Polynomial preconditioners based on factorized sparse approximate inverses
The authors propose an additive polynomial preconditioner for solving linear systems with the conjugate gradient method based on multisplitting, which is obtained by computing some factorized sparse approximate inverses of the coefficient matrix. Numerical experiments on structural analysis and transport/diffusion problems are presented. The effect of the reverse Cuthill-McKee and multiple minimum degree orderings is also evaluated.
scientific article; zbMATH DE number 1861247
scientific article