s - the
PetscSectionobject to view
v - the viewer
PetscSectionView(), when viewer is of type
PETSCVIEWERHDF5, only saves
distribution independent data, such as dofs, offsets, constraint dofs,
and constraint indices. Points that have negative dofs, for instance,
are not saved as they represent points owned by other processes.
Point numbering and rank assignment is currently not stored.
The saved section can be loaded with