Re: [OMPI users] MPI on Docker

2015-10-18 Thread Gilles Gouaillardet
Peter, mpirun does fork&exec the orted daemon on the remote nodes, an then orted firm&exec the MPI app (your shell script here) the MPI app connects back to orted (1.6.5 might use tcp instead of unix sockets, but I do not recall if 127.0.0.1 is hardcoded, and if it is, what the impact of having th

[OMPI users] MPI on Docker

2015-10-18 Thread Peter Davis
Hello, I am currently trying to get MPI working using docker containers across networked virtual machines. The problem I have is that I don't seem to get any output from a dockerized MPI program (a tutorial matrix multiply program), but inspecting the nodes (docker containers) each process sits at