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Does Open MPI support RoCE (RDMA over Converged Ethernet)?

April 26, 2017converged Ethernet MPI rdma roce support

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Does Open MPI support RoCE (RDMA over Converged Ethernet)?

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RoCE is fully supported as of the Open MPI v1.4.4 release. For more details on how to run Open MPI over RoCE, see this FAQ entry. 4. I have an OFED-based cluster; will Open MPI work with that? Yes. OFED (OpenFabrics Enterprise Distribution) is basically the release mechanism for the OpenFabrics software packages. So OFED releases are officially tested and released versions of the OpenFabrics stacks. 5. Where do I get the OFED software from? The “Download” section of the OpenFabrics web site has links for the various OFED releases. Additionally, several InfiniBand vendors have their own releases of the OFED stack, customized for their hardware and/or support requirements. Consult with your IB vendor for more details. 6. Isn’t Open MPI included in the OFED software package? Can I install another copy of Open MPI besides the one that is included in OFED? Yes, Open MPI is included in the OFED software. And yes, you can easily install a later version of Open MPI on OFED-based clusters, even