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UT computer scientist Jack Dongarra’s Top 500 list of the world’s fastest supercomputers has been released. While the positions haven’t changed, there were shake-ups. For one, K Computer, which became the world’s fastest supercomputer by a factor of three five months ago, has been upgraded and is now four times faster than the next-fastest. It is more powerful than the next seven supercomputers combined, according to an article in CNNMoney which breaks down the list. The Top 500 list is revised each June and November by researchers at the National Energy Research Scientific Computing Center, UT Knoxville and the University of Mannheim in Germany. China’s Tianjin-based National Supercomputing Centre holds second spot, with the United States’ Oak Ridge in third.