DMSNESSetFunction

set SNES residual evaluation function

Synopsis

#include "petscsnes.h" 
#include "petscdm.h" 
PetscErrorCode DMSNESSetFunction(DM dm, SNESFunctionFn *f, void *ctx)

Not Collective

Input Parameters

• dm - DM to be used with SNES

• f - residual evaluation function; see SNESFunctionFn for calling sequence

• ctx - 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(), SNESFunctionFn

Level

developer

Location

src/snes/utils/dmsnes.c

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Index of all SNES routines
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Index of all manual pages