2026-09-06T17:43:30.814800Z  INFO retained operator-plan finalist finalist=0 values=11 operations=7 estimated_cycles=554130 estimated_exchange_cycles=267600 exchange_row_bytes=56280 peak_standard_bytes=150488 peak_interleaved_bytes=63488 peak_total_bytes=195544 maximum_standard_allocation_bytes=61440 active_tile_counts={12, 64} padding_group_counts={} conversion_sources=[]
2026-09-06T17:43:30.814930Z  INFO retained operator-plan finalist finalist=1 values=11 operations=7 estimated_cycles=645228 estimated_exchange_cycles=271320 exchange_row_bytes=56724 peak_standard_bytes=144788 peak_interleaved_bytes=88064 peak_total_bytes=216468 maximum_standard_allocation_bytes=55296 active_tile_counts={8, 12, 64} padding_group_counts={} conversion_sources=[]
2026-09-06T17:43:30.819378Z  INFO ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=209 success=true
2026-09-06T17:43:31.217372Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: rejected infeasible operator-plan finalist finalist=0 error=exchange lowering failed: exchange payload is not a nonempty whole number of words
2026-09-06T17:43:31.217414Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: rejected infeasible operator-plan finalist finalist=1 error=exchange lowering failed: exchange payload is not a nonempty whole number of words
2026-09-06T17:43:31.217420Z  INFO ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=397 success=false
Error: exchange lowering failed: exchange payload is not a nonempty whole number of words

Caused by:
    exchange payload is not a nonempty whole number of words