TOKYO -- The world's most energy-efficient supercomputer is also the fastest in Japan, according to the two startups behind it.
The Gyoukou supercomputer, from Pezy Computing and ExaScaler, achieves 14.69 gigaflops per watt when running the Linpack benchmark software. The machine's home is a Kanagawa Prefecture research institute of the Japan Agency for Marine-Earth Science and Technology. Gigaflops refer to billions of floating point operations per second.