2026-09-07T14:26:36.117071Z  INFO retained operator-plan finalist finalist=0 values=12 operations=9 estimated_cycles=307705 estimated_exchange_cycles=81520 exchange_row_bytes=17556 peak_standard_bytes=186004 peak_interleaved_bytes=79360 peak_total_bytes=232596 maximum_standard_allocation_bytes=163840 active_tile_counts={1440, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(1)), Some(OperationId(2)), Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T14:26:36.126033Z  INFO retained operator-plan finalist finalist=1 values=12 operations=9 estimated_cycles=319419 estimated_exchange_cycles=95440 exchange_row_bytes=20688 peak_standard_bytes=106704 peak_interleaved_bytes=83840 peak_total_bytes=186064 maximum_standard_allocation_bytes=81920 active_tile_counts={1440, 1449, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(1)), Some(OperationId(2)), Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T14:26:36.134803Z  INFO retained operator-plan finalist finalist=2 values=12 operations=9 estimated_cycles=323135 estimated_exchange_cycles=98480 exchange_row_bytes=21372 peak_standard_bytes=189820 peak_interleaved_bytes=153600 peak_total_bytes=299388 maximum_standard_allocation_bytes=163840 active_tile_counts={1470, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(1)), Some(OperationId(2)), Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T14:26:36.142271Z  INFO retained operator-plan finalist finalist=3 values=12 operations=9 estimated_cycles=323837 estimated_exchange_cycles=80240 exchange_row_bytes=17268 peak_standard_bytes=203636 peak_interleaved_bytes=79360 peak_total_bytes=250228 maximum_standard_allocation_bytes=180224 active_tile_counts={1380, 1440, 1472} padding_group_counts={} conversion_sources=[Some(OperationId(0)), Some(OperationId(0)), Some(OperationId(1)), Some(OperationId(2)), Some(OperationId(2)), Some(OperationId(2))]
2026-09-07T14:26:36.248016Z  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=10802 success=true
2026-09-07T14:26:39.448874Z  INFO screened tile mappings by exchange resource load candidates=88 baseline_cycles=33786 candidate_cycles=33786 baseline_pressure=29866 candidate_pressure=29866
2026-09-07T14:26:39.465251Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=332989 estimated_cycles=420315 estimated_exchange_cycles=124712
2026-09-07T14:26:39.697626Z  INFO screened tile mappings by exchange resource load candidates=110 baseline_cycles=35562 candidate_cycles=35562 baseline_pressure=29352 candidate_pressure=29352
2026-09-07T14:26:39.712745Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=337355 estimated_cycles=436377 estimated_exchange_cycles=138184
2026-09-07T14:26:39.990860Z  INFO screened tile mappings by exchange resource load candidates=94 baseline_cycles=42842 candidate_cycles=42842 baseline_pressure=35262 candidate_pressure=35262
2026-09-07T14:26:40.011828Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=348470 estimated_cycles=437716 estimated_exchange_cycles=135688
2026-09-07T14:26:44.274332Z  INFO screened tile mappings by exchange resource load candidates=48 baseline_cycles=40842 candidate_cycles=40842 baseline_pressure=32638 candidate_pressure=32638
2026-09-07T14:26:44.283095Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=191651 estimated_cycles=261553 estimated_exchange_cycles=114344
2026-09-07T14:26:44.466673Z  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=5704 maximum_identical_destinations=1
2026-09-07T14:26:44.466743Z  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=4454 selected_horizon=3492 endpoint_lower_bound=3360 lower_bound_gap=132 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-07T14:26:44.470465Z  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=522 row_words=38 horizon=3492
2026-09-07T14:26:44.788626Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=20286 maximum_identical_destinations=1
2026-09-07T14:26:44.788679Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=8169 selected_horizon=8165 endpoint_lower_bound=8064 lower_bound_gap=101 selected_kind="matching-waves" neighborhood_improvements=0
2026-09-07T14:26:44.799060Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=31 row_words=88 horizon=8165
2026-09-07T14:26:45.733957Z  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=24761 maximum_identical_destinations=1
2026-09-07T14:26:45.734030Z  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=3424 selected_horizon=3424 endpoint_lower_bound=1088 lower_bound_gap=2336 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:26:45.750587Z  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=1086 row_words=106 horizon=3424
2026-09-07T14:26:47.286749Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=0 transfers=26496 maximum_identical_destinations=1
2026-09-07T14:26:47.286813Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=0 initial_horizon=2612 selected_horizon=2612 endpoint_lower_bound=1152 lower_bound_gap=1460 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:26:47.305921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=0 tile=741 row_words=507 horizon=2612
2026-09-07T14:26:47.380550Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: rejected unschedulable operator-plan finalist finalist=2 mapped=false error=exchange lowering failed: exchange schedule is not encodable: unencodable initial send control
2026-09-07T14:26:47.647478Z  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=5704 maximum_identical_destinations=1
2026-09-07T14:26:47.647837Z  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=4454 selected_horizon=3492 endpoint_lower_bound=3360 lower_bound_gap=132 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-07T14:26:47.654957Z  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=522 row_words=38 horizon=3492
2026-09-07T14:26:48.640436Z  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=24761 maximum_identical_destinations=1
2026-09-07T14:26:48.640505Z  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=3332 selected_horizon=3332 endpoint_lower_bound=1088 lower_bound_gap=2244 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:26:48.652642Z  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=258 row_words=105 horizon=3332
2026-09-07T14:26:50.784632Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=0 transfers=26496 maximum_identical_destinations=1
2026-09-07T14:26:50.784700Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=0 initial_horizon=2612 selected_horizon=2612 endpoint_lower_bound=1152 lower_bound_gap=1460 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:26:50.815423Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=0 tile=741 row_words=507 horizon=2612
2026-09-07T14:26:56.813091Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=74200 maximum_identical_destinations=1
2026-09-07T14:26:56.813174Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=18482 selected_horizon=18482 endpoint_lower_bound=13680 lower_bound_gap=4802 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:26:56.883855Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=716 row_words=406 horizon=18482
2026-09-07T14:27:08.176991Z  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=34179 maximum_identical_destinations=1
2026-09-07T14:27:08.177185Z  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=14407 selected_horizon=14407 endpoint_lower_bound=8832 lower_bound_gap=5575 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:27:08.268898Z  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=137 row_words=617 horizon=14407
2026-09-07T14:27:08.391339Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=0 mapped=false analytical_cycles=420315 analytical_exchange_cycles=124712 scheduled_exchange_cycles=49513 refined_cycles=345116
2026-09-07T14:27:08.761685Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=0 mapped=false
2026-09-07T14:27:08.761738Z  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=32513 success=true
2026-09-07T14:27:08.761754Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: lowered graph for package construction logical_shards=38404 exchange_phases=6
2026-09-07T14:27:08.762103Z  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
2026-09-07T14:27:08.768192Z  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=6 success=true
2026-09-07T14:27:08.769109Z  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=0 success=true
2026-09-07T14:27:08.775798Z  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
2026-09-07T14:27:09.722091Z  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=19 success=true
2026-09-07T14:27:09.722156Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: allocated package support memory linked_end=318060 profile_bytes=1568 exchange_table_bytes=5820 host_code_bytes=3160 generated_code_bytes=16420 code_address=409600 standard_ranges=[(442368, 524288)]
2026-09-07T14:27:09.817556Z  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=95 success=true
2026-09-07T14:27:09.823499Z  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=4
2026-09-07T14:27:09.875944Z  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
2026-09-07T14:27:09.878759Z  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=5704 maximum_identical_destinations=1
2026-09-07T14:27:09.878787Z  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=3492 selected_horizon=3492 endpoint_lower_bound=3360 lower_bound_gap=132 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:09.882680Z  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=522 row_words=38 horizon=3492
2026-09-07T14:27:10.295569Z  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
2026-09-07T14:27:10.305803Z  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=24761 maximum_identical_destinations=1
2026-09-07T14:27:10.305835Z  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=3332 selected_horizon=3332 endpoint_lower_bound=1088 lower_bound_gap=2244 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:10.316848Z  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=258 row_words=105 horizon=3332
2026-09-07T14:27:11.245049Z  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
2026-09-07T14:27:11.287529Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=26496 maximum_identical_destinations=1
2026-09-07T14:27:11.287571Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=2612 selected_horizon=2612 endpoint_lower_bound=1152 lower_bound_gap=1460 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:11.318061Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=741 row_words=507 horizon=2612
2026-09-07T14:27:12.642198Z  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=5
2026-09-07T14:27:12.690134Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=74200 maximum_identical_destinations=1
2026-09-07T14:27:12.690179Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=18482 selected_horizon=18482 endpoint_lower_bound=13680 lower_bound_gap=4802 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:12.757542Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=716 row_words=406 horizon=18482
2026-09-07T14:27:41.749388Z  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=34179 maximum_identical_destinations=1
2026-09-07T14:27:41.749456Z  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=14608 selected_horizon=14608 endpoint_lower_bound=8832 lower_bound_gap=5776 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:27:41.829670Z  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=139 row_words=613 horizon=14608
2026-09-07T14:27:41.888354Z  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=32070 success=true
2026-09-07T14:27:42.947418Z  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=4
2026-09-07T14:27:42.998938Z  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
2026-09-07T14:27:43.002101Z  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=5704 maximum_identical_destinations=1
2026-09-07T14:27:43.002128Z  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=3492 selected_horizon=3492 endpoint_lower_bound=3360 lower_bound_gap=132 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:43.005945Z  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=522 row_words=38 horizon=3492
2026-09-07T14:27:43.596328Z  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=2
2026-09-07T14:27:43.609642Z  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=24761 maximum_identical_destinations=1
2026-09-07T14:27:43.609690Z  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=3332 selected_horizon=3332 endpoint_lower_bound=1088 lower_bound_gap=2244 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:43.625462Z  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=258 row_words=105 horizon=3332
2026-09-07T14:27:45.938272Z  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=5
2026-09-07T14:27:45.986496Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=5 transfers=74200 maximum_identical_destinations=1
2026-09-07T14:27:45.986548Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=5 initial_horizon=18482 selected_horizon=18482 endpoint_lower_bound=13680 lower_bound_gap=4802 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:46.056889Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=5 tile=716 row_words=406 horizon=18482
2026-09-07T14:27:55.652844Z  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=3
2026-09-07T14:27:55.744171Z  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=34179 maximum_identical_destinations=1
2026-09-07T14:27:55.744237Z  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=14608 selected_horizon=14608 endpoint_lower_bound=8832 lower_bound_gap=5776 selected_kind="reused" neighborhood_improvements=0
2026-09-07T14:27:55.817980Z  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=139 row_words=613 horizon=14608
2026-09-07T14:27:57.050630Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=0 transfers=26496 maximum_identical_destinations=1
2026-09-07T14:27:57.050701Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=0 initial_horizon=1323 selected_horizon=1323 endpoint_lower_bound=1152 lower_bound_gap=171 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T14:27:57.094995Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=0 tile=741 row_words=576 horizon=1323
2026-09-07T14:27:57.159630Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: evaluated exchange placement finalist offset=24576 baseline_score=42800750928 score=39870505296 baseline_cycles=46114 candidate_cycles=44825 row_bytes=6092 row_capacity=16320 accepted=true
2026-09-07T14:27:57.236607Z  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=15348 success=true
2026-09-07T14:27:57.251421Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}: costed final placed program final_cycles=344028 final_exchange=48425
2026-09-07T14:27:57.739070Z  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=30 success=true
2026-09-07T14:27:57.784296Z  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=45 success=true
2026-09-07T14:27:57.910590Z  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=94 success=true
2026-09-07T14:27:58.067071Z  INFO writing application package tiles=1472
2026-09-07T14:27:58.168506Z  INFO application package written
2026-09-07T14:27:58.170042Z  INFO reading application package
2026-09-07T14:27:58.364044Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-07T14:27:58.367410Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T14:27:58.367435Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-07T14:27:58.367442Z  INFO opening IPU device path="/dev/ipu0"
2026-09-07T14:27:58.367485Z  INFO IPU device attached path=/dev/ipu0
2026-09-07T14:27:58.367489Z  INFO initializing IPU device
2026-09-07T14:27:58.375592Z  INFO IPU device initialized
2026-09-07T14:27:58.375661Z  INFO replaying device configuration register_writes=2003
2026-09-07T14:27:58.387829Z  INFO loading application tile_count=1472 final_mark=23
2026-09-07T14:27:58.710326Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-07T14:28:14.715592Z  INFO starting host exchange session startup_mark=23
2026-09-07T14:28:14.715681Z  INFO attaching host exchange pages pages=2
2026-09-07T14:28:14.716742Z  INFO host exchange session started
2026-09-07T14:28:14.717990Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=84
2026-09-07T14:28:14.801931Z  INFO invoking streaming host exchange call call="run" command=0 phases=13
profile=artifacts/fp8/mlp-b1-vector/profile.ipuprof tiles=1472 samples=42155
referenceMaximumAbsoluteError=0.025391 numericalTest=PASS
package=artifacts/fp8/mlp-b1-vector/model.ipuexe tiles=1472 hardwareTest=PASS