Japan Will Deploy the World’s Most Powerful Supercomputer Dedicated to Fusion Science

The National Institutes for Quantum and Radiological Science and Technology (QST) has selected a Cray XC50 supercomputer to support its mission to advance nuclear fusion research and development. The as-yet-unnamed system is expected to deliver more than four petaflops of peak performance, more than doubling the capacity of the machine it replaces. That older system, a 1.5-petaflop Bullx cluster known as Helios, was mothballed last year in anticipation of its successor. In 2012, it was the 12th most powerful supercomputer on the planet.

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