Phoenix

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Phoenix

Notice:
Decommission of Cray X1E, September 30, 2008

After a long and useful life at the NCCS, the Cray X1E (phoenix) will be decommissioned on September 30, 2008.

  • Batch jobs will not be allowed to start after 00:00 on Saturday, September 27.
  • Users will not be able to access phoenix or robin after 00:00 on Wednesday, October 1.
  • Data in phoenix’s scratch filesystems will not be backed up prior to the decommission. Thus, users are responsible for archiving any important data from those locations. Users will not be able to access phoenix’s scratch filesystems after 00:00 on Wednesday, October 1.
  • To allow users the opportunity to move data from their home, project, and HPSS areas to another location, users on phoenix-only projects will retain access to home.ccs.ornl.gov until 00:00 on Monday, November 3.


Phoenix
Phoenix is a Cray X1E provided as a primary system in the National Center for Computational Sciences (NCCS).
Phoenix has 1,024 multistreaming vector processors (MSPs), in which each MSP has 2 MB of cache and a peak computation rate of 18 GF. Four MSPs form a node with 8 Gb of shared memory. Memory bandwidth is very high, roughly half the cache bandwidth. The interconnect functions as an extension of the memory system, offering each node direct access to memory on other nodes at high bandwidth and low latency.
The Cray X1E uses custom-designed vector processors to get high performance for scientific codes. The Cray-designed processors are linked using a high-performance shared memory interconnect technology. Each of Phoenix’s 1,024 MSPs can carry out as many as 18 billion operations per second, making the performance of the total system as high as 18.5 trillion operations per second.