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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 astronomical open star cluster of the same name.
Pleiades System Facts
Manufacturer - SGI
System Architecture
- 110 Compute Cabinets (64 nodes each; 7,040 nodes total)
- 673.4 Tflop/s peak cluster
- 544.3 Tflop/s LINPACK rating
- Total cores: 56,320
- Total memory: 74.7TB
- Nodes
- 5,888 nodes
- 2 quad-core processors per node
- Xeon E5472 (Harpertown) processors
- Processor speed - 3GHz
- Cache - 6MB per pair of cores
- Memory Type - DDR2 FB-DIMMs
- 1GB per core, 8GB per node
- 1,152 nodes
- 2 quad-core processors per node
- Xeon X5570 (Nehalem) processors
- Processor speed - 2.93GHz
- Cache - 4MB per pair of cores
- Memory Type - DDR3 FB-DIMMs
- 3GB per core, 24GB per node
Subsystems
- 8 front-end nodes
- 1 PBS server
Interconnects
- Internode - InfiniBand, 7,040 compute nodes in a 11D hypercube
- Two independent InfiniBand fabrics
- 24 miles of DDR, QDR, and hybrid cabling
- Gigabit Ethernet management network
Storage
- Nexis 9000 home filesystem
- 4 DDN 9900 RAIDs - 2.8 PB total
- 6 Lustre cluster-wide filesystems, each containing:
- 8 Object Storage Servers (OSS)
- 1 Metadata server (MDS)
Operating Environment
- Operating system - SUSE Linux
- Job Scheduler - PBS
- Compilers - C,Intel Fortran, SGI MPI
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ADDITIONAL INFORMATION
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