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Fast Simulations of Gravitational Many-body Problem on RV770 GPU

by Kazuki Fujiwara, Naohito Nakasato
()

Abstract

The gravitational many-body problem is a problem concerning the movement of bodies, which are interacting through gravity. However, solving the gravitational many-body problem with a CPU takes a lot of time due to O(N^2) computational complexity. In this paper, we show how to speed-up the gravitational many-body problem by using GPU. After extensive optimizations, the peak performance obtained so far is about 1 Tflops.

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