PETSc version 3.17.4
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# 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,Vec,Vec,void*),void *ctx)

Logically Collective

### Input Parameters

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

### See Also

DMSNESSetFunction(), DMDASNESSetJacobianLocal(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d()

### Level

beginner

### Location

src/snes/utils/dmlocalsnes.c
Index of all SNES routines
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