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Contents 1 Processors 2 Networking 3 Applications 4 Trivia 5 External links Processors Brutus is the central high-performance cluster of ETH Zurich. It is a heterogeneous system with a total of 9912 processor cores in 1108 compute nodes: 410 nodes with four quad-core AMD Opteron 8380 CPUs and 32 GB of RAM (6560 cores) 80 nodes with four quad-core AMD Opteron 8384 CPUs and 32 GB of RAM (1280 cores) 10 nodes with four quad-core AMD Opteron 8380 CPUs and 128 GB of RAM (160 cores) 4 nodes with two six-core AMD Opteron 2435 CPUs and 32 GB of RAM (48 cores), each connected to 6 Nvidia Tesla GPUs 272 nodes with two dual-core AMD Opteron 2220 CPUs and 16 GB of RAM (1088 cores) 324 nodes with two single-core AMD Opteron 250 CPUs and 8 GB of RAM (648 cores) 8 fat nodes with eight dual-core AMD Opteron 8220 CPUs and 64–128 GB of RAM (128 cores) The total is 10,048 cores if one takes into account the cluster's file servers (88 cores), login nodes (32 cores) and management nodes (16 cores). The peak performance of Brutus is approximately 90 teraflops (90 × 1012 floating-point operations per second). Networking All nodes are connected to the cluster's Gigabit Ethernet backbone 256 nodes are connected to a high-speed Quadrics QsNetII network 512 nodes are connected to a high-speed InfiniBand QDR network Applications Thanks to its heterogeneous nature, Brutus can tackle a wide range of applications: Serial and embarrassingly parallel computations Distributed-memory computations (Open MPI, Quadrics MPI) Shared-memory, multithreaded applications (OpenMP) up to 128 GB of memory and 16 threads Third-party (commercial) applications Trivia Brutus was ranked the 88th fastest computer in the world in November 2009 (top500.org) It is the most energy efficient general purpose supercomputer in the world (Heise.de) External links Official Brutus page at ETH Zurich: http://www.cluster.ethz.ch/index_EN Picture gallery: http://www.gallery.ethz.ch/brutus Article in ETH Life, the on-line journal of ETH Zurich Brutus wiki: http://brutuswiki.ethz.ch (access restricted to members of ETH)