ompi/mpi/c/iexscan.c

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This source file includes following definitions.
MPI_Iexscan
   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
   2 /*
   3  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   4  *                         University Research and Technology
   5  *                         Corporation.  All rights reserved.
   6  * Copyright (c) 2004-2017 The University of Tennessee and The University
   7  *                         of Tennessee Research Foundation.  All rights
   8  *                         reserved.
   9  * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
  10  *                         University of Stuttgart.  All rights reserved.
  11  * Copyright (c) 2004-2005 The Regents of the University of California.
  12  *                         All rights reserved.
  13  * Copyright (c) 2013      Los Alamos National Security, LLC.  All rights
  14  *                         reserved.
  15  * Copyright (c) 2015-2018 Research Organization for Information Science
  16  *                         and Technology (RIST). All rights reserved.
  17  * $COPYRIGHT$
  18  *
  19  * Additional copyrights may follow
  20  *
  21  * $HEADER$
  22  */
  23 
  24 #include "ompi_config.h"
  25 
  26 #include "ompi/mpi/c/bindings.h"
  27 #include "ompi/runtime/params.h"
  28 #include "ompi/communicator/communicator.h"
  29 #include "ompi/errhandler/errhandler.h"
  30 #include "ompi/datatype/ompi_datatype.h"
  31 #include "ompi/op/op.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_Iexscan = PMPI_Iexscan
  38 #endif
  39 #define MPI_Iexscan PMPI_Iexscan
  40 #endif
  41 
  42 static const char FUNC_NAME[] = "MPI_Iexscan";
  43 
  44 
  45 int MPI_Iexscan(const void *sendbuf, void *recvbuf, int count,
  46                 MPI_Datatype datatype, MPI_Op op, MPI_Comm comm, MPI_Request *request)
  47 {
  48     int err;
  49 
  50     SPC_RECORD(OMPI_SPC_IEXSCAN, 1);
  51 
  52     MEMCHECKER(
  53         memchecker_datatype(datatype);
  54         memchecker_call(&opal_memchecker_base_isdefined, sendbuf, count, datatype);
  55         memchecker_comm(comm);
  56     );
  57 
  58     if (MPI_PARAM_CHECK) {
  59         char *msg;
  60         err = MPI_SUCCESS;
  61         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  62         if (ompi_comm_invalid(comm)) {
  63             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
  64                                           FUNC_NAME);
  65         }
  66 
  67         /* Unrooted operation -- same checks for intracommunicators
  68            and intercommunicators */
  69         else if (MPI_OP_NULL == op) {
  70             err = MPI_ERR_OP;
  71         } else if (!ompi_op_is_valid(op, datatype, &msg, FUNC_NAME)) {
  72             int ret = OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_OP, msg);
  73             free(msg);
  74             return ret;
  75         } else {
  76             OMPI_CHECK_DATATYPE_FOR_SEND(err, datatype, count);
  77         }
  78         OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
  79     }
  80 
  81     OPAL_CR_ENTER_LIBRARY();
  82 
  83     /* Invoke the coll component to perform the back-end operation */
  84 
  85     OBJ_RETAIN(op);
  86     err = comm->c_coll->coll_iexscan(sendbuf, recvbuf, count,
  87                                     datatype, op, comm, request,
  88                                     comm->c_coll->coll_iexscan_module);
  89     OBJ_RELEASE(op);
  90     OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
  91 }
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root/ompi/mpi/c/iexscan.c

DEFINITIONS
