Tag Archives: InfiniBand

Will We Ever See InfiniBand in Desktop Computers?

Posted on July 31, 2014 by Konstantin S. Solnushkin

[Update: the post is not actually about InfiniBand as such, it’s more about convergence that can be brought by the new Intel Omni Scale Fabric :-) Please see the comment below the post, and thanks for your time!] When I … Continue reading →

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Cost: The Biggest Pothole on the Exascale Road

Posted on May 31, 2014 by Konstantin S. Solnushkin

Recently, industry analyst John Barr wrote at the ISC blog about “Potholes on the Road to Exascale”. John speaks about a unified programming environment that should be able to support all sorts of computing devices of the future. That’s right: … Continue reading →

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Exascale Supercomputers: Anything but Cheap

Posted on March 31, 2014 by Konstantin S. Solnushkin

Science and engineering both rely on the continuous increase in supercomputing performance. Back in 2009, it was believed that exascale machines will become available by 2018 — nine years ahead seemed like a lot of time. No one knew how … Continue reading →

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Building Fat-Tree Networks with Ethernet Hardware

Posted on January 27, 2014 by Konstantin S. Solnushkin

Fat-tree networks work very well with InfiniBand hardware. At the same time, a fat-tree built with Ethernet switches may not always work: this is because switches must be able to discover multiple paths in a topology and balance traffic among … Continue reading →

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648-Port InfiniBand FDR Switches Added to the Database

Posted on December 31, 2013 by Konstantin S. Solnushkin

It’s Christmas time… Just a few hours, and year 2013 will become a thing of the past. Gone with it will also be the outdated InfiniBand QDR hardware that was — until today — used in the fat-tree design tool. … Continue reading →

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Fraunhofer File System (FhGFS): Solid, Fast, and Made in Europe

Posted on November 30, 2013 by Konstantin S. Solnushkin

There are a lot of good research projects going on in Europe: if you didn’t hear about them, it is simply because they are not receiving the media attention they deserve. One of such projects is the Fraunhofer parallel file … Continue reading →

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Many-core and InfiniBand: Making Your Own CPUs Gives You Independence

Posted on July 2, 2013 by Konstantin S. Solnushkin

The headline sounds like the obvious thing: of course, if you can make your own CPUs for your projects, then you don’t have to rely on CPU manufacturers. “But wait”, you would ask, “Aren’t CPU design and manufacture very expensive?” … Continue reading →

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Real Cost Comparison of Fat-tree and Torus Networks

Posted on January 18, 2013 by Konstantin S. Solnushkin

Thanks to Mellanox Technologies, our tool that designs fat-tree and torus networks now operates with real life prices for InfiniBand hardware. Mellanox kindly provided list prices for the previous generation of switches, InfiniBand QDR: these figures are not likely to … Continue reading →

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Finally, A Topology-Aware MPI Implementation

Posted on November 19, 2012 by Konstantin S. Solnushkin

Good news from the Supercomputing-2012 (SC12) conference: ten collaborators (including a talented team led by Dr. Dhabaleswar K. Panda) presented a paper on a new approach for assigning processes to compute nodes in InfiniBand networks. Roughly, it works as follows: … Continue reading →

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Marrying NVIDIA Tesla and InfiniBand?

Posted on July 18, 2012 by Konstantin S. Solnushkin

My friend is working on a research project dedicated to many-core architectures, such as NVIDIA’s GPUs or Intel’s Xeon Phi, that have lots of simple cores best suited to straightforward computations. Sometimes those cores need to communicate with their neighbours … Continue reading →

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