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.
At least two American 10-petaflop machines  are set to come online next year — IBM is building Mira, based at  Argonne National Laboratory, and Blue Waters, based at the University of  Illinois at Urbana-Champaign's National Center for Supercomputing  Applications. Lawrence Livermore National Laboratory is getting a  20-petaflop IBM model called Sequoia. 
K computer will be used for global climate research, meteorology, disaster prevention, and medicine, according to RIKEN.
[via Engadget]







 
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