ARM Japanese supercomputer is now the fastest in the world

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A supercomputer of Japan has taken the first place in the semi-annual Top500 supercomputer speed ranking. Fugaku, on a computer of the Kobe co-developed by Riken and Fujitsu, makes use of Fujitsu’s 48-core A64FX system-on-chip. This is the first time that a computer based on processors, ARM is at the top of the list.

Fugaku turned in a Top500 HPL result of 415.5 petaflops, equivalent to 2.8 times faster than IBM’s Summit, the nearest competitor. Fugaku also achieved first places in other ratings that the test computers on the various workloads, including Graph 500, HPL-IA, and HPCG. No supercomputer has ever led all four classifications at the time.

Although fastest supercomputer rankings usually bounce between the American and Chinese systems, this is Japan, the first system ranked first on the Top500 in the nine years since Fugaku predecessor, Riken’s K computer. Overall, there are 226 Chinese supercomputers on the list, 114 American, and 30 from Japan. The us-based systems contribute the most to the overall performance with 644 petaflops.

Fugaku is set to turn into the next fiscal year. Until now, it has been used on an experimental basis to the research COVID-19, including diagnostics, simulation of the propagation of SARS-CoV-2 virus, and the effectiveness of Japan’s new contacts app.



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