On Jul 21, 2014, at 11:50 AM, Jed Brown <[email protected]> wrote: > 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?
I don’t care
