NBODY6++GPU: ready for the gravitational million-body problem
文献类型：期刊论文
| 作者 | Wang, L; Spurzem, R; Aarseth, S; Nitadori, K; Berczik, P; Kouwenhoven, MBN; Naab, T |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2015 |
| 卷号 | 450期号:4页码:4070-4080 |
| 关键词 | methods: numerical globular clusters: general |
| 通讯作者 | Wang, L (reprint author), Peking Univ, Kavli Inst Astron & Astrophys, Yiheyuan Lu 5, Beijing 100871, Peoples R China. |
| 英文摘要 | Accurate direct N-body simulations help to obtain detailed information about the dynamical evolution of star clusters. They also enable comparisons with analytical models and Fokker-Planck or Monte Carlo methods. NBODY6 is a well-known direct N-body code for star clusters, and NBODY6++ is the extended version designed for large particle number simulations by supercomputers. We present NBODY6++ GPU, an optimized version of NBODY6++ with hybrid parallelization methods (MPI, GPU, OpenMP, and AVX/SSE) to accelerate large direct N-body simulations, and in particular to solve the million-body problem. We discuss the new features of the NBODY6++ GPU code, benchmarks, as well as the first results from a simulation of a realistic globular cluster initially containing a million particles. For million-body simulations, NBODY6++ GPU is 400-2000 times faster than NBODY6 with 320 CPU cores and 32 NVIDIA K20X GPUs. With this computing cluster specification, the simulations of million-body globular clusters including 5 per cent primordial binaries require about an hour per half-mass crossing time. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SPECIAL-PURPOSE COMPUTER ; GRAPHICS PROCESSING UNITS ; PERFORMANCE ANALYSIS ; GLOBULAR-CLUSTERS ; CORE-COLLAPSE ; SIMULATIONS ; REGULARIZATION ; IMPLEMENTATION ; ALGORITHMS ; GRAPE-6 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20928]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Wang, L,Spurzem, R,Aarseth, S,et al. NBODY6++GPU: ready for the gravitational million-body problem[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,450(4):4070-4080. |
| APA | Wang, L.,Spurzem, R.,Aarseth, S.,Nitadori, K.,Berczik, P.,...&Naab, T.(2015).NBODY6++GPU: ready for the gravitational million-body problem.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,450(4),4070-4080. |
| MLA | Wang, L,et al."NBODY6++GPU: ready for the gravitational million-body problem".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 450.4(2015):4070-4080. |
入库方式： OAI收割
来源：理论物理研究所
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