| SGI XE Cluster Hardware |
Specifications of the SGI XE Cluster:
- 156 SGI Altix XE 320 nodes, each containing:
- two quad-core 3.0GHz Intel Harpertown cpus with
1600MHz front side bus
- L1 cache (on chip): 12 Kb(I) + 8 kbytes(D)
L2 cache (on chip): 6MB per quad-core cpu
- 16Gbyte DDR2-800 memory
- 250GB SATA disk for swap and some job scratch
- on-board DDR InfiniBand adapter
- Aggregate Specfprate_base_2006 of (compute nodes only)
12168 (AC is around 20000)
Peak theoretical performance of almost 15TFlops.
- Total of 2.7TB of RAM on compute nodes
- 18 Quad-core SGI Altix XE 210 servers for
Lustre fileserving
- Approx 54 TBytes of global user storage using 8
SGI InfiniteStorage 120
JBOD trays each with 12 750GByte Seagate SATA drives
- Approx 20 TBytes user scratch space for running jobs using 20
SGI TP9100 JBOD trays each with 16 73GByte Fibre Channel drives
- Total of over 130 TBytes of disk
- 192-port Voltaire ISR2012 InfiniBand switch
for both MPI and Lustre filesystem traffic:
Measured MPI Latency: 3.4us
Measured MPI Bandwidth: > 1200MB/s per node
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