#include "petscis.h" PetscErrorCode ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping mapping,PetscInt *nproc,PetscInt *procs[],PetscInt *numprocs[],PetscInt **indices[])Collective on ISLocalToGlobalMapping
| mapping | - the mapping from local to global indexing |
| nproc | - number of processors that are connected to this one | |
| proc | - neighboring processors | |
| numproc | - number of indices for each subdomain (processor) | |
| indices | - indices of nodes (in local numbering) shared with neighbors (sorted by global numbering) |
Notes: The user needs to call ISLocalToGlobalMappingRestoreInfo when the data is no longer needed.
ISLocalToGlobalMpngGetInfoSize(ISLocalToGlobalMapping,PetscInt nproc,PetscInt numprocmax,ierr) followed by
ISLocalToGlobalMappingGetInfo(ISLocalToGlobalMapping,PetscInt nproc, PetscInt procs[nproc],PetscInt numprocs[nproc],
PetscInt indices[nproc][numprocmax],ierr)
There is no ISLocalToGlobalMappingRestoreInfo() in Fortran. You must make sure that procs[], numprocs[] and
indices[][] are large enough arrays, either by allocating them dynamically or defining static ones large enough.