PetscSectionSetPermutation

Sets a permutation of the chart for this section, [0, pEnd - pStart), which determines the order to store the PetscSection information

Synopsis

#include "petscsection.h"   
PetscErrorCode PetscSectionSetPermutation(PetscSection s, IS perm)

Not Collective

Input Parameters

• s - the PetscSection

• perm - the permutation of points

Notes

The permutation must be provided before PetscSectionSetUp().

The data in the PetscSection are permuted but the access via PetscSectionGetFieldOffset() and PetscSectionGetOffset() is not changed

Compare to PetscSectionPermute()

See Also

Low-level Vector Communication, IS, PetscSection, PetscSectionSetUp(), PetscSectionGetPermutation(), PetscSectionPermute(), PetscSectionCreate()

Level

intermediate

Location

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

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