PCPatchSetComputeOperator

Set the callback function used to compute patch matrices

Synopsis

#include "petscpc.h" 
#include "petscmat.h" 
PetscErrorCode PCPatchSetComputeOperator(PC pc, PetscErrorCode (*func)(PC pc, PetscInt point, Vec x, Mat mat, 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)

• mat - The patch matrix

• facetIS - 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 matrix entries have been set to zero before the call.

See Also

KSP: Linear System Solvers, PCPatchGetComputeOperator(), PCPatchSetComputeFunction(), PCPatchSetDiscretisationInfo()

Level

advanced

Location

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

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Index of all PC routines
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