Parallel subdomain solver strategies for the algebraic additive Schwarz preconditioner
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- 作者：Radu Popescua ; Michael A. Herouxb ; Simone Deparis ; a ; simone.deparis@epfl.ch" class="auth_mail" title="E-mail the corresponding author
- 关键词：Partial differential equations ; Finite element method ; Parallel preconditioners ; Algebraic Schwarz preconditioner ; Hybrid preconditioners ; Hybrid ShyLU preconditioner
- 刊名：Parallel Computing
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：57
- 期：Complete
- 页码：137-153
- 全文大小：975 K
文摘
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Hybrid domain-decomposition method with two levels of domain partitioning.
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Solution of the local problem by ShyLU or other parallel approximation techniques.
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Proposal of an inexact QR factorization to be used within ShyLU.
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Comparisons of parallel performances between UMFPACK, ShyLU, and inexact QR.