PetscSectionGetOffset#

Return the offset into an array or Vec for the dof associated with the given point.

Synopsis#

#include "petscsection.h"   
PetscErrorCode PetscSectionGetOffset(PetscSection s, PetscInt point, PetscInt *offset)

Not Collective

Input Parameters#

Output Parameter#

  • offset - the offset

Notes#

In a global section, this offset will be negative for points not owned by this process.

This is for the unnamed default field in the PetscSection not the named fields

The offset values are different depending on a value set with PetscSectionSetPointMajor()

See Also#

PetscSection, PetscSection, PetscSectionGetFieldOffset(), PetscSectionCreate(), PetscSectionSetPointMajor()

Level#

intermediate

Location#

src/vec/is/section/interface/section.c

Examples#

src/snes/tutorials/ex13.c
src/snes/tutorials/ex7.c
src/tao/tutorials/ex3.c

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