| 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 (a few nodes have 32Gbyte)
- a range of 250GB, 500GB and 1TB SATA disks for swap and 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 15 TFlops.
- 32 Fermi GPUs (within Telsla s2050), each containing:
- 488 CUDA cores in 14 stream multi-processors (SM), each SM containing
- 32 CUDA cores running at 1.15GHz
- 64Kbytes configurable L1/shared memory.
- 2.6 Gbytes GDDR5 memory (ECC enabled)
- 786Kbytes L2 cache
Increased total system performance: 16 TFlops.
- 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 12x 750GByte Seagate SATA drives
- Approx 20 TBytes user scratch space for running jobs using 20x
SGI TP9100 JBOD trays each with 16x 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
|
