DMSNESSetMFFunction

set SNES residual evaluation function used in applying the matrix-free Jacobian with -snes_mf_operator

Synopsis

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

Logically Collective

Input Parameters

• dm - DM to be used with SNES

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

• ctx - optional function context

Note

If not provided then the function provided with SNESSetFunction() is used

See Also

SNES: Nonlinear Solvers, DMSNES, DMSNESSetContext(), SNESSetFunction(), DMSNESSetJacobian(), SNESFunction, DMSNESSetFunction(), 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