This source file includes following definitions.
- MPI_Comm_split
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21 #include "ompi_config.h"
22 #include <stdio.h>
23
24 #include "ompi/mpi/c/bindings.h"
25 #include "ompi/runtime/params.h"
26 #include "ompi/communicator/communicator.h"
27 #include "ompi/errhandler/errhandler.h"
28 #include "ompi/memchecker.h"
29
30 #if OMPI_BUILD_MPI_PROFILING
31 #if OPAL_HAVE_WEAK_SYMBOLS
32 #pragma weak MPI_Comm_split = PMPI_Comm_split
33 #endif
34 #define MPI_Comm_split PMPI_Comm_split
35 #endif
36
37 static const char FUNC_NAME[] = "MPI_Comm_split";
38
39
40 int MPI_Comm_split(MPI_Comm comm, int color, int key, MPI_Comm *newcomm) {
41
42 int rc;
43
44 MEMCHECKER(
45 memchecker_comm(comm);
46 );
47
48 if ( MPI_PARAM_CHECK ) {
49 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
50
51 if ( ompi_comm_invalid ( comm )) {
52 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
53 FUNC_NAME);
54 }
55
56 if ( color < 0 && MPI_UNDEFINED != color ) {
57 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
58 FUNC_NAME);
59 }
60
61 if ( NULL == newcomm ) {
62 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
63 FUNC_NAME);
64 }
65 }
66
67 OPAL_CR_ENTER_LIBRARY();
68
69 rc = ompi_comm_split ( (ompi_communicator_t*)comm, color, key,
70 (ompi_communicator_t**)newcomm, false);
71 OMPI_ERRHANDLER_RETURN ( rc, comm, rc, FUNC_NAME);
72 }