petsc-3.13.6 2020-09-29
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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