2026-09-13T11:41:48.334146Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true 2026-09-13T11:41:48.445761Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: loaded mid-plan search state path=artifacts/exchange-cost-20260913/gelu-profile-state.json attempts=63 2026-09-13T11:41:49.006243Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: priced elementwise fusion source=Some(OperationId(20)) kernel=Primitive(Compute { kernel: BiasGelu, operands: [OperandWindow([]), OperandWindow([])], product: None, output_aliases: [] }) separate_cycles=Some(13506) fused_cycles=Some(8550) 2026-09-13T11:41:49.006408Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(3)) consumer=Some(OperationId(4)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 183, replicas: 1, axes: [AxisTiling { axis: FromEnd(2), partitions: 183, padding_groups: 1, block_size: 1, padding_multiple: 1, shard_padding_multiple: 1, padding: Reject, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 183, replicas: 1, axes: [AxisTiling { axis: FromEnd(2), partitions: 183, padding_groups: 1, block_size: 1, padding_multiple: 1, shard_padding_multiple: 1, padding: Reject, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.006722Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(17)) consumer=Some(OperationId(18)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 27, axes: [AxisTiling { axis: FromEnd(1), partitions: 6, padding_groups: 1, block_size: 192, padding_multiple: 192, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 27, axes: [AxisTiling { axis: FromEnd(1), partitions: 6, padding_groups: 1, block_size: 192, padding_multiple: 192, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.006896Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(20)) consumer=Some(OperationId(21)) kernel=BiasGelu input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 9, axes: [AxisTiling { axis: FromEnd(1), partitions: 27, padding_groups: 1, block_size: 160, padding_multiple: 160, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 6, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 9, axes: [AxisTiling { axis: FromEnd(1), partitions: 27, padding_groups: 1, block_size: 160, padding_multiple: 160, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 6, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.007220Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(3)) consumer=Some(OperationId(4)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 183, replicas: 1, axes: [AxisTiling { axis: FromEnd(2), partitions: 183, padding_groups: 1, block_size: 1, padding_multiple: 1, shard_padding_multiple: 1, padding: Reject, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 183, replicas: 1, axes: [AxisTiling { axis: FromEnd(2), partitions: 183, padding_groups: 1, block_size: 1, padding_multiple: 1, shard_padding_multiple: 1, padding: Reject, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.007705Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(17)) consumer=Some(OperationId(18)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 27, axes: [AxisTiling { axis: FromEnd(1), partitions: 6, padding_groups: 1, block_size: 192, padding_multiple: 192, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 27, axes: [AxisTiling { axis: FromEnd(1), partitions: 6, padding_groups: 1, block_size: 192, padding_multiple: 192, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.008120Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(20)) consumer=Some(OperationId(21)) kernel=BiasGelu input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 9, axes: [AxisTiling { axis: FromEnd(1), partitions: 27, padding_groups: 1, block_size: 160, padding_multiple: 160, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 6, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 9, axes: [AxisTiling { axis: FromEnd(1), partitions: 27, padding_groups: 1, block_size: 160, padding_multiple: 160, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 6, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.011321Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: priced elementwise fusion source=Some(OperationId(42)) kernel=Primitive(Compute { kernel: BiasGelu, operands: [OperandWindow([]), OperandWindow([])], product: None, output_aliases: [] }) separate_cycles=Some(1104) fused_cycles=Some(540) 2026-09-13T11:41:49.011480Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(25)) consumer=Some(OperationId(26)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 18, axes: [AxisTiling { axis: FromEnd(1), partitions: 9, padding_groups: 1, block_size: 128, padding_multiple: 128, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 18, axes: [AxisTiling { axis: FromEnd(1), partitions: 9, padding_groups: 1, block_size: 128, padding_multiple: 128, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.011659Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(42)) consumer=Some(OperationId(43)) kernel=BiasGelu input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1440, replicas: 72, axes: [AxisTiling { axis: FromEnd(1), partitions: 20, padding_groups: 1, block_size: 224, padding_multiple: 224, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 1, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1440, replicas: 72, axes: [AxisTiling { axis: FromEnd(1), partitions: 20, padding_groups: 1, block_size: 224, padding_multiple: 224, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 1, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.012170Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(25)) consumer=Some(OperationId(26)) kernel=LayerNorm input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1458, replicas: 18, axes: [AxisTiling { axis: FromEnd(1), partitions: 9, padding_groups: 1, block_size: 128, padding_multiple: 128, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1458, replicas: 18, axes: [AxisTiling { axis: FromEnd(1), partitions: 9, padding_groups: 1, block_size: 128, padding_multiple: 128, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 9, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.012611Z DEBUG ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: considering direct FP8 output producer=Some(OperationId(42)) consumer=Some(OperationId(43)) kernel=BiasGelu input_layout=Layout { order: RowMajor, tiling: TensorTiling { tile_count: 1440, replicas: 72, axes: [AxisTiling { axis: FromEnd(1), partitions: 20, padding_groups: 1, block_size: 224, padding_multiple: 224, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 1, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } output_layout=Layout { order: Amp(Left), tiling: TensorTiling { tile_count: 1440, replicas: 72, axes: [AxisTiling { axis: FromEnd(1), partitions: 20, padding_groups: 1, block_size: 224, padding_multiple: 224, shard_padding_multiple: 1, padding: Zero, tile_stride: None }, AxisTiling { axis: FromEnd(2), partitions: 1, padding_groups: 1, block_size: 2, padding_multiple: 2, shard_padding_multiple: 1, padding: Zero, tile_stride: None }] }, memory_class: Ipu21Standard } 2026-09-13T11:41:49.163495Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: wrote planner memory profile path=artifacts/producer-fp8-20260913/source-full/memory/baseline-549037-0000.json scope="baseline" peak_step=68 effective_peak_bytes=462584 2026-09-13T11:41:58.903619Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=8486 expansion_and_footprint_ms=9739 estimated_row_bytes=52112 heuristic_row_bytes=140556 geometry_fragments_per_tile=5508 fragment_limit=16384 2026-09-13T11:41:58.984783Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=3024 2026-09-13T11:41:59.560914Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=43 transfers=1152 maximum_identical_destinations=1 2026-09-13T11:41:59.560958Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=43 initial_horizon=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.562462Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=43 tile=79 row_words=46 horizon=5743 2026-09-13T11:41:59.567694Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=11 transfers=2913 maximum_identical_destinations=1 2026-09-13T11:41:59.567728Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=11 initial_horizon=3193 selected_horizon=3193 endpoint_lower_bound=1440 lower_bound_gap=1753 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.572441Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=11 tile=248 row_words=21 horizon=3193 2026-09-13T11:41:59.592649Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=39 transfers=1745 maximum_identical_destinations=1 2026-09-13T11:41:59.592681Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=39 initial_horizon=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.593152Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=46 candidates=18 ordinary_horizon=688 paired_horizon=1473 use_paired=false 2026-09-13T11:41:59.594147Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=1 transfers=1368 maximum_identical_destinations=1 2026-09-13T11:41:59.594180Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=1 initial_horizon=703 selected_horizon=703 endpoint_lower_bound=512 lower_bound_gap=191 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.596669Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=39 tile=6 row_words=44 horizon=2165 2026-09-13T11:41:59.597671Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=36 transfers=1294 maximum_identical_destinations=1 2026-09-13T11:41:59.597711Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=36 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.598563Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=1 tile=1109 row_words=14 horizon=703 2026-09-13T11:41:59.602823Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=36 tile=866 row_words=10 horizon=471 2026-09-13T11:41:59.608688Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=56 transfers=2151 maximum_identical_destinations=1 2026-09-13T11:41:59.608707Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=56 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.609425Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=47 transfers=1294 maximum_identical_destinations=1 2026-09-13T11:41:59.609450Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=47 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.611858Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=56 tile=1109 row_words=40 horizon=172 2026-09-13T11:41:59.612731Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=47 tile=866 row_words=10 horizon=471 2026-09-13T11:41:59.614372Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=59 transfers=1368 maximum_identical_destinations=1 2026-09-13T11:41:59.614406Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=59 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.616641Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=59 tile=47 row_words=25 horizon=406 2026-09-13T11:41:59.623653Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=48 transfers=1224 maximum_identical_destinations=1 2026-09-13T11:41:59.623671Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=48 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.625502Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=48 tile=47 row_words=23 horizon=374 2026-09-13T11:41:59.627754Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=58 transfers=1725 maximum_identical_destinations=1 2026-09-13T11:41:59.627780Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=58 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.631633Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=58 tile=1357 row_words=14 horizon=1112 2026-09-13T11:41:59.631670Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=54 transfers=9654 maximum_identical_destinations=1 2026-09-13T11:41:59.631698Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=54 initial_horizon=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.631856Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=37 transfers=1224 maximum_identical_destinations=1 2026-09-13T11:41:59.631878Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=37 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.634632Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=37 tile=47 row_words=23 horizon=374 2026-09-13T11:41:59.641285Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=52 candidates=4 ordinary_horizon=69 paired_horizon=128 use_paired=false 2026-09-13T11:41:59.641428Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=54 tile=943 row_words=46 horizon=1690 2026-09-13T11:41:59.641825Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=55 transfers=1288 maximum_identical_destinations=1 2026-09-13T11:41:59.641854Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=55 initial_horizon=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.644054Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=55 tile=89 row_words=15 horizon=326 2026-09-13T11:41:59.650038Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=35 candidates=72 ordinary_horizon=162 paired_horizon=268 use_paired=false 2026-09-13T11:41:59.660783Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=21 transfers=1457 maximum_identical_destinations=1 2026-09-13T11:41:59.660815Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=21 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.663344Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=21 tile=22 row_words=23 horizon=2909 2026-09-13T11:41:59.664992Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=30 transfers=1457 maximum_identical_destinations=1 2026-09-13T11:41:59.665025Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=30 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.666800Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=4 transfers=3650 maximum_identical_destinations=1 2026-09-13T11:41:59.666822Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=4 initial_horizon=1927 selected_horizon=1927 endpoint_lower_bound=1152 lower_bound_gap=775 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.667789Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=30 tile=13 row_words=21 horizon=2978 2026-09-13T11:41:59.670762Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=4 tile=21 row_words=25 horizon=1927 2026-09-13T11:41:59.695534Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=22 transfers=1475 maximum_identical_destinations=1 2026-09-13T11:41:59.695558Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=22 initial_horizon=2545 selected_horizon=2545 endpoint_lower_bound=1728 lower_bound_gap=817 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.698372Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=22 tile=171 row_words=32 horizon=2545 2026-09-13T11:41:59.735145Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=27 transfers=3096 maximum_identical_destinations=1 2026-09-13T11:41:59.735180Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=27 initial_horizon=9150 selected_horizon=9150 endpoint_lower_bound=5120 lower_bound_gap=4030 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.747188Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=27 tile=452 row_words=54 horizon=9150 2026-09-13T11:41:59.782816Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1 2026-09-13T11:41:59.782849Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=17 initial_horizon=2617 selected_horizon=2617 endpoint_lower_bound=2304 lower_bound_gap=313 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.790510Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=17 tile=21 row_words=159 horizon=2617 2026-09-13T11:41:59.836272Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=41 transfers=12492 maximum_identical_destinations=1 2026-09-13T11:41:59.836310Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=41 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.845889Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=41 tile=64 row_words=133 horizon=7129 2026-09-13T11:41:59.853487Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=24 transfers=8694 maximum_identical_destinations=1 2026-09-13T11:41:59.853516Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=24 initial_horizon=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.864252Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=24 tile=1428 row_words=47 horizon=14502 2026-09-13T11:41:59.892511Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=2 transfers=16520 maximum_identical_destinations=1 2026-09-13T11:41:59.892538Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=2 initial_horizon=3661 selected_horizon=3661 endpoint_lower_bound=3040 lower_bound_gap=621 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.896874Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=7 transfers=26208 maximum_identical_destinations=1 2026-09-13T11:41:59.896909Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=7 initial_horizon=1445 selected_horizon=1445 endpoint_lower_bound=1152 lower_bound_gap=293 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:41:59.904258Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=2 tile=1061 row_words=90 horizon=3661 2026-09-13T11:41:59.910519Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=7 tile=28 row_words=359 horizon=1445 2026-09-13T11:41:59.913146Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=53 candidates=36 ordinary_horizon=232 paired_horizon=1392 use_paired=false 2026-09-13T11:42:00.086375Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=19 transfers=20656 maximum_identical_destinations=1 2026-09-13T11:42:00.086425Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=19 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.108319Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=19 tile=535 row_words=106 horizon=4485 2026-09-13T11:42:00.124791Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=9 transfers=50544 maximum_identical_destinations=1 2026-09-13T11:42:00.124823Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=9 initial_horizon=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.159359Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=9 tile=473 row_words=171 horizon=9085 2026-09-13T11:42:00.326315Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=29 transfers=51925 maximum_identical_destinations=1 2026-09-13T11:42:00.326356Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=29 initial_horizon=822 selected_horizon=822 endpoint_lower_bound=576 lower_bound_gap=246 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.351889Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=29 tile=1095 row_words=136 horizon=822 2026-09-13T11:42:00.421154Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=33 transfers=45090 maximum_identical_destinations=1 2026-09-13T11:42:00.421196Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=33 initial_horizon=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.459872Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=33 tile=1090 row_words=186 horizon=7433 2026-09-13T11:42:00.488734Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=16 transfers=50960 maximum_identical_destinations=1 2026-09-13T11:42:00.488826Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=16 initial_horizon=2673 selected_horizon=2673 endpoint_lower_bound=1960 lower_bound_gap=713 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.529581Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=16 tile=455 row_words=131 horizon=2673 2026-09-13T11:42:00.828883Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=15 transfers=71104 maximum_identical_destinations=1 2026-09-13T11:42:00.828925Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=15 initial_horizon=11776 selected_horizon=11776 endpoint_lower_bound=8768 lower_bound_gap=3008 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:00.861496Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=15 tile=79 row_words=272 horizon=11776 2026-09-13T11:42:00.964162Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=3 transfers=51948 maximum_identical_destinations=1 2026-09-13T11:42:00.964222Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=3 initial_horizon=846 selected_horizon=846 endpoint_lower_bound=576 lower_bound_gap=270 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:01.010583Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=3 tile=356 row_words=177 horizon=846 2026-09-13T11:42:01.078952Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=20 transfers=51948 maximum_identical_destinations=1 2026-09-13T11:42:01.078997Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=20 initial_horizon=850 selected_horizon=850 endpoint_lower_bound=576 lower_bound_gap=274 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:01.125587Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=20 tile=356 row_words=177 horizon=850 2026-09-13T11:42:01.718496Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=13 transfers=33676 maximum_identical_destinations=1 2026-09-13T11:42:01.718541Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=13 initial_horizon=12637 selected_horizon=12637 endpoint_lower_bound=11940 lower_bound_gap=697 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:01.803267Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=13 tile=79 row_words=630 horizon=12637 2026-09-13T11:42:02.030167Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=10 transfers=155252 maximum_identical_destinations=1 2026-09-13T11:42:02.030238Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=10 initial_horizon=2258 selected_horizon=2258 endpoint_lower_bound=1728 lower_bound_gap=530 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:02.172951Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=10 tile=231 row_words=310 horizon=2258 2026-09-13T11:42:02.176927Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=18 candidates=6660 ordinary_horizon=5369 paired_horizon=11106 use_paired=false 2026-09-13T11:42:02.250435Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=18 transfers=8388 maximum_identical_destinations=1 2026-09-13T11:42:02.250464Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=18 initial_horizon=5369 selected_horizon=5369 endpoint_lower_bound=4656 lower_bound_gap=713 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:02.284512Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=18 tile=36 row_words=354 horizon=5369 2026-09-13T11:42:03.279146Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=34 transfers=103635 maximum_identical_destinations=1 2026-09-13T11:42:03.279196Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=34 initial_horizon=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:03.374282Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=34 tile=235 row_words=253 horizon=1463 2026-09-13T11:42:03.821829Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=28 transfers=112284 maximum_identical_destinations=1 2026-09-13T11:42:03.821886Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=28 initial_horizon=14301 selected_horizon=14301 endpoint_lower_bound=9072 lower_bound_gap=5229 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:03.889496Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=28 tile=707 row_words=445 horizon=14301 2026-09-13T11:42:04.214851Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=26 transfers=20412 maximum_identical_destinations=1 2026-09-13T11:42:04.214887Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=26 initial_horizon=10165 selected_horizon=10165 endpoint_lower_bound=9760 lower_bound_gap=405 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:04.241770Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=26 tile=120 row_words=595 horizon=10165 2026-09-13T11:42:05.041131Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=8 candidates=6588 ordinary_horizon=17260 paired_horizon=25623 use_paired=false 2026-09-13T11:42:05.176548Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=8 transfers=9180 maximum_identical_destinations=1 2026-09-13T11:42:05.176583Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=8 initial_horizon=17260 selected_horizon=17260 endpoint_lower_bound=9856 lower_bound_gap=7404 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:05.246241Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=8 tile=104 row_words=649 horizon=17260 2026-09-13T11:42:05.351265Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=57 candidates=1076 ordinary_horizon=525 paired_horizon=2897 use_paired=false 2026-09-13T11:42:05.377335Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=57 transfers=1076 maximum_identical_destinations=1 2026-09-13T11:42:05.377359Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=57 initial_horizon=525 selected_horizon=525 endpoint_lower_bound=112 lower_bound_gap=413 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:05.389593Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=57 tile=1075 row_words=94 horizon=525 2026-09-13T11:42:07.434352Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=23 transfers=35928 maximum_identical_destinations=1 2026-09-13T11:42:07.434408Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=23 initial_horizon=18299 selected_horizon=18299 endpoint_lower_bound=11616 lower_bound_gap=6683 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:07.612664Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=23 tile=37 row_words=1320 horizon=18299 2026-09-13T11:42:08.741675Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=25 transfers=195689 maximum_identical_destinations=1 2026-09-13T11:42:08.741720Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=25 initial_horizon=2731 selected_horizon=2731 endpoint_lower_bound=2152 lower_bound_gap=579 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:08.971422Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=25 tile=553 row_words=658 horizon=2731 2026-09-13T11:42:09.016891Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=40 transfers=116530 maximum_identical_destinations=1 2026-09-13T11:42:09.016934Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=40 initial_horizon=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:09.124355Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=40 tile=101 row_words=1130 horizon=5303 2026-09-13T11:42:10.359968Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1 2026-09-13T11:42:10.360015Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=14 initial_horizon=7135 selected_horizon=7135 endpoint_lower_bound=3240 lower_bound_gap=3895 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:10.399678Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=14 tile=964 row_words=285 horizon=7135 2026-09-13T11:42:10.645602Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=0 candidates=1692 ordinary_horizon=6634 paired_horizon=5480 use_paired=false 2026-09-13T11:42:10.667907Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=0 transfers=2421 maximum_identical_destinations=1 2026-09-13T11:42:10.667929Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=0 initial_horizon=6634 selected_horizon=6634 endpoint_lower_bound=2944 lower_bound_gap=3690 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:10.678900Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=0 tile=359 row_words=389 horizon=6634 2026-09-13T11:42:12.624172Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=32 candidates=26244 ordinary_horizon=10429 paired_horizon=29600 use_paired=false 2026-09-13T11:42:12.849593Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=32 transfers=27540 maximum_identical_destinations=1 2026-09-13T11:42:12.849637Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=32 initial_horizon=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:12.976264Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=32 tile=465 row_words=878 horizon=10429 2026-09-13T11:42:18.647294Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=12 transfers=174718 maximum_identical_destinations=1 2026-09-13T11:42:18.647341Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=12 initial_horizon=4233 selected_horizon=4233 endpoint_lower_bound=1440 lower_bound_gap=2793 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:18.865528Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=12 tile=546 row_words=789 horizon=4233 2026-09-13T11:42:18.973287Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=59 success=true 2026-09-13T11:42:18.975707Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=device/elementwise_f16.cpp name="layer_norm_f8_codelet" target=ipu21 2026-09-13T11:42:19.378056Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/29542d4e092b073123de725f67fe92081a6f1c73c3e798a7497f0bd12dff08aa/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/29542d4e092b073123de725f67fe92081a6f1c73c3e798a7497f0bd12dff08aa/kernel.json 2026-09-13T11:42:19.380658Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=407 success=true 2026-09-13T11:42:19.386893Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true 2026-09-13T11:42:20.125778Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=39100 maximum_uncompressed_repeat_patch_bytes=6156 maximum_elided_arithmetic_patch_bytes=6156 2026-09-13T11:42:22.864794Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=87 success=true 2026-09-13T11:42:22.864881Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=380400 host_code_base=380400 host_code_bytes=9076 generated_code_bytes=11580 exchange_table_bytes=39100 executable_ranges=[(379420, 379424), (389544, 524288)] 2026-09-13T11:42:22.864907Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=380400 profile_bytes=816 exchange_table_bytes=39100 host_code_bytes=9076 host_data_bytes=6264 generated_code_bytes=11580 code_address=389544 available_ranges=[(327680, 360448), (368472, 376832), (458752, 524288), (525104, 949168)] 2026-09-13T11:42:23.285531Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=420 success=true 2026-09-13T11:42:23.320359Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5 2026-09-13T11:42:23.320981Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=50 2026-09-13T11:42:23.322688Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51 2026-09-13T11:42:23.322737Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38 2026-09-13T11:42:23.323504Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52 2026-09-13T11:42:23.323585Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46 2026-09-13T11:42:23.327378Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21 2026-09-13T11:42:23.327946Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=21 transfers=1457 maximum_identical_destinations=1 2026-09-13T11:42:23.327960Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.331079Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=21 tile=22 row_words=23 horizon=2909 2026-09-13T11:42:23.338395Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47 2026-09-13T11:42:23.338923Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=47 transfers=1294 maximum_identical_destinations=1 2026-09-13T11:42:23.338934Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=47 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.341808Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11 2026-09-13T11:42:23.342922Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=47 tile=866 row_words=10 horizon=471 2026-09-13T11:42:23.343074Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=2913 maximum_identical_destinations=1 2026-09-13T11:42:23.343091Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=3193 selected_horizon=3193 endpoint_lower_bound=1440 lower_bound_gap=1753 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.345754Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39 2026-09-13T11:42:23.346514Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=1745 maximum_identical_destinations=1 2026-09-13T11:42:23.346529Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=2165 selected_horizon=2165 endpoint_lower_bound=900 lower_bound_gap=1265 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.347874Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=248 row_words=21 horizon=3193 2026-09-13T11:42:23.351096Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53 2026-09-13T11:42:23.351314Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=6 row_words=44 horizon=2165 2026-09-13T11:42:23.352628Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48 2026-09-13T11:42:23.353083Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=48 transfers=1224 maximum_identical_destinations=1 2026-09-13T11:42:23.353095Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.355366Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=48 tile=47 row_words=23 horizon=374 2026-09-13T11:42:23.356894Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60 2026-09-13T11:42:23.357124Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58 2026-09-13T11:42:23.357827Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=58 transfers=1725 maximum_identical_destinations=1 2026-09-13T11:42:23.357847Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=58 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.360293Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49 2026-09-13T11:42:23.362656Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=58 tile=1357 row_words=14 horizon=1112 2026-09-13T11:42:23.363164Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=61 2026-09-13T11:42:23.368563Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6 2026-09-13T11:42:23.373353Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59 2026-09-13T11:42:23.373852Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=59 transfers=1368 maximum_identical_destinations=1 2026-09-13T11:42:23.373863Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.376565Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=59 tile=47 row_words=25 horizon=406 2026-09-13T11:42:23.385366Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4 2026-09-13T11:42:23.386186Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54 2026-09-13T11:42:23.386783Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=3650 maximum_identical_destinations=1 2026-09-13T11:42:23.386798Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=1927 selected_horizon=1927 endpoint_lower_bound=1152 lower_bound_gap=775 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.388503Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22 2026-09-13T11:42:23.390586Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=54 transfers=9654 maximum_identical_destinations=1 2026-09-13T11:42:23.390603Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=54 initial_horizon=1690 selected_horizon=1690 endpoint_lower_bound=1280 lower_bound_gap=410 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.391252Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=22 transfers=1475 maximum_identical_destinations=1 2026-09-13T11:42:23.391268Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=2545 selected_horizon=2545 endpoint_lower_bound=1728 lower_bound_gap=817 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.392564Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=21 row_words=25 horizon=1927 2026-09-13T11:42:23.396037Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=22 tile=171 row_words=32 horizon=2545 2026-09-13T11:42:23.398049Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31 2026-09-13T11:42:23.401319Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=54 tile=943 row_words=46 horizon=1690 2026-09-13T11:42:23.417542Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55 2026-09-13T11:42:23.418184Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=55 transfers=1288 maximum_identical_destinations=1 2026-09-13T11:42:23.418248Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=55 initial_horizon=326 selected_horizon=326 endpoint_lower_bound=224 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.422076Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=55 tile=89 row_words=15 horizon=326 2026-09-13T11:42:23.433484Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56 2026-09-13T11:42:23.434183Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=56 transfers=2151 maximum_identical_destinations=1 2026-09-13T11:42:23.434212Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=56 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.437743Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=56 tile=1109 row_words=40 horizon=172 2026-09-13T11:42:23.487389Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17 2026-09-13T11:42:23.491561Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30 2026-09-13T11:42:23.492031Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=30 transfers=1457 maximum_identical_destinations=1 2026-09-13T11:42:23.492042Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=30 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.494109Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1 2026-09-13T11:42:23.494135Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=2617 selected_horizon=2617 endpoint_lower_bound=2304 lower_bound_gap=313 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.494698Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=30 tile=13 row_words=21 horizon=2978 2026-09-13T11:42:23.495602Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37 2026-09-13T11:42:23.496057Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=37 transfers=1224 maximum_identical_destinations=1 2026-09-13T11:42:23.496069Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.497131Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36 2026-09-13T11:42:23.497715Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=36 transfers=1294 maximum_identical_destinations=1 2026-09-13T11:42:23.497731Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=36 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.498413Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=37 tile=47 row_words=23 horizon=374 2026-09-13T11:42:23.501349Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=36 tile=866 row_words=10 horizon=471 2026-09-13T11:42:23.504160Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=17 tile=21 row_words=159 horizon=2617 2026-09-13T11:42:23.509726Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35 2026-09-13T11:42:23.512481Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=27 transfers=3096 maximum_identical_destinations=1 2026-09-13T11:42:23.512517Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=27 initial_horizon=9161 selected_horizon=9161 endpoint_lower_bound=5120 lower_bound_gap=4041 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:23.514744Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45 2026-09-13T11:42:23.516394Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42 2026-09-13T11:42:23.517893Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44 2026-09-13T11:42:23.524606Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=27 tile=942 row_words=54 horizon=9161 2026-09-13T11:42:23.528649Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43 2026-09-13T11:42:23.529129Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=43 transfers=1152 maximum_identical_destinations=1 2026-09-13T11:42:23.529140Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=43 initial_horizon=5743 selected_horizon=5743 endpoint_lower_bound=5632 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.530612Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=43 tile=79 row_words=46 horizon=5743 2026-09-13T11:42:23.560814Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7 2026-09-13T11:42:23.568712Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=26208 maximum_identical_destinations=1 2026-09-13T11:42:23.568728Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=1445 selected_horizon=1445 endpoint_lower_bound=1152 lower_bound_gap=293 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.577860Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=28 row_words=359 horizon=1445 2026-09-13T11:42:23.590792Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19 2026-09-13T11:42:23.598578Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=19 transfers=20656 maximum_identical_destinations=1 2026-09-13T11:42:23.598595Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.614941Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=19 tile=535 row_words=106 horizon=4485 2026-09-13T11:42:23.697716Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9 2026-09-13T11:42:23.706989Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41 2026-09-13T11:42:23.713747Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=41 transfers=12492 maximum_identical_destinations=1 2026-09-13T11:42:23.713771Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=7129 selected_horizon=7129 endpoint_lower_bound=6756 lower_bound_gap=373 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.718847Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=50544 maximum_identical_destinations=1 2026-09-13T11:42:23.718869Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:23.724065Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=41 tile=64 row_words=133 horizon=7129 2026-09-13T11:42:23.754295Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=473 row_words=171 horizon=9085 2026-09-13T11:42:23.865288Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=24 transfers=8694 maximum_identical_destinations=1 2026-09-13T11:42:23.865336Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=14502 selected_horizon=14502 endpoint_lower_bound=7872 lower_bound_gap=6630 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:23.876525Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=24 tile=1428 row_words=47 horizon=14502 2026-09-13T11:42:24.143321Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33 2026-09-13T11:42:24.170368Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=33 transfers=45090 maximum_identical_destinations=1 2026-09-13T11:42:24.170398Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=33 initial_horizon=7433 selected_horizon=7433 endpoint_lower_bound=6048 lower_bound_gap=1385 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.190743Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0 2026-09-13T11:42:24.196423Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29 2026-09-13T11:42:24.208698Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=2421 maximum_identical_destinations=1 2026-09-13T11:42:24.208720Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=6634 selected_horizon=6634 endpoint_lower_bound=2944 lower_bound_gap=3690 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.212997Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=33 tile=1090 row_words=186 horizon=7433 2026-09-13T11:42:24.218523Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=29 transfers=51925 maximum_identical_destinations=1 2026-09-13T11:42:24.218549Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=29 initial_horizon=822 selected_horizon=822 endpoint_lower_bound=576 lower_bound_gap=246 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.224646Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=359 row_words=389 horizon=6634 2026-09-13T11:42:24.253160Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=29 tile=1095 row_words=136 horizon=822 2026-09-13T11:42:24.259563Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57 2026-09-13T11:42:24.272179Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=57 transfers=1076 maximum_identical_destinations=1 2026-09-13T11:42:24.272237Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=57 initial_horizon=525 selected_horizon=525 endpoint_lower_bound=112 lower_bound_gap=413 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.285580Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=57 tile=1075 row_words=94 horizon=525 2026-09-13T11:42:24.895533Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18 2026-09-13T11:42:24.933785Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20 2026-09-13T11:42:24.942926Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=18 transfers=8388 maximum_identical_destinations=1 2026-09-13T11:42:24.942960Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=5369 selected_horizon=5369 endpoint_lower_bound=4656 lower_bound_gap=713 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.968336Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=20 transfers=51948 maximum_identical_destinations=1 2026-09-13T11:42:24.968388Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=850 selected_horizon=850 endpoint_lower_bound=576 lower_bound_gap=274 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:24.990867Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=18 tile=36 row_words=354 horizon=5369 2026-09-13T11:42:25.023661Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=20 tile=356 row_words=177 horizon=850 2026-09-13T11:42:25.475659Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=34 2026-09-13T11:42:25.560529Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26 2026-09-13T11:42:25.562570Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=34 transfers=103635 maximum_identical_destinations=1 2026-09-13T11:42:25.562599Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=34 initial_horizon=1463 selected_horizon=1463 endpoint_lower_bound=1152 lower_bound_gap=311 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:25.624805Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=26 transfers=20412 maximum_identical_destinations=1 2026-09-13T11:42:25.624835Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=10165 selected_horizon=10165 endpoint_lower_bound=9760 lower_bound_gap=405 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:25.653906Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=34 tile=235 row_words=253 horizon=1463 2026-09-13T11:42:25.663858Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=26 tile=120 row_words=595 horizon=10165 2026-09-13T11:42:25.706744Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=16 2026-09-13T11:42:25.734364Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=16 transfers=50960 maximum_identical_destinations=1 2026-09-13T11:42:25.734392Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=16 initial_horizon=2673 selected_horizon=2673 endpoint_lower_bound=1960 lower_bound_gap=713 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:25.782418Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=16 tile=455 row_words=131 horizon=2673 2026-09-13T11:42:25.948798Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1 2026-09-13T11:42:25.948847Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=14 initial_horizon=7032 selected_horizon=7032 endpoint_lower_bound=3240 lower_bound_gap=3792 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:25.990058Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=14 tile=323 row_words=281 horizon=7032 2026-09-13T11:42:26.144649Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10 2026-09-13T11:42:26.214430Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=155252 maximum_identical_destinations=1 2026-09-13T11:42:26.214455Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=2258 selected_horizon=2258 endpoint_lower_bound=1728 lower_bound_gap=530 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:26.281354Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13 2026-09-13T11:42:26.294147Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=231 row_words=310 horizon=2258 2026-09-13T11:42:26.327688Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=1 2026-09-13T11:42:26.329528Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=1368 maximum_identical_destinations=1 2026-09-13T11:42:26.329546Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=703 selected_horizon=703 endpoint_lower_bound=512 lower_bound_gap=191 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:26.332873Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=1109 row_words=14 horizon=703 2026-09-13T11:42:26.360653Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=13 transfers=33676 maximum_identical_destinations=1 2026-09-13T11:42:26.360679Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=13 initial_horizon=12637 selected_horizon=12637 endpoint_lower_bound=11940 lower_bound_gap=697 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:26.432346Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=13 tile=79 row_words=630 horizon=12637 2026-09-13T11:42:26.486609Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40 2026-09-13T11:42:26.548516Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=40 transfers=116530 maximum_identical_destinations=1 2026-09-13T11:42:26.548542Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=5303 selected_horizon=5303 endpoint_lower_bound=2816 lower_bound_gap=2487 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:26.650552Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=40 tile=101 row_words=1130 horizon=5303 2026-09-13T11:42:26.653880Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=28 transfers=112284 maximum_identical_destinations=1 2026-09-13T11:42:26.653908Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=28 initial_horizon=14418 selected_horizon=14418 endpoint_lower_bound=9072 lower_bound_gap=5346 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:26.712310Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2 2026-09-13T11:42:26.735269Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=16520 maximum_identical_destinations=1 2026-09-13T11:42:26.735301Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=3661 selected_horizon=3661 endpoint_lower_bound=3040 lower_bound_gap=621 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:26.742902Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=28 tile=707 row_words=441 horizon=14418 2026-09-13T11:42:26.752811Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=1061 row_words=90 horizon=3661 2026-09-13T11:42:27.663353Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32 2026-09-13T11:42:27.751660Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=32 transfers=27540 maximum_identical_destinations=1 2026-09-13T11:42:27.751685Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=32 initial_horizon=10429 selected_horizon=10429 endpoint_lower_bound=6720 lower_bound_gap=3709 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:27.834094Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=32 tile=465 row_words=878 horizon=10429 2026-09-13T11:42:29.787910Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12 2026-09-13T11:42:29.893714Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=12 transfers=174718 maximum_identical_destinations=1 2026-09-13T11:42:29.893745Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=4233 selected_horizon=4233 endpoint_lower_bound=1440 lower_bound_gap=2793 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:30.062854Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25 2026-09-13T11:42:30.117436Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=12 tile=546 row_words=789 horizon=4233 2026-09-13T11:42:30.211518Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=25 transfers=195689 maximum_identical_destinations=1 2026-09-13T11:42:30.211558Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=25 initial_horizon=2731 selected_horizon=2731 endpoint_lower_bound=2152 lower_bound_gap=579 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:30.421865Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=25 tile=553 row_words=658 horizon=2731 2026-09-13T11:42:31.421126Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3 2026-09-13T11:42:31.450482Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=51948 maximum_identical_destinations=1 2026-09-13T11:42:31.450510Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=846 selected_horizon=846 endpoint_lower_bound=576 lower_bound_gap=270 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:31.495350Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=356 row_words=177 horizon=846 2026-09-13T11:42:31.969068Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=8 candidates=6588 ordinary_horizon=16996 paired_horizon=25275 use_paired=false 2026-09-13T11:42:32.069624Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=9180 maximum_identical_destinations=1 2026-09-13T11:42:32.069654Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=16996 selected_horizon=16996 endpoint_lower_bound=9856 lower_bound_gap=7140 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:32.117647Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=104 row_words=653 horizon=16996 2026-09-13T11:42:33.268034Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15 2026-09-13T11:42:33.304271Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=15 transfers=71104 maximum_identical_destinations=1 2026-09-13T11:42:33.304300Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=15 initial_horizon=11776 selected_horizon=11776 endpoint_lower_bound=8768 lower_bound_gap=3008 selected_kind="reused" neighborhood_improvements=0 2026-09-13T11:42:33.356774Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=15 tile=79 row_words=272 horizon=11776 2026-09-13T11:42:40.106646Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=23 transfers=35928 maximum_identical_destinations=1 2026-09-13T11:42:40.106690Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=18170 selected_horizon=18170 endpoint_lower_bound=11616 lower_bound_gap=6554 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-13T11:42:40.241556Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=23 tile=138 row_words=1307 horizon=18170 2026-09-13T11:42:40.283764Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=16998 success=true 2026-09-13T11:42:51.647305Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: package build phase finished phase="optimize_exchange_placement" elapsed_ms=11363 success=true 2026-09-13T11:42:51.662689Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=11355615 final_exchange=5028571 2026-09-13T11:42:53.036757Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="prepare_tile_code"}: package build phase finished phase="prepare_tile_code" elapsed_ms=121 success=true 2026-09-13T11:42:53.113350Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="emit_tile_code"}: package build phase finished phase="emit_tile_code" elapsed_ms=76 success=true 2026-09-13T11:42:53.449890Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="build_tile_images"}: package build phase finished phase="build_tile_images" elapsed_ms=292 success=true 2026-09-13T11:42:53.725487Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=11355615 resuming=true 2026-09-13T11:42:53.913085Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=65578 success=true 2026-09-13T11:42:55.428865Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}: wrote exact tile placement profile path=artifacts/producer-fp8-20260913/source-full/memory/placement-549037.html 2026-09-13T11:42:55.951113Z INFO writing application package tiles=1472 2026-09-13T11:42:56.296927Z INFO application package written 2026-09-13T11:42:56.311065Z INFO reading application package 2026-09-13T11:42:56.999874Z INFO application package read tiles=1472 compiler=0.1.0 2026-09-13T11:42:57.011542Z INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock 2026-09-13T11:42:57.011562Z INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock 2026-09-13T11:42:57.011566Z INFO opening IPU device path="/dev/ipu0" 2026-09-13T11:42:57.011591Z INFO IPU device attached path=/dev/ipu0 2026-09-13T11:42:57.011594Z INFO initializing IPU device 2026-09-13T11:42:57.019337Z INFO IPU device initialized 2026-09-13T11:42:57.019358Z INFO replaying device configuration register_writes=2003 2026-09-13T11:42:57.040291Z INFO loading application tile_count=1472 final_mark=23 2026-09-13T11:42:57.253844Z INFO application loaded and initial synchronization completed tile_count=1472 2026-09-13T11:42:59.805490Z INFO prepared reference inputs elapsed_ms=2550 2026-09-13T11:42:59.805860Z INFO configured host reference BLAS threads=4 referencePrecision=fp32 2026-09-13T11:43:21.359457Z INFO evaluated host reference elapsed_ms=21553 2026-09-13T11:43:21.361762Z INFO starting host exchange session startup_mark=23 2026-09-13T11:43:21.361816Z INFO attaching host exchange pages pages=2 2026-09-13T11:43:21.362494Z INFO host exchange session started 2026-09-13T11:43:21.363356Z INFO invoking host exchange call call="initialize" command=0 phases=342 2026-09-13T11:43:21.498482Z INFO invoking host exchange call call="run" command=0 phases=13 referenceMinimumCosineSimilarity=0.993916310 referenceInference=1 numericalTest=PASS 2026-09-13T11:43:21.508360Z INFO invoking host exchange call call="run" command=0 phases=13 referenceMinimumCosineSimilarity=0.993916310 referenceInference=2 numericalTest=PASS referenceMaximumAbsoluteError=0.484178 numericalTest=PASS package=artifacts/producer-fp8-20260913/source-full/model.ipuexe tiles=1472 hardwareTest=PASS