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Japanese Supercomputer Ranked 1st in Little Green500 List


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Credit: Green500

Japan's Grape-DR supercomputer tops the June 2010 edition of Green500.org's Little Green500 list, which ranks the performance per unit power consumption of smaller-scale supercomputers. Developed by the University of Tokyo and the National Astronomical Observatory of Japan, Grape-DR has a performance per unit power consumption of 815.43 MFLOPS/W, which is about 5 percent higher than the 773.38 MFLOPS/W of the second-ranked IBM system located in Germany.

Grape-DR combines Intel's Core i7-920 microprocessors and the Grape-DR accelerator chip, which realizes a double-precision performance of 200 GFLOPS with a power consumption of 50W. The computing performance of the Grape-DR supercomputer system is 23.4 TFLOPS, which just misses the 24.67 TFLOPS mark required to be ranked 500th in the latest version of the Top500 ranking of supercomputers.

The Grape-DR's designers say that by adding more memory and boosting the interconnect speed, it is possible to enhance the performance per unit power consumption by about 50 percent within this year.

From Tech-On!
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Abstracts Copyright © 2010 Information Inc., Bethesda, Maryland, USA


 

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