I think so. The one who is most familiar with btl/ofi is Arm (CCed in this email).
-Nathan > On Apr 24, 2019, at 9:41 AM, Heinz, Michael William > <michael.william.he...@intel.com> wrote: > > So, > > Would it be worthwhile for us to start doing test builds now? Is the code > ready for that at this time? > >> -----Original Message----- >> From: devel [mailto:devel-boun...@lists.open-mpi.org] On Behalf Of >> Nathan Hjelm via devel >> Sent: Friday, April 12, 2019 11:19 AM >> To: Open MPI Developers <devel@lists.open-mpi.org> >> Cc: Nathan Hjelm <hje...@me.com>; Castain, Ralph H >> <ralph.h.cast...@intel.com>; Yates, Brandon <brandon.ya...@intel.com> >> Subject: Re: [OMPI devel] Intel OPA and Open MPI >> >> That is accurate. We expect to support OPA with the btl/ofi component. It >> should give much better performance than osc/pt2pt + mtl/ofi. What would >> be good for you to do on your end is verify everything works as expected >> and that the performance is on par for what you expect. >> >> -Nathan >> >>> On Apr 12, 2019, at 9:11 AM, Heinz, Michael William >> <michael.william.he...@intel.com> wrote: >>> >>> Hey guys, >>> >>> So, I’ve watched the videos, dug through the release notes, and >> participated in a few of the weekly meetings and I’m feeling a little more >> comfortable about being a part of Open MPI - and I’m looking forward to it. >>> >>> But I find myself needing to look for some direction for my participation >> over the next few months. >>> >>> First - a little background. Historically, I’ve been involved with IB/OPA >> development for 17+ years now, but for the past decade or so I’ve been >> entirely focused on fabric management rather than application-level stuff. >> (Heck, if you ever wanted to complain about why OPA management >> datagrams are different from IB MADs, feel free to point the finger at me, >> I’m happy to explain why the new ones are better… ;-) ) However, it was only >> recently that the FM team were given the additional responsibility for >> maintaining / participating in our MPI efforts with very little opportunity >> for a >> transfer of information with the prior team. >>> >>> So, while I’m looking forward to this new role I’m feeling a bit >> overwhelmed - not least of which because I will be unavailable for about 8 >> weeks this summer… >>> >>> In particular, I found an issue in our internal tracking systems that says >>> (and >> I may have mentioned this before…) >>> >>> OMPI v5.0.0 will remove osc/pt2pt component that is the only component >> that MTLs use (PSM2 and OFI). OMPI v5.0.0 is planned to be released during >> summer 2019 (no concrete dates). https://github.com/open- >> mpi/ompi/wiki/5.0.x-FeatureList. The implications is that none of the MTLs >> used for Omni-Path will support running one sided MPI APIs (RMA). >>> >>> Is this still accurate? The current feature list says: >>> >>> If osc/rdma supports all possible scenarios (e.g., all BTLs support the RDMA >> methods osc/rdma needs), this should allow us to remove osc/pt2pt (i.e., >> 100% migrated to osc/rdma). >>> >>> If this is accurate, I’m going to need help from the other maintainers to >> understand the reason this is being done, the scope of this effort and where >> we need to focus our attention. To deal with the lack of coverage over the >> summer, I’ve asked a co-worker, Brandon Yates to start sitting in on the >> weekly meetings with me. >>> >>> Again, I’m looking forward to both the opportunity of working with an open >> source team, and the chance to focus on the users of our software instead of >> just the management of the fabric - I’m just struggling at the moment to get >> a handle on this potential deadline. >>> >>> --- >>> Mike Heinz >>> Networking Fabric Software Engineer >>> Intel Corporation >>> >>> _______________________________________________ >>> devel mailing list >>> devel@lists.open-mpi.org >>> https://lists.open-mpi.org/mailman/listinfo/devel >> >> _______________________________________________ >> devel mailing list >> devel@lists.open-mpi.org >> https://lists.open-mpi.org/mailman/listinfo/devel _______________________________________________ devel mailing list devel@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/devel
