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.
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页码：479 / 488
页数：10
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