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News Link • Technology: Computer Hardware

Japanese Supercomputer Unseats Chinese Supercomputer, Is Now the World's Fastest

• Rebecca Boyle via

A Japanese supercomputer is now the world’s fastest, unseating the previous record-holder by nearly a factor of four. The K Computer, based at the RIKEN Advanced Institute for Computational Science (AICS) in Kobe, can perform 8 petaflops — that’s 8 quadrillion calculations per second.

The next-best computer is China’s Tianhe-1A , which set a record at 2.6 petaflops last fall. The U.S.-based Jaguar computer at Oak Ridge National Laboratory is now in third place with 1.75 petaflops.

K Computer topped the newest TOP500 List of the world’s fastest supercomputers, announced Monday at the International Supercomputing Conference in Hamburg.

K Computer, built by Fujitsu and entirely made in Japan, has 672 racks equipped with a current total of 68,544 SPARC64 VIIIfx CPUs, each with eight cores. It will eventually have 800 racks and will be capable of performing 10 petaflops, according to a news release from RIKEN. RIKEN and Fujitsu plan to have the computer fully operational by November 2012.


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