d98abb2a6a514d82b975156280e8c9d8536d33/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/ff0969d31eaad6f2d5748fb580d98abb2a6a514d82b975156280e8c9d8536d33/kernel.json
2026-09-06T17:46:58.663744Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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_r7_r8" target=ipu21
2026-09-06T17:46:58.727176Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/0b1d35e273c9d6e6bf7d36a0d1bba6d1acb397a81e0fac1a72d03e0b3b7d4df0/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/0b1d35e273c9d6e6bf7d36a0d1bba6d1acb397a81e0fac1a72d03e0b3b7d4df0/kernel.json
2026-09-06T17:46:58.727637Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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_r7_r8" target=ipu21
2026-09-06T17:46:58.779880Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/2bf0a970cbe3a6862a0965c615fae0f0150941f30df58fb5951e23d2f9d735df/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/2bf0a970cbe3a6862a0965c615fae0f0150941f30df58fb5951e23d2f9d735df/kernel.json
2026-09-06T17:46:58.780320Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: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_packed64_k240_c64_r48_r48" target=ipu21
2026-09-06T17:46:58.841271Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/c502009890627b5059d383fdb36eb71cb21a9cdc165018d23cd647b5fc60fada/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/c502009890627b5059d383fdb36eb71cb21a9cdc165018d23cd647b5fc60fada/kernel.json
2026-09-06T17:46:58.841781Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/unpack_amp_f16.cpp name="unpack_amp_f16_codelet_o3_r43_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:46:59.193441Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/793fded005df873ca27ef92fae8d541332672be37b79e5aafb230874bfeec114/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/793fded005df873ca27ef92fae8d541332672be37b79e5aafb230874bfeec114/kernel.json
2026-09-06T17:46:59.193663Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/worker_call.S name="unpack_amp_f16_wrapper_o3_r43_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:46:59.249153Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/cc60fd3dbe6488203331ecd31eac7810edf8f2b25beb77f9b10ddac75fa267c7/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/cc60fd3dbe6488203331ecd31eac7810edf8f2b25beb77f9b10ddac75fa267c7/kernel.json
2026-09-06T17:46:59.249627Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/unpack_amp_f16.cpp name="unpack_amp_f16_codelet_o3_r44_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:46:59.581651Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/f0e8942b8f2ff4a134e25a806c9546ce10e6f2ad1a01cdc242bcc57fabdfb9ab/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/f0e8942b8f2ff4a134e25a806c9546ce10e6f2ad1a01cdc242bcc57fabdfb9ab/kernel.json
2026-09-06T17:46:59.582007Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/worker_call.S name="unpack_amp_f16_wrapper_o3_r44_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:46:59.638755Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/2c38c4f01b3302a23995bc9289b1246f7ae3a5e8370efcfc613a3bea6fc7cc5c/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/2c38c4f01b3302a23995bc9289b1246f7ae3a5e8370efcfc613a3bea6fc7cc5c/kernel.json
2026-09-06T17:46:59.639115Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/unpack_amp_f16.cpp name="unpack_amp_f16_codelet_o3_r46_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:46:59.971305Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/0f41560e8d60fb8d7bde4423bd2d954ee3f4fd23e9a82a2b1064a45a768e6e05/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/0f41560e8d60fb8d7bde4423bd2d954ee3f4fd23e9a82a2b1064a45a768e6e05/kernel.json
2026-09-06T17:46:59.971657Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/worker_call.S name="unpack_amp_f16_wrapper_o3_r46_p48_c64_p64_b64_16" target=ipu21
2026-09-06T17:47:00.026182Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/c39b3e976df51ddff00015f5d17423c702590794d64c12ebd8b7a3d7749d2cae/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/c39b3e976df51ddff00015f5d17423c702590794d64c12ebd8b7a3d7749d2cae/kernel.json
2026-09-06T17:47:00.027093Z  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=1424 success=true
2026-09-06T17:47:00.029352Z  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
2026-09-06T17:47:00.351676Z  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=18 success=true
2026-09-06T17:47:00.351730Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: allocated package support memory linked_end=322556 profile_bytes=364 exchange_table_bytes=11312 host_code_bytes=1232 generated_code_bytes=4252 code_address=409600 standard_ranges=[(425984, 524288)]
2026-09-06T17:47:00.918628Z  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=566 success=true
2026-09-06T17:47:00.927738Z  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
2026-09-06T17:47:00.964808Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:47:00.964843Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:47:00.965830Z  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=35 row_words=14 horizon=7802
2026-09-06T17:47:00.976241Z  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
2026-09-06T17:47:01.014320Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:47:01.014361Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T17:47:01.015419Z  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=35 row_words=14 horizon=7802
2026-09-06T17:47:01.025829Z  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
2026-09-06T17:47:01.039843Z  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
2026-09-06T17:47:01.040665Z  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=1422 maximum_identical_destinations=1
2026-09-06T17:47:01.040683Z  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=7802 selected_horizon=7802 endpoint_lower_bound=7680 lower_bound_gap=122 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:47:01.041700Z  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=35 row_words=14 horizon=7802
2026-09-06T17:47:07.412328Z  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
2026-09-06T17:47:07.445423Z  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=62278 maximum_identical_destinations=1
2026-09-06T17:47:07.445455Z  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=2422 selected_horizon=2422 endpoint_lower_bound=1472 lower_bound_gap=950 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:47:07.527820Z  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=19 row_words=697 horizon=2422
2026-09-06T17:47:15.824792Z  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
2026-09-06T17:47:15.858721Z  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=61202 maximum_identical_destinations=1
2026-09-06T17:47:15.858757Z  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=2759 selected_horizon=2759 endpoint_lower_bound=1536 lower_bound_gap=1223 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:47:15.955131Z  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=55 row_words=871 horizon=2759
2026-09-06T17:47:23.250566Z  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
2026-09-06T17:47:23.283422Z  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=63784 maximum_identical_destinations=1
2026-09-06T17:47:23.283457Z  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=3362 selected_horizon=3362 endpoint_lower_bound=1472 lower_bound_gap=1890 selected_kind="reused" neighborhood_improvements=0
2026-09-06T17:47:23.359438Z  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=217 row_words=704 horizon=3362
2026-09-06T17:47:23.492227Z  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=9
2026-09-06T17:47:23.623135Z  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=10
2026-09-06T17:47:23.753510Z  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=11
2026-09-06T17:47:23.881176Z  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=12
2026-09-06T17:47:24.008273Z  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=13
2026-09-06T17:47:24.137156Z  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=14
2026-09-06T17:47:24.265013Z  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=15
2026-09-06T17:47:24.392123Z  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=16
2026-09-06T17:47:24.518517Z  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=17
2026-09-06T17:47:24.643278Z  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=18
2026-09-06T17:47:24.768442Z  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=19
2026-09-06T17:47:24.893613Z  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=20
2026-09-06T17:47:24.913620Z  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=23994 success=true
2026-09-06T17:47:29.998697Z  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=5085 success=true
2026-09-06T17:47:30.017660Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: costed final placed program final_cycles=579258 final_exchange=131490
2026-09-06T17:47:30.394062Z  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=222 success=true
2026-09-06T17:47:30.544582Z  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=150 success=true
2026-09-06T17:47:31.095719Z  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=486 success=true
2026-09-06T17:47:31.257196Z  INFO writing application package tiles=1472
2026-09-06T17:47:31.417414Z  INFO application package written
2026-09-06T17:47:31.417851Z  INFO reading application package
2026-09-06T17:47:31.730259Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T17:47:31.730773Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:47:31.730795Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T17:47:31.730801Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T17:47:31.730852Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T17:47:31.730856Z  INFO initializing IPU device
2026-09-06T17:47:31.738723Z  INFO IPU device initialized
2026-09-06T17:47:31.738729Z  INFO replaying device configuration register_writes=2003
2026-09-06T17:47:31.747897Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T17:47:31.992241Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T17:47:32.008899Z  INFO starting host exchange session startup_mark=23
2026-09-06T17:47:32.008941Z  INFO attaching host exchange pages pages=2
2026-09-06T17:47:32.009556Z  INFO host exchange session started
2026-09-06T17:47:32.009582Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=16
2026-09-06T17:47:32.013835Z  INFO invoking streaming host exchange call call="run" command=0 phases=19
profile=artifacts/layout-sweep/attention-packed-flash/execution.ipuprofile tiles=1472 samples=112790
Error: projected attention numerical verification failed: checks=839808 mismatches=839808 expected=0.999756 maximumError=0.043218 firstMismatch=Some((0, 0, 0, 0, 1.0429741)) mismatchesByColumn=[11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664, 11664]