ISLocalToGlobalMappingGetBlockInfo#
Gets the neighbor information
Synopsis#
#include "petscis.h"
PetscErrorCode ISLocalToGlobalMappingGetBlockInfo(ISLocalToGlobalMapping mapping, PetscInt *nproc, PetscInt *procs[], PetscInt *numprocs[], PetscInt **indices[])
Collective the first time it is called
Input Parameter#
mapping - the mapping from local to global indexing
Output Parameters#
nproc - number of processes that are connected to the calling process
procs - neighboring processes
numprocs - number of block indices for each process
indices - block indices (in local numbering) shared with neighbors (sorted by global numbering)
See Also#
Low-level Vector Communication, ISLocalToGlobalMappingDestroy(), ISLocalToGlobalMappingCreateIS(), ISLocalToGlobalMappingCreate(),
ISLocalToGlobalMappingRestoreBlockInfo(), ISLocalToGlobalMappingGetBlockMultiLeavesSF()
Level#
advanced
Location#
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages