https://community.intel.com/t5/Intel-MPI-Library/Intel-MPI-questions/m-p/1401442#M9700 <P>Removed</P> Tue, 19 Jul 2022 06:31:12 GMT SarahVN 2022-07-19T06:31:12Z https://community.intel.com/t5/Intel-MPI-Library/Intel-MPI-questions/m-p/1156743#M6224 <P>So I've been trying to unconfuse myself about the various fabrics/transports supported by intel mpi 2018/19 as used for the `I_MPI_FABRICS` variable and related ones. I have a few questions I'm hoping someone can help with - they're all related so have put them in one thread:</P><P>1. Is there a way of getting intel mpi to output which transports/fabrics it thinks are available on a machine? Or is it just a question of trying each one with fallback disabled?</P><P>2. 2018 has a `tcp` fabric while 2019's `OFI` fabric has a `TCP` provider. Am I right in thinking these are *not*&nbsp;the same, with the former not using `libfabric` at all?</P><P>3. 2019 (only?)'s `OFI` fabric has an `RxM` provider. The other OFI providers seem tied to a specific hardware but I'm not clear if this one is, or is it something more fundamental?</P><P>4. 2018 had a `ofa` fabric which says it supports InfiniBand through OFED Verbs:</P><P>a) Am I right in thinking this is *not* the same verbs interface as is provided by the `ofi` fabric's `verbs` provider?</P><P>b) Does&nbsp;the OFA/OFED Verbs interface support anything other than InfiniBand?</P><P>Many thanks for any answers!</P> Wed, 04 Sep 2019 13:45:40 GMT https://community.intel.com/t5/Intel-MPI-Library/Intel-MPI-questions/m-p/1156743#M6224 Steve_B 2019-09-04T13:45:40Z https://community.intel.com/t5/Intel-MPI-Library/Intel-MPI-questions/m-p/1401442#M9700 <P>Removed</P> Tue, 19 Jul 2022 06:31:12 GMT https://community.intel.com/t5/Intel-MPI-Library/Intel-MPI-questions/m-p/1401442#M9700 SarahVN 2022-07-19T06:31:12Z