2026-09-06T19:31:09.730790Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=510698 estimated_exchange_cycles=217560 exchange_row_bytes=44628 peak_standard_bytes=351828 peak_interleaved_bytes=53248 peak_total_bytes=396884 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T19:31:09.750901Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=516944 estimated_exchange_cycles=219000 exchange_row_bytes=44952 peak_standard_bytes=183448 peak_interleaved_bytes=53248 peak_total_bytes=220120 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 480, 1472} padding_group_counts={16} conversion_sources=[]
2026-09-06T19:31:09.754531Z  INFO retained operator-plan finalist finalist=2 values=12 operations=8 estimated_cycles=572774 estimated_exchange_cycles=222240 exchange_row_bytes=45812 peak_standard_bytes=176884 peak_interleaved_bytes=196416 peak_total_bytes=356148 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 480, 1472} padding_group_counts={16} conversion_sources=[Some(OperationId(2))]
2026-09-06T19:31:09.764043Z  INFO retained operator-plan finalist finalist=3 values=13 operations=9 estimated_cycles=607121 estimated_exchange_cycles=202440 exchange_row_bytes=41488 peak_standard_bytes=287248 peak_interleaved_bytes=180224 peak_total_bytes=467472 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1380, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(2))]
2026-09-06T19:31:12.229888Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=510698 estimated_exchange_cycles=217560 exchange_row_bytes=44628 peak_standard_bytes=351828 peak_interleaved_bytes=53248 peak_total_bytes=396884 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T19:31:12.249936Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=510698 estimated_exchange_cycles=217560 exchange_row_bytes=44628 peak_standard_bytes=339540 peak_interleaved_bytes=61056 peak_total_bytes=396884 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 460, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T19:31:12.269901Z  INFO retained operator-plan finalist finalist=2 values=11 operations=7 estimated_cycles=516200 estimated_exchange_cycles=225240 exchange_row_bytes=46356 peak_standard_bytes=350484 peak_interleaved_bytes=53248 peak_total_bytes=392468 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 368, 1472} padding_group_counts={} conversion_sources=[]
2026-09-06T19:31:12.291195Z  INFO retained operator-plan finalist finalist=3 values=11 operations=7 estimated_cycles=516944 estimated_exchange_cycles=219000 exchange_row_bytes=44952 peak_standard_bytes=183448 peak_interleaved_bytes=53248 peak_total_bytes=220120 maximum_standard_allocation_bytes=98304 active_tile_counts={192, 480, 1472} padding_group_counts={16} conversion_sources=[]
2026-09-06T19:31:12.409667Z  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=5834 success=true
2026-09-06T19:31:27.498550Z  INFO screened tile mappings by exchange resource load candidates=65 baseline_cycles=86432 candidate_cycles=82976 baseline_pressure=77979 candidate_pressure=74523
2026-09-06T19:31:27.593905Z  INFO modelled expanded operator plan finalist=5 modelled_cycles=403752 estimated_cycles=472704 estimated_exchange_cycles=164528
2026-09-06T19:31:32.857819Z  INFO screened tile mappings by exchange resource load candidates=89 baseline_cycles=82592 candidate_cycles=82592 baseline_pressure=76986 candidate_pressure=76986
2026-09-06T19:31:32.968100Z  INFO screened tile mappings by exchange resource load candidates=89 baseline_cycles=82592 candidate_cycles=82592 baseline_pressure=76986 candidate_pressure=76986
2026-09-06T19:31:33.020509Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=396670 estimated_cycles=465782 estimated_exchange_cycles=164304
2026-09-06T19:31:33.119082Z  INFO modelled expanded operator plan finalist=4 modelled_cycles=389038 estimated_cycles=458150 estimated_exchange_cycles=164304
2026-09-06T19:31:34.242398Z  INFO screened tile mappings by exchange resource load candidates=93 baseline_cycles=88160 candidate_cycles=88160 baseline_pressure=72863 candidate_pressure=72863
2026-09-06T19:31:34.431231Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=504325 estimated_cycles=596653 estimated_exchange_cycles=191888
2026-09-06T19:31:49.974401Z  INFO screened tile mappings by exchange resource load candidates=123 baseline_cycles=95104 candidate_cycles=95104 baseline_pressure=77592 candidate_pressure=77592
2026-09-06T19:31:50.288800Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=642507 estimated_cycles=973163 estimated_exchange_cycles=437760
2026-09-06T19:31:52.433690Z  INFO screened tile mappings by exchange resource load candidates=123 baseline_cycles=82368 candidate_cycles=82368 baseline_pressure=77610 candidate_pressure=77610
2026-09-06T19:31:52.764386Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=697003 estimated_cycles=1133395 estimated_exchange_cycles=531360
2026-09-06T19:31:52.789442Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:31:52.789481Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:31:52.790158Z  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=367 row_words=11 horizon=2913
2026-09-06T19:31:52.819614Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:31:52.819649Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:31:52.820704Z  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=367 row_words=11 horizon=2913
2026-09-06T19:31:52.844119Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:31:52.844147Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:31:52.844841Z  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=367 row_words=11 horizon=2913
2026-09-06T19:31:53.653270Z  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=18209 maximum_identical_destinations=1
2026-09-06T19:31:53.653309Z  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=1702 selected_horizon=1702 endpoint_lower_bound=928 lower_bound_gap=774 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:31:53.663357Z  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=380 row_words=125 horizon=1702
2026-09-06T19:32:02.417694Z  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=62630 maximum_identical_destinations=1
2026-09-06T19:32:02.417739Z  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=4115 selected_horizon=4115 endpoint_lower_bound=928 lower_bound_gap=3187 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:32:02.459627Z  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=190 row_words=581 horizon=4115
2026-09-06T19:32:02.754179Z  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=4272 maximum_identical_destinations=1
2026-09-06T19:32:02.754245Z  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=4011 selected_horizon=4011 endpoint_lower_bound=3072 lower_bound_gap=939 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:32:02.763293Z  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=52 row_words=80 horizon=4011
2026-09-06T19:32:04.962356Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=4 mapped=false analytical_cycles=458150 analytical_exchange_cycles=164304 scheduled_exchange_cycles=102250 refined_cycles=396096
2026-09-06T19:32:05.484157Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=4 mapped=false
2026-09-06T19:32:05.484233Z  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=53074 success=true
2026-09-06T19:32:05.484252Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: lowered graph for package construction logical_shards=136188 exchange_phases=21
2026-09-06T19:32:05.485391Z  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
2026-09-06T19:32:05.501080Z  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=15 success=true
2026-09-06T19:32:05.501618Z  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_transposed_amp_f16.S name="unpack_transposed_amp_f16_o1_r9_p16_c114_p114" target=ipu21
2026-09-06T19:32:05.574790Z  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/c52bf6013a78a9a4acadffbad22ce24c2e093828deba51f8bb90b282e8e91d9f/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/c52bf6013a78a9a4acadffbad22ce24c2e093828deba51f8bb90b282e8e91d9f/kernel.json
2026-09-06T19:32:05.574994Z  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_transposed_amp_f16.S name="unpack_transposed_amp_f16_o1_r9_p16_c116_p116" target=ipu21
2026-09-06T19:32:05.632640Z  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/a5d17174e69b8488dd5f92d8a08be80fb5aad794584d4b50fed09e4fa108eff0/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/a5d17174e69b8488dd5f92d8a08be80fb5aad794584d4b50fed09e4fa108eff0/kernel.json
2026-09-06T19:32:05.632970Z  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_transposed_amp_f16.S name="unpack_transposed_amp_f16_o1_r16_p16_c114_p114" target=ipu21
2026-09-06T19:32:05.693963Z  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/3fe51830b2153d9fb7d0cc3eb98132a8b1146bea5f59981a37911da38418271f/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/3fe51830b2153d9fb7d0cc3eb98132a8b1146bea5f59981a37911da38418271f/kernel.json
2026-09-06T19:32:05.694314Z  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_transposed_amp_f16.S name="unpack_transposed_amp_f16_o1_r16_p16_c116_p116" target=ipu21
2026-09-06T19:32:05.747379Z  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/4d468bb3c6f75cd6107a0feef21c8d3533d829be586e3b4949d26e2520d7a280/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/4d468bb3c6f75cd6107a0feef21c8d3533d829be586e3b4949d26e2520d7a280/kernel.json
2026-09-06T19:32:05.748986Z  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=247 success=true
2026-09-06T19:32:05.759662Z  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
2026-09-06T19:32:07.241120Z  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=17 success=true
2026-09-06T19:32:07.241177Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: allocated package support memory linked_end=322940 profile_bytes=360 exchange_table_bytes=4896 host_code_bytes=4744 generated_code_bytes=4256 code_address=414344 standard_ranges=[(425984, 524288)]
2026-09-06T19:32:07.755192Z  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=513 success=true
2026-09-06T19:32:07.761165Z  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
2026-09-06T19:32:07.778218Z  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=1
2026-09-06T19:32:07.778804Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:32:07.778815Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:07.779859Z  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=367 row_words=11 horizon=2913
2026-09-06T19:32:07.784290Z  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
2026-09-06T19:32:07.799069Z  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=3
2026-09-06T19:32:07.799648Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:32:07.799659Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:07.800648Z  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=367 row_words=11 horizon=2913
2026-09-06T19:32:07.805151Z  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
2026-09-06T19:32:07.815841Z  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
2026-09-06T19:32:07.816426Z  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=1334 maximum_identical_destinations=1
2026-09-06T19:32:07.816437Z  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=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:07.817440Z  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=367 row_words=11 horizon=2913
2026-09-06T19:32:08.336946Z  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
2026-09-06T19:32:08.346907Z  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=18209 maximum_identical_destinations=1
2026-09-06T19:32:08.346925Z  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=1702 selected_horizon=1702 endpoint_lower_bound=928 lower_bound_gap=774 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:08.362376Z  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=380 row_words=125 horizon=1702
2026-09-06T19:32:14.482233Z  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
2026-09-06T19:32:14.528135Z  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=62630 maximum_identical_destinations=1
2026-09-06T19:32:14.528177Z  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=4115 selected_horizon=4115 endpoint_lower_bound=928 lower_bound_gap=3187 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:14.592036Z  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=190 row_words=581 horizon=4115
2026-09-06T19:32:14.740766Z  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
2026-09-06T19:32:14.749787Z  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=4272 maximum_identical_destinations=1
2026-09-06T19:32:14.749808Z  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=4011 selected_horizon=4011 endpoint_lower_bound=3072 lower_bound_gap=939 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:14.759019Z  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=52 row_words=80 horizon=4011
2026-09-06T19:32:14.788447Z  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
2026-09-06T19:32:14.902681Z  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
2026-09-06T19:32:15.029059Z  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
2026-09-06T19:32:15.149895Z  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
2026-09-06T19:32:15.275807Z  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
2026-09-06T19:32:15.396906Z  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
2026-09-06T19:32:15.519230Z  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
2026-09-06T19:32:15.641032Z  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
2026-09-06T19:32:15.763866Z  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
2026-09-06T19:32:15.879015Z  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
2026-09-06T19:32:15.995197Z  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
2026-09-06T19:32:16.118598Z  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
2026-09-06T19:32:16.134731Z  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=8379 success=true
2026-09-06T19:32:20.698993Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T19:32:20.715974Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T19:32:20.717053Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=1 transfers=1334 maximum_identical_destinations=1
2026-09-06T19:32:20.717073Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=1 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:20.718121Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=1 tile=367 row_words=11 horizon=2913
2026-09-06T19:32:20.724665Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T19:32:20.743112Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=3
2026-09-06T19:32:20.744004Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=3 transfers=1334 maximum_identical_destinations=1
2026-09-06T19:32:20.744024Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=3 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:20.745920Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=3 tile=367 row_words=11 horizon=2913
2026-09-06T19:32:20.751404Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=4
2026-09-06T19:32:20.762409Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=5
2026-09-06T19:32:20.763013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=5 transfers=1334 maximum_identical_destinations=1
2026-09-06T19:32:20.763023Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=5 initial_horizon=2913 selected_horizon=2913 endpoint_lower_bound=2784 lower_bound_gap=129 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:20.764052Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=5 tile=367 row_words=11 horizon=2913
2026-09-06T19:32:21.275679Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=6
2026-09-06T19:32:21.285305Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=6 transfers=18209 maximum_identical_destinations=1
2026-09-06T19:32:21.285326Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=6 initial_horizon=1702 selected_horizon=1702 endpoint_lower_bound=928 lower_bound_gap=774 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:21.300756Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=6 tile=380 row_words=125 horizon=1702
2026-09-06T19:32:26.573220Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=7
2026-09-06T19:32:26.600786Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=7 transfers=62630 maximum_identical_destinations=1
2026-09-06T19:32:26.600817Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=7 initial_horizon=4115 selected_horizon=4115 endpoint_lower_bound=928 lower_bound_gap=3187 selected_kind="reused" neighborhood_improvements=0
2026-09-06T19:32:26.640680Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=7 tile=190 row_words=581 horizon=4115
2026-09-06T19:32:26.927332Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=8 transfers=4272 maximum_identical_destinations=1
2026-09-06T19:32:26.927372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=8 initial_horizon=4011 selected_horizon=4011 endpoint_lower_bound=3072 lower_bound_gap=939 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T19:32:26.933241Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=8 tile=52 row_words=80 horizon=4011
2026-09-06T19:32:26.954366Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=9
2026-09-06T19:32:27.064689Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=10
2026-09-06T19:32:27.190708Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=11
2026-09-06T19:32:27.322345Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=12
2026-09-06T19:32:27.443920Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=13
2026-09-06T19:32:27.569015Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=14
2026-09-06T19:32:27.684700Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=15
2026-09-06T19:32:27.805980Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=16
2026-09-06T19:32:27.939112Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=17
2026-09-06T19:32:28.061282Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=18
2026-09-06T19:32:28.184623Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=19
2026-09-06T19:32:28.311411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=20
2026-09-06T19:32:28.359651Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: evaluated exchange placement finalist offset=20480 baseline_score=22698024960 score=12802351104 baseline_cycles=89650 candidate_cycles=89650 row_bytes=4896 row_capacity=16320 accepted=false
2026-09-06T19:32:28.394509Z  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=12259 success=true
2026-09-06T19:32:28.415586Z  INFO ipu_codegen.package.build{tile_count=1472 operations=7}: costed final placed program final_cycles=396096 final_exchange=102250
2026-09-06T19:32:29.248624Z  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=64 success=true
2026-09-06T19:32:29.298846Z  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=50 success=true
2026-09-06T19:32:29.522629Z  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=201 success=true
2026-09-06T19:32:29.748535Z  INFO writing application package tiles=1472
2026-09-06T19:32:29.941574Z  INFO application package written
2026-09-06T19:32:29.945027Z  INFO reading application package
2026-09-06T19:32:30.398834Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-06T19:32:30.407048Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T19:32:30.407070Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-06T19:32:30.407075Z  INFO opening IPU device path="/dev/ipu0"
2026-09-06T19:32:30.407116Z  INFO IPU device attached path=/dev/ipu0
2026-09-06T19:32:30.407120Z  INFO initializing IPU device
2026-09-06T19:32:30.415173Z  INFO IPU device initialized
2026-09-06T19:32:30.415251Z  INFO replaying device configuration register_writes=2003
2026-09-06T19:32:30.433490Z  INFO loading application tile_count=1472 final_mark=23
2026-09-06T19:32:30.857186Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-06T19:32:40.205720Z  INFO starting host exchange session startup_mark=23
2026-09-06T19:32:40.205767Z  INFO attaching host exchange pages pages=2
2026-09-06T19:32:40.206430Z  INFO host exchange session started
2026-09-06T19:32:40.207305Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=132
2026-09-06T19:32:40.323196Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
profile=artifacts/layout-sweep/attention-unpack-fixed/execution.ipuprofile tiles=1472 samples=113888
attentionNumericalChecks=839808 expected=0.999756 maxError=0.001230 numericalTest=PASS
package=artifacts/layout-sweep/attention-unpack-fixed/model.ipuexe tiles=1472 hardwareTest=PASS