Japan has selected a Cray XC50 supercomputer to support its mission to advance nuclear fusion research and development. It will be a 4 petaflop computer that will replace a 1.5-petaflop Bullx cluster known as Helios that was shutdown already.
It will be the world’s fastest supercomputer used for fusion energy research.
Currently the most powerful XC50 supercomputer in the world is the 25-petaflop Piz Daint, in Switzerland, although that machine derives most of its flops from NVIDIA Tesla P100 graphic processors.
The Piz Daint is the third most powerful computer in the world and is the most powerful computer in Europe and the most powerful computer outside of China.