Iceberg

ARSC operates a five teraflop IBM system, named Iceberg.

Specifications

• Two IBM p690+ servers each with 32 processors
  • 256 GB of memory per server
• 92 p655+ servers each with 8 processors
  • 16 GB of memory per server
• Four p655 I/O servers and two interactive servers each with 8 processors
  • 16 GB of memory per server
• 5 TFLOPS peak system performance
• 25 TB disk
• Full interconnect between the components

Description

All of the nodes in Iceberg are equipped with IBM's Power4 architecture and run the AIX operating system. The batch system on Iceberg is LoadLeveler.

The two p690+ servers are configured as 32-way shared memory systems, ideal for large-memory OpenMP jobs. The bulk of the computing capability, however, is in the p655+ servers. While these servers can be used as small 8-way shared memory systems, they are more typically used for large, multi-node distributed memory jobs.

Iceberg User Links

• Introduction
• Queues
• Software
• Status
• Downtime

 

Arctic Region Supercomputing Center
PO Box 756020, Fairbanks, AK 99775 | voice: 907-450-8600 | email:

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