OpenMPI does this already. We use it all the time for IB vs Gig-E.
You can change the weights, but I doubt you want to.
Also use mx if you can.
Brock Palen
www.umich.edu/~brockp
Center for Advanced Computing
bro...@umich.edu
(734)936-1985
On May 21, 2008, at 1:17 PM, Borenstein, Bernard S w
We now have a myrinet cluster along with our GIGE clusters and I was
wondering how to have openmpi select the right interconnect. We use PBS
and would like to have Openmpi select the right interconnect
automatically, depending on whether we are on the Myrinet cluster or the
Gige cluster. Any help
If everything that should be in the OMPI package data directory is in
a different location, then you can setenv OPAL_PKGDATADIR to the new
location. The two sets of files that are normally in this location
are the OMPI help files (help-*.txt) and the wrapper compiler data
files (mpi*-wrapp
Terry -
It tells us that I'm not as smart as I thought :). If you're willing to
help track this down, I'd like to try some other things that will require
a more involved patch (it'll take me a day or two to get the patch right).
Let me know if you'd be wiling to look further (hopefully only a
Hi Brian
I ran your experiment. Changing the MMAP threshold made no difference
to the memory footprint (>8GB/process out of the box, an order of
magnitude smaller with --with-memory-manager=none).
What does that tell us?
Ciao
Terry
On Tue, 2008-05-20 at 06:51 -0600, Brian Barrett wrote:
> Te
