VecTaggerComputeIS#

Use a VecTagger context to tag a set of indices based on a vector’s values

Synopsis#

#include "petscvec.h" 
PetscErrorCode VecTaggerComputeIS(VecTagger tagger, Vec vec, IS is[], PetscBool *listed)

Collective

Input Parameters#

tagger - the VecTagger context
vec - the vec to tag

Output Parameters#

is - a list of the indices tagged by the tagger, i.e., if the number of local indices will be n / bs, where n is VecGetLocalSize() and bs is VecTaggerGetBlockSize().
listed - routine was able to compute the IS, pass in NULL if not needed

See Also#

VecTaggerComputeBoxes(), VecTagger, VecTaggerCreate()

Level#

advanced

Location#

src/vec/vec/utils/tagger/interface/tagger.c

Examples#

src/snes/tutorials/ex27.c
src/ts/tutorials/ex11.c
src/ts/tutorials/ex30.c
src/vec/vec/utils/tagger/tutorials/ex1.c

Implementations#

VecTaggerComputeIS_And() in src/vec/vec/utils/tagger/impls/and.c
VecTaggerComputeIS_Or() in src/vec/vec/utils/tagger/impls/or.c

Index of all Vec routines
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Index of all manual pages