petsc-3.10.2 2018-10-09
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KSPPIPEFCGGetMmax

get the maximum number of previous directions PIPEFCG will store

Synopsis

#include "petscksp.h"  
PetscErrorCode KSPPIPEFCGGetMmax(KSP ksp,PetscInt *mmax)
Note: PIPEFCG stores mmax+1 directions at most (mmax previous ones, and the current one)

Not Collective

Input Parameter

ksp -the Krylov space context

Output Parameter

mmax -the maximum number of previous directons allowed for orthogonalization

Options Database

-ksp_pipefcg_mmax <N> -

Keywords

KSP, PIPEFCG, truncation

See Also

KSPPIPEFCG, KSPPIPEFCGGetTruncationType(), KSPPIPEFCGGetNprealloc(), KSPPIPEFCGSetMmax()

Level

intermediate

Location

src/ksp/ksp/impls/fcg/pipefcg/pipefcg.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages