China still has the two fastest supercomputers in the world, and Titan at Oak Ridge National Laboratory remains number three.
The semi-annual TOP500 List of the worldâ€™s top supercomputers was released last Monday, November 14, at a conference in Salt Lake City.
Titan, a Cray XK7 system installed at ORNL, a U.S. Department of Energy laboratory, has achieved 17.59 petaflops,Â or quadrillions of calculations per second.
The most powerful supercomputer, a relatively newÂ Chinese supercomputer named Sunway TaihuLight, is capable of 93 petaflops. ItÂ isÂ built entirely using processors designed and made in China.Â In June, itÂ displaced Tianhe-2, an Intel-based Chinese supercomputer that had claimed the number one spot on the six previous TOP500 lists.
Tianhe-2, the number two system, achieved a speed of 33.86 petaflops, or more than 33,000 trillion calculations per second, in a test known as the LINPACK benchmark.Â That ranking program uses a series of linear equations to test computer systems around the world. [Read more…]