petsc-3.7.5 2017-01-01

DMSNESGetObjective

get SNES objective evaluation function

#include "petscsnes.h" 
#include "petscdm.h" 
PetscErrorCode DMSNESGetObjective(DM dm,PetscErrorCode (**obj)(SNES,Vec,PetscReal*,void*),void **ctx)

Not Collective

dm -DM to be used with SNES

	obj	- residual evaluation function; see SNESObjectiveFunction for details
	ctx	- context for residual evaluation

SNESGetFunction() is normally used, but it calls this function internally because the user context is actually associated with the DM.