John,
To disable shared memory (sm or vader in Open MPI depending on the
version), you have to remove it from the list of approved underlying
network devices. As you specifically want TCP support, I would add "--mca
btl tcp,self" to my mpirun command line. However, by default Open MPI tries
to avo
I would like to test the network latency/bandwidth of each node that I am
running on in parallel. I think the simplest way to do this would be to
have each node test itself.
My question is: How can I force all the OpenMPI TCP communication to go
through the network adapter, and not use the optimiz
