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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