UDCM does not require IPoIB. It should be working for you. Can you build Open MPI with --enable-debug and run with -mca btl_base_verbose 100 and create a gist with the output.
-Nathan On Nov 01, 2016, at 07:50 AM, Sergei Hrushev <hrus...@gmail.com> wrote: I haven't worked with InfiniBand for years, but I do believe that yes: you need IPoIB enabled on your IB devices to get the RDMA CM support to work. Yes, I saw too that RDMA CM requires IP, but in my case OpenMPI reports that UD CM can't be used too. Is it also require IPoIB? Is it possible to read more about UD CM somewhere? _______________________________________________ users mailing list users@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/users
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