DMSNESSetFunctionLocal#

set a local residual evaluation function. This function is called with local vector containing the local vector information PLUS ghost point information. It should compute a result for all local elements and DMSNES will automatically accumulate the overlapping values.

Synopsis#

#include "petscsnes.h" 
PetscErrorCode DMSNESSetFunctionLocal(DM dm, PetscErrorCode (*func)(DM dm, Vec x, Vec f, void *ctx), void *ctx)

Logically Collective

Input Parameters#

dm - DM to associate callback with
func - local residual evaluation
ctx - optional context for local residual evaluation

Calling sequence of `func`#

dm - DM for the function
x - vector to state at which to evaluate residual
f - vector to hold the function evaluation
ctx - optional context passed above

Level#

advanced

Location#

src/snes/utils/dmlocalsnes.c

Index of all SNES routines
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Index of all manual pages