Friday, September 22, 2006

Science and Technology, Cray XMPea

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Cray X-MP From Wikipedia, the free encyclopedia

The Cray X-MP was a supercomputer designed, built and sold by Cray Research. The company's first parallel vector processor machine and a fourth generation super, it was the 1982 successor to the 1976 Cray-1, and the world's fastest computer 1983–1985. The principal designer was Steve Chen.

The X-MP shared the "horseshoe" design of the earlier machine and looked almost identical on the outside. The processors ran on a 9.5 nanosecond (105 MHz) clock (compared to 12.5 ns for the Cray-1A), delivering a theoretical peak speed of 200 megaflops per processor and 400 megaflops for the original two processor 1982 machine. Other improvements over the Cray-1 included: better chaining support and shared memory access with multiple memory ports per processor.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article, Cray_X-MP.

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