PetscSectionGetValueLayout#

Get the PetscLayout associated with the section dofs of a PetscSection

Synopsis#

#include "petscsection.h"   
PetscErrorCode PetscSectionGetValueLayout(MPI_Comm comm, PetscSection s, PetscLayout *layout)

Collective

Input Parameters#

comm - The MPI_Comm
s - The PetscSection

Output Parameter#

layout - The dof layout for the section

Notes#

PetscSectionGetPointLayout() provides similar information but only counting the number of points with nonzero degrees of freedom and including the constrained degrees of freedom

This is usually called for the default global section.

Example#

     The chart is [2,5), point 2 has 4 dof (2 constrained), point 3 has 0 dof, point 4 has 1 dof (not constrained)
     The local size of the `PetscLayout` is 3 since there are 3 unconstrained degrees of freedom on this MPI process