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, PetscErrorCode (*func)(SNES snes, Vec x, Vec f, void *ctx), void *ctx)

Logically Collective

Input Parameters#

  • dm - DM to be used with SNES

  • func - residual evaluation function; see SNESFunction for details

  • ctx - optional function context

Calling sequence of func#

  • snes - the solver object

  • x - the input vector

  • f - the output vector

  • ctx - the optional function context

See Also#

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

Level#

advanced

Location#

src/snes/utils/dmsnes.c

Index of all SNES routines
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Index of all manual pages