Networks for MPI
It seems like we’ve gotten a rash of “how do I setup my new cluster for MPI?” questions on the Open MPI mailing list recently. I take this as a Very Good Thing, actually — it means more and more people are tinkering with and
HPC
First public tools for the MPI_T interface in MPI-3.0
Today’s guest post is written by Tanzima Islam, Post Doctoral Researcher at Lawrence Livermore Laboratory, and Kathryn Mohror and Martin Schulz, Computer Scientists at Lawrence Livermore Laboratory. The latest version of the MPI Standard, MPI
Can I MPI_SEND (and MPI_RECV) with a count larger than 2 billion?
This question is inspired by the fact that the “count” parameter to MPI_SEND and MPI_RECV (and friends) is an “int” in C, which is typically a signed 4-byte integer, meaning that its largest positive value is 231, or about 2
MPI over 40Gb Ethernet
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
Java Bindings for Open MPI
Today’s guest blog post is from Oscar Vega-Gisbert and Dr. Jose Roman from the Department of Information Systems and Computing at the Universitat Politècnica de València, Spain. We provide an overview of how to use the Java bindings included in
Wrap-up: Cisco at HPC for Wall Street
We recently returned from another great experience at the High Performance Computing Linux for Wall Street event in New York on April 7, 2014. This year’s 11th annual HPC conference focused on big data, HPC applications, data centers fabrics, cloud
New Open MPI stable series launched: v1.8
The Open MPI project released version v1.8 last week. This is a major release that heralds the beginning of a new production-ready series, full MPI-3.0 support, and a new OpenSHMEM implementation. Open MPI is developed in a tick-tock fashion
Belated April Fool’s blog post
I was on vacation last week, and had a nice April Fool’s blog post queued up to be posted at 8am US Eastern time on 1 April 2014. It should have appeared whilst I was relaxing on a beach… but due to a bug in our WordPress installation, it
EuroMPI/ASIA 2014: Call for Workshop papers
Held in conjunction with EuroMPI/ASIA 2014 (see the associated call for papers), September 9-12, 2014. In-cooperation status with ACM and SIGHPC. This year, EuroMPI/ASIA 2014 will hold two workshops. Accepted workshop papers will be included in