2026-09-12T14:19:34.793925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-12T14:20:17.565161Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: screened exchange table geometry expansion_ms=7828 expansion_and_footprint_ms=10028 estimated_row_bytes=142912 heuristic_row_bytes=440264 geometry_fragments_per_tile=15017 fragment_limit=16384
2026-09-12T14:20:17.731103Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: eliminated unread FP8 cast input padding clears removed=1296
2026-09-12T14:20:18.566372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=39 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.566442Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=39 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.568896Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=67 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:20:18.568951Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=67 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.571057Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=39 tile=502 row_words=67 horizon=7200
2026-09-12T14:20:18.571636Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=67 tile=13 row_words=23 horizon=646
2026-09-12T14:20:18.585748Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=43 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.585819Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=43 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.590232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=76 candidates=34 ordinary_horizon=1264 paired_horizon=2801 use_paired=false
2026-09-12T14:20:18.591298Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=43 tile=547 row_words=72 horizon=7200
2026-09-12T14:20:18.600746Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=40 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.600787Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=40 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.603669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=40 tile=510 row_words=71 horizon=7200
2026-09-12T14:20:18.604071Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=3 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.604119Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=3 initial_horizon=4720 selected_horizon=4720 endpoint_lower_bound=4608 lower_bound_gap=112 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.611696Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=3 tile=1247 row_words=106 horizon=4720
2026-09-12T14:20:18.613651Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=77 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:20:18.613693Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=77 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.613953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=120 transfers=2207 maximum_identical_destinations=1
2026-09-12T14:20:18.614012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=120 initial_horizon=223 selected_horizon=223 endpoint_lower_bound=112 lower_bound_gap=111 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.616109Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=77 tile=866 row_words=10 horizon=471
2026-09-12T14:20:18.616352Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=1 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:20:18.616411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=1 initial_horizon=963 selected_horizon=963 endpoint_lower_bound=768 lower_bound_gap=195 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.617356Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=120 tile=27 row_words=71 horizon=223
2026-09-12T14:20:18.617471Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=82 candidates=64 ordinary_horizon=231 paired_horizon=1250 use_paired=false
2026-09-12T14:20:18.621393Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=1 tile=903 row_words=16 horizon=963
2026-09-12T14:20:18.630663Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=41 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.630710Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=41 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.630670Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=44 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.630770Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=44 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.631539Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=78 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:20:18.631570Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=78 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.632699Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=78 tile=13 row_words=23 horizon=646
2026-09-12T14:20:18.633281Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=41 tile=382 row_words=72 horizon=7200
2026-09-12T14:20:18.633899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=44 tile=269 row_words=72 horizon=7201
2026-09-12T14:20:18.637175Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=65 candidates=136 ordinary_horizon=193 paired_horizon=576 use_paired=false
2026-09-12T14:20:18.660494Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=66 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:20:18.660632Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=66 initial_horizon=471 selected_horizon=471 endpoint_lower_bound=256 lower_bound_gap=215 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.664309Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=66 tile=866 row_words=10 horizon=471
2026-09-12T14:20:18.684460Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=42 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.684553Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=42 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.685527Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=45 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:18.685587Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=45 initial_horizon=7196 selected_horizon=7196 endpoint_lower_bound=7104 lower_bound_gap=92 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.691185Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=42 tile=248 row_words=71 horizon=7200
2026-09-12T14:20:18.693070Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=45 tile=574 row_words=72 horizon=7196
2026-09-12T14:20:18.695570Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=7 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.695629Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=7 initial_horizon=4007 selected_horizon=4007 endpoint_lower_bound=3936 lower_bound_gap=71 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.701143Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=7 tile=875 row_words=88 horizon=4007
2026-09-12T14:20:18.708878Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=4 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.708934Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=4 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4032 lower_bound_gap=118 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.712249Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=83 candidates=110 ordinary_horizon=194 paired_horizon=346 use_paired=false
2026-09-12T14:20:18.715337Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=4 tile=1267 row_words=94 horizon=4150
2026-09-12T14:20:18.721528Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=2 transfers=9792 maximum_identical_destinations=1
2026-09-12T14:20:18.721573Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=2 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=5280 lower_bound_gap=115 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.727439Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=2 tile=981 row_words=124 horizon=5395
2026-09-12T14:20:18.742763Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=84 transfers=1438 maximum_identical_destinations=1
2026-09-12T14:20:18.742822Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=84 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.747057Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=84 tile=875 row_words=10 horizon=1112
2026-09-12T14:20:18.765701Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=8 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.765753Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=8 initial_horizon=4579 selected_horizon=4579 endpoint_lower_bound=4512 lower_bound_gap=67 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.772517Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=8 tile=1149 row_words=101 horizon=4579
2026-09-12T14:20:18.772545Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=121 transfers=1471 maximum_identical_destinations=1
2026-09-12T14:20:18.772578Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=121 initial_horizon=4358 selected_horizon=4358 endpoint_lower_bound=4300 lower_bound_gap=58 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.774292Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=121 tile=0 row_words=1476 horizon=4358
2026-09-12T14:20:18.787591Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=5 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.787631Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=5 initial_horizon=3571 selected_horizon=3571 endpoint_lower_bound=3456 lower_bound_gap=115 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.794411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=5 tile=1055 row_words=82 horizon=3571
2026-09-12T14:20:18.795012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=123 transfers=1725 maximum_identical_destinations=1
2026-09-12T14:20:18.795050Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=123 initial_horizon=1112 selected_horizon=1112 endpoint_lower_bound=896 lower_bound_gap=216 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.798257Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=123 tile=1357 row_words=14 horizon=1112
2026-09-12T14:20:18.806778Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=122 candidates=38 ordinary_horizon=4410 paired_horizon=4738 use_paired=false
2026-09-12T14:20:18.816644Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=124 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:20:18.816676Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=124 initial_horizon=710 selected_horizon=710 endpoint_lower_bound=608 lower_bound_gap=102 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.817857Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=124 tile=13 row_words=25 horizon=710
2026-09-12T14:20:18.832868Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=9 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.832911Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=9 initial_horizon=5150 selected_horizon=5150 endpoint_lower_bound=5088 lower_bound_gap=62 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.838180Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=9 tile=1172 row_words=112 horizon=5150
2026-09-12T14:20:18.867013Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=6 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.867048Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=6 initial_horizon=3437 selected_horizon=3437 endpoint_lower_bound=3360 lower_bound_gap=77 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.872958Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=6 tile=1089 row_words=76 horizon=3437
2026-09-12T14:20:18.878569Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=71 transfers=23040 maximum_identical_destinations=1
2026-09-12T14:20:18.878627Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=71 initial_horizon=2415 selected_horizon=2415 endpoint_lower_bound=2304 lower_bound_gap=111 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.893101Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=71 tile=185 row_words=107 horizon=2415
2026-09-12T14:20:18.897963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=10 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:20:18.898012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=10 initial_horizon=5741 selected_horizon=5741 endpoint_lower_bound=5664 lower_bound_gap=77 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.904039Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=10 tile=946 row_words=132 horizon=5741
2026-09-12T14:20:18.915427Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=72 transfers=1440 maximum_identical_destinations=1
2026-09-12T14:20:18.915534Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=72 initial_horizon=448 selected_horizon=448 endpoint_lower_bound=360 lower_bound_gap=88 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.918080Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=72 tile=29 row_words=51 horizon=448
2026-09-12T14:20:18.935961Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=48 candidates=18 ordinary_horizon=1890 paired_horizon=1948 use_paired=false
2026-09-12T14:20:18.979967Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=13 transfers=2193 maximum_identical_destinations=1
2026-09-12T14:20:18.980025Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=13 initial_horizon=702 selected_horizon=702 endpoint_lower_bound=576 lower_bound_gap=126 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:18.982902Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=13 tile=622 row_words=15 horizon=702
2026-09-12T14:20:19.018326Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=55 transfers=2160 maximum_identical_destinations=1
2026-09-12T14:20:19.018372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=55 initial_horizon=18627 selected_horizon=18627 endpoint_lower_bound=18432 lower_bound_gap=195 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.024656Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=55 tile=488 row_words=54 horizon=18627
2026-09-12T14:20:19.025054Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=35 transfers=6672 maximum_identical_destinations=1
2026-09-12T14:20:19.025097Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=35 initial_horizon=7208 selected_horizon=7208 endpoint_lower_bound=7104 lower_bound_gap=104 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.030075Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=35 tile=440 row_words=75 horizon=7208
2026-09-12T14:20:19.061800Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=37 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:19.061852Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=37 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.065246Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=37 tile=622 row_words=66 horizon=7202
2026-09-12T14:20:19.069412Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=36 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:19.069457Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=36 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.072552Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=36 tile=318 row_words=67 horizon=7202
2026-09-12T14:20:19.119078Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=38 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:20:19.119137Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=38 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.123143Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=38 tile=486 row_words=67 horizon=7201
2026-09-12T14:20:19.154882Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=17 transfers=5710 maximum_identical_destinations=1
2026-09-12T14:20:19.154951Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=17 initial_horizon=9580 selected_horizon=9580 endpoint_lower_bound=9472 lower_bound_gap=108 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.165701Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=17 tile=1141 row_words=34 horizon=9580
2026-09-12T14:20:19.251466Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=59 candidates=18 ordinary_horizon=1890 paired_horizon=1704 use_paired=false
2026-09-12T14:20:19.266779Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=62 transfers=8580 maximum_identical_destinations=1
2026-09-12T14:20:19.266834Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=62 initial_horizon=9578 selected_horizon=9578 endpoint_lower_bound=7104 lower_bound_gap=2474 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.276653Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=62 tile=495 row_words=42 horizon=9578
2026-09-12T14:20:19.280963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=56 transfers=17040 maximum_identical_destinations=1
2026-09-12T14:20:19.281010Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=56 initial_horizon=9228 selected_horizon=9228 endpoint_lower_bound=7296 lower_bound_gap=1932 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.295880Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=56 tile=1435 row_words=74 horizon=9228
2026-09-12T14:20:19.316019Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=14 candidates=18 ordinary_horizon=1890 paired_horizon=2104 use_paired=false
2026-09-12T14:20:19.462640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=33 transfers=23312 maximum_identical_destinations=1
2026-09-12T14:20:19.462712Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=33 initial_horizon=2781 selected_horizon=2781 endpoint_lower_bound=1152 lower_bound_gap=1629 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:19.475031Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=33 tile=209 row_words=140 horizon=2781
2026-09-12T14:20:20.028357Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=51 transfers=41964 maximum_identical_destinations=1
2026-09-12T14:20:20.028423Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=51 initial_horizon=6348 selected_horizon=6348 endpoint_lower_bound=5120 lower_bound_gap=1228 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:20.053435Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=51 tile=307 row_words=127 horizon=6348
2026-09-12T14:20:21.205616Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=11 transfers=104868 maximum_identical_destinations=1
2026-09-12T14:20:21.205693Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=11 initial_horizon=1396 selected_horizon=1396 endpoint_lower_bound=1152 lower_bound_gap=244 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:21.312906Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=11 tile=572 row_words=350 horizon=1396
2026-09-12T14:20:22.174849Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=46 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:20:22.174919Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=46 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:22.305686Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=46 tile=173 row_words=481 horizon=1440
2026-09-12T14:20:22.323146Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=57 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:20:22.323231Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=57 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:22.426039Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=57 tile=173 row_words=481 horizon=1440
2026-09-12T14:20:27.162325Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=63 transfers=209796 maximum_identical_destinations=1
2026-09-12T14:20:27.162400Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=63 initial_horizon=2759 selected_horizon=2759 endpoint_lower_bound=2304 lower_bound_gap=455 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:27.411732Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=63 tile=58 row_words=929 horizon=2759
2026-09-12T14:20:28.701418Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=52 transfers=391902 maximum_identical_destinations=1
2026-09-12T14:20:28.701495Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=52 initial_horizon=4788 selected_horizon=4788 endpoint_lower_bound=4304 lower_bound_gap=484 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:29.176804Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=52 tile=446 row_words=1095 horizon=4788
2026-09-12T14:20:35.000115Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=34 candidates=52488 ordinary_horizon=8788 paired_horizon=52613 use_paired=false
2026-09-12T14:20:35.383888Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=34 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:20:35.383954Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=34 initial_horizon=8788 selected_horizon=8788 endpoint_lower_bound=5856 lower_bound_gap=2932 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:35.542831Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=34 tile=330 row_words=1172 horizon=8788
2026-09-12T14:20:41.673794Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=0 candidates=26244 ordinary_horizon=9037 paired_horizon=27117 use_paired=false
2026-09-12T14:20:42.026129Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=0 transfers=27702 maximum_identical_destinations=1
2026-09-12T14:20:42.026196Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=0 initial_horizon=9037 selected_horizon=9037 endpoint_lower_bound=3904 lower_bound_gap=5133 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:42.188301Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=0 tile=565 row_words=1221 horizon=9037
2026-09-12T14:20:46.823632Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=61 candidates=52488 ordinary_horizon=24156 paired_horizon=91210 use_paired=false
2026-09-12T14:20:47.464596Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=61 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:20:47.464642Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=61 initial_horizon=24156 selected_horizon=24156 endpoint_lower_bound=11712 lower_bound_gap=12444 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:47.699994Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=61 tile=70 row_words=2068 horizon=24156
2026-09-12T14:20:55.564801Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=16 candidates=52488 ordinary_horizon=31983 paired_horizon=139822 use_paired=false
2026-09-12T14:20:56.186628Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=16 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:20:56.186662Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=16 initial_horizon=31983 selected_horizon=31983 endpoint_lower_bound=17568 lower_bound_gap=14415 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:20:56.408392Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=16 tile=556 row_words=3002 horizon=31983
2026-09-12T14:21:01.698722Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=54 candidates=195372 ordinary_horizon=8729 paired_horizon=64536 use_paired=false
2026-09-12T14:21:02.501112Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=54 transfers=196830 maximum_identical_destinations=1
2026-09-12T14:21:02.501150Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=54 initial_horizon=8729 selected_horizon=8729 endpoint_lower_bound=7296 lower_bound_gap=1433 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:21:02.960460Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=54 tile=105 row_words=2421 horizon=8729
2026-09-12T14:21:11.571425Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=18 transfers=314620 maximum_identical_destinations=1
2026-09-12T14:21:11.571476Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=18 initial_horizon=3970 selected_horizon=3970 endpoint_lower_bound=3456 lower_bound_gap=514 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:21:11.828892Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=18 tile=291 row_words=1261 horizon=3970
2026-09-12T14:21:16.685025Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=70 transfers=139808 maximum_identical_destinations=1
2026-09-12T14:21:16.685061Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=70 initial_horizon=13086 selected_horizon=13086 endpoint_lower_bound=8164 lower_bound_gap=4922 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:21:16.760100Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=70 tile=150 row_words=2143 horizon=13086
2026-09-12T14:21:18.395638Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=20 transfers=163088 maximum_identical_destinations=1
2026-09-12T14:21:18.395681Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=20 initial_horizon=5081 selected_horizon=5081 endpoint_lower_bound=3456 lower_bound_gap=1625 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:21:18.613897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=20 tile=605 row_words=749 horizon=5081
2026-09-12T14:22:01.491243Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: compared ordinary and paired exchange schedules phase=50 candidates=52488 ordinary_horizon=25757 paired_horizon=158889 use_paired=false
2026-09-12T14:22:02.872566Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: prepared large physical exchange phase phase=50 transfers=62172 maximum_identical_destinations=1
2026-09-12T14:22:02.872613Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: optimized physical exchange schedule phase=50 initial_horizon=25757 selected_horizon=25757 endpoint_lower_bound=23424 lower_bound_gap=2333 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:03.340849Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: finished large physical exchange phase phase=50 tile=538 row_words=4459 horizon=25757
2026-09-12T14:22:03.559316Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=108 success=true
2026-09-12T14:22:03.564467Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=5 success=true
2026-09-12T14:22:03.575279Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=4 success=true
2026-09-12T14:22:05.002142Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: exchange table and repeat patch storage exchange_table_bytes=99524 maximum_uncompressed_repeat_patch_bytes=0 maximum_elided_arithmetic_patch_bytes=0
2026-09-12T14:22:07.088669Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}: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=208 success=true
2026-09-12T14:22:07.088731Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: placing generated tile programs linked_end=392636 host_code_base=392640 host_code_bytes=972 generated_code_bytes=12880 exchange_table_bytes=99524 executable_ranges=[(377220, 377224), (378124, 378128), (381724, 381728), (382612, 382616), (383500, 383504), (384084, 384088), (386100, 386104), (387812, 387816), (389828, 389832), (390804, 390808), (392636, 392640), (393680, 524288)]
2026-09-12T14:22:07.088758Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: allocated package support memory linked_end=392636 profile_bytes=0 exchange_table_bytes=99524 host_code_bytes=972 host_data_bytes=716 generated_code_bytes=12880 code_address=393680 available_ranges=[(327680, 360448), (362924, 376832), (524288, 949168)]
2026-09-12T14:22:07.662074Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=573 success=true
2026-09-12T14:22:07.672318Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=15
2026-09-12T14:22:07.729604Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=17
2026-09-12T14:22:07.731896Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=9
2026-09-12T14:22:07.732534Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=17 transfers=5710 maximum_identical_destinations=1
2026-09-12T14:22:07.732554Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=17 initial_horizon=9580 selected_horizon=9580 endpoint_lower_bound=9472 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.734516Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=9 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.734531Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=9 initial_horizon=5150 selected_horizon=5150 endpoint_lower_bound=5088 lower_bound_gap=62 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.736539Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=3
2026-09-12T14:22:07.737963Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=9 tile=1172 row_words=112 horizon=5150
2026-09-12T14:22:07.738471Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=17 tile=1141 row_words=34 horizon=9580
2026-09-12T14:22:07.740837Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=3 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.740856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=3 initial_horizon=4720 selected_horizon=4720 endpoint_lower_bound=4608 lower_bound_gap=112 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.741492Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=31
2026-09-12T14:22:07.742156Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=19
2026-09-12T14:22:07.743931Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=27
2026-09-12T14:22:07.746043Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=3 tile=1247 row_words=106 horizon=4720
2026-09-12T14:22:07.747312Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=29
2026-09-12T14:22:07.751534Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=23
2026-09-12T14:22:07.751541Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=1 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:22:07.751600Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=1 initial_horizon=1718 selected_horizon=1718 endpoint_lower_bound=768 lower_bound_gap=950 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:07.754787Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=1 tile=1166 row_words=18 horizon=1718
2026-09-12T14:22:07.755244Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=13
2026-09-12T14:22:07.756053Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=13 transfers=2193 maximum_identical_destinations=1
2026-09-12T14:22:07.756067Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=13 initial_horizon=702 selected_horizon=702 endpoint_lower_bound=576 lower_bound_gap=126 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.758152Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=13 tile=622 row_words=15 horizon=702
2026-09-12T14:22:07.770421Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=2
2026-09-12T14:22:07.775083Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=2 transfers=9792 maximum_identical_destinations=1
2026-09-12T14:22:07.775110Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=2 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=5280 lower_bound_gap=115 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.780595Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=10
2026-09-12T14:22:07.780867Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=2 tile=981 row_words=124 horizon=5395
2026-09-12T14:22:07.783140Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=10 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.783154Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=10 initial_horizon=5741 selected_horizon=5741 endpoint_lower_bound=5664 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.784962Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=95
2026-09-12T14:22:07.786124Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=96
2026-09-12T14:22:07.786776Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=10 tile=946 row_words=132 horizon=5741
2026-09-12T14:22:07.787232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=97
2026-09-12T14:22:07.787925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=7
2026-09-12T14:22:07.788311Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=98
2026-09-12T14:22:07.789373Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=99
2026-09-12T14:22:07.790453Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=100
2026-09-12T14:22:07.791501Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=101
2026-09-12T14:22:07.792474Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=7 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.792495Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=7 initial_horizon=4007 selected_horizon=4007 endpoint_lower_bound=3936 lower_bound_gap=71 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.792550Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=102
2026-09-12T14:22:07.793602Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=103
2026-09-12T14:22:07.794690Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=104
2026-09-12T14:22:07.795794Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=105
2026-09-12T14:22:07.796897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=106
2026-09-12T14:22:07.797655Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=7 tile=875 row_words=88 horizon=4007
2026-09-12T14:22:07.797990Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=107
2026-09-12T14:22:07.799042Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=108
2026-09-12T14:22:07.800150Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=109
2026-09-12T14:22:07.801305Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=110
2026-09-12T14:22:07.802387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=111
2026-09-12T14:22:07.803355Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=12
2026-09-12T14:22:07.803477Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=112
2026-09-12T14:22:07.804536Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=113
2026-09-12T14:22:07.805624Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=114
2026-09-12T14:22:07.806698Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=115
2026-09-12T14:22:07.806828Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=4
2026-09-12T14:22:07.807774Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=116
2026-09-12T14:22:07.808846Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=117
2026-09-12T14:22:07.809955Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=118
2026-09-12T14:22:07.810572Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=4 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.810593Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=4 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4032 lower_bound_gap=118 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.811067Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=119
2026-09-12T14:22:07.815577Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=4 tile=1267 row_words=94 horizon=4150
2026-09-12T14:22:07.819845Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=32
2026-09-12T14:22:07.824898Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=28
2026-09-12T14:22:07.831806Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=30
2026-09-12T14:22:07.832428Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=120
2026-09-12T14:22:07.833377Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=120 transfers=2207 maximum_identical_destinations=1
2026-09-12T14:22:07.833399Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=120 initial_horizon=223 selected_horizon=223 endpoint_lower_bound=112 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.835411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=120 tile=27 row_words=71 horizon=223
2026-09-12T14:22:07.841104Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=24
2026-09-12T14:22:07.850738Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=121
2026-09-12T14:22:07.850858Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=47
2026-09-12T14:22:07.851290Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=121 transfers=1471 maximum_identical_destinations=1
2026-09-12T14:22:07.851301Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=121 initial_horizon=4358 selected_horizon=4358 endpoint_lower_bound=4300 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.852570Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=121 tile=0 row_words=1476 horizon=4358
2026-09-12T14:22:07.859930Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=8
2026-09-12T14:22:07.863817Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=8 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.863834Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=8 initial_horizon=4579 selected_horizon=4579 endpoint_lower_bound=4512 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.867083Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=122
2026-09-12T14:22:07.869075Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=8 tile=1149 row_words=101 horizon=4579
2026-09-12T14:22:07.876032Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=5
2026-09-12T14:22:07.879882Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=5 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.879899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=5 initial_horizon=3571 selected_horizon=3571 endpoint_lower_bound=3456 lower_bound_gap=115 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.885009Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=5 tile=1055 row_words=82 horizon=3571
2026-09-12T14:22:07.897076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=14
2026-09-12T14:22:07.901897Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=123 transfers=1725 maximum_identical_destinations=1
2026-09-12T14:22:07.901926Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=123 initial_horizon=3601 selected_horizon=3601 endpoint_lower_bound=896 lower_bound_gap=2705 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:07.905024Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=123 tile=1297 row_words=15 horizon=3601
2026-09-12T14:22:07.905093Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=6
2026-09-12T14:22:07.910299Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=6 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:22:07.910328Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=6 initial_horizon=3437 selected_horizon=3437 endpoint_lower_bound=3360 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.918718Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=6 tile=1089 row_words=76 horizon=3437
2026-09-12T14:22:07.924947Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=25
2026-09-12T14:22:07.925354Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=125
2026-09-12T14:22:07.927182Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=124
2026-09-12T14:22:07.927946Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=124 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:22:07.927965Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=124 initial_horizon=710 selected_horizon=710 endpoint_lower_bound=608 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.929737Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=124 tile=13 row_words=25 horizon=710
2026-09-12T14:22:07.942080Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=21
2026-09-12T14:22:07.943641Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=126
2026-09-12T14:22:07.948429Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=22
2026-09-12T14:22:07.953716Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=48
2026-09-12T14:22:07.959582Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=26
2026-09-12T14:22:07.965105Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=49
2026-09-12T14:22:07.994756Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=43
2026-09-12T14:22:07.995665Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=43 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:07.995679Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=43 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:07.997588Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=43 tile=547 row_words=72 horizon=7200
2026-09-12T14:22:08.003195Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=39
2026-09-12T14:22:08.005020Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=39 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.005043Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=39 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.008729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=39 tile=502 row_words=67 horizon=7200
2026-09-12T14:22:08.012233Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=58
2026-09-12T14:22:08.012842Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=41
2026-09-12T14:22:08.013921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=55
2026-09-12T14:22:08.015059Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=41 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.015088Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=41 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.019992Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=41 tile=382 row_words=72 horizon=7200
2026-09-12T14:22:08.021415Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=53
2026-09-12T14:22:08.024086Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=55 transfers=2160 maximum_identical_destinations=1
2026-09-12T14:22:08.024107Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=55 initial_horizon=18627 selected_horizon=18627 endpoint_lower_bound=18432 lower_bound_gap=195 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.024895Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=44
2026-09-12T14:22:08.026145Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=44 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.026168Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=44 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.028838Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=44 tile=269 row_words=72 horizon=7201
2026-09-12T14:22:08.029704Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=55 tile=488 row_words=54 horizon=18627
2026-09-12T14:22:08.037453Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=40
2026-09-12T14:22:08.041716Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=40 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.041855Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=40 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.046345Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=40 tile=510 row_words=71 horizon=7200
2026-09-12T14:22:08.047490Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=45
2026-09-12T14:22:08.049629Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=45 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.049667Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=45 initial_horizon=7196 selected_horizon=7196 endpoint_lower_bound=7104 lower_bound_gap=92 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.050314Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=59
2026-09-12T14:22:08.053483Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=45 tile=574 row_words=72 horizon=7196
2026-09-12T14:22:08.063132Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=42
2026-09-12T14:22:08.064096Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=60
2026-09-12T14:22:08.064993Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=42 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.065020Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=42 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.069810Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=42 tile=248 row_words=71 horizon=7200
2026-09-12T14:22:08.103256Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=62
2026-09-12T14:22:08.105904Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=62 transfers=8580 maximum_identical_destinations=1
2026-09-12T14:22:08.105919Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=62 initial_horizon=9578 selected_horizon=9578 endpoint_lower_bound=7104 lower_bound_gap=2474 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.111161Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=62 tile=495 row_words=42 horizon=9578
2026-09-12T14:22:08.125893Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=79
2026-09-12T14:22:08.137934Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=80
2026-09-12T14:22:08.141698Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=81
2026-09-12T14:22:08.152093Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=87
2026-09-12T14:22:08.153454Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=88
2026-09-12T14:22:08.153574Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=37
2026-09-12T14:22:08.154653Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=89
2026-09-12T14:22:08.154733Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=37 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.154752Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=37 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.155875Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=90
2026-09-12T14:22:08.157087Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=91
2026-09-12T14:22:08.157570Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=37 tile=622 row_words=66 horizon=7202
2026-09-12T14:22:08.158184Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=82
2026-09-12T14:22:08.158282Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=92
2026-09-12T14:22:08.159448Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=93
2026-09-12T14:22:08.160619Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=94
2026-09-12T14:22:08.162656Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=75
2026-09-12T14:22:08.164591Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=85
2026-09-12T14:22:08.165718Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=38
2026-09-12T14:22:08.165793Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=86
2026-09-12T14:22:08.167016Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=38 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.167034Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=38 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.168849Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=35
2026-09-12T14:22:08.169881Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=38 tile=486 row_words=67 horizon=7201
2026-09-12T14:22:08.171307Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=35 transfers=6672 maximum_identical_destinations=1
2026-09-12T14:22:08.171325Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=35 initial_horizon=7208 selected_horizon=7208 endpoint_lower_bound=7104 lower_bound_gap=104 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.171684Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=76
2026-09-12T14:22:08.175534Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=35 tile=440 row_words=75 horizon=7208
2026-09-12T14:22:08.178473Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=67
2026-09-12T14:22:08.178938Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=67 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:22:08.178953Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=67 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.180171Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=67 tile=13 row_words=23 horizon=646
2026-09-12T14:22:08.185236Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=83
2026-09-12T14:22:08.186271Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=69
2026-09-12T14:22:08.190731Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=68
2026-09-12T14:22:08.190867Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=84 transfers=1438 maximum_identical_destinations=1
2026-09-12T14:22:08.190892Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=84 initial_horizon=2372 selected_horizon=2372 endpoint_lower_bound=896 lower_bound_gap=1476 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:08.191403Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=77 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:22:08.191421Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=77 initial_horizon=1175 selected_horizon=1175 endpoint_lower_bound=256 lower_bound_gap=919 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:08.192251Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=84 tile=871 row_words=10 horizon=2372
2026-09-12T14:22:08.192874Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=77 tile=1252 row_words=9 horizon=1175
2026-09-12T14:22:08.194580Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=56
2026-09-12T14:22:08.199793Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=78
2026-09-12T14:22:08.200297Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=78 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:22:08.200310Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=78 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.201419Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=78 tile=13 row_words=23 horizon=646
2026-09-12T14:22:08.202741Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=56 transfers=17040 maximum_identical_destinations=1
2026-09-12T14:22:08.202760Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=56 initial_horizon=9228 selected_horizon=9228 endpoint_lower_bound=7296 lower_bound_gap=1932 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.204039Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=73
2026-09-12T14:22:08.205960Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=74
2026-09-12T14:22:08.215092Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=65
2026-09-12T14:22:08.220043Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=66 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:22:08.220076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=66 initial_horizon=1175 selected_horizon=1175 endpoint_lower_bound=256 lower_bound_gap=919 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:08.221762Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=66 tile=1252 row_words=9 horizon=1175
2026-09-12T14:22:08.222835Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=56 tile=1435 row_words=74 horizon=9228
2026-09-12T14:22:08.232387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=64
2026-09-12T14:22:08.242983Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=36
2026-09-12T14:22:08.244543Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=36 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:22:08.244558Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=36 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.246390Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=36 tile=318 row_words=67 horizon=7202
2026-09-12T14:22:08.266347Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=72
2026-09-12T14:22:08.267068Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=72 transfers=1440 maximum_identical_destinations=1
2026-09-12T14:22:08.267087Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=72 initial_horizon=448 selected_horizon=448 endpoint_lower_bound=360 lower_bound_gap=88 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.268849Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=72 tile=29 row_words=51 horizon=448
2026-09-12T14:22:08.307581Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=33
2026-09-12T14:22:08.319367Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=33 transfers=23312 maximum_identical_destinations=1
2026-09-12T14:22:08.319388Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=33 initial_horizon=2781 selected_horizon=2781 endpoint_lower_bound=1152 lower_bound_gap=1629 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.331765Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=33 tile=209 row_words=140 horizon=2781
2026-09-12T14:22:08.486649Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=71
2026-09-12T14:22:08.496501Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=71 transfers=23040 maximum_identical_destinations=1
2026-09-12T14:22:08.496524Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=71 initial_horizon=2415 selected_horizon=2415 endpoint_lower_bound=2304 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.510049Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=71 tile=185 row_words=107 horizon=2415
2026-09-12T14:22:08.523806Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=51
2026-09-12T14:22:08.544058Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=51 transfers=41964 maximum_identical_destinations=1
2026-09-12T14:22:08.544077Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=51 initial_horizon=6348 selected_horizon=6348 endpoint_lower_bound=5120 lower_bound_gap=1228 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:08.574101Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=51 tile=307 row_words=127 horizon=6348
2026-09-12T14:22:09.388674Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=57
2026-09-12T14:22:09.413064Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=11
2026-09-12T14:22:09.419827Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=57 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:22:09.419846Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=57 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:09.464536Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=11 transfers=104868 maximum_identical_destinations=1
2026-09-12T14:22:09.464565Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=11 initial_horizon=1396 selected_horizon=1396 endpoint_lower_bound=1152 lower_bound_gap=244 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:09.469485Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=57 tile=173 row_words=481 horizon=1440
2026-09-12T14:22:09.527466Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=11 tile=572 row_words=350 horizon=1396
2026-09-12T14:22:10.055391Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=46
2026-09-12T14:22:10.103872Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=46 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:22:10.103899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=46 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:10.180480Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=46 tile=173 row_words=481 horizon=1440
2026-09-12T14:22:10.942751Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=63
2026-09-12T14:22:11.015485Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=63 transfers=209796 maximum_identical_destinations=1
2026-09-12T14:22:11.015512Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=63 initial_horizon=2759 selected_horizon=2759 endpoint_lower_bound=2304 lower_bound_gap=455 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:11.156310Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=63 tile=58 row_words=929 horizon=2759
2026-09-12T14:22:27.068591Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=34 candidates=52488 ordinary_horizon=11922 paired_horizon=52613 use_paired=false
2026-09-12T14:22:27.336245Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=34 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:22:27.336291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=34 initial_horizon=11922 selected_horizon=11922 endpoint_lower_bound=5856 lower_bound_gap=6066 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:27.475930Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=34 tile=556 row_words=1151 horizon=11922
2026-09-12T14:22:30.619839Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=70
2026-09-12T14:22:30.696348Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=70 transfers=139808 maximum_identical_destinations=1
2026-09-12T14:22:30.696388Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=70 initial_horizon=13086 selected_horizon=13086 endpoint_lower_bound=8164 lower_bound_gap=4922 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:30.810544Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=70 tile=150 row_words=2143 horizon=13086
2026-09-12T14:22:37.701394Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=52
2026-09-12T14:22:37.894353Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=52 transfers=391902 maximum_identical_destinations=1
2026-09-12T14:22:37.894387Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=52 initial_horizon=4788 selected_horizon=4788 endpoint_lower_bound=4304 lower_bound_gap=484 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:38.280456Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=52 tile=446 row_words=1095 horizon=4788
2026-09-12T14:22:43.636958Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=61 candidates=52488 ordinary_horizon=27604 paired_horizon=92888 use_paired=false
2026-09-12T14:22:44.085037Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=61 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:22:44.085076Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=61 initial_horizon=27604 selected_horizon=27604 endpoint_lower_bound=11712 lower_bound_gap=15892 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:22:44.241493Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=61 tile=70 row_words=2066 horizon=27604
2026-09-12T14:22:46.517185Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=54
2026-09-12T14:22:46.845788Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=54 transfers=196830 maximum_identical_destinations=1
2026-09-12T14:22:46.845836Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=54 initial_horizon=8729 selected_horizon=8729 endpoint_lower_bound=7296 lower_bound_gap=1433 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:47.315824Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=54 tile=105 row_words=2421 horizon=8729
2026-09-12T14:22:56.123107Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=0
2026-09-12T14:22:56.306521Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=0 transfers=27702 maximum_identical_destinations=1
2026-09-12T14:22:56.306558Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=0 initial_horizon=9037 selected_horizon=9037 endpoint_lower_bound=3904 lower_bound_gap=5133 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:22:56.443729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=0 tile=565 row_words=1221 horizon=9037
2026-09-12T14:23:05.260623Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=16 candidates=52488 ordinary_horizon=27812 paired_horizon=137359 use_paired=false
2026-09-12T14:23:05.892262Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=16 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:23:05.892314Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=16 initial_horizon=27812 selected_horizon=27812 endpoint_lower_bound=17568 lower_bound_gap=10244 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:23:06.128109Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=16 tile=70 row_words=3004 horizon=27812
2026-09-12T14:24:00.721882Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: compared ordinary and paired exchange schedules phase=50 candidates=52488 ordinary_horizon=25386 paired_horizon=158889 use_paired=false
2026-09-12T14:24:01.784172Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=50 transfers=62172 maximum_identical_destinations=1
2026-09-12T14:24:01.784228Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=50 initial_horizon=25386 selected_horizon=25386 endpoint_lower_bound=23424 lower_bound_gap=1962 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:24:02.157435Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=50 tile=649 row_words=4448 horizon=25386
2026-09-12T14:24:06.876704Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=20
2026-09-12T14:24:06.961010Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=20 transfers=163088 maximum_identical_destinations=1
2026-09-12T14:24:06.961050Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=20 initial_horizon=5081 selected_horizon=5081 endpoint_lower_bound=3456 lower_bound_gap=1625 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:07.059497Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: reused exchange optimization after validating relocated rows phase=18
2026-09-12T14:24:07.187024Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=20 tile=605 row_words=749 horizon=5081
2026-09-12T14:24:07.206942Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: prepared large physical exchange phase phase=18 transfers=314620 maximum_identical_destinations=1
2026-09-12T14:24:07.206978Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: optimized physical exchange schedule phase=18 initial_horizon=3970 selected_horizon=3970 endpoint_lower_bound=3456 lower_bound_gap=514 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:07.475258Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: finished large physical exchange phase phase=18 tile=291 row_words=1261 horizon=3970
2026-09-12T14:24:07.532729Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="lower_exchanges"}: package build phase finished phase="lower_exchanges" elapsed_ms=119870 success=true
2026-09-12T14:24:26.908919Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=95
2026-09-12T14:24:26.909641Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=87
2026-09-12T14:24:26.909648Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=119
2026-09-12T14:24:26.910068Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=107
2026-09-12T14:24:26.910106Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=109
2026-09-12T14:24:26.910373Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=103
2026-09-12T14:24:26.910693Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=96
2026-09-12T14:24:26.911631Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=111
2026-09-12T14:24:26.911931Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=88
2026-09-12T14:24:26.912389Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=97
2026-09-12T14:24:26.912425Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=110
2026-09-12T14:24:26.912543Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=108
2026-09-12T14:24:26.912550Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=115
2026-09-12T14:24:26.912708Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=89
2026-09-12T14:24:26.913065Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=104
2026-09-12T14:24:26.913083Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=113
2026-09-12T14:24:26.913475Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=90
2026-09-12T14:24:26.913695Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=98
2026-09-12T14:24:26.913821Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=112
2026-09-12T14:24:26.913839Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=91
2026-09-12T14:24:26.914689Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=105
2026-09-12T14:24:26.914792Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=116
2026-09-12T14:24:26.914821Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=99
2026-09-12T14:24:26.915068Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=92
2026-09-12T14:24:26.915925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=100
2026-09-12T14:24:26.915997Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=114
2026-09-12T14:24:26.916163Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=106
2026-09-12T14:24:26.916347Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=93
2026-09-12T14:24:26.916640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=117
2026-09-12T14:24:26.917004Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=101
2026-09-12T14:24:26.917909Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=15
2026-09-12T14:24:26.918074Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=79
2026-09-12T14:24:26.918153Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=102
2026-09-12T14:24:26.918303Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=118
2026-09-12T14:24:26.927649Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=80
2026-09-12T14:24:26.928411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=120
2026-09-12T14:24:26.929170Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=120 transfers=2207 maximum_identical_destinations=1
2026-09-12T14:24:26.929181Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=120 initial_horizon=223 selected_horizon=223 endpoint_lower_bound=112 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.930641Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=81
2026-09-12T14:24:26.930854Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=120 tile=27 row_words=71 horizon=223
2026-09-12T14:24:26.940975Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=121
2026-09-12T14:24:26.941361Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=121 transfers=1471 maximum_identical_destinations=1
2026-09-12T14:24:26.941373Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=121 initial_horizon=4358 selected_horizon=4358 endpoint_lower_bound=4300 lower_bound_gap=58 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.942248Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=121 tile=0 row_words=1476 horizon=4358
2026-09-12T14:24:26.944352Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=82
2026-09-12T14:24:26.945488Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=47
2026-09-12T14:24:26.952220Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=122
2026-09-12T14:24:26.955982Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=3
2026-09-12T14:24:26.958784Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=3 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:26.958798Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=3 initial_horizon=4720 selected_horizon=4720 endpoint_lower_bound=4608 lower_bound_gap=112 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.962453Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=3 tile=1247 row_words=106 horizon=4720
2026-09-12T14:24:26.964530Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=83
2026-09-12T14:24:26.965036Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=123
2026-09-12T14:24:26.965497Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=123 transfers=1725 maximum_identical_destinations=1
2026-09-12T14:24:26.965507Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=123 initial_horizon=3601 selected_horizon=3601 endpoint_lower_bound=896 lower_bound_gap=2705 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.966978Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=123 tile=1297 row_words=15 horizon=3601
2026-09-12T14:24:26.975873Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=124
2026-09-12T14:24:26.976187Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=124 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:24:26.976194Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=124 initial_horizon=710 selected_horizon=710 endpoint_lower_bound=608 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.976500Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=21
2026-09-12T14:24:26.976635Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=1
2026-09-12T14:24:26.977014Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=124 tile=13 row_words=25 horizon=710
2026-09-12T14:24:26.977694Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=84
2026-09-12T14:24:26.978081Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=84 transfers=1438 maximum_identical_destinations=1
2026-09-12T14:24:26.978090Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=84 initial_horizon=2372 selected_horizon=2372 endpoint_lower_bound=896 lower_bound_gap=1476 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.978687Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=17
2026-09-12T14:24:26.979212Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=1 transfers=1368 maximum_identical_destinations=1
2026-09-12T14:24:26.979232Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=1 initial_horizon=1718 selected_horizon=1718 endpoint_lower_bound=768 lower_bound_gap=950 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.979919Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=84 tile=871 row_words=10 horizon=2372
2026-09-12T14:24:26.981346Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=17 transfers=5710 maximum_identical_destinations=1
2026-09-12T14:24:26.981364Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=17 initial_horizon=9580 selected_horizon=9580 endpoint_lower_bound=9472 lower_bound_gap=108 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:26.982454Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=85
2026-09-12T14:24:26.983218Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=125
2026-09-12T14:24:26.983291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=86
2026-09-12T14:24:26.984341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=1 tile=1166 row_words=18 horizon=1718
2026-09-12T14:24:26.987608Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=17 tile=1141 row_words=34 horizon=9580
2026-09-12T14:24:26.987746Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=27
2026-09-12T14:24:26.990020Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=126
2026-09-12T14:24:26.995604Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=19
2026-09-12T14:24:27.000790Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=67
2026-09-12T14:24:27.001138Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=67 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:24:27.001147Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=67 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.002234Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=67 tile=13 row_words=23 horizon=646
2026-09-12T14:24:27.004445Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=4
2026-09-12T14:24:27.007125Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=4 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.007140Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=4 initial_horizon=4150 selected_horizon=4150 endpoint_lower_bound=4032 lower_bound_gap=118 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.009446Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=68
2026-09-12T14:24:27.010835Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=4 tile=1267 row_words=94 horizon=4150
2026-09-12T14:24:27.017908Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=69
2026-09-12T14:24:27.021000Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=31
2026-09-12T14:24:27.025609Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=23
2026-09-12T14:24:27.031008Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=25
2026-09-12T14:24:27.031434Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=7
2026-09-12T14:24:27.035880Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=7 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.035900Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=7 initial_horizon=4007 selected_horizon=4007 endpoint_lower_bound=3936 lower_bound_gap=71 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.038505Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=22
2026-09-12T14:24:27.040997Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=7 tile=875 row_words=88 horizon=4007
2026-09-12T14:24:27.050642Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=2
2026-09-12T14:24:27.056342Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=2 transfers=9792 maximum_identical_destinations=1
2026-09-12T14:24:27.056369Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=2 initial_horizon=5395 selected_horizon=5395 endpoint_lower_bound=5280 lower_bound_gap=115 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.062179Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=5
2026-09-12T14:24:27.062995Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=2 tile=981 row_words=124 horizon=5395
2026-09-12T14:24:27.066446Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=5 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.066475Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=5 initial_horizon=3571 selected_horizon=3571 endpoint_lower_bound=3456 lower_bound_gap=115 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.072248Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=5 tile=1055 row_words=82 horizon=3571
2026-09-12T14:24:27.084469Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=28
2026-09-12T14:24:27.094920Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=26
2026-09-12T14:24:27.106010Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=8
2026-09-12T14:24:27.109989Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=8 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.110008Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=8 initial_horizon=4579 selected_horizon=4579 endpoint_lower_bound=4512 lower_bound_gap=67 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.115572Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=8 tile=1149 row_words=101 horizon=4579
2026-09-12T14:24:27.120366Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=32
2026-09-12T14:24:27.121820Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=24
2026-09-12T14:24:27.135100Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=48
2026-09-12T14:24:27.139705Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=6
2026-09-12T14:24:27.143742Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=6 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.143763Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=6 initial_horizon=3437 selected_horizon=3437 endpoint_lower_bound=3360 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.146368Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=39
2026-09-12T14:24:27.147462Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=39 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.147476Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=39 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.148355Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=30
2026-09-12T14:24:27.148856Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=6 tile=1089 row_words=76 horizon=3437
2026-09-12T14:24:27.149694Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=39 tile=502 row_words=67 horizon=7200
2026-09-12T14:24:27.157580Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=49
2026-09-12T14:24:27.170097Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=40
2026-09-12T14:24:27.170531Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=13
2026-09-12T14:24:27.171150Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=40 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.171162Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=40 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.171297Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=13 transfers=2193 maximum_identical_destinations=1
2026-09-12T14:24:27.171316Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=13 initial_horizon=702 selected_horizon=702 endpoint_lower_bound=576 lower_bound_gap=126 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.172755Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=43
2026-09-12T14:24:27.173424Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=40 tile=510 row_words=71 horizon=7200
2026-09-12T14:24:27.173607Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=13 tile=622 row_words=15 horizon=702
2026-09-12T14:24:27.173614Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=43 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.173626Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=43 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.175397Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=43 tile=547 row_words=72 horizon=7200
2026-09-12T14:24:27.178421Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=29
2026-09-12T14:24:27.180138Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=9
2026-09-12T14:24:27.184581Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=9 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.184598Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=9 initial_horizon=5150 selected_horizon=5150 endpoint_lower_bound=5088 lower_bound_gap=62 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.190624Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=9 tile=1172 row_words=112 horizon=5150
2026-09-12T14:24:27.193558Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=41
2026-09-12T14:24:27.193847Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=94
2026-09-12T14:24:27.193939Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=44
2026-09-12T14:24:27.194549Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=41 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.194562Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=41 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.194790Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=44 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.194800Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=44 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.196524Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=44 tile=269 row_words=72 horizon=7201
2026-09-12T14:24:27.196632Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=41 tile=382 row_words=72 horizon=7200
2026-09-12T14:24:27.199279Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=10
2026-09-12T14:24:27.204131Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=10 transfers=9216 maximum_identical_destinations=1
2026-09-12T14:24:27.204149Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=10 initial_horizon=5741 selected_horizon=5741 endpoint_lower_bound=5664 lower_bound_gap=77 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.210118Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=10 tile=946 row_words=132 horizon=5741
2026-09-12T14:24:27.215012Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=45
2026-09-12T14:24:27.215884Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=45 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.215896Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=45 initial_horizon=7196 selected_horizon=7196 endpoint_lower_bound=7104 lower_bound_gap=92 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.217682Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=45 tile=574 row_words=72 horizon=7196
2026-09-12T14:24:27.218994Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=71
2026-09-12T14:24:27.228198Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=12
2026-09-12T14:24:27.231824Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=71 transfers=23040 maximum_identical_destinations=1
2026-09-12T14:24:27.231844Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=71 initial_horizon=2415 selected_horizon=2415 endpoint_lower_bound=2304 lower_bound_gap=111 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.238134Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=35
2026-09-12T14:24:27.240299Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=35 transfers=6672 maximum_identical_destinations=1
2026-09-12T14:24:27.240313Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=35 initial_horizon=7208 selected_horizon=7208 endpoint_lower_bound=7104 lower_bound_gap=104 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.241702Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=37
2026-09-12T14:24:27.243021Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=37 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.243045Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=37 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.243737Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=35 tile=440 row_words=75 horizon=7208
2026-09-12T14:24:27.245305Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=71 tile=185 row_words=107 horizon=2415
2026-09-12T14:24:27.245910Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=37 tile=622 row_words=66 horizon=7202
2026-09-12T14:24:27.263404Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=36
2026-09-12T14:24:27.264341Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=72
2026-09-12T14:24:27.264382Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=36 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.264395Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=36 initial_horizon=7202 selected_horizon=7202 endpoint_lower_bound=7104 lower_bound_gap=98 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.264887Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=72 transfers=1440 maximum_identical_destinations=1
2026-09-12T14:24:27.264906Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=72 initial_horizon=448 selected_horizon=448 endpoint_lower_bound=360 lower_bound_gap=88 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.266074Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=72 tile=29 row_words=51 horizon=448
2026-09-12T14:24:27.266401Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=36 tile=318 row_words=67 horizon=7202
2026-09-12T14:24:27.268829Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=73
2026-09-12T14:24:27.270839Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=74
2026-09-12T14:24:27.272000Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=75
2026-09-12T14:24:27.273640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=38
2026-09-12T14:24:27.274925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=38 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:27.274940Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=38 initial_horizon=7201 selected_horizon=7201 endpoint_lower_bound=7104 lower_bound_gap=97 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.277723Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=38 tile=486 row_words=67 horizon=7201
2026-09-12T14:24:27.283925Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=76
2026-09-12T14:24:27.307282Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=77
2026-09-12T14:24:27.307976Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=77 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:24:27.307998Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=77 initial_horizon=1175 selected_horizon=1175 endpoint_lower_bound=256 lower_bound_gap=919 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.310484Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=77 tile=1252 row_words=9 horizon=1175
2026-09-12T14:24:27.315415Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=78
2026-09-12T14:24:27.315902Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=78 transfers=1224 maximum_identical_destinations=1
2026-09-12T14:24:27.315913Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=78 initial_horizon=646 selected_horizon=646 endpoint_lower_bound=544 lower_bound_gap=102 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.317188Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=78 tile=13 row_words=23 horizon=646
2026-09-12T14:24:27.330386Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=14
2026-09-12T14:24:27.331337Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=55
2026-09-12T14:24:27.338641Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=55 transfers=2160 maximum_identical_destinations=1
2026-09-12T14:24:27.338657Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=55 initial_horizon=18627 selected_horizon=18627 endpoint_lower_bound=18432 lower_bound_gap=195 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.342913Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=55 tile=488 row_words=54 horizon=18627
2026-09-12T14:24:27.351748Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=60
2026-09-12T14:24:27.353123Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=53
2026-09-12T14:24:27.355506Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=65
2026-09-12T14:24:27.365556Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=58
2026-09-12T14:24:27.369135Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=66
2026-09-12T14:24:27.369526Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=66 transfers=1294 maximum_identical_destinations=1
2026-09-12T14:24:27.369537Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=66 initial_horizon=1175 selected_horizon=1175 endpoint_lower_bound=256 lower_bound_gap=919 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.370877Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=66 tile=1252 row_words=9 horizon=1175
2026-09-12T14:24:27.370986Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=59
2026-09-12T14:24:27.389874Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=64
2026-09-12T14:24:27.475878Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=62
2026-09-12T14:24:27.479997Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=62 transfers=8580 maximum_identical_destinations=1
2026-09-12T14:24:27.480026Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=62 initial_horizon=9578 selected_horizon=9578 endpoint_lower_bound=7104 lower_bound_gap=2474 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.487790Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=62 tile=495 row_words=42 horizon=9578
2026-09-12T14:24:27.576180Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=56
2026-09-12T14:24:27.583640Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=56 transfers=17040 maximum_identical_destinations=1
2026-09-12T14:24:27.583663Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=56 initial_horizon=9228 selected_horizon=9228 endpoint_lower_bound=7296 lower_bound_gap=1932 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.597832Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=56 tile=1435 row_words=74 horizon=9228
2026-09-12T14:24:27.649254Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=33
2026-09-12T14:24:27.653455Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=51
2026-09-12T14:24:27.662323Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=33 transfers=23312 maximum_identical_destinations=1
2026-09-12T14:24:27.662346Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=33 initial_horizon=2781 selected_horizon=2781 endpoint_lower_bound=1152 lower_bound_gap=1629 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.668181Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=51 transfers=41964 maximum_identical_destinations=1
2026-09-12T14:24:27.668225Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=51 initial_horizon=6348 selected_horizon=6348 endpoint_lower_bound=5120 lower_bound_gap=1228 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:27.677121Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=33 tile=209 row_words=140 horizon=2781
2026-09-12T14:24:27.693469Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=51 tile=307 row_words=127 horizon=6348
2026-09-12T14:24:28.379454Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=11
2026-09-12T14:24:28.435758Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=11 transfers=104868 maximum_identical_destinations=1
2026-09-12T14:24:28.435786Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=11 initial_horizon=1396 selected_horizon=1396 endpoint_lower_bound=1152 lower_bound_gap=244 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:28.507553Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=11 tile=572 row_words=350 horizon=1396
2026-09-12T14:24:29.482434Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=57
2026-09-12T14:24:29.541291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=57 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:24:29.541320Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=57 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:29.600259Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=46
2026-09-12T14:24:29.635372Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=57 tile=173 row_words=481 horizon=1440
2026-09-12T14:24:29.672363Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=46 transfers=104892 maximum_identical_destinations=1
2026-09-12T14:24:29.672407Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=46 initial_horizon=1440 selected_horizon=1440 endpoint_lower_bound=1152 lower_bound_gap=288 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:29.765630Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=46 tile=173 row_words=481 horizon=1440
2026-09-12T14:24:29.812267Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=42
2026-09-12T14:24:29.814904Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=42 transfers=3456 maximum_identical_destinations=1
2026-09-12T14:24:29.814921Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=42 initial_horizon=7200 selected_horizon=7200 endpoint_lower_bound=7104 lower_bound_gap=96 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:29.817923Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=42 tile=248 row_words=71 horizon=7200
2026-09-12T14:24:31.548063Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=63
2026-09-12T14:24:31.675707Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=63 transfers=209796 maximum_identical_destinations=1
2026-09-12T14:24:31.675752Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=63 initial_horizon=2759 selected_horizon=2759 endpoint_lower_bound=2304 lower_bound_gap=455 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:31.954440Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=63 tile=58 row_words=929 horizon=2759
2026-09-12T14:24:34.356360Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=0
2026-09-12T14:24:34.504995Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=0 transfers=27702 maximum_identical_destinations=1
2026-09-12T14:24:34.505037Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=0 initial_horizon=9037 selected_horizon=9037 endpoint_lower_bound=3904 lower_bound_gap=5133 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:34.575251Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=52
2026-09-12T14:24:34.594513Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=0 tile=565 row_words=1221 horizon=9037
2026-09-12T14:24:34.873332Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=52 transfers=391902 maximum_identical_destinations=1
2026-09-12T14:24:34.873373Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=52 initial_horizon=4788 selected_horizon=4788 endpoint_lower_bound=4304 lower_bound_gap=484 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:35.249425Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=52 tile=446 row_words=1095 horizon=4788
2026-09-12T14:24:43.281899Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=54
2026-09-12T14:24:43.619451Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=54 transfers=196830 maximum_identical_destinations=1
2026-09-12T14:24:43.619488Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=54 initial_horizon=8729 selected_horizon=8729 endpoint_lower_bound=7296 lower_bound_gap=1433 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:24:44.095014Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=54 tile=105 row_words=2421 horizon=8729
2026-09-12T14:24:48.327622Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: compared ordinary and paired exchange schedules phase=34 candidates=52488 ordinary_horizon=10334 paired_horizon=52613 use_paired=false
2026-09-12T14:24:48.612096Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=34 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:24:48.612146Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=34 initial_horizon=10334 selected_horizon=10334 endpoint_lower_bound=5856 lower_bound_gap=4478 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:24:48.753623Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=34 tile=556 row_words=1158 horizon=10334
2026-09-12T14:24:58.207552Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: compared ordinary and paired exchange schedules phase=61 candidates=52488 ordinary_horizon=16284 paired_horizon=90601 use_paired=false
2026-09-12T14:24:58.720411Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=61 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:24:58.720459Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=61 initial_horizon=16284 selected_horizon=16284 endpoint_lower_bound=11712 lower_bound_gap=4572 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:24:58.951264Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=61 tile=289 row_words=2069 horizon=16284
2026-09-12T14:25:02.592472Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=70
2026-09-12T14:25:02.683816Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=70 transfers=139808 maximum_identical_destinations=1
2026-09-12T14:25:02.683863Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=70 initial_horizon=13086 selected_horizon=13086 endpoint_lower_bound=8164 lower_bound_gap=4922 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:25:02.819516Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=70 tile=150 row_words=2143 horizon=13086
2026-09-12T14:25:03.608613Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=20
2026-09-12T14:25:03.705109Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=20 transfers=163088 maximum_identical_destinations=1
2026-09-12T14:25:03.705151Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=20 initial_horizon=5081 selected_horizon=5081 endpoint_lower_bound=3456 lower_bound_gap=1625 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:25:03.910627Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=20 tile=605 row_words=749 horizon=5081
2026-09-12T14:25:04.483511Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: reused exchange optimization after validating relocated rows phase=18
2026-09-12T14:25:04.627244Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=18 transfers=314620 maximum_identical_destinations=1
2026-09-12T14:25:04.627275Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=18 initial_horizon=3970 selected_horizon=3970 endpoint_lower_bound=3456 lower_bound_gap=514 selected_kind="reused" neighborhood_improvements=0
2026-09-12T14:25:04.908483Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=18 tile=291 row_words=1261 horizon=3970
2026-09-12T14:25:27.813544Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: compared ordinary and paired exchange schedules phase=16 candidates=52488 ordinary_horizon=21844 paired_horizon=135202 use_paired=false
2026-09-12T14:25:28.699101Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=16 transfers=54216 maximum_identical_destinations=1
2026-09-12T14:25:28.699148Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=16 initial_horizon=21844 selected_horizon=21844 endpoint_lower_bound=17568 lower_bound_gap=4276 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:25:29.031455Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=16 tile=481 row_words=3004 horizon=21844
2026-09-12T14:26:03.271906Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: compared ordinary and paired exchange schedules phase=50 candidates=52488 ordinary_horizon=25246 paired_horizon=158889 use_paired=false
2026-09-12T14:26:04.373122Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: prepared large physical exchange phase phase=50 transfers=62172 maximum_identical_destinations=1
2026-09-12T14:26:04.373183Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: optimized physical exchange schedule phase=50 initial_horizon=25246 selected_horizon=25246 endpoint_lower_bound=23424 lower_bound_gap=1822 selected_kind="balanced-compact-streams" neighborhood_improvements=0
2026-09-12T14:26:04.738077Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: finished large physical exchange phase phase=50 tile=722 row_words=4461 horizon=25246
2026-09-12T14:26:06.853633Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}:ipu_codegen.package.phase{phase="optimize_exchange_placement"}: evaluated exchange placement candidate offset=28672 baseline_score=200289199488 score=127856649600 baseline_cycles=448202 candidate_cycles=429186 row_bytes=99228 row_capacity=114624 accepted=true
2026-09-12T14:26:08.165999Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}: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=120633 success=true
2026-09-12T14:26:08.277901Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: costed final placed program final_cycles=1389300 final_exchange=505386
2026-09-12T14:26:10.485394Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}: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=351 success=true
2026-09-12T14:26:10.657291Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}: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=171 success=true
2026-09-12T14:26:11.183522Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}: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=451 success=true
2026-09-12T14:26:11.589763Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: validated canonical baseline cycles=1389300
2026-09-12T14:26:12.205007Z  INFO ipu_codegen.package.build{tile_count=1472 operations=45}:ipu_codegen.package.phase{phase="plan_package"}: package build phase finished phase="plan_package" elapsed_ms=397411 success=true
2026-09-12T14:26:12.982367Z  INFO writing application package tiles=1472
2026-09-12T14:26:13.121942Z  INFO application package written
2026-09-12T14:26:13.128631Z  INFO reading application package
2026-09-12T14:26:13.379959Z  INFO application package read tiles=1472 compiler=0.1.0
2026-09-12T14:26:13.405162Z  INFO waiting for hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-12T14:26:13.405194Z  INFO acquired hardware ownership path=artifacts/layout-sweep/device.lock
2026-09-12T14:26:13.405216Z  INFO opening IPU device path="/dev/ipu0"
2026-09-12T14:26:13.405250Z  INFO IPU device attached path=/dev/ipu0
2026-09-12T14:26:13.405256Z  INFO initializing IPU device
2026-09-12T14:26:13.413312Z  INFO IPU device initialized
2026-09-12T14:26:13.413325Z  INFO replaying device configuration register_writes=2003
2026-09-12T14:26:13.427815Z  INFO loading application tile_count=1472 final_mark=23
2026-09-12T14:26:13.707729Z  INFO application loaded and initial synchronization completed tile_count=1472
2026-09-12T14:26:14.348767Z  INFO prepared reference inputs elapsed_ms=637
2026-09-12T14:26:14.352007Z  INFO configured host reference BLAS threads=4
referencePrecision=fp32
2026-09-12T14:26:16.660414Z  INFO evaluated host reference elapsed_ms=2311
2026-09-12T14:26:16.662510Z  INFO starting host exchange session startup_mark=23
2026-09-12T14:26:16.662550Z  INFO attaching host exchange pages pages=2
2026-09-12T14:26:16.663257Z  INFO host exchange session started
2026-09-12T14:26:16.663385Z  INFO invoking streaming host exchange call call="initialize" command=0 phases=32
2026-09-12T14:26:16.681868Z  INFO invoking streaming host exchange call call="run" command=0 phases=5
referenceMinimumCosineSimilarity=0.997085087
referenceInference=1 numericalTest=PASS
referenceMaximumAbsoluteError=0.157806 numericalTest=PASS
package=artifacts/exchange-packing-20260912/direct-b2-hardware/model.ipuexe tiles=1472 hardwareTest=PASS