PetscDSGetObjective

Get the pointwise objective function for a given test field that was provided with PetscDSSetObjective()

Synopsis

#include "petscds.h" 
PetscErrorCode PetscDSGetObjective(PetscDS ds, PetscInt f, PetscPointFn **obj)

Not Collective

Input Parameters

• ds - The PetscDS

• f - The test field number

Output Parameter

• obj - integrand for the test function term, see PetscPointFn

Note

We are using a first order FEM model for the weak form: \( \int_\Omega \phi\,\mathrm{obj}(u, u_t, \nabla u, x, t)\)

See Also

PetscPointFn, PetscDS, PetscDSSetObjective(), PetscDSGetResidual()

Level

intermediate

Location

src/dm/dt/interface/dtds.c

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