petsc-3.12.5 2020-03-29

VecTaggerComputeBoxes

If the tagged index set can be summarized as a list of boxes of values, returns that list

Synopsis

#include "petscvec.h" 
PetscErrorCode VecTaggerComputeBoxes(VecTagger tagger,Vec vec,PetscInt *numBoxes,VecTaggerBox **boxes)

Collective on VecTagger

Input Aguments

	tagger	- the VecTagger context
	vec	- the vec to tag

Output Arguments

	numBoxes	- the number of boxes in the tag definition
	boxes	- a newly allocated list of boxes. This is a flat array of (BlockSize * numBoxes) pairs that the user can free with PetscFree().

Notes

A value is tagged if it is in any of the boxes, unless the tagger has been inverted (see VecTaggerSetInvert()/VecTaggerGetInvert()), in which case a value is tagged if it is in none of the boxes. -

Level

advanced

Location

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

Examples

src/vec/vec/utils/tagger/examples/tutorials/ex1.c.html

Implementations