+ NASA Home + Ames Home + Sitemap + Staff Directory +Home HIGH END SYSTEMS + Pleiades + Columbia + Schirra + RTJones SGI ICE - PLEIADES SUPERCOMPUTER Pleiades has been chosen as NASA's next-generation technology to meet the agency's future supercomputing requirements. With Pleiades, the NAS facility will provide more than 2.5 times its current high-end computing capability for NASA scientists and engineers to conduct simulation and modeling for agency missions. The system is named after the open star cluster of the same name. Pleiades System Facts Manufacturer - SGI System Architecture 84 Compute Cabinets (64 nodes each; 5,376 nodes total) 516 Tflop/s cluster Nodes 2 quad-core processors per node Xeon 5472 (Harpertown) processors Processor speed - 3GHz Cache - 12MB per processor Total cores: 43,008 (512 cores per cabinet) Subsystems 8 front-end nodes 1 PBS server Memory Type - DDR2 FB-DIMMs 1GB per core, 8GB per node Total Memory - 20 TB Interconnects Intranode - InfiniBand, 5,376 compute nodes Two independent InfiniBand fabrics running at 4x DDR Gigabit Ethernet management network Storage Nexis 9000 home filesystem 3 Lustre cluster-wide filesystem, each containing: 8 Object Storage Servers (OSS) 1 Metadata server (MDS) 2 DDN 9900 RAIDs - 300TB total Operating Environment Operating system - SUSE Linux Job Scheduler - PBS Compilers - C,Intel Fortran, SGI MPI ADDITIONAL INFORMATION + Getting an account at NAS + SGI ICE Systems Documentation + Pleiades News Updates + Pleiades Star Cluster Information + Feedback + Site Help + NASA Privacy Statement, Disclaimer, and Accessibility Certification Editor: Jill Dunbar Webmaster: John Hardman NASA Official: Rupak Biswas + Contact NAS Last Updated: September 3, 2008