petsc-3.6.1 2015-08-06
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SNESSetObjective

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

Synopsis

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

Input Parameters

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())

Keywords

SNES, nonlinear, set, objective

See Also

SNESGetObjective(), SNESComputeObjective(), SNESSetFunction(), SNESSetJacobian(), SNESObjectiveFunction

Level:intermediate
Location:src/snes/interface/snesob.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages