System specifications:
Cray Linux Environment (CLE) 2.2
A peak performance of 1.03 PetaFLOP
99,072 compute cores
129 TB of compute memory
A 3.3 PB parallel file system of disk storage for scratch space (2.4 PB available)
8,256 compute nodes
Each node has:
Two 2.6 GHz six-core AMD Opteron processors (Istanbul)
12 cores
16 GB of memory
Connection via Cray SeaStar2+ router