petsc-3.11.4 2019-09-28
ISLocalToGlobalMappingGetNodeInfo
Gets the neighbor information for each node
Synopsis
#include "petscis.h"
PetscErrorCode ISLocalToGlobalMappingGetNodeInfo(ISLocalToGlobalMapping mapping,PetscInt *nnodes,PetscInt *count[],PetscInt **indices[])
Collective on ISLocalToGlobalMapping
Input Parameters
mapping -the mapping from local to global indexing
Output Parameter
| nnodes | - number of local nodes (same ISLocalToGlobalMappingGetSize())
|
| count | - number of neighboring processors per node
|
| indices | - indices of processes sharing the node (sorted)
|
Notes: The user needs to call ISLocalToGlobalMappingRestoreInfo when the data is no longer needed.
See Also
ISLocalToGlobalMappingDestroy(), ISLocalToGlobalMappingCreateIS(), ISLocalToGlobalMappingCreate(),
ISLocalToGlobalMappingGetInfo(), ISLocalToGlobalMappingRestoreNodeInfo()
Level
advanced
Location
src/vec/is/utils/isltog.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages