IBM HS21 Blade Cluster (BCX)

• 340 compute nodes (1360 cores); 12.8 TF
• Intel x86_64 3.0 GHz, 8 GB/node RAM
• Linux OS

IBM p575 SMP cluster

• 8 compute nodes (128 cores, 256 virtual cores)
• IBM 16-way Power 5+ 1.9 GHz, 64 or 128 GB/node
• Linux OS

IBM GPFS global filesystem

• High performance global file system
• 4 storage nodes, 38 TB usable disk space
• Accessible to all Intel and Power compute nodes
• 17 TB of space for home directories
• 20 TB of scratch space

Voltaire Infiniband interconnect (4X)

• Intel compute nodes
• Power compute nodes
• GPFS storage nodes