China Supercomputer Vexes U.S.

China's installation of the world's fastest supercomputer is galvanizing efforts by U.S. government agencies and companies to restore American leadership in the technology, a key tool in such fields as climate research, product design and weapons development.

Participants hope to out race Chinese engineers in bringing a thousand-fold acceleration of today's most powerful machines—replaying a crusade in the past decade that leapfrogged a supercomputer in Japan that briefly held the world speed crown.

This time, the challenges could be much tougher. Achieving the next major leap in computing performance could require systems with as many as a billion electronic brains

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China's World's Fastest,Tianhe-1A Supercomputer

Tianhe-1A supercomputer in China is world's fastest. China claims that the supercomputer has taken the title away from the U.S. A single-day task for Tianhe-1A might take a mainstream dual-core personal computer 160 years to complete -- if it worked nonstop.

The surprise Tianhe supercomputer could lead the official top 500 supercomputer list. The official top 500 supercomputer list isn't out yet, but China is already declaring victory. A Chinese scientific research center has built what appears to be the fastest-ever supercomputer, edging out the United States.

The National University of Defense Technology (NUDT) unveiled the machine on Thursday. The machine has 1.4 times the horsepower of the top supercomputer in the last ranking. Tianhe, meaning Milky Way, is able to do more than one quadrillion calculations per second at its peak.

"I was shocked at the milestone breakthrough, which was beyond expectation," said Zhang Yunquan, a researcher with the Institute of Software of the Chinese Academy of Sciences and an organizer of the China Top 100 list. "I previously forecast China's first petaFLOP computer no earlier than the end of 2010."

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