KSPFCGGetMmax

get the maximum number of previous directions KSPFCG will store

Synopsis

#include "petscksp.h"  
PetscErrorCode KSPFCGGetMmax(KSP ksp, PetscInt *mmax)

Not Collective

Input Parameter

• ksp - the Krylov space context

Output Parameter

• mmax - the maximum number of previous directions allowed for orthogonalization

Note

FCG stores mmax+1 directions at most (mmax previous ones, and one current one)

See Also

KSP: Linear System Solvers, KSPFCG, KSPFCGGetTruncationType(), KSPFCGGetNprealloc(), KSPFCGSetMmax()

Level

intermediate

Location

src/ksp/ksp/impls/fcg/fcg.c

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