FGMRES - Flexible Generalized Minimal Residual method.

Usage:

-ksp_type fgmres

Options:

-ksp_fgmres_modifypcnochange

do not change the preconditioner between iterations

-ksp_fgmres_modifypcksp

modify the preconditioner using KSPFGMRESModifyPCKSP

Back to Main Page