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Message: <blockquote data-quote="prasadana2" data-source="post: 6439306" data-attributes="member: 4664">As of November 2009 the fastest supercomputer in the world is the Cray XT5 Jaguar system at National Center for Computational Sciences with more than 19000 computers and 224,000 processing elements, based on standard AMD processors. The fastest heterogeneous machine is IBM Roadrunner. This machine is a cluster of 3240 computers, each with 40 processing cores and includes both AMD and Cell processors. By contrast, Columbia is a cluster of 20 machines, each with 512 processors, each of which processes two data streams concurrently.The Cray XT5 is an updated version of the Cray XT4 supercomputer, launched on November 6, 2007. It includes a faster version of the XT4's SeaStar2 interconnect router called SeaStar2+, and can be configured either with XT4 compute blades, which have four dual-core AMD Opteron processor sockets, or XT5 blades, with eight sockets supporting dual or quad-core Opterons. The XT5 uses a 3-dimensional torus network topology.The XT5 family run the Cray Linux Environment, formerly known as UNICOS/lc.[1] This incorporates SUSE Linux Enterprise Server and Cray's Compute Node Linux.The XT5h (hybrid) variant also includes support for Cray X2 vector processor blades, and Cray XR1 blades which combine Opterons with FPGA-based Reconfigurable Processor Units (RPUs) provided by DRC Computer Corporation.The XT5m variant is a mid-ranged supercomputer with most of the features of the XT5, but having a 2-dimensional torus network topology and scalable to 6 cabinets.In the fall of 2008, Cray delivered a 1.3 petaflops XT5 system to National Center for Computational Sciences at Oak Ridge National Laboratories. This system, with over 150,000 processing cores, was dubbed "Jaguar" and was the second fastest system in the world for the LINPACK benchmark,[2] the fastest system available for open science and the first system to exceed a petaflops sustained performance on a 64-bit scientific application.[3]Jaguar underwent an upgrade to 224,256 cores in 2009, after which its performance jumped to 1.75 petaflops, taking it to the number one position in the 34th edition of the TOP500 list in fall 2009.sources<a href="http://en.wikipedia.org/wiki/Supercomputer" target="_blank">http://en.wikipedia.org/wiki/Supercomputer</a><a href="http://en.wikipedia.org/wiki/Cray_XT5" target="_blank">http://en.wikipedia.org/wiki/Cray_XT5</a>Kraken, a Cray XT5 supercomputer at Oak Ridge National Laboratory<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Oak_Ridge_-_Kraken_%28Cray_XT5%29.JPG/800px-Oak_Ridge_-_Kraken_%28Cray_XT5%29.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

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