Parallel preconditioners for large scale partial difference equation systems
Parallel preconditioners for large scale partial difference equation systems
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DOI：
10.1016/j.cam.2008.05.039
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发表时间：
2009-04
影响因子：
2.4
通讯作者：
Jiachang Sun;Jianwen Cao;Chao Yang
中科院分区：
文献类型：
--
作者：
Jiachang Sun;Jianwen Cao;Chao Yang
我们提出了一个新的预条件DASP（离散近似谱预条件），根据现有的知名预条件和我们的计算经验。研究了由偏微分方程产生的大规模偏差分方程组的并行预处理策略。数值结果表明，新的预处理器的效率和有效性的模型问题和真实的应用在石油储层模拟。
We propose a new preconditioner DASP (discrete approximate spectral preconditioner), based on the existing well-known preconditioners and our computational experience. Parallel preconditioning strategies for large scale partial difference equation systems arising from partial differential equations are investigated. Numerical results are given to show the efficiency and effectiveness of the new preconditioners for both model problems and real applications in petroleum reservoir simulation.