petsc-3.9.4 2018-09-11
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KSPGetInitialGuessKnoll

 Determines whether the KSP solver is using the Knoll trick (using PCApply(pc,b,...) to compute the initial guess

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPGetInitialGuessKnoll(KSP ksp,PetscBool  *flag)
Not Collective

Input Parameter

ksp -iterative context obtained from KSPCreate()

Output Parameter

flag -PETSC_TRUE if using Knoll trick, else PETSC_FALSE

Keywords

set, initial guess, nonzero

See Also

KSPSetInitialGuessKnoll(), KSPSetInitialGuessNonzero(), KSPGetInitialGuessNonzero(), KSP

Level

advanced

Location

src/ksp/ksp/interface/itfunc.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages