SGI Altix

 


We now have 176 CPU cores, 784 GB of shared memory, and 10.8 terabytes in the CXFS file system.

Each CPU is a 64 bit Intel Itanium 2 processor. The system consists of SGI Altix 350 nodes with 1.4 GHz processors, Altix 350 nodes with 1.5 GHz processors, and Altix 450 nodes with dual core 1.6 GHz processors. Each CPU has a floating point benchmark (SPECFP) ranging from 1931 for the 1.4 GHz processors to 2207 for the 1.6 GHz processors. This gives the entire system a floating point performance of 948 GigaFLOPS.

Sets of from 6 to 72 CPUs are grouped together into shared memory nodes. There are multiple networks connecting the processors. These include: NUMAlink for sharing memory, a fiber channel switch for CXFS file system data, gigabit ethernet for internet connectivity, and a secondary ethernet connection as a redundant fail over and management network.

Altix 350 Datasheet    Altix 450 Datasheet    Silicon Graphics, Inc