The primary CCSD machine is Jaguar.

Jaguar is a Cray XT4 system. It is provided as a primary system in the Leadership Computing Facility (LCF). Jaguar has a total of 7,832 XT4 compute nodes in addition to input/output (I/O) and login service nodes. Each compute node contains a quad-core 2.1 GHz AMD Opteron processor and 8GB of memory. Aggregate system performance is approximately 263 TF. Approximately 600 TB are available in the scratch filesystems. The service nodes consist of a 2.6 GHz dual-core AMD Opteron processor with 8 GB of memory.