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2007 DoD High Performance Computing Modernization Program Users Group Conference
System Overview The US Army Engineer Research and Development The current ERDC Cray XT3 (Sapphire) contains Center Major Shared Resource Center has recently 4,160 processing nodes with each node running a 64-bit upgraded its Cray XT3 system from single-core to dual-2.6 GHz dual-core Opteron processor with 4GB dedicated core AMD Opteron processors and has procured a quad-memory. The nodes are connected to each other in a core XT4 supercomputer for installation in early 2008. three-dimensional<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/hpcmp-ugc.2007.10">doi:10.1109/hpcmp-ugc.2007.10</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/xysbc2wlbfdf3e7sbdy5owkutq">fatcat:xysbc2wlbfdf3e7sbdy5owkutq</a> </span>
more »... ) torus using a Hyper Transport This paper provides performance analysis of several link with a dedicated Cray SeaStar communications representative Department of Defense applications engine. Sapphire is rated at 42.6 TFLOP/s and contains executed on single-core and dual-core AMD Opteron 374TB of Fibre Channel RAID disk storage. Sapphire processors. The authors provide a detailed strong-runs the UNICOS 1.5.39 operating system with the scaling study that focuses on addressing some areas of Catamount microkemel running on the compute nodes. contention that may lead to increased job run times on Service nodes run a full SuSE Linux distribution with applications running on many thousands of processors. Cray XT3 extensions. The pre-upgrade system The authors intend to use the results of this study as a specifications included the 1.4.43 version of UNICOS and guide for determining application performance on the 4,096 nodes of 2.6 GHz AMD Opteron processors, with quad-core Cray XT4. one core per node and 2GB of user accessible memory.
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