ISEqualUnsorted#

Compares if two index sets have the same indices.

Synopsis#

#include "petscis.h"  
PetscErrorCode ISEqualUnsorted(IS is1, IS is2, PetscBool *flg)

Collective

Input Parameters#

  • is1 - first index set to compare

  • is2 - second index set to compare

Output Parameter#

  • flg - output flag, either PETSC_TRUE (if both index sets have the same indices), or PETSC_FALSE if the index sets differ by size or by the set of indices)

Note#

Unlike ISEqual(), this routine does NOT sort the contents of the index sets before the comparison is made, i.e., the order of indices is important.

Each MPI rank must have the same indices.

See Also#

Low-level Vector Communication, IS, ISEqual()

Level#

intermediate

Location#

src/vec/is/is/utils/iscomp.c

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Index of all IS routines
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Index of all manual pages