On 23/09/2019 11.16, Janne Blomqvist wrote: > Hello, > > scouring the release notes for the latest MLNX_OFED (version > 4.6-1.0.1.1, and no, still no RHEL 7.7 support), I read a note about an > upcoming API change at > https://docs.mellanox.com/display/MLNXOFEDv461000/Changes+and+New+Features > > "As of MLNX_OFED v5.0 release (Q1 of the year 2020), the following > MLNX_OFED Verbs API will migrate from the legacy version of user space > verbs libraries (libibervs, libmlx5, etc.) to the Upstream version > rdma-core. > For further details on how to install Upstream rdma-core libraries, > refer to Installing Upstream rdma-core Libraries section in the User > Manual." > > And in the link how to install with upstream rdma-core there are > instructions to use either > > /mlnxofedinstall --upstream-libs > > or if using the yum repo, one should use the RPMS_UPSTREAM_LIBS subdir > rather than RPMS. Looking at the RPMS_UPSTREAM_LIBS subdir, it seems it > has only a small subset of the components available in the full > installation, apparently with the expectation that all the rest will be > installed via the upstream repos. > > Does anybody know more about this? Do I read it correctly that the > RPMS_UPSTREAM_LIBS will be the only one available as of MLNX_OFED 5.0? > And thus MLNX_OFED will become a much "thinner" add-on than currently? > > Has anyone tested these different configurations, if there's any > difference in performance and/or functionality? > > 1. Distro RDMA stack (rdma-core) > 2. MLNX_OFED full > 3. MLNX_OFED RPMS_UPSTREAM_LIBS >
Not to be outdone, the recently released MLNX_OFED 4.7 has reorganized this slightly, and now there's yet another option. So, 1. Distro RDMA stack (rdma-core) 2. MLNX_OFED full (directory RPMS/MLNX_LIBS) 3. MLNX_OFED upstream libs 1 (directory RPMS/UPSTREAM_LIBS) 4. MLNX_OFED upstream libs 2 (directory RPMS_UPSTREAM_LIBS) The difference between options 3 and 4 is that 4 is more bare bones, e.g. 3 includes the MLNX opensm whereas with 4 you're expected to use the distro opensm. -- Janne Blomqvist, D.Sc. (Tech.), Scientific Computing Specialist Aalto University School of Science, PHYS & NBE +358503841576 || janne.blomqv...@aalto.fi _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
