petsc-3.7.5 2017-01-01

SNESSetObjective

Sets the objective function minimized by some of the SNES linesearch methods.

PetscErrorCode  SNESSetObjective(SNES snes,PetscErrorCode (*obj)(SNES,Vec,PetscReal*,void*),void *ctx)

Logically Collective on SNES

	snes	- the SNES context
	obj	- objective evaluation routine; see SNESObjectiveFunction for details
	ctx	- [optional] user-defined context for private data for the function evaluation routine (may be NULL)

Note: This is not used in the SNESLINESEARCHCP line search.

If not provided then this defaults to the two norm of the function evaluation (set with SNESSetFunction())

SNES, nonlinear, set, objective