JPL Dell Xeon cluster

cosmos.jpl.nasa.gov

Distributed Memory Parallel Processor System:

• 1024 Intel Pentium 4 Xeon processors
• 3.2 GHz
• 1 MB cache
• 32-bit
• 6.55 TFLOPS peak
• 2 GB memory/CPU
• 53 GB Local Scratch Disk/node
• 255 GB I/O nodes disk

Networking:

• 1000BaseT (Gigabit ethernet)interconnect
• Myricom Myrinet-2000 fibre interconnect

Operating System:

• RedHat Linux Enterprise Edition 3
• Platform LSF v6.2

The Dell Xeon cluster is a scalable distributed-memory multiprocessor system. It has 512 nodes and two head nodes. Of the 512 nodes, 496 nodes are compute nodes and 16 nodes are I/O nodes. Of the two head nodes, one is for users to use (cosmos), and the other is reserved for system purposes.

The cluster supports parallel programming with the message passing interface (MPI). It combines the scalability of a massively parallel machine, and the high-capacity memory bandwidth of the Myrinet technology. It utilizes Platform Computing's Load Sharing Facility (LSF) for batch job scheduling. The cluster runs the Linux operating system.

For information on the Dell Xeon Cluster software, see the

JPL Dell Xeon Cluster Software Guide.

For an introductory tutorial on using the Dell 1750, see the

Dell Xeon Cluster User's Guide.

For information on reading or writing files larger than 2 gigabytes, see

2 GB File and Memory Size Limitations.

Related pages:

Dell PowerEdge 1750 Server Technical Information

Myricom Myrinet Components and Software Overview

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