Supercomputer Fugaku


The supercomputer Fugaku, jointly developed by RIKEN and Fujitsu since 2014, was completed on March 9, 2021.
On the same day, Fugaku became available for shared use, providing access for a wide range of researchers and users in academic and industrial fields.

Japan's Fugaku Retains Title as World's Fastest Supercomputer for fourth consecutive term

Tokyo, November 16, 2021

The supercomputer Fugaku, jointly developed by RIKEN and Fujitsu, has successfully retained the top spot for four consecutive terms in all four of the major high-performance computer rankings...

Fugaku and associated technologies help to solve major challenges in the world today

Interview with the lead developers of the supercomputer Fugaku

We invited two key persons who led the development of Fugaku to discuss the history of supercomputers and the possibilities that await in the future.

Fugaku: Pulling the Future Closer

What is Fugaku?

System features

A system that excels in its all-around capabilities with up to 100 times greater application performance than that of the K computer

  • Low power consumption, high computational performance, user convenience , and ability to produce ground-breaking results
  • Power consumption of 30 to 40 MW (cf. K computer: 12.7 MW)
  • Design also suited for AI applications such as deep learning

Fujitsu's expertise

Developing the entire system from the processor to software by integrating cutting-edge technologies

  • Processor compliant with Armv8.2-A SVE, the latest instruction set architecture for high-performance servers


World-leading performance using the newly developed A64FX processor

  • Total number of nodes: 158,976 (432 racks)
  • Peak performance (boost mode) : 537 PFLOPS (double precision)

Cutting-edge supercomputer utilizing technology from the supercomputer Fugaku

Expected Outcome: Priority Issues and Exploratory Challenges

Social and scientific priority issues to be tackled by using the Supercomputer Fugaku

Priority Issues

  • Achievement of a society that provides health and longevity

    1. Innovative drug discovery infrastructure through functional control of biomolecular systems
    2. Integrated computational life science to support personalized and preventive medicine
  • Disaster prevention and global climate problems

    1. Development of integrated simulation systems for hazards and disasters induced by earthquakes and tsunamis
    2. Advancement of meteorological and global environmental predictions utilizing observational "Big Data"
  • Energy problems

    1. Development of new fundamental technologies for high-efficiency energy creation, conversion/storage and use
    2. Accelerated development of innovative clean energy systems
  • Enhancement of industrial competitiveness

    1. Creation of new functional devices and high-performance materials to support next-generation industries(CDMSI)
    2. Development of innovative design and production processes that lead the way for the manufacturing industry in the near future
  • Development of basic science

    1. Elucidation of the fundamental laws and evolution of the universe

RIKEN Center for Computational Science

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