2026-09-15T04:28:24.939490Z 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 2026-09-15T04:28:25.183225Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrating legacy cast choices to scoped policies 2026-09-15T04:28:25.183264Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrated global tile mapping into scoped recipe ownership 2026-09-15T04:28:25.183269Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrating global packing rows to named copy choices 2026-09-15T04:28:25.183273Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrating global grouping and result bases to named groups and actual homes 2026-09-15T04:28:25.310490Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrated checkpoint context without redundant bookkeeping 2026-09-15T04:28:25.310534Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: migrating legacy site choices; cleared obsolete search visits 2026-09-15T04:28:25.310538Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: loaded mid-plan search state path=artifacts/full-qk-20260913/real-bs1/state.json attempts=0 2026-09-15T04:28:33.478013Z 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=4986 2026-09-15T04:28:35.546544Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=7455 expansion_and_footprint_ms=9521 estimated_row_bytes=82768 heuristic_row_bytes=201704 geometry_fragments_per_tile=8583 fragment_limit=16384 2026-09-15T04:28:36.262740Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_provisional_storage"}: package build phase finished phase="place_provisional_storage" elapsed_ms=661 success=true 2026-09-15T04:28:36.354382Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=34 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:28:36.354426Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=34 initial_horizon=2828 selected_horizon=2828 endpoint_lower_bound=2304 lower_bound_gap=524 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.358345Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=34 tile=114 row_words=24 horizon=2828 2026-09-15T04:28:36.366731Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=4 transfers=2193 maximum_identical_destinations=1 2026-09-15T04:28:36.366768Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=3113 selected_horizon=3113 endpoint_lower_bound=2304 lower_bound_gap=809 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.371374Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=4 tile=54 row_words=25 horizon=3113 2026-09-15T04:28:36.375795Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=51 candidates=18 ordinary_horizon=688 paired_horizon=1473 use_paired=false 2026-09-15T04:28:36.384048Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=35 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:28:36.384072Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=35 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.387672Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=35 tile=13 row_words=21 horizon=2978 2026-09-15T04:28:36.399434Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=52 transfers=1294 maximum_identical_destinations=1 2026-09-15T04:28:36.399464Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.404244Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=52 tile=866 row_words=10 horizon=471 2026-09-15T04:28:36.414011Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=17 transfers=11656 maximum_identical_destinations=1 2026-09-15T04:28:36.414051Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=2961 selected_horizon=2961 endpoint_lower_bound=2304 lower_bound_gap=657 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.417988Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=53 transfers=1224 maximum_identical_destinations=1 2026-09-15T04:28:36.418012Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=53 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.419632Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=17 tile=163 row_words=116 horizon=2961 2026-09-15T04:28:36.420924Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=53 tile=47 row_words=23 horizon=374 2026-09-15T04:28:36.454758Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=57 candidates=32 ordinary_horizon=210 paired_horizon=1250 use_paired=false 2026-09-15T04:28:36.488220Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=58 candidates=56 ordinary_horizon=124 paired_horizon=317 use_paired=false 2026-09-15T04:28:36.512765Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=18 transfers=11648 maximum_identical_destinations=1 2026-09-15T04:28:36.512796Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=3015 selected_horizon=3015 endpoint_lower_bound=2304 lower_bound_gap=711 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.516280Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=59 transfers=1438 maximum_identical_destinations=1 2026-09-15T04:28:36.516304Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=59 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.518575Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=18 tile=85 row_words=90 horizon=3015 2026-09-15T04:28:36.522907Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=59 tile=875 row_words=10 horizon=1112 2026-09-15T04:28:36.540729Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=60 transfers=1400 maximum_identical_destinations=1 2026-09-15T04:28:36.540751Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=60 initial_horizon=4006 selected_horizon=4006 endpoint_lower_bound=3920 lower_bound_gap=86 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.544173Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=60 tile=39 row_words=39 horizon=4006 2026-09-15T04:28:36.573974Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=61 transfers=2151 maximum_identical_destinations=1 2026-09-15T04:28:36.574003Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=61 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.577612Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=61 tile=1104 row_words=41 horizon=172 2026-09-15T04:28:36.589605Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=62 transfers=1075 maximum_identical_destinations=1 2026-09-15T04:28:36.589626Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=216 selected_horizon=216 endpoint_lower_bound=4 lower_bound_gap=212 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.593802Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=62 tile=46 row_words=9 horizon=216 2026-09-15T04:28:36.871137Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=21 transfers=20656 maximum_identical_destinations=1 2026-09-15T04:28:36.871188Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=21 initial_horizon=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:36.893405Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=21 tile=535 row_words=106 horizon=4485 2026-09-15T04:28:37.954606Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=63 candidates=972 ordinary_horizon=548 paired_horizon=2983 use_paired=false 2026-09-15T04:28:37.983357Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=63 transfers=1024 maximum_identical_destinations=1 2026-09-15T04:28:37.983388Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=63 initial_horizon=548 selected_horizon=548 endpoint_lower_bound=112 lower_bound_gap=436 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:37.998439Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=63 tile=1017 row_words=100 horizon=548 2026-09-15T04:28:38.022973Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=64 transfers=1725 maximum_identical_destinations=1 2026-09-15T04:28:38.023000Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=64 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.029615Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=64 tile=1357 row_words=14 horizon=1112 2026-09-15T04:28:38.046101Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=65 transfers=1368 maximum_identical_destinations=1 2026-09-15T04:28:38.046124Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=65 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.049756Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=65 tile=47 row_words=25 horizon=406 2026-09-15T04:28:38.835953Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=22 transfers=51948 maximum_identical_destinations=1 2026-09-15T04:28:38.836012Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=22 initial_horizon=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.885713Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=22 tile=68 row_words=172 horizon=859 2026-09-15T04:28:38.922794Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=23 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:28:38.922827Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=23 initial_horizon=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.927751Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=23 tile=22 row_words=23 horizon=2909 2026-09-15T04:28:38.945980Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=24 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:28:38.946005Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=24 initial_horizon=2969 selected_horizon=2969 endpoint_lower_bound=2304 lower_bound_gap=665 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.950464Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=24 tile=13 row_words=19 horizon=2969 2026-09-15T04:28:38.965449Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=42 transfers=1224 maximum_identical_destinations=1 2026-09-15T04:28:38.965471Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:38.968899Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=42 tile=47 row_words=23 horizon=374 2026-09-15T04:28:38.997412Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=44 transfers=1741 maximum_identical_destinations=1 2026-09-15T04:28:38.997449Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=6408 selected_horizon=6408 endpoint_lower_bound=4644 lower_bound_gap=1764 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:39.000415Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=44 tile=13 row_words=51 horizon=6408 2026-09-15T04:28:39.439503Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=2 transfers=52102 maximum_identical_destinations=1 2026-09-15T04:28:39.439612Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=838 selected_horizon=838 endpoint_lower_bound=576 lower_bound_gap=262 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:39.481426Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=2 tile=496 row_words=146 horizon=838 2026-09-15T04:28:39.539664Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=3 transfers=2773 maximum_identical_destinations=1 2026-09-15T04:28:39.539705Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=1088 selected_horizon=1088 endpoint_lower_bound=288 lower_bound_gap=800 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:39.547326Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=3 tile=677 row_words=17 horizon=1088 2026-09-15T04:28:40.405944Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=8 transfers=155252 maximum_identical_destinations=1 2026-09-15T04:28:40.406006Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=2112 selected_horizon=2112 endpoint_lower_bound=1728 lower_bound_gap=384 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.511377Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=45 transfers=65610 maximum_identical_destinations=1 2026-09-15T04:28:40.511428Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=4320 lower_bound_gap=1075 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.528602Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=8 tile=152 row_words=323 horizon=2112 2026-09-15T04:28:40.581040Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=9 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:28:40.581071Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5353 selected_horizon=5353 endpoint_lower_bound=3456 lower_bound_gap=1897 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.586253Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=9 tile=74 row_words=15 horizon=5353 2026-09-15T04:28:40.608754Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=45 tile=71 row_words=1061 horizon=5395 2026-09-15T04:28:40.609235Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=10 transfers=2181 maximum_identical_destinations=1 2026-09-15T04:28:40.609266Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=7015 selected_horizon=7015 endpoint_lower_bound=6912 lower_bound_gap=103 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.611622Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=10 tile=94 row_words=38 horizon=7015 2026-09-15T04:28:40.826270Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=46 transfers=11536 maximum_identical_destinations=1 2026-09-15T04:28:40.826314Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=2548 selected_horizon=2548 endpoint_lower_bound=2304 lower_bound_gap=244 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.835147Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=46 tile=164 row_words=113 horizon=2548 2026-09-15T04:28:40.863164Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=48 transfers=1056 maximum_identical_destinations=1 2026-09-15T04:28:40.863198Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=48 initial_horizon=1388 selected_horizon=1388 endpoint_lower_bound=1152 lower_bound_gap=236 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:40.864907Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=48 tile=79 row_words=38 horizon=1388 2026-09-15T04:28:41.041772Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=12 transfers=58256 maximum_identical_destinations=1 2026-09-15T04:28:41.041826Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=12 initial_horizon=2646 selected_horizon=2646 endpoint_lower_bound=2304 lower_bound_gap=342 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.099824Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=12 tile=79 row_words=488 horizon=2646 2026-09-15T04:28:41.106239Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=19 candidates=8748 ordinary_horizon=10862 paired_horizon=11632 use_paired=false 2026-09-15T04:28:41.195392Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=19 transfers=8748 maximum_identical_destinations=1 2026-09-15T04:28:41.195427Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=19 initial_horizon=10862 selected_horizon=10862 endpoint_lower_bound=7008 lower_bound_gap=3854 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.231576Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=19 tile=507 row_words=391 horizon=10862 2026-09-15T04:28:41.306100Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=20 transfers=1728 maximum_identical_destinations=1 2026-09-15T04:28:41.306135Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=1338 selected_horizon=1338 endpoint_lower_bound=1152 lower_bound_gap=186 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.316621Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=20 tile=1003 row_words=18 horizon=1338 2026-09-15T04:28:41.353109Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=29 transfers=2820 maximum_identical_destinations=1 2026-09-15T04:28:41.353135Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=29 initial_horizon=3578 selected_horizon=3578 endpoint_lower_bound=1076 lower_bound_gap=2502 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.360674Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=29 tile=1452 row_words=15 horizon=3578 2026-09-15T04:28:41.535300Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=38 transfers=24132 maximum_identical_destinations=1 2026-09-15T04:28:41.535349Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=8766 selected_horizon=8766 endpoint_lower_bound=7104 lower_bound_gap=1662 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.563569Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=38 tile=1051 row_words=117 horizon=8766 2026-09-15T04:28:41.724304Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=11 transfers=58280 maximum_identical_destinations=1 2026-09-15T04:28:41.724349Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=2452 selected_horizon=2452 endpoint_lower_bound=2304 lower_bound_gap=148 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:41.777122Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=11 tile=15 row_words=394 horizon=2452 2026-09-15T04:28:42.053781Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=27 transfers=22536 maximum_identical_destinations=1 2026-09-15T04:28:42.053831Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=27 initial_horizon=9429 selected_horizon=9429 endpoint_lower_bound=7104 lower_bound_gap=2325 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:42.075855Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=27 tile=854 row_words=108 horizon=9429 2026-09-15T04:28:43.999748Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=13 transfers=23616 maximum_identical_destinations=1 2026-09-15T04:28:43.999818Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=13 initial_horizon=3928 selected_horizon=3928 endpoint_lower_bound=3378 lower_bound_gap=550 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:44.059324Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=13 tile=13 row_words=481 horizon=3928 2026-09-15T04:28:45.639950Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=14 transfers=66320 maximum_identical_destinations=1 2026-09-15T04:28:45.640039Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=14 initial_horizon=6922 selected_horizon=6922 endpoint_lower_bound=3240 lower_bound_gap=3682 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:45.683100Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=14 tile=321 row_words=289 horizon=6922 2026-09-15T04:28:46.047596Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=0 transfers=28773 maximum_identical_destinations=1 2026-09-15T04:28:46.047669Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=7862 selected_horizon=7862 endpoint_lower_bound=6624 lower_bound_gap=1238 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:46.180371Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=0 tile=79 row_words=1289 horizon=7862 2026-09-15T04:28:46.323668Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=39 transfers=104344 maximum_identical_destinations=1 2026-09-15T04:28:46.323721Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=1541 selected_horizon=1541 endpoint_lower_bound=1152 lower_bound_gap=389 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:46.400041Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=39 tile=379 row_words=344 horizon=1541 2026-09-15T04:28:46.526243Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=40 candidates=72 ordinary_horizon=5142 paired_horizon=5319 use_paired=false 2026-09-15T04:28:46.536477Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=40 transfers=1529 maximum_identical_destinations=1 2026-09-15T04:28:46.536500Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=5142 selected_horizon=5142 endpoint_lower_bound=2368 lower_bound_gap=2774 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:46.546082Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=40 tile=263 row_words=22 horizon=5142 2026-09-15T04:28:46.565758Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=41 transfers=1294 maximum_identical_destinations=1 2026-09-15T04:28:46.565781Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:46.573480Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=41 tile=866 row_words=10 horizon=471 2026-09-15T04:28:47.003748Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=1 transfers=35568 maximum_identical_destinations=1 2026-09-15T04:28:47.003801Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=4658 selected_horizon=4658 endpoint_lower_bound=4096 lower_bound_gap=562 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:47.034468Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=1 tile=948 row_words=145 horizon=4658 2026-09-15T04:28:47.167434Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=15 transfers=38784 maximum_identical_destinations=1 2026-09-15T04:28:47.167486Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=15 initial_horizon=9044 selected_horizon=9044 endpoint_lower_bound=4864 lower_bound_gap=4180 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:47.205390Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=15 tile=630 row_words=218 horizon=9044 2026-09-15T04:28:47.329867Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=31 transfers=3096 maximum_identical_destinations=1 2026-09-15T04:28:47.329909Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=31 initial_horizon=5081 selected_horizon=5081 endpoint_lower_bound=2560 lower_bound_gap=2521 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:47.340231Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=16 transfers=44544 maximum_identical_destinations=1 2026-09-15T04:28:47.340270Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=16 initial_horizon=2786 selected_horizon=2786 endpoint_lower_bound=2496 lower_bound_gap=290 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:47.345894Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=31 tile=447 row_words=34 horizon=5081 2026-09-15T04:28:47.367295Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=16 tile=832 row_words=142 horizon=2786 2026-09-15T04:28:47.510244Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=7 transfers=50544 maximum_identical_destinations=1 2026-09-15T04:28:47.510287Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:47.543677Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=7 tile=473 row_words=171 horizon=9085 2026-09-15T04:28:48.271285Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=33 transfers=52174 maximum_identical_destinations=1 2026-09-15T04:28:48.271334Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=33 initial_horizon=866 selected_horizon=866 endpoint_lower_bound=576 lower_bound_gap=290 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:48.300057Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=33 tile=519 row_words=114 horizon=866 2026-09-15T04:28:49.410359Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=30 transfers=21112 maximum_identical_destinations=1 2026-09-15T04:28:49.410415Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=30 initial_horizon=20024 selected_horizon=20024 endpoint_lower_bound=19520 lower_bound_gap=504 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:49.471652Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=30 tile=481 row_words=1010 horizon=20024 2026-09-15T04:28:50.394566Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=28 transfers=195540 maximum_identical_destinations=1 2026-09-15T04:28:50.394620Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=28 initial_horizon=2648 selected_horizon=2648 endpoint_lower_bound=2152 lower_bound_gap=496 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:50.611738Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=28 tile=361 row_words=603 horizon=2648 2026-09-15T04:28:50.759765Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=37 candidates=26244 ordinary_horizon=10184 paired_horizon=37328 use_paired=false 2026-09-15T04:28:51.120938Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=37 transfers=28836 maximum_identical_destinations=1 2026-09-15T04:28:51.120988Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=10184 selected_horizon=10184 endpoint_lower_bound=5808 lower_bound_gap=4376 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:51.256515Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=32 transfers=155880 maximum_identical_destinations=1 2026-09-15T04:28:51.256579Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=32 initial_horizon=14092 selected_horizon=14092 endpoint_lower_bound=8640 lower_bound_gap=5452 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:51.303361Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=37 tile=634 row_words=1171 horizon=10184 2026-09-15T04:28:51.370977Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=32 tile=907 row_words=454 horizon=14092 2026-09-15T04:28:53.112513Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=26 transfers=35928 maximum_identical_destinations=1 2026-09-15T04:28:53.112593Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=26 initial_horizon=14211 selected_horizon=14211 endpoint_lower_bound=11616 lower_bound_gap=2595 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:28:53.449794Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=26 tile=464 row_words=2117 horizon=14211 2026-09-15T04:29:05.273474Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: compared ordinary and paired exchange schedules phase=6 candidates=26244 ordinary_horizon=14406 paired_horizon=60506 use_paired=false 2026-09-15T04:29:05.836089Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: prepared large physical exchange phase phase=6 transfers=28836 maximum_identical_destinations=1 2026-09-15T04:29:05.836157Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=14406 selected_horizon=14406 endpoint_lower_bound=9856 lower_bound_gap=4550 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:06.074797Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: finished large physical exchange phase phase=6 tile=557 row_words=2331 horizon=14406 2026-09-15T04:29:06.111062Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="schedule_provisional_exchanges"}: package build phase finished phase="schedule_provisional_exchanges" elapsed_ms=29847 success=true 2026-09-15T04:29:06.179183Z 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=68 success=true 2026-09-15T04:29:06.183405Z 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=4 success=true 2026-09-15T04:29:06.191187Z 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 2026-09-15T04:29:07.224155Z 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=55200 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0 2026-09-15T04:29:09.575349Z 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=233 success=true 2026-09-15T04:29:09.575441Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=380868 host_code_base=380872 host_code_bytes=8892 generated_code_bytes=12740 exchange_table_bytes=55200 executable_ranges=[(377716, 377720), (379900, 379904), (380868, 380872), (389832, 524288)] 2026-09-15T04:29:09.575474Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=380868 profile_bytes=0 exchange_table_bytes=55200 host_code_bytes=8892 host_data_bytes=6148 generated_code_bytes=12740 code_address=389832 available_ranges=[(327680, 360448), (368356, 376832), (475136, 949168)] 2026-09-15T04:29:10.820734Z 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=668 success=true 2026-09-15T04:29:10.873069Z 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 2026-09-15T04:29:10.874981Z 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 2026-09-15T04:29:10.875418Z 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 2026-09-15T04:29:10.875671Z 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=1457 maximum_identical_destinations=1 2026-09-15T04:29:10.875688Z 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=2828 selected_horizon=2828 endpoint_lower_bound=2304 lower_bound_gap=524 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.876226Z 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=42 transfers=1224 maximum_identical_destinations=1 2026-09-15T04:29:10.876243Z 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=42 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.880365Z 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=114 row_words=24 horizon=2828 2026-09-15T04:29:10.880453Z 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=42 tile=47 row_words=23 horizon=374 2026-09-15T04:29:10.881302Z 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 2026-09-15T04:29:10.881886Z 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 2026-09-15T04:29:10.882257Z 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=2193 maximum_identical_destinations=1 2026-09-15T04:29:10.882275Z 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=3113 selected_horizon=3113 endpoint_lower_bound=2304 lower_bound_gap=809 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.882788Z 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=60 transfers=1400 maximum_identical_destinations=1 2026-09-15T04:29:10.882807Z 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=60 initial_horizon=4006 selected_horizon=4006 endpoint_lower_bound=3920 lower_bound_gap=86 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.886760Z 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=54 row_words=25 horizon=3113 2026-09-15T04:29:10.887811Z 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 2026-09-15T04:29:10.888770Z 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=60 tile=39 row_words=39 horizon=4006 2026-09-15T04:29:10.896073Z 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 2026-09-15T04:29:10.896740Z 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=52 transfers=1294 maximum_identical_destinations=1 2026-09-15T04:29:10.896752Z 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=52 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.899514Z 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 2026-09-15T04:29:10.900106Z 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=35 transfers=1457 maximum_identical_destinations=1 2026-09-15T04:29:10.900116Z 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=35 initial_horizon=2978 selected_horizon=2978 endpoint_lower_bound=2304 lower_bound_gap=674 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.901433Z 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 2026-09-15T04:29:10.902143Z 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=44 transfers=1741 maximum_identical_destinations=1 2026-09-15T04:29:10.902152Z 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=44 initial_horizon=6408 selected_horizon=6408 endpoint_lower_bound=4644 lower_bound_gap=1764 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.903605Z 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=52 tile=866 row_words=10 horizon=471 2026-09-15T04:29:10.904065Z 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=44 tile=13 row_words=51 horizon=6408 2026-09-15T04:29:10.904504Z 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=35 tile=13 row_words=21 horizon=2978 2026-09-15T04:29:10.909907Z 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 2026-09-15T04:29:10.911032Z 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=61 transfers=2151 maximum_identical_destinations=1 2026-09-15T04:29:10.911049Z 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=61 initial_horizon=172 selected_horizon=172 endpoint_lower_bound=64 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.915779Z 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=61 tile=1104 row_words=41 horizon=172 2026-09-15T04:29:10.918380Z 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 2026-09-15T04:29:10.919096Z 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=53 transfers=1224 maximum_identical_destinations=1 2026-09-15T04:29:10.919109Z 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=53 initial_horizon=374 selected_horizon=374 endpoint_lower_bound=272 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.923222Z 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=53 tile=47 row_words=23 horizon=374 2026-09-15T04:29:10.928999Z 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=62 2026-09-15T04:29:10.929622Z 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=62 transfers=1075 maximum_identical_destinations=1 2026-09-15T04:29:10.929635Z 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=62 initial_horizon=216 selected_horizon=216 endpoint_lower_bound=4 lower_bound_gap=212 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.930938Z 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 2026-09-15T04:29:10.935046Z 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=62 tile=46 row_words=9 horizon=216 2026-09-15T04:29:10.938141Z 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 2026-09-15T04:29:10.940837Z 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 2026-09-15T04:29:10.947482Z 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 2026-09-15T04:29:10.949767Z 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 2026-09-15T04:29:10.953595Z 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 2026-09-15T04:29:10.959295Z 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 2026-09-15T04:29:10.959317Z 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=2961 selected_horizon=2961 endpoint_lower_bound=2304 lower_bound_gap=657 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.963893Z 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 2026-09-15T04:29:10.965383Z 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=163 row_words=116 horizon=2961 2026-09-15T04:29:10.966854Z 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 2026-09-15T04:29:10.984018Z 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 2026-09-15T04:29:10.984606Z 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=1438 maximum_identical_destinations=1 2026-09-15T04:29:10.984617Z 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=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:10.990715Z 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=875 row_words=10 horizon=1112 2026-09-15T04:29:11.061347Z 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 2026-09-15T04:29:11.067754Z 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=11648 maximum_identical_destinations=1 2026-09-15T04:29:11.067776Z 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=3015 selected_horizon=3015 endpoint_lower_bound=2304 lower_bound_gap=711 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.073863Z 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=85 row_words=90 horizon=3015 2026-09-15T04:29:11.433966Z 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 2026-09-15T04:29:11.445958Z 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=38 transfers=24132 maximum_identical_destinations=1 2026-09-15T04:29:11.445981Z 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=38 initial_horizon=8766 selected_horizon=8766 endpoint_lower_bound=7104 lower_bound_gap=1662 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.466351Z 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=38 tile=1051 row_words=117 horizon=8766 2026-09-15T04:29:11.831165Z 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=63 2026-09-15T04:29:11.836685Z 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 2026-09-15T04:29:11.848108Z 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=63 transfers=1024 maximum_identical_destinations=1 2026-09-15T04:29:11.848134Z 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=63 initial_horizon=548 selected_horizon=548 endpoint_lower_bound=112 lower_bound_gap=436 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.857862Z 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=45 transfers=65610 maximum_identical_destinations=1 2026-09-15T04:29:11.857883Z 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=45 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=4320 lower_bound_gap=1075 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.865066Z 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=63 tile=1017 row_words=100 horizon=548 2026-09-15T04:29:11.890479Z 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=64 2026-09-15T04:29:11.891495Z 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=64 transfers=1725 maximum_identical_destinations=1 2026-09-15T04:29:11.891512Z 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=64 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.899604Z 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=64 tile=1357 row_words=14 horizon=1112 2026-09-15T04:29:11.915104Z 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=65 2026-09-15T04:29:11.915818Z 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=65 transfers=1368 maximum_identical_destinations=1 2026-09-15T04:29:11.915831Z 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=65 initial_horizon=406 selected_horizon=406 endpoint_lower_bound=304 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:11.920916Z 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=65 tile=47 row_words=25 horizon=406 2026-09-15T04:29:11.922557Z 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=45 tile=71 row_words=1061 horizon=5395 2026-09-15T04:29:11.928022Z 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=66 2026-09-15T04:29:11.934672Z 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=67 2026-09-15T04:29:11.942446Z 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=68 2026-09-15T04:29:12.047615Z 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 2026-09-15T04:29:12.051544Z 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=46 transfers=11536 maximum_identical_destinations=1 2026-09-15T04:29:12.051573Z 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=46 initial_horizon=2548 selected_horizon=2548 endpoint_lower_bound=2304 lower_bound_gap=244 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:12.057998Z 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=46 tile=164 row_words=113 horizon=2548 2026-09-15T04:29:12.064838Z 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 2026-09-15T04:29:12.074105Z 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 2026-09-15T04:29:12.074536Z 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=1056 maximum_identical_destinations=1 2026-09-15T04:29:12.074546Z 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=1388 selected_horizon=1388 endpoint_lower_bound=1152 lower_bound_gap=236 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:12.075850Z 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=79 row_words=38 horizon=1388 2026-09-15T04:29:12.077813Z 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 2026-09-15T04:29:12.079056Z 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 2026-09-15T04:29:12.318513Z 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 2026-09-15T04:29:12.334911Z 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=50544 maximum_identical_destinations=1 2026-09-15T04:29:12.334935Z 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=9085 selected_horizon=9085 endpoint_lower_bound=7424 lower_bound_gap=1661 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:12.356062Z 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=473 row_words=171 horizon=9085 2026-09-15T04:29:12.400182Z 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 2026-09-15T04:29:13.175541Z 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 2026-09-15T04:29:13.208738Z 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=58256 maximum_identical_destinations=1 2026-09-15T04:29:13.208772Z 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=2646 selected_horizon=2646 endpoint_lower_bound=2304 lower_bound_gap=342 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:13.261041Z 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=79 row_words=488 horizon=2646 2026-09-15T04:29:14.003877Z 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 2026-09-15T04:29:14.058594Z 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=104344 maximum_identical_destinations=1 2026-09-15T04:29:14.058626Z 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=1541 selected_horizon=1541 endpoint_lower_bound=1152 lower_bound_gap=389 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.064547Z 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 2026-09-15T04:29:14.114083Z 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=8748 maximum_identical_destinations=1 2026-09-15T04:29:14.114117Z 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=10862 selected_horizon=10862 endpoint_lower_bound=7008 lower_bound_gap=3854 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.124845Z 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=379 row_words=344 horizon=1541 2026-09-15T04:29:14.148505Z 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=507 row_words=391 horizon=10862 2026-09-15T04:29:14.170532Z 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 2026-09-15T04:29:14.171766Z 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=1529 maximum_identical_destinations=1 2026-09-15T04:29:14.171785Z 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=5142 selected_horizon=5142 endpoint_lower_bound=2368 lower_bound_gap=2774 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.178450Z 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=263 row_words=22 horizon=5142 2026-09-15T04:29:14.192100Z 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 2026-09-15T04:29:14.192607Z 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=1294 maximum_identical_destinations=1 2026-09-15T04:29:14.192620Z 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=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.198225Z 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=866 row_words=10 horizon=471 2026-09-15T04:29:14.212432Z 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 2026-09-15T04:29:14.214713Z 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=1728 maximum_identical_destinations=1 2026-09-15T04:29:14.214732Z 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=1338 selected_horizon=1338 endpoint_lower_bound=1152 lower_bound_gap=186 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.224776Z 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=1003 row_words=18 horizon=1338 2026-09-15T04:29:14.225928Z 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 2026-09-15T04:29:14.226946Z 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=2820 maximum_identical_destinations=1 2026-09-15T04:29:14.226961Z 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=3578 selected_horizon=3578 endpoint_lower_bound=1076 lower_bound_gap=2502 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.233756Z 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=1452 row_words=15 horizon=3578 2026-09-15T04:29:14.276308Z 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=8 2026-09-15T04:29:14.359817Z 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=155252 maximum_identical_destinations=1 2026-09-15T04:29:14.359852Z 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=2112 selected_horizon=2112 endpoint_lower_bound=1728 lower_bound_gap=384 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.491368Z 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=152 row_words=323 horizon=2112 2026-09-15T04:29:14.535999Z 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 2026-09-15T04:29:14.536667Z 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=1457 maximum_identical_destinations=1 2026-09-15T04:29:14.536681Z 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=5353 selected_horizon=5353 endpoint_lower_bound=3456 lower_bound_gap=1897 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.541627Z 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=74 row_words=15 horizon=5353 2026-09-15T04:29:14.576921Z 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=2181 maximum_identical_destinations=1 2026-09-15T04:29:14.576948Z 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=7015 selected_horizon=7015 endpoint_lower_bound=6912 lower_bound_gap=103 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:14.579520Z 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=94 row_words=38 horizon=7015 2026-09-15T04:29:14.678687Z 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 2026-09-15T04:29:14.691929Z 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=20656 maximum_identical_destinations=1 2026-09-15T04:29:14.691962Z 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=4485 selected_horizon=4485 endpoint_lower_bound=3648 lower_bound_gap=837 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:14.715709Z 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=535 row_words=106 horizon=4485 2026-09-15T04:29:15.600577Z 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 2026-09-15T04:29:15.633602Z 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=58280 maximum_identical_destinations=1 2026-09-15T04:29:15.633637Z 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=2452 selected_horizon=2452 endpoint_lower_bound=2304 lower_bound_gap=148 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:15.693878Z 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=15 row_words=394 horizon=2452 2026-09-15T04:29:15.720733Z 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=23 2026-09-15T04:29:15.721404Z 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=1457 maximum_identical_destinations=1 2026-09-15T04:29:15.721418Z 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=2909 selected_horizon=2909 endpoint_lower_bound=2304 lower_bound_gap=605 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:15.726091Z 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=22 row_words=23 horizon=2909 2026-09-15T04:29:15.742475Z 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=24 2026-09-15T04:29:15.743071Z 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=1457 maximum_identical_destinations=1 2026-09-15T04:29:15.743080Z 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=2969 selected_horizon=2969 endpoint_lower_bound=2304 lower_bound_gap=665 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:15.747855Z 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=13 row_words=19 horizon=2969 2026-09-15T04:29:16.008010Z 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 2026-09-15T04:29:16.081539Z 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=23616 maximum_identical_destinations=1 2026-09-15T04:29:16.081582Z 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=3928 selected_horizon=3928 endpoint_lower_bound=3378 lower_bound_gap=550 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:16.143336Z 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=13 row_words=481 horizon=3928 2026-09-15T04:29:16.157240Z 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 2026-09-15T04:29:16.197076Z 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=51948 maximum_identical_destinations=1 2026-09-15T04:29:16.197108Z 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=859 selected_horizon=859 endpoint_lower_bound=576 lower_bound_gap=283 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:16.244296Z 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=68 row_words=172 horizon=859 2026-09-15T04:29:17.494099Z 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 2026-09-15T04:29:17.530417Z 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=52102 maximum_identical_destinations=1 2026-09-15T04:29:17.530449Z 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=838 selected_horizon=838 endpoint_lower_bound=576 lower_bound_gap=262 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:17.571021Z 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 2026-09-15T04:29:17.573170Z 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=496 row_words=146 horizon=838 2026-09-15T04:29:17.615150Z 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=38784 maximum_identical_destinations=1 2026-09-15T04:29:17.615195Z 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=9044 selected_horizon=9044 endpoint_lower_bound=4864 lower_bound_gap=4180 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:17.617142Z 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 2026-09-15T04:29:17.618637Z 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=2773 maximum_identical_destinations=1 2026-09-15T04:29:17.618657Z 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=1088 selected_horizon=1088 endpoint_lower_bound=288 lower_bound_gap=800 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:17.627432Z 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=677 row_words=17 horizon=1088 2026-09-15T04:29:17.659605Z 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=630 row_words=218 horizon=9044 2026-09-15T04:29:17.808056Z 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=31 transfers=3096 maximum_identical_destinations=1 2026-09-15T04:29:17.808100Z 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=31 initial_horizon=4635 selected_horizon=4635 endpoint_lower_bound=2560 lower_bound_gap=2075 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:17.825153Z 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=31 tile=445 row_words=35 horizon=4635 2026-09-15T04:29:18.529310Z 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 2026-09-15T04:29:18.565033Z 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=44544 maximum_identical_destinations=1 2026-09-15T04:29:18.565065Z 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=2786 selected_horizon=2786 endpoint_lower_bound=2496 lower_bound_gap=290 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:18.607242Z 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=832 row_words=142 horizon=2786 2026-09-15T04:29:18.688964Z 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 2026-09-15T04:29:18.689019Z 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=7105 selected_horizon=7105 endpoint_lower_bound=3240 lower_bound_gap=3865 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:18.733706Z 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=320 row_words=295 horizon=7105 2026-09-15T04:29:18.851280Z 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=27 2026-09-15T04:29:18.865308Z 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=22536 maximum_identical_destinations=1 2026-09-15T04:29:18.865340Z 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=9429 selected_horizon=9429 endpoint_lower_bound=7104 lower_bound_gap=2325 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:18.887889Z 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=854 row_words=108 horizon=9429 2026-09-15T04:29:19.417909Z 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 2026-09-15T04:29:19.526363Z 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=21112 maximum_identical_destinations=1 2026-09-15T04:29:19.526406Z 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=20024 selected_horizon=20024 endpoint_lower_bound=19520 lower_bound_gap=504 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:19.612929Z 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=481 row_words=1010 horizon=20024 2026-09-15T04:29:19.734712Z 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 2026-09-15T04:29:19.770637Z 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=52174 maximum_identical_destinations=1 2026-09-15T04:29:19.770683Z 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=866 selected_horizon=866 endpoint_lower_bound=576 lower_bound_gap=290 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:19.805561Z 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=519 row_words=114 horizon=866 2026-09-15T04:29:20.351100Z 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 2026-09-15T04:29:20.379486Z 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=35568 maximum_identical_destinations=1 2026-09-15T04:29:20.379530Z 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=4658 selected_horizon=4658 endpoint_lower_bound=4096 lower_bound_gap=562 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:20.412466Z 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=948 row_words=145 horizon=4658 2026-09-15T04:29:20.466794Z 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 2026-09-15T04:29:20.751862Z 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=28773 maximum_identical_destinations=1 2026-09-15T04:29:20.751917Z 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=7862 selected_horizon=7862 endpoint_lower_bound=6624 lower_bound_gap=1238 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:20.886737Z 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=79 row_words=1289 horizon=7862 2026-09-15T04:29:21.556031Z 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 2026-09-15T04:29:21.732107Z 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=28836 maximum_identical_destinations=1 2026-09-15T04:29:21.732164Z 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=10184 selected_horizon=10184 endpoint_lower_bound=5808 lower_bound_gap=4376 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:21.897951Z 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=634 row_words=1171 horizon=10184 2026-09-15T04:29:24.632750Z 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=28 2026-09-15T04:29:24.753410Z 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=195540 maximum_identical_destinations=1 2026-09-15T04:29:24.753453Z 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=2648 selected_horizon=2648 endpoint_lower_bound=2152 lower_bound_gap=496 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:24.944873Z 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=361 row_words=603 horizon=2648 2026-09-15T04:29:25.096072Z 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=155880 maximum_identical_destinations=1 2026-09-15T04:29:25.096127Z 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=14328 selected_horizon=14328 endpoint_lower_bound=8640 lower_bound_gap=5688 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:25.216847Z 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=907 row_words=458 horizon=14328 2026-09-15T04:29:30.459672Z 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 2026-09-15T04:29:30.904086Z 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=6 transfers=28836 maximum_identical_destinations=1 2026-09-15T04:29:30.904134Z 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=6 initial_horizon=14406 selected_horizon=14406 endpoint_lower_bound=9856 lower_bound_gap=4550 selected_kind="reused" neighborhood_improvements=0 2026-09-15T04:29:31.246997Z 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=6 tile=557 row_words=2331 horizon=14406 2026-09-15T04:29:41.189998Z 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=35928 maximum_identical_destinations=1 2026-09-15T04:29:41.190034Z 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=13789 selected_horizon=13789 endpoint_lower_bound=11616 lower_bound_gap=2173 selected_kind="balanced-compact-streams" neighborhood_improvements=0 2026-09-15T04:29:41.358706Z 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=648 row_words=2108 horizon=13789 2026-09-15T04:29:41.378800Z 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=30557 success=true 2026-09-15T04:29:56.558724Z 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=15179 success=true 2026-09-15T04:29:56.577827Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=13311082 final_exchange=5438302 2026-09-15T04:29:58.291599Z 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=354 success=true 2026-09-15T04:29:58.386875Z 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=95 success=true 2026-09-15T04:29:58.806050Z 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=381 success=true 2026-09-15T04:29:58.861981Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: validated search incumbent cycles=13311082 resuming=true 2026-09-15T04:29:58.915560Z INFO ipu_codegen.package.build{tile_count=1472 operations=25}:ipu_codegen.package.phase{phase="plan_package"}: saved mid-plan search state path=artifacts/structure-refactor-20260915/typed-attention/real-bs1-final/state.json attempts=0 bytes=15044982 2026-09-15T04:29:59.064545Z 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=94125 success=true 2026-09-15T04:29:59.583991Z INFO writing application package tiles=1472 2026-09-15T04:29:59.676962Z INFO application package written 2026-09-15T04:29:59.677257Z INFO reading application package 2026-09-15T04:29:59.882026Z INFO application package read tiles=1472 compiler=0.1.0 2026-09-15T04:29:59.888826Z INFO waiting for hardware ownership path=/tmp/ipu-stack-device.lock 2026-09-15T04:29:59.888839Z INFO acquired hardware ownership path=/tmp/ipu-stack-device.lock 2026-09-15T04:29:59.888846Z INFO opening IPU device path="/dev/ipu0" 2026-09-15T04:29:59.888877Z INFO IPU device attached path=/dev/ipu0 2026-09-15T04:29:59.888880Z INFO initializing IPU device 2026-09-15T04:29:59.897062Z INFO IPU device initialized 2026-09-15T04:29:59.897107Z INFO replaying device configuration register_writes=2003 2026-09-15T04:29:59.922689Z INFO loading application tile_count=1472 final_mark=23 2026-09-15T04:30:00.153665Z INFO application loaded and initial synchronization completed tile_count=1472 2026-09-15T04:30:06.393890Z INFO starting host exchange session startup_mark=23 2026-09-15T04:30:06.393920Z INFO attaching host exchange pages pages=2 2026-09-15T04:30:06.394694Z INFO host exchange session started 2026-09-15T04:30:06.396920Z INFO invoking host exchange call call="initialize" command=0 phases=342 2026-09-15T04:30:06.540429Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=authors referenceMinimumCosineSimilarity=0.994567066 referenceMaximumAbsoluteError=0.181597 numericalTest=PASS 2026-09-15T04:30:06.560498Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=siglip referenceMinimumCosineSimilarity=0.996543687 referenceMaximumAbsoluteError=0.166239 numericalTest=PASS 2026-09-15T04:30:06.580272Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=caffeine referenceMinimumCosineSimilarity=0.997382663 referenceMaximumAbsoluteError=0.130626 numericalTest=PASS 2026-09-15T04:30:06.600034Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=robosign referenceMinimumCosineSimilarity=0.995361503 referenceMaximumAbsoluteError=0.310924 numericalTest=PASS 2026-09-15T04:30:06.619535Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=fried_fish referenceMinimumCosineSimilarity=0.996956592 referenceMaximumAbsoluteError=0.157906 numericalTest=PASS 2026-09-15T04:30:06.640100Z INFO invoking host exchange call call="run" command=0 phases=7 referenceFixtureCase=cow_beach2 referenceMinimumCosineSimilarity=0.997177897 referenceMaximumAbsoluteError=0.165668 numericalTest=PASS package=artifacts/structure-refactor-20260915/typed-attention/real-bs1-final/model.ipuexe tiles=1472 hardwareTest=PASS