SNESPatchSetComputeFunction#

Set the callback used to compute the per-patch nonlinear residual for a SNESPATCH solver

Synopsis#

#include "petscsnes.h" 
PetscErrorCode SNESPatchSetComputeFunction(SNES snes, PetscErrorCode (*func)(PC pc, PetscInt point, Vec x, Vec f, IS cellIS, PetscInt n, const PetscInt *dofsArray, const PetscInt *dofsArrayWithAll, PetscCtx ctx), PetscCtx ctx)

Logically Collective

Input Parameters#

snes - the SNESPATCH solver
func - callback that computes the patch residual; forwarded to the underlying PCPATCH via PCPatchSetComputeFunction()
ctx - optional application context passed to func

Calling sequence of `func`#

pc - the PC associated with the SNESPATCH solver
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 application context

See Also#

SNES: Nonlinear Solvers, SNESPATCH, PCPATCH, PCPatchSetComputeFunction(), SNESPatchSetComputeOperator()

Level#

advanced

Location#

src/snes/impls/patch/snespatch.c

Index of all SNES routines
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Index of all manual pages