You may wish to try running with the runtime option:
-mca mpi_leave_pinned 1
This turns on registration caching and such..
On Jun 13, 2006, at 8:01 AM, Brock Palen wrote:
> I ran a test using openmpi-1.0.2 on OSX vs mpich-1.2.6 from
> mryicom and i get lacking results from OMPI,
> at point point there is a small drop in bandwidth for both MPI
> libs, but open mpi does not recover like mpich, and further on you
> see a decreese in bandwidth for OMPI on gm.
> I have attached in png and the outputs from the test (there are
> two for OMPI )
> Brock Palen
> Center for Advanced Computing
> users mailing list