• Rob Latham's avatar
    [svn-r8503] optimization when all read accesses the same · 5eaeea29
    Rob Latham authored
    well this sure turned out to be more involved than I imagined.  We do in fact
    need to look at more than just the start and end offsets of the file domains.
    Comparing MPI datatypes (file views) among all mpi processes requires some
    work. In this approach we marshal the datatype into a serialized
    representation, hash that representation, then compare that hash among all