Block SOR two-stage iterative methods for solution of symmetric positive definite linear systems
Fang Cai, Jie Xiao, Xiang Zhao-hong · 2010
This paper discusses a class of two-stage iterations whose outer iterative methods are the block SOR methods for parallel solution of linear systems. Convergence is showed for symmetric positive definite linear systems, and an approximate optimal relaxation factor is defined for block tridiagonal matrices. The numerical results for Poisson model problem are presented.