DMSNESSetFunction#
set SNES residual evaluation function
Synopsis#
#include "petscsnes.h"
#include "petscdm.h"
PetscErrorCode DMSNESSetFunction(DM dm, PetscErrorCode (*f)(SNES, Vec, Vec, void *), void *ctx)
Not Collective
Input Parameters#
dm - DM to be used with
SNESf - residual evaluation function; see
SNESFunctionfor detailsctx - context for residual evaluation
Note#
SNESSetFunction() is normally used, but it calls this function internally because the user context is actually
associated with the DM. This makes the interface consistent regardless of whether the user interacts with a DM or
not.
Developer Note#
If DM took a more central role at some later date, this could become the primary method of setting the residual.
See Also#
SNES: Nonlinear Solvers, DMSNES, DMSNESSetContext(), SNESSetFunction(), DMSNESSetJacobian(), SNESFunction
Level#
advanced
Location#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages