I just built OpenMPI-1.2.4 to work on my system (IB, OFED-1.2). When I run a job, I am getting the following message:
WARNING: There are more than one active ports on host 'w74', but the default subnet GID prefix was detected on more than one of these ports. If these ports are connected to different physical IB networks, this configuration will fail in Open MPI. This version of Open MPI requires that every physically separate IB subnet that is used between connected MPI processes must have different subnet ID values. I went to the faq to read about the message. My code does complete successfully because both nodes are connected by both meshes. My question is, how can I tell mpirun that I only want to use of of the ports? I specifically want to use either port 1 or port 2, but not bond both together. Can this be done? Thanks, Craig -- Craig Tierney (craig.tier...@noaa.gov)
