High Performance Computing Networking

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.

Woo hoo! MPI 3.1 votes: aside from one organization who had the leave before the final vote, the MPI Forum unanimously voted to approve MPI-3.1. Get your fresh, hot copy of the MPI-3.1 specification (I’m told that physical books will become available in the coming months for those who are interested — can you guess […]

The term “operating system bypass” (or “OS bypass”) is typically tossed around in MPI and HPC conversations; it’s generally something that is considered a “must have” in order to get good performance with many MPI applications. But what is it?  And if it’s good for performance, why don’t all applications use OS bypass?

Jonathan Dursi recently posted a fairly controversial blog entry entitled “HPC is dying, and MPI is killing it.” Some people immediately dismissed the blog post (and its followups) as trolling.  Others praised Jonathan for bringing up the issues. Brock Palen and I recently chatted with Jonathan about this blog entry on RCE-Cast.

Linux containers, as a lighter virtualization alternative to virtual machines, are gaining momentum. The High Performance Computing (HPC) community is eyeing Linux containers with interest, hoping that they can provide the isolation and configurability of Virtual Machines, but without the performance penalties. In this article, I will show a simple example of libvirt-based container configuration […]

Cisco is pleased to announce the “Supercomputer in your browser” (SiYB) project, designed to bring the rich High Performance Computing (HPC) ecosystem to the world’s most popular software: web browsers. The free SiYB software is a web browser plugin that is easily installed on any desktop or laptop computer running Windows, OS X, or Linux. “I’ve […]

Euro MPI 2015 has returned to Europe!  (recall that Euro MPI/Asia 2014 was in beautiful Kyoto, Japan) Euro MPI 2015 will be September 21-24 in Bordeaux, France. That means that it’s that time of year again: get your papers ready for submission!  The CFP was just recently published:

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:

Earlier this morning, I gave a presentation at the 2015 OpenFabrics Software Developers’ Workshop.  I discussed Cisco’s experiences with writing providers for both the Linux Verbs API and the Libfabric API. Here’s a copy of my slides: