PetscSortIntWithIntCountArrayPair#
Sorts an array of PetscInt in place in increasing order; changes a PetscInt array and a PetscCount array to match the sorted first array.
Synopsis#
#include "petscsys.h"
PetscErrorCode PetscSortIntWithIntCountArrayPair(PetscCount n, PetscInt X[], PetscInt Y[], PetscCount Z[])
Not Collective
Input Parameters#
n - number of values
X - array of integers
Y - second array of integers (first array of the pair)
Z - third array of PetscCounts (second array of the pair)
Note#
Usually X, Y are matrix row/column indices, and Z is a permutation array and therefore Z’s type is PetscCount to allow 2B+ nonzeros even with 32-bit PetscInt.
See Also#
PetscSortReal(), PetscSortIntPermutation(), PetscSortIntWithArray(), PetscIntSortSemiOrdered(), PetscSortIntWithArrayPair()
Level#
intermediate
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages