The ITS high performance computing cluster currently consists of 158 compute nodes with Intel Pentium 4 Xeon EM64T processors. There are 18 nodes with two 3.2 GHz CPUs, 4 Gbytes of main memory, and a 73 Gbyte SCSI hard drive. There are 24 nodes with two 3.8 GHz CPUs, 4 Gbytes of main memory, and a 73 Gbyte SCSI hard drive. There are seven nodes with two 2.3 GHz quad-core CPUs, 12 Gbytes of main memory, and 146 Gbyte SAS hard drive. There are 64 nodes with two 3.0 GHz quad-core CPUs, 16 Gbytes of main memory, and a 146 Gbyte SAS hard drive. There are 44 nodes with two 3.0 GHz dual-core CPUs, 8 Gbytes of main memory, and a 146 Gbyte SAS hard drive. There is one node with four 3.0 GHz dual-core CPUs, 32 Gbytes of main memory, and mirrored 146 Gbyte SCSI hard drives. All nodes are interconnected with Gigabit Ethernet for MPI message passing. There is a master node used for login, compiling, testing, and submitting batch jobs that also provides approximately 4 Tbyte of storage for the cluster and that hosts other cluster services. There is also a management node (hpcc1-mgmtnode.case.edu) used for cluster management purposes and to hold documentation. Finally, all nodes are interconnected by a separate Ethernet for the purpose of out-of-band cluster management.

At the present time, additional hardware is being configured in order to upgrade the underlying cluster operating system, to make some fundamental changes in the way the cluster is managed, and to provide better service to users of the cluster. In the new configuration, there will be a new login node for interactive user sessions, a new master node, a new management node, and two new storage nodes.