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Grape-4: A Teraflops Machine for N-Body Simulations

Published online by Cambridge University Press:  14 August 2015

Makoto Taiji
Makoto Taiji*
Affiliation:
Institute of Statistical Mathematics, 4-6-7 Minami-Azabu, Minato-ku, Tokyo 106, Japan E-mail: taiji@ism.ac.jp

Abstract.

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We have developed a massively parallel special-purpose computer system for N-body simulations, GRAPE-4 (GRAvity-PipE 4). The GRAPE-4 system is designed for high-accuracy simulations of dense stellar systems. The GRAPE-4 calculates gravitational forces, their derivatives in time and potential energies. It has a hardware for prediction of positions and velocities, which is used for the individual timestep scheme. We integrated 1692 chips of 640 megaflops performance to achieve the peak speed of 1.08 teraflops.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 11 , Issue 2: Highlights of Astronomy. As presented at the XXIIIrd General Assembly of the IAU (Part B), 1997 , 1998 , pp. 600 - 602
Copyright
Copyright © Kluwer 1998

References

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