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Lattice Quantum Chromo Dynamics (QCD) and the Dedicated Computer QCDPAX

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Supercomputing

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Abstract

Lattice QCD (Quantum ChromoDynamics) is believed to be the fundamental law for quarks and gluons, which constitute particles such as protons, neutrons, and pions. QCDPAX is a local memory MIMD parallel computer designed for simulations in lattice QCD. Processing units (PU’s) are connected in a toroidal two-dimensional nearest-neighbor mesh. We have completed construction of the computer made of 240 PU’s (7 GFLOPS peak speed) and we will complete construction of the final QCDPAX made of 480 PU’s (14 GFLOPS peak speed) by the spring of 1990. The program is written in terms of a C-like language, psc (parallel scientific C), and the tuning is possible at an assembly language, qfa (quick floating assembler), developed for the purpose of optimizing the object code. The link update time is evaluated.

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References

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Authors and Affiliations

  1. Institute of Physics, University of Tsukuba, Ibaraki, 305, Japan

    Yoichi Iwasaki

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  1. Yoichi Iwasaki
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Editors and Affiliations

  1. University of Tokyo, 7-22-34 Roppongi, Minato-ku, Tokyo, 106, Japan

    Jiro Kondo (President of The Science Council of Japan, Professor Emeritus) (President of The Science Council of Japan, Professor Emeritus)

  2. IBM Japan Ltd., 19-21, Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo, 103, Japan

    Toshiko Matsuda

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© 1991 Springer-Verlag Tokyo

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Iwasaki, Y. (1991). Lattice Quantum Chromo Dynamics (QCD) and the Dedicated Computer QCDPAX. In: Kondo, J., Matsuda, T. (eds) Supercomputing. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68138-0_3

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  • DOI: https://doi.org/10.1007/978-4-431-68138-0_3

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68140-3

  • Online ISBN: 978-4-431-68138-0

  • eBook Packages: Springer Book Archive

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