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HEXAGON

  System Type Number of nodes Number of cores CPU type Theoretical total peak Total memory Total disk capacity
hexagon Cray XT4 MPP 1388 5552 Opteron 51 Tflop 6064 GB 288 TB

Full name: hexagon.bccs.uib.no

A summary is provided below. Detailed information can be found on Notur's technical support pages.

Hexagon is a Cray XT4 distributed memory system that consists of 1388 nodes interconnected with a high-bandwidth low-latency switch network (SeaStar2).

Each node has a quad-core AMD Opteron processor (2.3 Ghz) and 4 GB memory (128 nodes have 8 GB memory). The facility is equipped with 288 TB central storage. The file system is Lustre.

The system is well-suited (and intended) for large scale parallel MPI applications. Access to hexagon is in principle only allowed for projects that have parallel applications that use a relatively large number of processors (≥ 128).

Other details:

Operating system
 Linux
Queueing/scheduling system
 PBS
Total space for shared temporary storage
 (TBD)
Total space for home directories
 (TBD)
Max addressable memory
 1260x4 + 128x8 GB
 
User limits
Default size home directory
 10 GB
 
Job limits
Maximum job run-time
 unlimited
Maximum number of CPUs per job
 at least 1024

Location: BCCS, UiB, Bergen
Installed: January 2008
Included in Notur: February 2008

info@notur.no