2026-09-06T13:04:12.066270Z  INFO retained operator-plan finalist finalist=0 values=7 operations=4 estimated_cycles=234866 estimated_exchange_cycles=102520 exchange_row_bytes=22412 peak_standard_bytes=224140 peak_interleaved_bytes=87040 peak_total_bytes=272268 maximum_standard_allocation_bytes=180224 active_tile_counts={1404, 1470} padding_group_counts={} conversion_sources=[Some(OperationId(2))]
2026-09-06T13:04:12.072235Z  INFO retained operator-plan finalist finalist=1 values=7 operations=4 estimated_cycles=236830 estimated_exchange_cycles=109080 exchange_row_bytes=23888 peak_standard_bytes=160080 peak_interleaved_bytes=87040 peak_total_bytes=239440 maximum_standard_allocation_bytes=114688 active_tile_counts={1404, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(2))]
2026-09-06T13:04:12.078071Z  INFO retained operator-plan finalist finalist=2 values=7 operations=4 estimated_cycles=237698 estimated_exchange_cycles=106840 exchange_row_bytes=23384 peak_standard_bytes=224088 peak_interleaved_bytes=53248 peak_total_bytes=272216 maximum_standard_allocation_bytes=180224 active_tile_counts={1458, 1470} padding_group_counts={} conversion_sources=[Some(OperationId(2))]
2026-09-06T13:04:12.084024Z  INFO retained operator-plan finalist finalist=3 values=7 operations=4 estimated_cycles=239662 estimated_exchange_cycles=113400 exchange_row_bytes=24860 peak_standard_bytes=160028 peak_interleaved_bytes=79360 peak_total_bytes=239388 maximum_standard_allocation_bytes=114688 active_tile_counts={1458, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(2))]
2026-09-06T13:04:12.740393Z  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=14652 success=true
2026-09-06T13:04:15.112172Z  INFO eliminated finite GEMM padding clears using load-time SRAM initialization removed=24
2026-09-06T13:04:15.145767Z  INFO eliminated finite GEMM padding clears using load-time SRAM initialization removed=24
2026-09-06T13:04:15.344799Z  INFO eliminated finite GEMM padding clears using load-time SRAM initialization removed=36
2026-09-06T13:04:15.357886Z  INFO eliminated finite GEMM padding clears using load-time SRAM initialization removed=36
2026-09-06T13:04:20.982520Z  INFO screened tile mappings by exchange resource load candidates=52 baseline_cycles=55264 candidate_cycles=55264 baseline_pressure=42319 candidate_pressure=42319
2026-09-06T13:04:21.116398Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=177420 estimated_cycles=206964 estimated_exchange_cycles=87208
2026-09-06T13:04:21.817753Z  INFO screened tile mappings by exchange resource load candidates=74 baseline_cycles=57408 candidate_cycles=53184 baseline_pressure=38248 candidate_pressure=44275
2026-09-06T13:04:21.924432Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=179272 estimated_cycles=205680 estimated_exchange_cycles=81992
2026-09-06T13:04:22.285887Z  INFO screened tile mappings by exchange resource load candidates=75 baseline_cycles=59680 candidate_cycles=59680 baseline_pressure=45888 candidate_pressure=45888
2026-09-06T13:04:22.391003Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=185580 estimated_cycles=193588 estimated_exchange_cycles=70088
2026-09-06T13:04:22.738693Z  INFO screened tile mappings by exchange resource load candidates=97 baseline_cycles=59616 candidate_cycles=55712 baseline_pressure=41729 candidate_pressure=44771
2026-09-06T13:04:22.830815Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=185544 estimated_cycles=192304 estimated_exchange_cycles=64872
2026-09-06T13:04:23.019307Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: eliminated finite GEMM padding clears using load-time SRAM initialization removed=36
2026-09-06T13:04:24.478339Z  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=32280 maximum_identical_destinations=1
2026-09-06T13:04:24.478413Z  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=9994 selected_horizon=9600 endpoint_lower_bound=7776 lower_bound_gap=1824 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-06T13:04:24.507570Z  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=705 row_words=140 horizon=9600
2026-09-06T13:04:29.219771Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: compared ordinary and paired exchange schedules phase=2 candidates=4417 ordinary_horizon=29091 paired_horizon=22790 use_paired=true
2026-09-06T13:04:29.304777Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=2 transfers=5814 maximum_identical_destinations=1
2026-09-06T13:04:29.304812Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=2 initial_horizon=26271 selected_horizon=22790 endpoint_lower_bound=17280 lower_bound_gap=5510 selected_kind="critical-neighborhood" neighborhood_improvements=3
2026-09-06T13:04:29.346154Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=2 tile=934 row_words=227 horizon=22790
2026-09-06T13:05:02.396683Z  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=155880 maximum_identical_destinations=1
2026-09-06T13:05:02.396722Z  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=15700 selected_horizon=15700 endpoint_lower_bound=8640 lower_bound_gap=7060 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T13:05:02.514364Z  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=447 row_words=633 horizon=15700
2026-09-06T13:05:02.557373Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=3 mapped=false analytical_cycles=206964 analytical_exchange_cycles=87208 scheduled_exchange_cycles=54160 refined_cycles=173916
2026-09-06T13:05:02.573796Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=3 mapped=false
2026-09-06T13:05:02.573807Z  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=49833 success=true
2026-09-06T13:05:02.573815Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: lowered graph for package construction logical_shards=26518 exchange_phases=4
2026-09-06T13:05:02.574076Z  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
2026-09-06T13:05:02.574960Z  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=0 success=true
2026-09-06T13:05:02.575585Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: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_k144_c32_r364_r366" target=ipu21
2026-09-06T13:05:02.628926Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/b32a5a74111ad8fc66a3c96ee83add50a8beda75ed0c90bb58a10c71b7c4ca2d/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/b32a5a74111ad8fc66a3c96ee83add50a8beda75ed0c90bb58a10c71b7c4ca2d/kernel.json
2026-09-06T13:05:02.630054Z  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=55 success=true
2026-09-06T13:05:02.631762Z  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
2026-09-06T13:05:02.739402Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="plan_exchange_storage"}: package build phase finished phase="plan_exchange_storage" elapsed_ms=107 success=true
2026-09-06T13:05:02.745080Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T13:05:02.979472Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T13:05:02.993125Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: prepared large physical exchange phase phase=1 transfers=32280 maximum_identical_destinations=1
2026-09-06T13:05:02.993148Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: optimized physical exchange schedule phase=1 initial_horizon=9600 selected_horizon=9600 endpoint_lower_bound=7776 lower_bound_gap=1824 selected_kind="reused" neighborhood_improvements=0
2026-09-06T13:05:03.020423Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: finished large physical exchange phase phase=1 tile=705 row_words=140 horizon=9600
2026-09-06T13:05:03.682099Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: reused exchange optimization after validating relocated rows phase=2
2026-09-06T13:05:03.701576Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: prepared large physical exchange phase phase=2 transfers=5814 maximum_identical_destinations=1
2026-09-06T13:05:03.701593Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: optimized physical exchange schedule phase=2 initial_horizon=22790 selected_horizon=22790 endpoint_lower_bound=17280 lower_bound_gap=5510 selected_kind="reused" neighborhood_improvements=0
2026-09-06T13:05:03.738149Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: finished large physical exchange phase phase=2 tile=934 row_words=227 horizon=22790
2026-09-06T13:05:40.972291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: prepared large physical exchange phase phase=3 transfers=155880 maximum_identical_destinations=1
2026-09-06T13:05:40.972328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: optimized physical exchange schedule phase=3 initial_horizon=15700 selected_horizon=15700 endpoint_lower_bound=8640 lower_bound_gap=7060 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T13:05:41.089448Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: finished large physical exchange phase phase=3 tile=447 row_words=633 horizon=15700
2026-09-06T13:05:41.125147Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges_provisional"}: package build phase finished phase="lower_exchanges_provisional" elapsed_ms=38385 success=true
2026-09-06T13:05:41.496638Z  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=4 success=true
2026-09-06T13:05:41.496667Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: allocated package support memory linked_end=318892 profile_bytes=100 exchange_table_bytes=3652 host_code_bytes=2272 generated_code_bytes=1408 code_address=321168 standard_ranges=[(409600, 524288)]
2026-09-06T13:05:41.599439Z  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=102 success=true
2026-09-06T13:05:41.605229Z  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
2026-09-06T13:05:41.835045Z  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
2026-09-06T13:05:41.848515Z  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=32280 maximum_identical_destinations=1
2026-09-06T13:05:41.848533Z  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=9600 selected_horizon=9600 endpoint_lower_bound=7776 lower_bound_gap=1824 selected_kind="reused" neighborhood_improvements=0
2026-09-06T13:05:41.879225Z  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=705 row_words=140 horizon=9600
2026-09-06T13:05:42.513231Z  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
2026-09-06T13:05:42.532859Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=5814 maximum_identical_destinations=1
2026-09-06T13:05:42.532878Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=22790 selected_horizon=22790 endpoint_lower_bound=17280 lower_bound_gap=5510 selected_kind="reused" neighborhood_improvements=0
2026-09-06T13:05:42.568684Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=934 row_words=227 horizon=22790
2026-09-06T13:06:21.621491Z  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=155880 maximum_identical_destinations=1
2026-09-06T13:06:21.621563Z  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=15700 selected_horizon=15700 endpoint_lower_bound=8640 lower_bound_gap=7060 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T13:06:21.816716Z  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=447 row_words=633 horizon=15700
2026-09-06T13:06:21.878729Z  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=40279 success=true
2026-09-06T13:06:23.399190Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=0
2026-09-06T13:06:23.649635Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=1
2026-09-06T13:06:23.665334Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=1 transfers=32280 maximum_identical_destinations=1
2026-09-06T13:06:23.665359Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=1 initial_horizon=9600 selected_horizon=9600 endpoint_lower_bound=7776 lower_bound_gap=1824 selected_kind="reused" neighborhood_improvements=0
2026-09-06T13:06:23.693396Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=1 tile=705 row_words=140 horizon=9600
2026-09-06T13:06:26.961177Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: compared ordinary and paired exchange schedules phase=2 candidates=4417 ordinary_horizon=28429 paired_horizon=21776 use_paired=true
2026-09-06T13:06:27.040013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=2 transfers=5814 maximum_identical_destinations=1
2026-09-06T13:06:27.040053Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=2 initial_horizon=21776 selected_horizon=21776 endpoint_lower_bound=17280 lower_bound_gap=4496 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T13:06:27.084050Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=2 tile=878 row_words=233 horizon=21776
2026-09-06T13:07:00.830009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=3 transfers=155880 maximum_identical_destinations=1
2026-09-06T13:07:00.830049Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=3 initial_horizon=15700 selected_horizon=15700 endpoint_lower_bound=8640 lower_bound_gap=7060 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-06T13:07:00.940035Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=3 tile=447 row_words=633 horizon=15700
2026-09-06T13:07:00.981506Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: evaluated exchange placement finalist offset=28672 baseline_score=127530434560 score=100812718080 baseline_cycles=51760 candidate_cycles=50746 row_bytes=3652 row_capacity=16320 accepted=true
2026-09-06T13:07:01.000377Z  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=39121 success=true
2026-09-06T13:07:01.185326Z  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=8 success=true
2026-09-06T13:07:01.193347Z  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=7 success=true
2026-09-06T13:07:01.259428Z  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=62 success=true
2026-09-06T13:07:01.315480Z  INFO writing application package tiles=1472
2026-09-06T13:07:01.338975Z  INFO application package written
exchangeSchedule=artifacts/layout-sweep/modelled-planning/final/exchange.json tiles=1472 phases=4 transfers=194710