Today we added one of our new servers to the ICTS HPC cluster to see how it would perform. They're Dell PowerEdge C6145 servers with 64 x 2.2GHz cores and 128GB RAM each. At the moment we only have four of these servers and they'll form the basis of our NextGen HPC cluster which we're going to role out later in 2013.
Above is a single PowerEdge server performing a test MPI job at x63.01 speedup.