World's fastest supercomputeris in China

A Chinese supercomputer is the fastest in the world, according to survey results announced Monday, comfortably overtaking a US machine which now ranks second.
Tianhe-2, a supercomputer developed by China's National University of Defense Technology, achieved processing speeds of 33.86 petaflops (1000 trillion calculations) per second on a benchmarking test.
The tests show the machine is by far the fastest computer ever constructed. Its main rival, the US-designed Titan, had achieved a performance of 17.59 petaflops per second, the survey's website said.