PCPatchSetComputeFunctionInteriorFacets#

Set the callback function used to compute facet integrals for patch residuals

Synopsis#

#include "petscpc.h" 
#include "petscmat.h" 
PetscErrorCode PCPatchSetComputeFunctionInteriorFacets(PC pc, PetscErrorCode (*func)(PC pc, PetscInt point, Vec x, Vec f, IS facetIS, 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

  • facetIS - An array of the facet 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(), PCPatchSetComputeFunction()

Level#

advanced

Location#

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

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