petsc3.15.0 20210405
VecWhichEqual
Creates an index set containing the indices where the vectors Vec1 and Vec2 have identical elements.
Synopsis
#include "petscvec.h"
PetscErrorCode VecWhichEqual(Vec Vec1, Vec Vec2, IS *S)
Collective on Vec
Input Parameters
 Vec1, Vec2   the two vectors to compare

OutputParameter
 S   The index set containing the indices i where vec1[i] == vec2[i]

Notes
the two vectors must have the same parallel layout
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