On Fri, Oct 24, 2008 at 11:26 PM, Eugene Loh <eugene....@sun.com> wrote: > Sangamesh B wrote: > >> I reinstalled all softwares with -O3 optimization. Following are the >> performance numbers for a 4 process job on a single node: >> >> MPICH2: 26 m 54 s >> OpenMPI: 24 m 39 s > > I'm not sure I'm following. OMPI is faster here, but is that a result of > MPICH2 slowing down? The original post at > http://www.open-mpi.org/community/lists/users/2008/10/6891.php had: > > OpenMPI - 25 m 39 s. > MPICH2 - 15 m 53 s. > > So, did MPICH2 slow down, or can one not compare these timings? No. > OpenMPI - 25 m 39 s. > MPICH2 - 15 m 53 s.
This job is run with 8 processes i.e. on 2 nodes. > OpenMPI - 25 m 39 s. > MPICH2 - 15 m 53 s. This job is run with 4 processes i.e. on 1 node > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
