GPU cluster architecture. A GPU cluster has one master (mu01) and four computing nodes (Fermi.1-4). All of the nodes have a XeonE5620, and perform at 2.40 GHZ with two GeForce GTX580. The GTX580 has 512 cores, performs at 1.54 GHz, and has 1.54GB global memory with a peak bandwidth of 192.4 GB/sec. All of the nodes are connected by the GIGABIT line, and mu01 is connected to the Internet.