PCGAMGSetEigenvalues

Set WHAT eigenvalues WHY?

Synopsis

#include "petscpc.h" 
#include "petscksp.h" 
PetscErrorCode PCGAMGSetEigenvalues(PC pc, PetscReal emax, PetscReal emin)

Collective

Input Parameters

• pc - the preconditioner context

• emax - max eigenvalue

• emin - min eigenvalue

Options Database Key

• -pc_gamg_eigenvalues <emin,emax> - estimates of the eigenvalues

See Also

PCGAMG, PCGAMGSetUseSAEstEig()

Level

intermediate

Location

src/ksp/pc/impls/gamg/gamg.c

Implementations

PCGAMGSetEigenvalues_GAMG in src/ksp/pc/impls/gamg/gamg.c

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