Unique to each process? Try this:
int rank; MPI_Comm_rank(MPI_COMM_WORLD, &rank); uint64_t unique = rank; To get additional unique values: int size; MPI_Comm_size(MPI_COMM_WORLD, &size); unique += size; If this isn't insufficient, please ask to question differently. There is no canonical method for this. Jeff Sent from my iPhone > On Jan 3, 2014, at 3:50 AM, MM <finjulh...@gmail.com> wrote: > > Hello, > Is there a canonical way to obtain a globally unique 64bit unsigned integer > across all mpi processes, multiple times? > > Thanks > > MM > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
