Well, it appears from that article that the primary impact comes from accessing kernel services. With an OS-bypass network, that shouldn’t happen all that frequently, and so I would naively expect the impact to be at the lower end of the reported scale for those environments. TCP-based systems, though, might be on the other end.
Probably something we’ll only really know after testing. > On Jan 3, 2018, at 10:24 AM, Noam Bernstein <noam.bernst...@nrl.navy.mil> > wrote: > > Out of curiosity, have any of the OpenMPI developers tested (or care to > speculate) how strongly affected OpenMPI based codes (just the MPI part, > obviously) will be by the proposed Intel CPU memory-mapping-related kernel > patches that are all the rage? > > > https://arstechnica.com/gadgets/2018/01/whats-behind-the-intel-design-flaw-forcing-numerous-patches/ > > > Noam > _______________________________________________ > 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
