PETSc version 3.15.5
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 Arguments
|  | 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
Table of Contents for all manual pages
Index of all manual pages