Large-scale parallelization based on CPU and GPU cluster for cosmological fluid simulations
文献类型：期刊论文
| 作者 | Meng, Chen1,2; Wang, Long1; Cao, Zongyan1,3 ; Feng, Long-long4; Zhu, Weishan4
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| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2015-03-30 |
| 卷号 | 110页码:152-158 |
| 关键词 | Cosmological hydrodynamics WENO GPU Hierarchical memory Heterogeneous Large-scale |
| 英文摘要 | We present our parallel implementation for large-scale cosmological simulations of 3D supersonic fluids based on CPU and GPU clusters. Our developments are based on a CPU code named WIGEON. It is shown that, compared to the original sequential Fortran code, a speedup of 19-31 (depending on the specific GPU card) can be achieved on single GPU. Furthermore, our results show that the pure MPI parallelization scales very well up to 10 thousand CPU cores. In addition, a hybrid CPU/GPU parallelization scheme is introduced and a detailed analysis of the speedup and the scaling on the different number of CPU/GPU units are presented (up to 256 GPU cards due to computing resource limitation). Our high scalability and speedup rely on the domain decomposition approach, optimization of the algorithm and a series of techniques to optimize the CUDA implementation, especially in the memory access pattern on CPU. We believe this hybrid MPI + CUDA code can be an excellent candidate for 10 Peta-scale computing and beyond. (C) 2014 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350535100016 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5735]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Supercomp Ctr, Comp Network Informat Ctr, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Chen,Wang, Long,Cao, Zongyan,et al. Large-scale parallelization based on CPU and GPU cluster for cosmological fluid simulations[J]. COMPUTERS & FLUIDS,2015,110:152-158. |
| APA | Meng, Chen,Wang, Long,Cao, Zongyan,Feng, Long-long,&Zhu, Weishan.(2015).Large-scale parallelization based on CPU and GPU cluster for cosmological fluid simulations.COMPUTERS & FLUIDS,110,152-158. |
| MLA | Meng, Chen,et al."Large-scale parallelization based on CPU and GPU cluster for cosmological fluid simulations".COMPUTERS & FLUIDS 110(2015):152-158. |
入库方式： OAI收割
来源：国家天文台
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