DMPlexComputeJacobianByKey#

Compute the local Jacobian for terms matching the input key

Synopsis#

#include "petscdmplex.h"   
PetscErrorCode DMPlexComputeJacobianByKey(DM dm, PetscFormKey key, IS cellIS, PetscReal t, PetscReal X_tShift, Vec locX, Vec locX_t, Mat Jac, Mat JacP, void *user)

Collective

Input Parameters#

dm - The output DM
key - The PetscFormKey indicating what should be integrated
cellIS - The IS give a set of cells to integrate over
t - The time
X_tShift - The multiplier for the Jacobian with respect to \(X_t\)
locX - The local solution
locX_t - The time derivative of the local solution, or NULL for time-independent problems
user - An optional user context, passed to the pointwise functions

Output Parameters#

Jac - The local Jacobian
JacP - The local Jacobian preconditioner

See Also#

DMPlexComputeResidualByKey(), DMPlexComputeResidualHybridByKey(), DMPlexComputeJacobianHybridByKey(), PetscFormKey

Level#

developer

Location#

src/dm/impls/plex/plexfem.c

Index of all DMPlex routines
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Index of all manual pages