This source file includes following definitions.
- MPI_Iscatterv
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  24 #include "ompi_config.h"
  25 #include <stdio.h>
  26 
  27 #include "ompi/mpi/c/bindings.h"
  28 #include "ompi/runtime/params.h"
  29 #include "ompi/communicator/communicator.h"
  30 #include "ompi/errhandler/errhandler.h"
  31 #include "ompi/datatype/ompi_datatype.h"
  32 #include "ompi/memchecker.h"
  33 #include "ompi/runtime/ompi_spc.h"
  34 
  35 #if OMPI_BUILD_MPI_PROFILING
  36 #if OPAL_HAVE_WEAK_SYMBOLS
  37 #pragma weak MPI_Iscatterv = PMPI_Iscatterv
  38 #endif
  39 #define MPI_Iscatterv PMPI_Iscatterv
  40 #endif
  41 
  42 static const char FUNC_NAME[] = "MPI_Iscatterv";
  43 
  44 
  45 int MPI_Iscatterv(const void *sendbuf, const int sendcounts[], const int displs[],
  46                   MPI_Datatype sendtype, void *recvbuf, int recvcount,
  47                   MPI_Datatype recvtype, int root, MPI_Comm comm, MPI_Request *request)
  48 {
  49     int i, size, err;
  50 
  51     SPC_RECORD(OMPI_SPC_ISCATTERV, 1);
  52 
  53     MEMCHECKER(
  54         ptrdiff_t ext;
  55 
  56         size = ompi_comm_remote_size(comm);
  57         ompi_datatype_type_extent(recvtype, &ext);
  58 
  59         memchecker_comm(comm);
  60         if(OMPI_COMM_IS_INTRA(comm)) {
  61               if(ompi_comm_rank(comm) == root) {
  62                 memchecker_datatype(sendtype);
  63                 
  64                 for (i = 0; i < size; i++) {
  65                     memchecker_call(&opal_memchecker_base_isdefined,
  66                                     (char *)(sendbuf)+displs[i]*ext,
  67                                     sendcounts[i], sendtype);
  68                 }
  69                 if(MPI_IN_PLACE != recvbuf) {
  70                     memchecker_datatype(recvtype);
  71                     
  72                     memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
  73                 }
  74               } else {
  75                   memchecker_datatype(recvtype);
  76                   
  77                   memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
  78               }
  79         } else {
  80             if(MPI_ROOT == root) {
  81                   memchecker_datatype(sendtype);
  82                   
  83                   for (i = 0; i < size; i++) {
  84                       memchecker_call(&opal_memchecker_base_isdefined,
  85                                       (char *)(sendbuf)+displs[i]*ext,
  86                                       sendcounts[i], sendtype);
  87                   }
  88             } else if (MPI_PROC_NULL != root) {
  89                 
  90                 memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
  91             }
  92         }
  93     );
  94 
  95     if (MPI_PARAM_CHECK) {
  96         err = MPI_SUCCESS;
  97         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  98         if (ompi_comm_invalid(comm)) {
  99             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
 100                                           FUNC_NAME);
 101         } else if ((ompi_comm_rank(comm) != root && MPI_IN_PLACE == recvbuf) ||
 102                    (ompi_comm_rank(comm) == root && MPI_IN_PLACE == sendbuf)) {
 103             return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
 104         }
 105 
 106         
 107 
 108         if (OMPI_COMM_IS_INTRA(comm)) {
 109 
 110             
 111 
 112             if ((root >= ompi_comm_size(comm)) || (root < 0)) {
 113                 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ROOT, FUNC_NAME);
 114             }
 115 
 116             if (MPI_IN_PLACE != recvbuf) {
 117                 if (recvcount < 0) {
 118                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT,
 119                                                   FUNC_NAME);
 120                 }
 121 
 122                 if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
 123                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE,
 124                                                   FUNC_NAME);
 125                 }
 126             }
 127 
 128             
 129 
 130 
 131 
 132 
 133 
 134             if (ompi_comm_rank(comm) == root) {
 135                 if (NULL == displs) {
 136                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
 137                 }
 138 
 139                 if (NULL == sendcounts) {
 140                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
 141                 }
 142 
 143                 size = ompi_comm_size(comm);
 144                 for (i = 0; i < size; ++i) {
 145                     OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
 146                     OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
 147                 }
 148             }
 149         }
 150 
 151         
 152 
 153         else {
 154             if (! ((root >= 0 && root < ompi_comm_remote_size(comm)) ||
 155                    MPI_ROOT == root || MPI_PROC_NULL == root)) {
 156                 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ROOT, FUNC_NAME);
 157             }
 158 
 159           
 160 
 161             if (MPI_ROOT != root && MPI_PROC_NULL != root) {
 162                 if (recvcount < 0) {
 163                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
 164                 }
 165 
 166                 if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
 167                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
 168                 }
 169             }
 170 
 171             
 172 
 173 
 174 
 175             else if (MPI_ROOT == root) {
 176                 if (NULL == displs) {
 177                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
 178                 }
 179 
 180                 if (NULL == sendcounts) {
 181                     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
 182                 }
 183 
 184                 size = ompi_comm_remote_size(comm);
 185                 for (i = 0; i < size; ++i) {
 186                     OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
 187                     OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
 188                 }
 189             }
 190         }
 191     }
 192 
 193     OPAL_CR_ENTER_LIBRARY();
 194 
 195     
 196     err = comm->c_coll->coll_iscatterv(sendbuf, sendcounts, displs,
 197                                       sendtype, recvbuf, recvcount, recvtype, root, comm,
 198                                       request, comm->c_coll->coll_iscatterv_module);
 199     OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
 200 }