Chinese Supercomputer: How fast is a petaflop?

Chinese supercomputer blows past the US record for speedy hardware.

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    Chinese supercomputer, called Tianhe-I, sits in the National Super Computer Center in north China's Tianjin Municipality.
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A leading Chinese research center has built the world's fastest supercomputer, an industry announcement said Thursday, underscoring the country's rise as a science and technology powerhouse. This Tianhe-1 Chinese supercomputer housed at the National Center for Supercomputing in the northern port city of Tianjin is capable of sustained computing of 2.507 petaflops, the equivalent of 2,507 trillion calculations, per second.

The announcement was posted Thursday on Chinese supercomputer research websites. An official listing of the world's fastest supercomputers, the semiannual TOP500, is due to be issued Friday.

If verified, the Chinese supercomputer would be significantly faster than the current title holder, the U.S. Department of Energy's Cray XT5 Jaguar in Oak Ridge, Tennessee, which topped the list issued in June at 1.75 petaflops per second.

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"This new speed achieved by China means we may replace the U.S. to hold the new world record," Tianhe-1 Project Director Li Nan told state broadcaster CCTV in an interview.

But State Department spokesman P.J. Crowley dismissed the advancement, saying he was confident the U.S. could regain the lead.

"I wouldn't call this a Sputnik moment," Crowley said, referring to the Russian craft that became, in 1957, the first artificial satellite to orbit the Earth and made many Americans worry that they were losing their competitive edge. "We have very significant capabilities in this regard, and I have no doubt the scientific community will pick up the challenge."

Supercomputers are used for complex work such as modeling weather systems, simulating nuclear explosions and designing jetliners.

The announcement highlighted how China is leveraging rapid economic growth and sharp increases in research spending to join the United States, Europe and Japan in the global technology elite.

A 15-year government plan issued in 2006 promises support for areas ranging from computers to lasers to genetics.

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