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Move Over, China: U.S. Is Again Home to World’s Speediest Supercomputer

The New York Times
Steve Lohr, June 8, 2018

Oak Ridge National Laboratory’s Summit system is expected to be named the world’s fastest supercomputer in the Top500 rankings coming out later this month, effectively ending China’s five-year reign at the top of the list, says the University of Tennessee’s Jack Dongarra. Summit can execute calculations of 200 petaflops a second, and is expected to help expedite the development of artificial intelligence and other technologies. Summit is more than twice as fast as the leading supercomputer ranked in the most recent Top 500 list in November, which is based at China’s National Supercomputing Center. Powering the Oak Ridge system are 9,216 central processors from IBM and 27,648 graphics processors from Nvidia interconnected by 185 miles of fiber-optic cable. Summit is viewed as a stopgap measure, as supercomputers five times faster are in the works both in the U.S. and overseas.

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