root/ompi/mpi/c/rsend_init.c

DEFINITIONS

1. MPI_Rsend_init

   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) 2004-2016 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) 2006      Cisco Systems, Inc.  All rights reserved.
  14  * Copyright (c) 2013      Los Alamos National Security, LLC.  All rights
  15  *                         reserved.
  16  * Copyright (c) 2015      Research Organization for Information Science
  17  *                         and Technology (RIST). All rights reserved.
  18  * Copyright (c) 2018      FUJITSU LIMITED.  All rights reserved.
  19  * $COPYRIGHT$
  20  *
  21  * Additional copyrights may follow
  22  *
  23  * $HEADER$
  24  */
  25 #include "ompi_config.h"
  26 #include <stdio.h>
  27 
  28 #include "ompi/mpi/c/bindings.h"
  29 #include "ompi/runtime/params.h"
  30 #include "ompi/communicator/communicator.h"
  31 #include "ompi/errhandler/errhandler.h"
  32 #include "ompi/mca/pml/pml.h"
  33 #include "ompi/request/request.h"
  34 #include "ompi/memchecker.h"
  35 
  36 #if OMPI_BUILD_MPI_PROFILING
  37 #if OPAL_HAVE_WEAK_SYMBOLS
  38 #pragma weak MPI_Rsend_init = PMPI_Rsend_init
  39 #endif
  40 #define MPI_Rsend_init PMPI_Rsend_init
  41 #endif
  42 
  43 static const char FUNC_NAME[] = "MPI_Rsend_init";
  44 
  45 
  46 int MPI_Rsend_init(const void *buf, int count, MPI_Datatype type,
  47                    int dest, int tag, MPI_Comm comm,
  48                    MPI_Request *request)
  49 {
  50     int rc;
  51 
  52     MEMCHECKER(
  53         memchecker_datatype(type);
  54         memchecker_call(&opal_memchecker_base_isaddressable, buf, count, type);
  55         memchecker_comm(comm);
  56     );
  57 
  58     if ( MPI_PARAM_CHECK ) {
  59         rc = MPI_SUCCESS;
  60         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  61         if (ompi_comm_invalid(comm)) {
  62             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, FUNC_NAME);
  63         } else if (count < 0) {
  64             rc = MPI_ERR_COUNT;
  65         } else if (MPI_DATATYPE_NULL == type || NULL == type) {
  66             rc = MPI_ERR_TYPE;
  67         } else if (tag < 0 || tag > mca_pml.pml_max_tag) {
  68             rc = MPI_ERR_TAG;
  69         } else if (ompi_comm_peer_invalid(comm, dest) &&
  70                    (MPI_PROC_NULL != dest)) {
  71             rc = MPI_ERR_RANK;
  72         } else if (request == NULL) {
  73             rc = MPI_ERR_REQUEST;
  74         }
  75         OMPI_ERRHANDLER_CHECK(rc, comm, rc, FUNC_NAME);
  76     }
  77 
  78     if (MPI_PROC_NULL == dest) {
  79         rc = ompi_request_persistent_noop_create(request);
  80         OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME);
  81     }
  82 
  83     OPAL_CR_ENTER_LIBRARY();
  84 
  85     /*
  86      * Here, we just initialize the request -- memchecker should set the buffer in MPI_Start.
  87      */
  88     rc =  MCA_PML_CALL(isend_init(buf,count,type,dest,tag,
  89                                   MCA_PML_BASE_SEND_READY,comm,request));
  90     OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME);
  91 }
  92