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A Special-purpose Computer for Gravitational Many-body Problems and Merger Simulations

Published online by Cambridge University Press:  03 August 2017

S. K. Okumura ,
T. Ebisuzaki ,
J. Makino ,
D. Sugimoto ,
T. Ito  and
K. Kodaira
S. K. Okumura
Affiliation:
Department of Earth Science & Astronomy, College of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153, JAPAN
T. Ebisuzaki
Affiliation:
Department of Earth Science & Astronomy, College of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153, JAPAN
J. Makino
Affiliation:
Department of Earth Science & Astronomy, College of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153, JAPAN
D. Sugimoto
Affiliation:
Department of Earth Science & Astronomy, College of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153, JAPAN
T. Ito
Affiliation:
Department of Earth Science & Astronomy, College of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153, JAPAN
K. Kodaira
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, JAPAN

Extract

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A backend processor has been constracted which is a pipeline for calculating the gravitational force exerted on one particle from the rest in an astrophysical many-body system (Sugimoto et al. '90). The first version of the processor, GRAPE-1 (GRAvity PipE), was designed with 8 bits floating point format for use in collision-free systems (Ito et al. '90). It is in operation at the speed of 120M flops equivalent.

Type
X- Gas and Star Dynamics (Models and Simulations)
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 356
Copyright
Copyright © Kluwer 1991