Japan’s Fugaku Retains Title As World’s Fastest Supercomputer

According to a report from Nikkei Asia (paywalled), "The Japanese-made Fugaku captured its fourth consecutive title as the world's fastest supercomputer on Tuesday, although a rival from the U.S. or China is poised to steal the crown as soon as next year." From a report: But while Fugaku is the world's most powerful public supercomputer, at 442 petaflops, China is believed to secretly operate two exascale (1,000 petaflops) supercomputers, which were launched earlier this year. The top 10 list did not change much since the last report six months ago, with only one new addition -- a Microsoft Azure system called Voyager-EUS2. Voyager, featuring AMD Epyc CPUs and Nvidia A100 GPUs, achieved 30.05 petaflops, making it the tenth most powerful supercomputer in the world. The other systems remained in the same position - after Japan's Arm-based Fugaku comes the US Summit system, an IBM Power and Nvidia GPU supercomputer capable of 148 petaflops. The similarly-architected 94 petaflops US Sierra system is next. Then comes what is officially China's most powerful supercomputer, the 93 petaflops Sunway TaihuLight, which features Sunway chips. The Biden administration sanctioned the company earlier this year. You can read a summary of the systems in the Top10 here.

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