| Preconditioned method in parallel computation |
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| 引用本文： | Wu Ruichan & Wei Jianing School of Science,Wuhan Univ. of Technology,Wuhan 430063,P. R. China. Preconditioned method in parallel computation[J]. 系统工程与电子技术(英文版), 2006, 17(1): 220-222. DOI: 10.1016/S1004-4132(06)60038-8 |
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| 作者姓名： | Wu Ruichan & Wei Jianing School of Science Wuhan Univ. of Technology Wuhan 430063 P. R. China |
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| 作者单位： | Wu Ruichan & Wei Jianing School of Science，Wuhan Univ. of Technology，Wuhan 430063，P. R. China |
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| 摘 要： | 1.INTRODUCTIONDecreasing the ti mes of communication andincreasingthe rate of it in the whole domain is very i mportantfor i mproving the rate of parallel computation in de-composed domain.Preconditioned technology hasbeen used widelyin this area[1]because it can changethe mode of communication andi mprove the topologi-cal configuration.Orthogonalization is a perfect pre-conditionedtechnology,but it isi mpossibleto orthog-onalize entirely for the large workload of computationand effect of …
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| 收稿时间： | 2004-12-28 |
Preconditioned method in parallel computation |
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| Wu Ruichan,Wei Jianing. Preconditioned method in parallel computation[J]. Journal of Systems Engineering and Electronics, 2006, 17(1): 220-222. DOI: 10.1016/S1004-4132(06)60038-8 |
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| Authors: | Wu Ruichan Wei Jianing |
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| Affiliation: | School of Science, Wuhan Univ. of Technology, Wuhan 430063, P. R. China |
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| Abstract: | The grid equations in decomposed domain by parallel computation are soled, and a method of local orthogonalization to solve the large-scaled numerical computation is presented. It constructs preconditioned iteration matrix by the combination of predigesting LU decomposition and local orthogonalization, and the convergence of solution is proved. Indicated from the example, this algorithm can increase the rate of computation efficiently and it is quite stable. |
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| Keywords: | grid equations parallel computation precondition LU decomposition local orthogonalization |
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