On Mon, Oct 1, 2012 at 10:33 AM, Ralph Castain <r...@open-mpi.org> wrote: > Yes, that is the expected behavior as you describe it. > > If you want to run on hosts that are not already provided (via hostfile in > the environment or on the command line), then you need to use the "add-host" > or "add-hostfile" MPI_Info key. See "man MPI_Comm_spawn" for details. >
Neat. It works. Thanks, I just didn't quite grasp the difference. Brian
