ISGetPointSubrange#

Configures the input IS to be a subrange for the traversal information given

Synopsis#

#include "petscis.h"  
PetscErrorCode ISGetPointSubrange(IS subpointIS, PetscInt pStart, PetscInt pEnd, const PetscInt *points)

Not Collective

Input Parameters#

  • subpointIS - The IS object to be configured

  • pStart - The first index of the subrange

  • pEnd - One past the last index for the subrange

  • points - The indices for the entire range, from ISGetPointRange()

Output Parameters#

  • subpointIS - The IS object now configured to be a subrange

Note#

The input IS will now respond properly to calls to ISGetPointRange() and return the subrange.

See Also#

Low-level Vector Communication, IS, ISGetPointRange(), ISRestorePointRange(), ISGetIndices(), ISCreateStride()

Level#

intermediate

Location#

src/vec/is/utils/isltog.c

Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages