petsc-3.10.5 2019-03-28
VecWhichInactive
Creates an index set containing the indices where one of the following holds: a) VecLow(i) < V(i) < VecHigh(i) b) VecLow(i) = V(i) and D(i) <= 0 (< 0 when Strong is true) c) VecHigh(i) = V(i) and D(i) >= 0 (> 0 when Strong is true)
Synopsis
#include "petscvec.h"
PetscErrorCode VecWhichInactive(Vec VecLow, Vec V, Vec D, Vec VecHigh, PetscBool Strong, IS * S)
Collective on S
Input Parameters
| VecLow | - lower bound
|
| V | - Vector to compare
|
| D | - Direction to compare
|
| VecHigh | - higher bound
|
| Strong | - indicator for applying strongly inactive test
|
OutputParameter
S -The index set containing the indices i where the bound is inactive
Level
advanced
Location
src/vec/vec/utils/projection.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages