Preconditioning Iterative Substructuring Methods Using Inexact Local Solvers

被引：0

作者：

Krzyzanowski, Piotr ^{[1
]}

机构：

[1] Univ Warsaw, Inst Appl Math, PL-02097 Warsaw, Poland

来源：

PARALLEL PROCESSING AND APPLIED MATHEMATICS (PPAM 2013), PT II | 2014年 / 8385卷

关键词：

Preconditioning; Iterative substructuring; Domain decomposition; Block preconditioner; DOMAIN DECOMPOSITION METHOD; ELLIPTIC PROBLEMS; ALGORITHMS;

D O I：

10.1007/978-3-642-55195-6_45

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We consider several block preconditioners for iterative substructuring algorithms with inexact subdomain solvers, including incomplete Cholesky and V-cycle multigrid. Numerical results show that block triangular preconditioners are very competitive and in certain cases outperform presently used preconditioners based on full block triangular decomposition.

引用

页码：479 / 488

页数：10

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