QYMSYM: A GPU-accelerated hybrid symplectic integrator that permits close encounters

被引:18
作者
Moore, Alexander [1 ]
Quillen, Alice C. [1 ]
机构
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
基金
美国国家科学基金会;
关键词
Celestial mechanics; Symplectic integrators; Acceleration of particles; CUDA; ALGORITHM;
D O I
10.1016/j.newast.2011.03.009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We describe a parallel hybrid symplectic integrator for planetary system integration that runs on a graphics processing unit (CPU). The integrator identifies close approaches between particles and switches from symplectic to Hermite algorithms for particles that require higher resolution integrations. The integrator is approximately as accurate as other hybrid symplectic integrators but is CPU accelerated. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:445 / 455
页数:11
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