Japan’s supercomputer has retained its position as the world’s fastest in term of computing speed in a semiannual ranking by the US-European TOP500 project, Japanese media said on Tuesday.

Fugaku supercomputer was previously ranked first in June.

According Kyodo news agency, the supercomputer, named after an alternative word for Mt. Fuji, also took the top spot in three other categories measuring performance in computational methods for industrial use, artificial intelligence applications and big data analytics.

Fugaku performed over 442 quadrillion computations per second, around three times faster than the Summit system developed by the U.S.’ Oak Ridge National Laboratory, according to the agency.

The Japanese supercomputer, which was jointly developed with Fujitsu Ltd. at Riken’s facility in Kobe, forms a key foundation for powerful simulations used in scientific research and the development of industrial and military technologies.

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