Barry Smith <[email protected]> writes: > Yes the correct PetscViewerFormat is limited in that there is only > one supported at a time. We could go the horrible bit oring of > options or we could collect multiple options instead of just one.
I think we should collect multiple options. >> Uh, MPI_Pack_external and MPI_Unpack_external? > > Ok, so maybe the finally implemented them. We don’t use this BTW > because Rajev told me (a long time ago) that MPICH doesn’t support > it. Must have been prior to MPI-2.1. Shall we test for MPI_Pack_external and use MPI-IO by default if it's available?
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