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Tag Archives: torus
Cost: The Biggest Pothole on the Exascale Road
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
Fat-tree and Torus Articles Now Available at arXiv.org
In case you wanted something more than an informal introduction into the world of fat-tree and torus networks — here you are. A formal problem statement (and solution!) in an academic form is given in these two articles hosted at … Continue reading
Real Cost Comparison of Fat-tree and Torus Networks
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
Finally, A Topology-Aware MPI Implementation
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
Posted in Reviews
Tagged fat-tree, InfiniBand, networking, torus
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Torus Network: As Round As It Gets
Fat-trees have great performance characteristics, but they can be costly for some installations. Blocking fat-trees can be used as an alternative, but if your computational task has locality of communications and is well suited to torus networks — why not … Continue reading
Posted in News
Tagged fat-tree, networking, torus
Comments Off on Torus Network: As Round As It Gets