High Performance, Dense, Low Power

Linux Clusters

Matt ReillyAugust 23, 2007

2

SiCortex Dense, Low Power Linux Systems

7.8 Terabytes ECC memory

5832 64-bit processors

1.5 µs MPI latency

18 KW (208v 3Ø 60A)

864 Gigabytes ECC memory

648 64-bit processors

1.5 µs MPI latency

2 KW (110v 1Ø 20A)

3

The Building Block

PCI Express I/OCompute Node

Memory

Fabric Interconnect

4

FFT3D -- an ExampleDelivered FLOPS -- 3D FFT (512x512x512)

1.E+02

1.E+03

1.E+04

1.E+05

1 10 100 1000

Number of Processors

MF

LO

Ps

Opteron/GigE Measured

SiCortex Measured