petsc-master 2019-08-18
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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 - replaces global indices with no local value with -1 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

src/vec/is/utils/isltog.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages