KSPGuessSetTolerance#

Sets the relative tolerance used in either eigenvalue (POD) or singular value (Fischer type 3) calculations. Ignored by the first and second Fischer types.

Synopsis#

#include "petscksp.h"  
PetscErrorCode KSPGuessSetTolerance(KSPGuess guess, PetscReal tol)

Collective

Input Parameter#

See Also#

KSP: Linear System Solvers, KSPGuess, KSPGuessType, KSPGuessSetFromOptions()

Level#

developer

Location#

src/ksp/ksp/interface/iguess.c

Implementations#

KSPGuessSetTolerance_Fischer in src/ksp/ksp/guess/impls/fischer/fischer.c
KSPGuessSetTolerance_POD in src/ksp/ksp/guess/impls/pod/pod.c

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