Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
| Investigation of highly efficient algorithms for solving linear equations in the discontinuous deformation analysis method | |
| Fu, Xiaodong; Sheng, Qian; Zhang, Yonghui; Chen, Jian | |
| 2016 | |
| 发表期刊 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| ISSN | 0363-9061 |
| 卷号 | 40期号:4页码:469-486 |
| 摘要 | Large-scale engineering computing using the discontinuous deformation analysis (DDA) method is time-consuming, which hinders the application of the DDA method. The simulation result of a typical numerical example indicates that the linear equation solver is a key factor that affects the efficiency of the DDA method. In this paper, highly efficient algorithms for solving linear equations are investigated, and two modifications of the DDA programme are presented. The first modification is a linear equation solver with high efficiency. The block Jacobi (BJ) iterative method and the block conjugate gradient with Jacobi pre-processing (Jacobi-PCG) iterative method are introduced, and the key operations are detailed, including the matrix-vector product and the diagonal matrix inversion. Another modification consists of a parallel linear equation solver, which is separately constructed based on the multi-thread and CPU-GPU heterogeneous platforms with OpenMP and CUDA, respectively. The simulation results from several numerical examples using the modified DDA programme demonstrate that the Jacobi-PCG is a better iterative method for large-scale engineering computing and that adoptive parallel strategies can greatly enhance computational efficiency. Copyright (c) 2015 John Wiley & Sons, Ltd. |
| 关键词 | discontinuous deformation analysis (DDA) linear equation solver parallel computing OpenMP CPU-GPU |
| DOI | 10.1002/nag.2407 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| WOS类目 | Engineering, Geological ; Materials Science, Multidisciplinary ; Mechanics |
| WOS记录号 | WOS:000370038600001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.198/handle/2S6PX9GI/3825 |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 第一作者单位 | 中科院武汉岩土力学所 |
| 推荐引用方式 GB/T 7714 | Fu, Xiaodong,Sheng, Qian,Zhang, Yonghui,et al. Investigation of highly efficient algorithms for solving linear equations in the discontinuous deformation analysis method[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2016,40(4):469-486. |
| APA | Fu, Xiaodong,Sheng, Qian,Zhang, Yonghui,&Chen, Jian.(2016).Investigation of highly efficient algorithms for solving linear equations in the discontinuous deformation analysis method.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,40(4),469-486. |
| MLA | Fu, Xiaodong,et al."Investigation of highly efficient algorithms for solving linear equations in the discontinuous deformation analysis method".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 40.4(2016):469-486. |
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