PetscWeakFormGetJacobian

Retrieve the lists of Jacobian pointwise functions g0, g1, g2, and g3 for a given key from a PetscWeakForm

Synopsis

#include "petscds.h" 
PetscErrorCode PetscWeakFormGetJacobian(PetscWeakForm wf, DMLabel label, PetscInt val, PetscInt f, PetscInt g, PetscInt part, PetscInt *n0, void (***g0)(PetscInt, PetscInt, PetscInt, const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], PetscReal, PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]), PetscInt *n1, void (***g1)(PetscInt, PetscInt, PetscInt, const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], PetscReal, PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]), PetscInt *n2, void (***g2)(PetscInt, PetscInt, PetscInt, const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], PetscReal, PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]), PetscInt *n3, void (***g3)(PetscInt, PetscInt, PetscInt, const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], PetscReal, PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]))

Not Collective

Input Parameters

• wf - The PetscWeakForm

• label - The label selecting the mesh region, or NULL for the entire domain

• val - The label value selecting the mesh region

• f - The test field number

• g - The trial field number

• part - The equation part, or 0 if unused

Output Parameters

• n0 - The number of g0 pointwise functions registered for this key

• g0 - The array of g0 Jacobian pointwise functions

• n1 - The number of g1 pointwise functions registered for this key

• g1 - The array of g1 Jacobian pointwise functions

• n2 - The number of g2 pointwise functions registered for this key

• g2 - The array of g2 Jacobian pointwise functions

• n3 - The number of g3 pointwise functions registered for this key

• g3 - The array of g3 Jacobian pointwise functions

See Also

PetscWeakForm, PetscWeakFormSetJacobian(), PetscWeakFormAddJacobian(), PetscWeakFormHasJacobian(), PetscWeakFormGetJacobianPreconditioner()

Level

intermediate

Location

src/dm/dt/interface/dtweakform.c

---

Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages