News

MPI outside of C and Fortran
MPI outside of C and Fortran
Recently, a reader asked me about how MPI defines its global constants. More specifically, the user was asking how MPI defines its interactions with
Aug. 17, 2015
The “vader” shared memory transport in Open MPI: Now featuring 3 flavors of zero copy!
The “vader” shared memory transport in Open MPI: Now featuring 3 flavors of zero copy!
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
Oct. 29, 2014
Networks for MPI
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
May 24, 2014
Java Bindings for Open MPI
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
April 30, 2014
Call for Workshops: EuroMPI/Asia 2014
Call for Workshops: EuroMPI/Asia 2014
The 21st European MPI Users' Group Meeting, EuroMPI/AISA 2014, will be held in Kyoto, Japan, 9th - 12th September, 2014. In addition to the main
Dec. 20, 2013
Hardware and software queuing
Hardware and software queuing
I've talked before about how getting high performance in MPI is all about offloading to dedicated hardware.  You want to get software out of the way as
Oct. 18, 2013
MPI newbie: Building MPI applications
MPI newbie: Building MPI applications
In a previous post, I gave some (very) general requirements for how to setup / install an MPI installation. This is post #2 in the series: now that you've
Oct. 12, 2013
Why is SR-IOV relevant in the HPC world ?
Why is SR-IOV relevant in the HPC world ?
One feature of the usNIC ultra-low latency Ethernet solution for the UCS Cisco VIC that we think is interesting is the fact that it is based on SR-IOV.
Aug. 13, 2013
MPI newbie: Requirements and installation of an MPI
MPI newbie: Requirements and installation of an MPI
I often get questions from those who are just starting with MPI; they want to know common things such as: How to install / setup an MPI implementation How
July 31, 2013
Ultra low latency Ethernet (UCS “usNIC”): questions and answers
Ultra low latency Ethernet (UCS “usNIC”): questions and answers
I have previously written a few details about our upcoming ultra low latency solution for High Performance Computing (HPC).  Since my last blog post, a
July 17, 2013
Open MPI and the MPI-3 MPI_T interface
Open MPI and the MPI-3 MPI_T interface
Open MPI recently revamped its entire run-time parameter system (a.k.a., "MCA parameter system") as part of its implementation effort for the "MPI_T"
July 13, 2013
Process and memory affinity: why do you care?
Process and memory affinity: why do you care?
I've written about NUMA effects and process affinity on this blog lots of times in the past.  It's a complex topic that has a lot of real-world affects on
Jan. 31, 2013