The Grid has a large number of computational software titles available.
The Core Cluster of the University Research Grid is composed of Sun Fire X4100, X4140, X4200, and X4600 servers as computer nodes. A Sun Fire X4600 is used as the cluster's backend and a Sun Fire X4500 "Thumper" is used as the cluster's disk array. The Core cluster shows up as racks 0-4 in Ganglia.
The LMR Cluster is an older cluster of Sun Fire v20z nodes that was incorporated into the Research Grid. The LMR Cluster shows up as racks 40-41 in Ganglia.