PetscSortRealWithPermutation

Computes the permutation of PetscReal that gives a sorted sequence.

Synopsis

#include "petscsys.h"  
PetscErrorCode PetscSortRealWithPermutation(PetscInt n, const PetscReal i[], PetscInt idx[])

Not Collective

Input Parameters

• n - number of values to sort

• i - values to sort

• idx - permutation array. Must be initialized to 0:n-1 on input.

Note

On output, i is unchanged and idx[j] is the position of the jth smallest PetscReal in i.

See Also

PetscSortReal(), PetscSortIntWithPermutation()

Level

intermediate

Location

src/sys/utils/sortip.c

Examples

src/snes/tutorials/ex13.c
src/ts/tutorials/extchem.c

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