petsc-3.6.4 2016-04-12
PCGetInitialGuessNonzero
Determines if the iterative solver assumes that the initial guess is nonzero; otherwise PC assumes the initial guess is to be zero (and thus zeros it out before solving).
Synopsis
#include "petscksp.h"
PetscErrorCode PCGetInitialGuessNonzero(PC pc,PetscBool *flg)
Logically Collective on PC
Input Parameter
pc -iterative context obtained from PCCreate()
Output Parameter
flg -PETSC_TRUE indicates the guess is non-zero, PETSC_FALSE indicates the guess is zero
Keywords
PC, set, initial guess, nonzero
See Also
PCGetInitialGuessNonzero(), PCSetInitialGuessKnoll(), PCGetInitialGuessKnoll(), PCSetInitialGuessNonzero()
Level:Developer
Location:src/ksp/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages