| 区域分解并行有限元计算方法研究 |
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| 引用本文： | 茹忠亮,叶亚齐,赵洪波.区域分解并行有限元计算方法研究[J].焦作工学院学报,2007,26(2):198-201. |
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| 作者姓名： | 茹忠亮 叶亚齐 赵洪波 |
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| 作者单位： | 河南理工大学土木工程学院,河南焦作454003 |
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| 基金项目： | 河南省自然科学基金资助项目（0611010600）;河南理工大学博士基金资助项目（648508） |
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| 摘 要： | 按照区域分解算法“分而治之”的思想,研究了在普通PC机群上实现大规模并行有限元计算的方法.针对PC机群的特点,有限元计算数据采用分布式存储策略,方程组的求解采用并行预处理共轭梯度算法.采用C++语言及MPI消息传递接口开发了基于PC机群的并行有限元计算程序,利用6台计算机对247871个单元的有限元模型进行了并行求解,并行加速比达到5.26.验证了程序的可靠性和高效性.
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| 关 键 词： | 区域分解 并行有限元 计算方法 PC机群 |
| 文章编号： | 1673-9787（2007）02-0198-04 |
| 收稿时间： | 2006-06-12 |
Study on Parallel Finite Element Method Based on Domain Decomposed Method |
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| RU Zhong-liang, YE Ya-qi, ZHAO Hong-bo.Study on Parallel Finite Element Method Based on Domain Decomposed Method[J].Journal of Jiaozuo Institute of Technology(Natural Science),2007,26(2):198-201. |
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| Authors: | RU Zhong-liang YE Ya-qi ZHAO Hong-bo |
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| Abstract: | According to domain decomposed method and its 'Divide and conquer' strategy,a PC cluster on Windows operating system was built up,and the implement of large-scale parallel FEM was investigated on it.The FEM data is stored through distributed form,and FEM equations are solved by using the parallel preconditioned conjugate gradient method.A parallel FEM program on PC cluster was developed by using C+ and MPI,and then a 3D FEM model with 247 871elements has been analysis by the program.Its parallel speeding-up was 5.32 with 6 CPUs.The results show that the parallel algorithm is robust and high efficient in PC cluster environment. |
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| Keywords: | domain decomposed method parallel finite element method calculating method PC cluster |
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