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Charles Algernon Parsons, a researcher at the Edinburgh based parallel computing centre, told the BBC on July 31 that because China has the fastest computers in the world, the United States is clearly challenging China's dominance in this area: "The United States is aware of the fact that if it wants to stay in the race, it has to invest, " said a July 31 report by Japan's Kyodo News Agency, under the headline, "the United States plans to regain its position as the number one supercomputer, and Obama is challenging China. ". According to the article, the goal of Obama's move is to recapture the top spot in computing speed that China has lost since 2013. According to a report on the American Association for the Advancement of Science's website on July 31, the U.S. Department of Energy ranked second in the world's Top 500 supercomputer rankings released on July 13 on Titan, a system based at Oak Ridge National Laboratory in Tennessee, but it is almost half as fast as the top-ranked Chinese Tianhe-2. Moreover, China recently announced an ambitious upgrade to a "Tianhe-2 speed" of a billion times a second. According to NPR, the super-computer field is so competitive that it could be called an "arms race. ". Computers in the United States, Japan and China repeatedly vie for the top spot in the top 500. In 2009, an IBM computer called the roadrunner reached 100 million calculations per second for the first time, and just five years later, it was already on the "outdated" list. The United States is wary of China's development of supercomputing power. As in April, the U.S. government banned Intel from selling a fast-computing chip to China. The chip is reported to be able to help "Tianhe-2" systems upgrade. "It's the mindset of the United States to keep the lead, to keep the absolute lead, " Wang said, whether it's Obama's presidential order to build the fastest computer by the deadline, or an earlier embargo on ultra-computing core hardware, is the above-mentioned U. S. mentality of reflection, because "super-computing technology is dual-use technology, super-computing capability leading all-round leading significance. ". VPL-B1152C-CK14AA
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