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ABI Change Wishlist

Ken Raffenetti edited this page Jul 15, 2021 · 16 revisions

Aggregation of changes to make if/when MPICH breaks ABI compatibility with previous versions

  • Update MPI_Status struct
    • Simplify count hi/lo and canceled
  • Increase MPI_MAX_INFO_VAL
    • Allow for more information in a single info hint, e.g. for RMA optimization
  • Remove (or do not provide by default) functions removed from the MPI Standard
    • e.g. MPI_ERRHANDLER_CREATE