This source file includes following definitions.
- MPI_Graph_neighbors_count
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22 #include "ompi_config.h"
23 #include <stdio.h>
24
25 #include "ompi/mpi/c/bindings.h"
26 #include "ompi/runtime/params.h"
27 #include "ompi/communicator/communicator.h"
28 #include "ompi/errhandler/errhandler.h"
29 #include "ompi/mca/topo/topo.h"
30 #include "ompi/memchecker.h"
31
32 #if OMPI_BUILD_MPI_PROFILING
33 #if OPAL_HAVE_WEAK_SYMBOLS
34 #pragma weak MPI_Graph_neighbors_count = PMPI_Graph_neighbors_count
35 #endif
36 #define MPI_Graph_neighbors_count PMPI_Graph_neighbors_count
37 #endif
38
39 static const char FUNC_NAME[] = "MPI_Graph_neighbors_count";
40
41
42 int MPI_Graph_neighbors_count(MPI_Comm comm, int rank, int *nneighbors)
43 {
44 int err;
45
46 MEMCHECKER(
47 memchecker_comm(comm);
48 );
49
50
51 if (MPI_PARAM_CHECK) {
52 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
53 if (ompi_comm_invalid(comm)) {
54 return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_COMM,
55 FUNC_NAME);
56 }
57 if (OMPI_COMM_IS_INTER(comm)) {
58 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_COMM,
59 FUNC_NAME);
60 }
61 if ((0 > rank) || (rank > ompi_group_size(comm->c_local_group))) {
62 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_RANK,
63 FUNC_NAME);
64 }
65 if (NULL == nneighbors) {
66 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
67 FUNC_NAME);
68 }
69 }
70
71 if (!OMPI_COMM_IS_GRAPH(comm)) {
72 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
73 FUNC_NAME);
74 }
75 OPAL_CR_ENTER_LIBRARY();
76
77 err = comm->c_topo->topo.graph.graph_neighbors_count(comm, rank, nneighbors);
78 OPAL_CR_EXIT_LIBRARY();
79
80 OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
81 }