Fu Haohuan (2nd R), deputy director of the Chinese National Supercomputing Center in Wuxi, and Yang Jinzhe, a special researcher of the Wuxi center, display the No. 1 certificate of the semiannual T0P500 list of supercomputers in Frankfurt, Germany, June 19, 2017. China's Sunway TaihuLight and Tianhe-2 are still the world's fastest and second fastest machines, but America's Titan was squeezed into fourth place by an upgraded Swiss system, according to the latest edition of the semiannual T0P500 list of supercomputers released Monday. (Xinhua/Luo Huanhuan)
