Japan dethrones China for supercomputer crown

Japan dethrones China for supercomputer crown

Summary: For the first time since 2004, a supercomputer built in Japan can claim to be the fastest on earth.


According to the Top500 Supercomputing List, which was released Monday, the new world's fastest supercomputer is Japan's K Computer which makes its home in Kobe's RIKEN Advanced Institute for Computational Science. K Computer sped to the front of the class by achieving more than 8 quadrillion calculations per second (petaflop/s), which pushed it ahead of last November's winner, the Tianhe-1A at the National Supercomputing Center in Tianjin, China, which in the latest round achieved 2.6 petaflop/s.

K Computer was built by Fujitsu, and contains more than 80,000 CPUs with eight cores each. The last time Japan sat at the top of the supercomputing world was with NEC's Earth Simulator, which was dethroned in November 2004, after two years as fastest supercomputer.

In the top five, following Tianhe-1A, in ranked order, is the Department of Energy's Jaguar, housed at Oak Ridge National Laboratory, with 1.75 petaflop/s; China's Nebulae at the National Supercomputing Center in Shenzen, with 1.27 petaflop/s; and Tsubame 2.0 at the Tokyo Institute of Technology, with 1.19 petaflop/s.

For more on this story, read Japanese supercomputer is fastest in the world on CNET News.

Topic: China

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  • How nice for them....

    After hearing how the nuclear workers didn't have basic equipment to deal with radiation leaks, etc, you really have to wonder about Japanese priorities.

    Oh well, maybe it glows in the dark. The one in Oak Ridge definitely doesn't do that....
    • Very likely, the money to build it was already spent before the quake hit

      and they probably had it finished too, and all they had been doing was testing. <br><br>The only question now is, will it run Windows 8? :)
  • RE: Japan dethrones China for supercomputer crown

    Sour grapes anyone?
  • RE: Japan dethrones China for supercomputer crown

    With so many CPU's what secret is safe anymore? I wonder if they built one for NSA/CIA as well? It might be helpful to monitor all the cell phone calls in the world at one time!
  • RE: Japan dethrones China for supercomputer crown

    A "flop" is shorthand for "floating point operation," so 8 petaflops is 8 quadrillion floating point operations per second. Integer calculations are much faster than that. Now if they could just use all that computing power to forecast the weather 24 hours in advance. Sigh....