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

Notes#

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

See Also#

DM, ``DMSNESCreateJacobianMF(), DMPlexSNESComputeResidualFEM()`

Level#

developer

Location#

src/snes/utils/dmplexsnes.c

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