MR-CGS:一种最小剩余CGS方法在DDM求解中的应用

MR-CGS:A Minimal Residual CGS Method and Its Application in DDM

从 CGS方法入手 ,针对该算法在收敛过程中出现的残差不平稳的缺点 ,对 CGS算法进行改进 ,给出了一种最小残差 CGS(MR- CGS)算法 .算例给出了该改进算法在求解

Due to the instability of the residuals aroused in the conjugate gradient square method, we present a new method named MR CGS, which has the minimal residual property while retaining the square converging property. Finally, an example is given to exhibit the application of the improved algorithm in solving the DDM model.