petsc-3.14.5 2021-03-03
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# PetscDSHasJacobianPreconditioner

Signals that a Jacobian preconditioner matrix has been set

### Synopsis

    #include "petscds.h"
    PetscErrorCode PetscDSHasJacobianPreconditioner(PetscDS prob, PetscBool *hasJacPre)

Not collective

### Input Parameter

| prob | - The PetscDS

### Output Parameter

| hasJacPre | - flag that pointwise function for Jacobian preconditioner matrix has been set

### See Also

PetscDSGetJacobianPreconditioner(), PetscDSSetJacobianPreconditioner(), PetscDSGetJacobian()

### Level

intermediate

### Location

src/dm/dt/interface/dtds.c
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages