From Wikipedia, the free encyclopedia Cray X2
Cray X2
The Cray X2 is a vector processing node for the Cray mented by the YARC router ASIC. X2 blades also link into
XT5h supercomputer, developed and sold by Cray Inc. the XT5h system via its SeaStar2+ processor interconnect.
and launched in 2007. Up to 256 X2 blades can be installed in an XT5h sys-
The X2, developed under the code name Black Widow, tem. The X2 processor nodes integrate with the Cray
was originally expected to be a standalone supercomput- XT5h’s UNICOS/lc OS, user environment, and storage
er system, superseding the Cray X1 parallel vector super- subsystem, as part of the Rainier project.
computer. However, the X2 was eventually launched as
one of the four processor "blade" options for the XT5h
system.
External links
An X2 blade comprises two nodes, each with four • Cray XT5h Supercomputer
symmetric multiprocessing vector processors and 32 or • Cray Introduces Next-Generation Supercomputers
64 GB of shared memory. Each node has a peak perfor- • Thinking Ahead: Future Architectures from Cray
mance of more than 100 gigaflops. X2 processors are con- • The BlackWidow High-Radix Clos Network
nected using a radix-64 "fat-tree" interconnect imple- • Cray X2 Vector Processing Blade
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Categories:
• Supercomputers
• Computer hardware stubs
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