PetscMPIIntSortSemiOrderedWithArray#
Sorts an array of PetscMPIInt in place in increasing order and reorders a second PetscMPIInt array to match the first.
Synopsis#
#include "petscsys.h"
PetscErrorCode PetscMPIIntSortSemiOrderedWithArray(PetscInt n, PetscMPIInt arr1[], PetscMPIInt arr2[])
Not Collective
Input Parameter#
n - number of values
Input/Output Parameters#
arr1 - array of integers to be sorted, modified on output
arr2 - array of integers to be reordered, modified on output
Notes#
The arrays CANNOT overlap.
This function serves as an alternative to PetscSortMPIIntWithArray(). While this function works for any array of integers it is
significantly faster if the array is not totally random. There are exceptions to this and so it is highly
recommended that the user benchmark their code to see which routine is fastest.
See Also#
PetscTimSortWithArray(), PetscSortMPIIntWithArray(), PetscSortMPIIntWithPermutation()
Level#
intermediate
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages