A flexible and adaptive Simpler GMRES with deflated restarting for shifted linear systems
A flexible and adaptive Simpler GMRES with deflated restarting for shifted linear systems
复制标题
灵活且自适应的 Simpler GMRES，可针对移位线性系统进行放气重启
DOI：
10.1016/j.camwa.2019.03.017
复制
发表时间：
2019
影响因子：
2.9
通讯作者：
Gu Xian-Ming
中科院分区：
文献类型：
--
作者：
Zhong Hong-Xiu;Gu Xian-Ming
In this paper, two efficient iterative algorithms based on the Simpler GMRES method are proposed for solving shifted linear systems. To make full use of the shifted structure, the proposed algorithms utilizing the deflated restarting strategy and flexible preconditioning can significantly reduce the number of matrix–vector products and the elapsed CPU time. Numerical experiments are reported to illustrate the performance and effectiveness of the proposed algorithms.
