2026-09-06T18:25:11.469275Z 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=[] 2026-09-06T18:25:11.489352Z 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=[] 2026-09-06T18:25:11.492856Z INFO retained operator-plan finalist finalist=2 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))] 2026-09-06T18:25:11.513289Z INFO retained operator-plan finalist finalist=3 values=12 operations=8 estimated_cycles=645074 estimated_exchange_cycles=214040 exchange_row_bytes=44360 peak_standard_bytes=126280 peak_interleaved_bytes=327680 peak_total_bytes=453960 maximum_standard_allocation_bytes=49152 active_tile_counts={192, 480, 1440, 1472} padding_group_counts={16} conversion_sources=[Some(OperationId(2))] 2026-09-06T18:25:14.121335Z 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=[] 2026-09-06T18:25:14.141417Z 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=[] 2026-09-06T18:25:14.161499Z 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=[] 2026-09-06T18:25:14.182996Z 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=[] 2026-09-06T18:25:14.273306Z 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=6233 success=true 2026-09-06T18:25:14.445454Z ERROR tensor view falls outside its storage shard layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1472, replicas: 32, axes: [AxisTiling { axis: FromEnd(2), partitions: 46, padding_groups: 1, block_size: 1, padding_multiple: 1, shard_padding_multiple: 16, padding: Zero, tile_stride: Some(32) }, AxisTiling { axis: FromEnd(1), partitions: 1, padding_groups: 1, block_size: 64, padding_multiple: 64, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } shard_extents=[ShardExtent { axis: 0, start: 0, logical_end: 1, physical_end: 1 }, ShardExtent { axis: 1, start: 714, logical_end: 729, physical_end: 730 }, ShardExtent { axis: 2, start: 0, logical_end: 1152, physical_end: 1152 }] view_extents=[ShardExtent { axis: 0, start: 0, logical_end: 1, physical_end: 1 }, ShardExtent { axis: 1, start: 730, logical_end: 730, physical_end: 731 }, ShardExtent { axis: 2, start: 0, logical_end: 16, physical_end: 16 }] 2026-09-06T18:25:32.319573Z INFO screened tile mappings by exchange resource load candidates=65 baseline_cycles=86432 candidate_cycles=82976 baseline_pressure=77438 candidate_pressure=73982 2026-09-06T18:25:32.465473Z INFO modelled expanded operator plan finalist=5 modelled_cycles=427176 estimated_cycles=496128 estimated_exchange_cycles=164528 2026-09-06T18:25:35.114902Z INFO screened tile mappings by exchange resource load candidates=89 baseline_cycles=82592 candidate_cycles=82592 baseline_pressure=76444 candidate_pressure=76444 2026-09-06T18:25:35.131558Z INFO screened tile mappings by exchange resource load candidates=89 baseline_cycles=82592 candidate_cycles=82592 baseline_pressure=76444 candidate_pressure=76444 2026-09-06T18:25:35.288572Z INFO modelled expanded operator plan finalist=0 modelled_cycles=420094 estimated_cycles=489206 estimated_exchange_cycles=164304 2026-09-06T18:25:35.294861Z INFO modelled expanded operator plan finalist=4 modelled_cycles=412462 estimated_cycles=481574 estimated_exchange_cycles=164304 2026-09-06T18:25:42.194854Z INFO screened tile mappings by exchange resource load candidates=111 baseline_cycles=79744 candidate_cycles=79744 baseline_pressure=73041 candidate_pressure=73041 2026-09-06T18:25:42.398624Z INFO modelled expanded operator plan finalist=3 modelled_cycles=533419 estimated_cycles=590763 estimated_exchange_cycles=147288 2026-09-06T18:25:53.718436Z INFO screened tile mappings by exchange resource load candidates=123 baseline_cycles=82368 candidate_cycles=82368 baseline_pressure=77046 candidate_pressure=77046 2026-09-06T18:25:54.054966Z INFO modelled expanded operator plan finalist=1 modelled_cycles=735835 estimated_cycles=1172227 estimated_exchange_cycles=531360 2026-09-06T18:25:54.055794Z INFO ipu_codegen.package.build{tile_count=1472 operations=7}:ipu_codegen.package.phase{phase="select_finalist"}: rejected infeasible operator-plan finalist finalist=2 error=tile scheduling failed: invalid tensor storage view: view extents are not a valid subset of the shard 2026-09-06T18:25:54.101888Z 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 2026-09-06T18:25:54.101939Z 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 2026-09-06T18:25:54.103428Z 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 2026-09-06T18:25:54.143723Z 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 2026-09-06T18:25:54.143765Z 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 2026-09-06T18:25:54.144845Z 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 2026-09-06T18:25:54.175495Z 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 2026-09-06T18:25:54.175540Z 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 2026-09-06T18:25:54.176615Z 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 2026-09-06T18:25:55.387554Z 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 2026-09-06T18:25:55.387609Z 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 2026-09-06T18:25:55.404285Z 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 2026-09-06T18:26:08.224267Z 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 2026-09-06T18:26:08.224338Z 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 2026-09-06T18:26:08.297124Z 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 2026-09-06T18:26:08.583375Z 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 2026-09-06T18:26:08.583417Z 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=3913 selected_horizon=3913 endpoint_lower_bound=3072 lower_bound_gap=841 selected_kind="full-duplex" neighborhood_improvements=0 2026-09-06T18:26:08.594504Z 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=60 row_words=84 horizon=3913 2026-09-06T18:26:11.117378Z 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=481574 analytical_exchange_cycles=164304 scheduled_exchange_cycles=101736 refined_cycles=419006 2026-09-06T18:26:11.534309Z 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 2026-09-06T18:26:11.534363Z 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=57260 success=true 2026-09-06T18:26:11.534388Z INFO ipu_codegen.package.build{tile_count=1472 operations=7}: lowered graph for package construction logical_shards=136188 exchange_phases=21 2026-09-06T18:26:11.535493Z 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 2026-09-06T18:26:11.553795Z 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=18 success=true 2026-09-06T18:26:11.555123Z 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=1 success=true 2026-09-06T18:26:11.556711Z 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 2026-09-06T18:26:13.028984Z 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 2026-09-06T18:26:13.029042Z INFO ipu_codegen.package.build{tile_count=1472 operations=7}: allocated package support memory linked_end=323060 profile_bytes=364 exchange_table_bytes=5568 host_code_bytes=4744 generated_code_bytes=4364 code_address=414344 standard_ranges=[(425984, 524288)] 2026-09-06T18:26:13.623828Z 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=594 success=true 2026-09-06T18:26:13.628594Z 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 2026-09-06T18:26:13.639632Z 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 2026-09-06T18:26:13.640381Z 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 2026-09-06T18:26:13.640398Z 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 2026-09-06T18:26:13.641635Z 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 2026-09-06T18:26:13.646642Z 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 2026-09-06T18:26:13.658283Z 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 2026-09-06T18:26:13.658981Z 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 2026-09-06T18:26:13.658994Z 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 2026-09-06T18:26:13.660158Z 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 2026-09-06T18:26:13.665314Z 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 2026-09-06T18:26:13.676925Z 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 2026-09-06T18:26:13.677683Z 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 2026-09-06T18:26:13.677699Z 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 2026-09-06T18:26:13.679168Z 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 2026-09-06T18:26:14.207922Z 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 2026-09-06T18:26:14.218247Z 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 2026-09-06T18:26:14.218273Z 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 2026-09-06T18:26:14.233820Z 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 2026-09-06T18:26:20.101470Z 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 2026-09-06T18:26:20.139342Z 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 2026-09-06T18:26:20.139379Z 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 2026-09-06T18:26:20.204713Z 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 2026-09-06T18:26:20.356669Z 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 2026-09-06T18:26:20.365630Z 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 2026-09-06T18:26:20.365653Z 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=3913 selected_horizon=3913 endpoint_lower_bound=3072 lower_bound_gap=841 selected_kind="reused" neighborhood_improvements=0 2026-09-06T18:26:20.376838Z 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=60 row_words=84 horizon=3913 2026-09-06T18:26:20.403722Z 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 2026-09-06T18:26:20.511904Z 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 2026-09-06T18:26:20.647544Z 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 2026-09-06T18:26:20.814539Z 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 2026-09-06T18:26:20.939332Z 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 2026-09-06T18:26:21.065708Z 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 2026-09-06T18:26:21.191248Z 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 2026-09-06T18:26:21.336731Z 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 2026-09-06T18:26:21.459698Z 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 2026-09-06T18:26:21.580457Z 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 2026-09-06T18:26:21.700965Z 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 2026-09-06T18:26:21.825852Z 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 2026-09-06T18:26:21.844697Z 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=8220 success=true 2026-09-06T18:26:27.047667Z 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 2026-09-06T18:26:27.060577Z 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 2026-09-06T18:26:27.061403Z 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 2026-09-06T18:26:27.061421Z 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 2026-09-06T18:26:27.062506Z 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 2026-09-06T18:26:27.067890Z 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 2026-09-06T18:26:27.078982Z 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 2026-09-06T18:26:27.079670Z 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 2026-09-06T18:26:27.079686Z 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 2026-09-06T18:26:27.080747Z 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 2026-09-06T18:26:27.085810Z 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 2026-09-06T18:26:27.098328Z 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 2026-09-06T18:26:27.099264Z 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 2026-09-06T18:26:27.099284Z 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 2026-09-06T18:26:27.100410Z 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 2026-09-06T18:26:27.636819Z 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 2026-09-06T18:26:27.655970Z 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 2026-09-06T18:26:27.656005Z 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 2026-09-06T18:26:27.671767Z 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 2026-09-06T18:26:33.701576Z 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 2026-09-06T18:26:33.735430Z 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 2026-09-06T18:26:33.735464Z 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 2026-09-06T18:26:33.800988Z 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 2026-09-06T18:26:34.226241Z 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 2026-09-06T18:26:34.226303Z 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=3890 selected_horizon=3890 endpoint_lower_bound=3072 lower_bound_gap=818 selected_kind="full-duplex" neighborhood_improvements=0 2026-09-06T18:26:34.237542Z 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=60 row_words=83 horizon=3890 2026-09-06T18:26:34.277718Z 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 2026-09-06T18:26:34.450609Z 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 2026-09-06T18:26:34.584959Z 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 2026-09-06T18:26:34.713755Z 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 2026-09-06T18:26:34.828690Z 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 2026-09-06T18:26:34.971871Z 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 2026-09-06T18:26:35.111076Z 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 2026-09-06T18:26:35.239527Z 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 2026-09-06T18:26:35.367242Z 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 2026-09-06T18:26:35.500016Z 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 2026-09-06T18:26:35.625755Z 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 2026-09-06T18:26:35.750057Z 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 2026-09-06T18:26:35.807188Z 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=22092996608 score=12477554688 baseline_cycles=89136 candidate_cycles=89113 row_bytes=5568 row_capacity=16320 accepted=true 2026-09-06T18:26:35.841186Z 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=13996 success=true 2026-09-06T18:26:35.874680Z INFO ipu_codegen.package.build{tile_count=1472 operations=7}: costed final placed program final_cycles=418983 final_exchange=101713 2026-09-06T18:26:36.713047Z 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=69 success=true 2026-09-06T18:26:36.754162Z 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=41 success=true 2026-09-06T18:26:36.997560Z 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=220 success=true 2026-09-06T18:26:37.207780Z INFO writing application package tiles=1472 2026-09-06T18:26:37.342915Z INFO application package written exchangeSchedule=/dev/null tiles=1472 phases=21 transfers=94007