Here’s the slides from the Open MPI State of the Union (SotU) BOF that were presented by George Bosilca, Nathan Hjelm, and myself at the SC’15 trade show. Thanks to all who were able to join us at the BOF in person! UPDATE: Per request, I
Open MPI recently updated its version numbering scheme and development roadmap. This new scheme aims to provide more semantic information in the Open MPI “A.B.C” version number to both end users and system administrators.
Yesterday morning, I gave a presentation at the 2015 OpenFabrics Software Developers’ Workshop. I discussed the status of libfabric support in Open MPI. Here’s a copy of my slides:
With a little sadness, I note that LAM/MPI was officially retired recently. LAM/MPI’s hosting provider, Indiana University, made the decision not to renew the lam-mpi.org domain any more. As of a few weeks ago, LAM/MPI’s web site is no
Working on an MPI implementation isn’t always sexy. There’s a lot of grubby, grubby work that needs to happen on a continual basis to produce a production-quality MPI implementation that can be used for real-world HPC applications. Sure
In my prior blog entry, I described the basics of Open MPI’s tree-based launching system over ssh (yes, there are still some valid / good reasons for using ssh over a native job scheduler / resource manager’s parallel launch
I’ve mentioned it before: the run-time systems of MPI implementations are frequently unsung heroes. A lot of blood, sweat, tears, and innovation goes into parallel run time systems, particularly those that can scale to very large systems. But
Today’s blog post is by Nathan Hjelm, a Research Scientist at Los Alamos National Laboratory, and a core developer on the Open MPI project. The latest version of the “vader” shared memory Byte Transport Layer (BTL) in the upcoming
Half-round-trip ping-pong latency may be the first metric that everyone looks at with MPI in HPC, but bandwidth is one of the next metrics examined. 40Gbps Ethernet has been available for switch-to-switch links for quite a while, and 40Gbps NICs are
