| 多体问题在GPU上实现的讨论 |
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| 引用本文： | 徐磊,徐莹. 多体问题在GPU上实现的讨论[J]. 计算机应用与软件, 2012, 0(1): 92-95 |
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| 作者姓名： | 徐磊 徐莹 |
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| 作者单位： | 上海超级计算中心 |
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| 基金项目： | 国家高技术研究发展计划项目(2009AA012200) |
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| 摘 要： | 多体问题(N-body)是力学的基本问题之一,研究N个质点互相作用的运动规律。结合分子动力学计算模拟软件LAMMPS和天体多体物理模拟软件Gadget-2这两个有广泛应用的多体并行计算软件,分析其基本算法和实现,讨论这两个有代表性的并行计算软件在GPU等加速部件上移植的基本思路。
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| 关 键 词： | 多体问题 分子动力学 天体多体问题 并行算法 GPU |
INVESTIGATION OF THE IMPLEMENTATION OF N-BODY PROBLEM ON GPUS |
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| Xu Lei Xu Ying. INVESTIGATION OF THE IMPLEMENTATION OF N-BODY PROBLEM ON GPUS[J]. Computer Applications and Software, 2012, 0(1): 92-95 |
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| Authors: | Xu Lei Xu Ying |
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| Affiliation: | Xu Lei Xu Ying(Shanghai Supercomputer Center,Shanghai 201203,China) |
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| Abstract: | N-body problem is one of the basic problems in mechanics,where N is any positive integer.This problem studies the interactions between multiple point of mass and the motions of these particles.In this work,we investigate the parallel algorithms of the classical molecular dynamics package LAMMPS and the cosmological N-body/SPH parallel simulator Gadget-2,which are widely used and show excellent scalability on massive parallel computers with distributed memory.With detailed analysis of the parallel algorithms,we discussed the strategy of implementing these N-body parallel simulators on GPU,and the preliminary benchmark results are discussed in this work. |
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| Keywords: | N-body problem Molecular dynamics Cosmological simulations Parallel algorithm GPU |
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