PCPatchSetConstructType#

Set the way patches are constructed for a PCPATCH preconditioner

Synopsis#

#include "petscpc.h" 
#include "petscmat.h" 
PetscErrorCode PCPatchSetConstructType(PC pc, PCPatchConstructType ctype, PetscErrorCode (*func)(PC pc, PetscInt *npatch, IS *patches[], IS *patchIterationSet, PetscCtx ctx), PetscCtx ctx)

Logically Collective

Input Parameters#

pc - the PCPATCH preconditioner
ctype - the PCPatchConstructType selecting the patch construction strategy (e.g. PC_PATCH_STAR, PC_PATCH_VANKA, PC_PATCH_PARDECOMP, PC_PATCH_USER, PC_PATCH_PYTHON)
func - user callback that builds the patches, used only when ctype is PC_PATCH_USER or PC_PATCH_PYTHON; may be NULL otherwise
ctx - optional application context passed to func

Calling sequence of `func`#

pc - the PCPATCH preconditioner
npatch - number of patches
patches - the IS that define each patch
patchIterationSet - how the patches are iterated over
ctx - optional application context

See Also#

KSP: Linear System Solvers, PCPATCH, PCPatchGetConstructType(), PCPatchConstructType

Level#

advanced

Location#

src/ksp/pc/impls/patch/pcpatch.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages