Processors

The Grex SGI Altix XE 1300 cluster consists of 316 compute nodes, each with two 6-core Intel Xeon X5650 2.66GHz processors (Intel Westmere architecture). 24 compute nodes have 96GB of memory and the remaining 292 nodes have 48GB of memory.

Interconnect

All compute nodes are connected by a non-blocking Infiniband 4X QDR network.