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Preconditioned method in parallel computation
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作者 Wu Ruichan Wei Jianing 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第1期220-222,共3页
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 m... 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. 展开更多
关键词 grid equations parallel computation precondition lu decomposition local orthogonalization.
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网格方程组预处理方法研究
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作者 武瑞婵 《襄樊学院学报》 2008年第5期10-12,共3页
对网格方程组作区域分裂并行计算,应用谱等价性质讨论了变换在预条件迭代中的作用.将近似LU分解与局部正交化方法相结合构造预处理矩阵,并通过算例证明了这种方法的有效性.
关键词 网格方程组 并行计算 预条件 谱等价 lu分解 局部正交化
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