PCSetPreSolve#

Sets function used by PCPreSolve() which is intended for any preconditioner-specific actions that must be performed before the iterative solve itself.

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCSetPreSolve(PC pc, PetscErrorCode (*presolve)(PC pc, KSP ksp))

Logically Collective

Input Parameters#

  • pc - the preconditioner object

  • presolve - the function to call before the solve

Calling sequence of presolve#

  • pc - the PC context

  • ksp - the KSP context

See Also#

KSP: Linear System Solvers, PC, PCSetUp(), PCPreSolve()

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