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Communications of the ACM


Fugaku Takes the Lead

Fugaku at Riken Center for Computational Science

Fugaku supercomputer at the Riken Center for Computational Science in Kobe, Japan.

Credit: Shutterstock

Japan's arm-based Fugaku supercomputing system has been acknowledged as the world's most powerful supercomputer. In June 2020, the system earned the top spot in the Top500 ranking of the 500 most powerful commercially available computer systems on the planet, for its performance on a longstanding metric for massive scientific computation. Although modern supercomputing tasks often emphasize somewhat different capabilities, Fugaku also outperforms by other measures as well.

"It's amazing on all benchmarks. This architecture just wins big time," said Torsten Hoefler of the Swiss Federal Institute of Technology (ETH) Zurich. "It is a super-large step." Hoefler shared the 2019 ACM Gordon Bell Prize with an ETH Zurich team for simulations of heat and quantum electronic flow in nanoscale transistors performed in part on the previous Top500 leader, the Summit System at the U.S. Department of Energy's Oak Ridge National Laboratory (ORNL) in Tennessee.


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