The Institute maintains central computing resources which include two 64-bit LINUX clusters, garibaldi and bluefish, and a large shared memory SGI Linux machine (yellowtail). The garibaldi LINUX cluster has a total of 3020 CPUs available for computations, while the bluefish LINUX cluster contains 576 processors. The SGI LINUX machine, yellowtail, is a 128 CPU SGI 3700 server, with 128 GBytes of memory and one Terabyte of local disk space. Between local and shared disks each of these clusters has over fifty Terabytes of disk space available for computational data. These systems use the Portable Batch System (PBS) batch queueing system to ensure maximum system throughput and fair access
