PCPatchSetComputeFunction#
Set the callback function used to compute patch residuals
Synopsis#
#include "petscpc.h" 
#include "petscmat.h" 
PetscErrorCode PCPatchSetComputeFunction(PC pc, PetscErrorCode (*func)(PC pc, PetscInt point, Vec x, Vec f, IS cellIS, PetscInt n, const PetscInt *dofsArray, const PetscInt *dofsArrayWithAll, void *ctx), void *ctx)
Logically Collective
Input Parameters#
- pc - The - PC
- func - The callback function 
- ctx - The user context 
Calling sequence of func#
- pc - The - PC
- point - The point 
- x - The input solution (not used in linear problems) 
- f - The patch residual vector 
- cellIS - An array of the cell numbers 
- n - The size of - dofsArray
- dofsArray - The dofmap for the dofs to be solved for 
- dofsArrayWithAll - The dofmap for all dofs on the patch 
- ctx - The user context 
Note#
The entries of f (the output residual vector) have been set to zero before the call.
See Also#
KSP: Linear System Solvers, PCPatchSetComputeOperator(), PCPatchGetComputeOperator(), PCPatchSetDiscretisationInfo(), PCPatchSetComputeFunctionInteriorFacets()
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