ISGlobalToLocalMappingApplyIS#
Creates from an IS in the global numbering a new index set using the local numbering defined in an ISLocalToGlobalMapping context.
Synopsis#
#include "petscis.h"
PetscErrorCode ISGlobalToLocalMappingApplyIS(ISLocalToGlobalMapping mapping, ISGlobalToLocalMappingMode type, IS is, IS *newis)
Not collective
Input Parameters#
mapping - mapping between local and global numbering
type - IS_GTOLM_MASK - maps global indices with no local value to -1 in the output list (i.e., mask them) IS_GTOLM_DROP - drops the indices with no local value from the output list
is - index set in global numbering
Output Parameters#
newis - index set in local numbering
Notes#
The output IS will be sequential, as it encodes a purely local operation
See Also#
ISGlobalToLocalMappingApply()
, ISLocalToGlobalMappingCreate()
,
ISLocalToGlobalMappingDestroy()
Level#
advanced
Location#
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages