PetscMPIIntSortSemiOrdered#

Sorts an array of PetscMPIInt in place in increasing order.

Synopsis#

#include "petscsys.h"  
PetscErrorCode PetscMPIIntSortSemiOrdered(PetscInt n, PetscMPIInt arr[])

Not Collective

Input Parameters#

Output Parameter#

  • arr - sorted array of integers

Notes#

If the array is less than 64 entries long PetscSortMPIInt() is automatically used.

This function serves as an alternative to PetscSortMPIInt(). While this function works for any array of PetscMPIInt 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#

PetscTimSort(), PetscSortMPIInt()

Level#

intermediate

Location#

src/sys/utils/sortso.c

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