Today TOP500.org announced that, for the fourth consecutive time, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, has retained its position as the world’s No. 1 system with a performance of 33.86 petaflop/s (quadrillions of calculations per second) on the Linpack benchmark, according to the 44th edition of the twice-yearly TOP500 list of the world’s most powerful supercomputers.
“Over at the Parallel for All Blog, Everett Phillips and Massimiliano Fatica write that GPUs offer good acceleration on the new HPCG benchmark that has been designed to augment Linpack as a measure of performance for the TOP500. Their GPU porting strategy focused on parallelizing the Symmetric Gauss-Seidel smoother (SYMGS), which accounts for approximately two thirds of the benchmark flops.”
In this video, Jack Dongarra, Erich Strohmaier, and Michael Resch discuss the current TOP500 list at ISC’14. “Although the United States remains the top country in terms of overall systems with 233, this is down from 265 on the November 2013 list. The number of Chinese systems on the list rose from 63 to 76, giving the Asian nation nearly as many supercomputers as the UK, with 30; France, with 27; and Germany, with 23; combined. Japan also increased its showing, up to 30 from 28 on the previous list.”
This is getting to sound familiar. “For the third consecutive list, Tianhe-2 remains world’s No. 1 system with a performance of 33.86 Petaflops on the Linpack benchmark. The US entries from Titan and Sequoia come in at number two and three, respectively, followed by the formidable K computer in Japan coming in at number four.”