petsc-3.6.4 2016-04-12
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PetscSortIntWithPermutation

 Computes the permutation of values that gives a sorted sequence.

Synopsis

#include "petscsys.h"  
PetscErrorCode  PetscSortIntWithPermutation(PetscInt n,const PetscInt 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.

Notes

On output i is unchanged and idx[i] is the position of the i-th smallest index in i.

See Also

PetscSortInt(), PetscSortRealWithPermutation(), PetscSortIntWithArray()

Level:intermediate
Location:src/sys/utils/sortip.c
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Index of all manual pages