Cray XT5

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The Cray XT5 is an updated version of the Cray XT4 supercomputer. It was launched on November 6, 2007. It includes a faster version of the XT4's SeaStar2 interconnect router called SeaStar2+, and can be configured either with XT4 compute blades, which have four dual-core AMD Opteron processor sockets, or XT5 blades, with eight sockets supporting dual or quad-core Opterons.

The XT5h (hybrid) variant also includes support for Cray X2 vector processor blades, and Cray XR1 blades which combine Opterons with FPGA-based Reconfigurable Processor Units (RPUs) provided by DRC Computer Corporation.

The XT5 retains the same UNICOS/lc operating system of the XT4.


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