The fastest got faster, as the K Computer topped its own record on the twice-yearly supercomputer speed test by scoring 10.51 quadrillion calculations per second.
Tianhe-2, with 3.1 million processor cores and a lot of Chinese-build technology, is the new leader of the twice-yearly list of the world's 500 fastest supercomputers.
The latest list of most-powerful computers is a bit of same old, same old. But soon, it won't be so easy to get ahead on the Top500 list by plugging in special-purpose accelerator cards.
The Department of Energy's Advanced Networking Initiative will initially connect three research supercomputers and then link to all DOE national labs.
The system is powered by Nvidia GPUs and thought to be one of the two fastest supercomputers in the world. It's capable of making 20,000 trillion calculations each second.
Harnessing more than 82,000 processors on the world's fourth-ranked supercomputer, scientists run an experiment that represents 1 percent of human brain activity.
The U.S. has overtaken Japan to become home of the world's most powerful supercomputer, as an IBM-based Sequoia system trounces the Japanese K Computer.
Created to monitor the U.S. nuclear weapons stockpile, the IBM supercomputer was the first to break the petaflop barrier.