DMSNESComputeJacobianAction#

Compute the action of the Jacobian J(X) on Y

Synopsis#

#include "petscdmplex.h" 
#include "petscsnes.h"   
PetscErrorCode DMSNESComputeJacobianAction(DM dm, Vec X, Vec Y, Vec F, void *user)

Input Parameters#

  • dm - The DM

  • X - Local solution vector

  • Y - Local input vector

  • user - The user context

Output Parameter#

  • F - local output vector

Note#

Users will typically use DMSNESCreateJacobianMF() followed by MatMult() instead of calling this routine directly.

This only works with DMPLEX

Developer Note#

This should be called DMPlexSNESComputeJacobianAction()

See Also#

SNES: Nonlinear Solvers, DM, ``DMSNESCreateJacobianMF(), DMPlexSNESComputeResidualFEM()`

Level#

developer

Location#

src/snes/utils/dmplexsnes.c


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