ISSetIdentity#
Informs the index set that it is an identity.
Synopsis#
#include "petscis.h"
PetscErrorCode ISSetIdentity(IS is)
Logically Collective
Input Parameter#
is - the index set
Notes#
is will be considered the identity permanently, even if indices have been changes (for example, with
ISGeneralSetIndices()). It’s a good idea to only set this property if is will not change in the future.
To clear this property, use ISClearInfoCache().
Developer Note#
Some of these info routines have statements about values changing in the IS, this seems to contradict the fact that IS cannot be changed?
See Also#
IS, ISIdentity(), ISSetInfo(), ISClearInfoCache()
Level#
intermediate
Location#
src/vec/is/is/interface/index.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages