MPI_Graph_neighbors_count function - Message Passing Interface (original) (raw)
Returns the number of neighbors of a node associated with a graph topology.
Syntax
int MPIAPI MPI_Graph_neighbors_count(
MPI_Comm comm,
int rank,
_Out_ int *nneighbors
);
Parameters
- comm
Communicator with graph topology. - rank
Rank of process in group of comm. - nneighbors [out]
Number of neighbors of specified process.
Return value
Returns MPI_SUCCESS on success. Otherwise, the return value is an error code.
In Fortran, the return value is stored in the IERROR parameter.
Fortran
MPI_GRAPH_NEIGHBORS_COUNT(COMM, RANK, NNEIGHBORS, IERROR)
INTEGER COMM, RANK, NNEIGHBORS, IERROR
Requirements
| Product | HPC Pack 2012 MS-MPI Redistributable Package, HPC Pack 2008 R2 MS-MPI Redistributable Package, HPC Pack 2008 MS-MPI Redistributable Package or HPC Pack 2008 Client Utilities |
|---|---|
| Header | Mpi.h; Mpif.h |
| Library | Msmpi.lib |
| DLL | Msmpi.dll |