Ralph Castain <rhc.open...@gmail.com> writes: > If you only have one allocated PE on a node, then mpirun will > correctly tell you that it can’t launch with PE>1 as there aren’t > enough resources to meet your request. IIRC, we may have been ignoring > this under SGE and running as many procs as we wanted on an allocated > node - the SGE folks provided a patch to fix that hole.
I don't know what that refers to, but for what it's worth, there's no problem I know of with OMPI failing to fail if you try to over-subscribe under SGE (at least since v1.3). (Without the --np in my example, it will fail.) -- SGE folk
