I am trying to set up Open MPI between a few machines on out network. Open MPI works fine locally, but I just can't get it to work on a remote node. I can ssh into the remote machine (without password) just fine, but if I try something like
mpiexec -n 2 -H node1,node2 /usr/local/mpihouse/MPIDemo
then the ssh connection just endless waiting ,no result,no error reports!!!