mpirun --mca oob_tcp_if_include ib0 --mca oob tcp ... Note that if your cluster is large and ARP tables are not fully populated, IPoIB might not be the best idea.
Cheers, Gilles Michael Di Domenico <mdidomeni...@gmail.com> wrote: >my cluster nodes are connected on 1g ethernet eth0/eth1 and via >infiniband rdma and ib0 > >my understanding is that openmpi will detect all these interfaces. >using eth0/eth1 for connection setup and use rdma for msg passing > >what would be an appropriate to command line parameters to tell >openmpi to ipoib for connection setup and rdma for message passing? > >i effectively want to ignore the 1g ethernet connections for anything >_______________________________________________ >users mailing list >users@lists.open-mpi.org >https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
