root/ompi/mpi/c/initialized.c

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DEFINITIONS

This source file includes following definitions.
  1. MPI_Initialized

   1 /*
   2  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2005 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * Copyright (c) 2015      Research Organization for Information Science
  13  *                         and Technology (RIST). All rights reserved.
  14  * Copyright (c) 2015-2018 Cisco Systems, Inc.  All rights reserved
  15  * Copyright (c) 2015      Intel, Inc. All rights reserved
  16  * $COPYRIGHT$
  17  *
  18  * Additional copyrights may follow
  19  *
  20  * $HEADER$
  21  */
  22 
  23 #include "ompi_config.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/hook/base/base.h"
  30 
  31 #if OMPI_BUILD_MPI_PROFILING
  32 #if OPAL_HAVE_WEAK_SYMBOLS
  33 #pragma weak MPI_Initialized = PMPI_Initialized
  34 #endif
  35 #define MPI_Initialized PMPI_Initialized
  36 #endif
  37 
  38 static const char FUNC_NAME[] = "MPI_Initialized";
  39 
  40 
  41 int MPI_Initialized(int *flag)
  42 {
  43     OPAL_CR_NOOP_PROGRESS();
  44 
  45     ompi_hook_base_mpi_initialized_top(flag);
  46 
  47     int32_t state = ompi_mpi_state;
  48 
  49     if (MPI_PARAM_CHECK) {
  50         if (NULL == flag) {
  51 
  52             /* If we have an error, the action that we take depends on
  53                whether we're currently (after MPI_Init and before
  54                MPI_Finalize) or not */
  55 
  56             if (state >= OMPI_MPI_STATE_INIT_COMPLETED &&
  57                 state < OMPI_MPI_STATE_FINALIZE_PAST_COMM_SELF_DESTRUCT) {
  58                 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
  59                                               FUNC_NAME);
  60             } else {
  61                 /* We have no MPI object here so call ompi_errhandle_invoke
  62                  * directly */
  63                 return ompi_errhandler_invoke(NULL, NULL, -1,
  64                                               ompi_errcode_get_mpi_code(MPI_ERR_ARG),
  65                                               FUNC_NAME);
  66             }
  67         }
  68     }
  69 
  70     *flag = (state >= OMPI_MPI_STATE_INIT_COMPLETED);
  71 
  72     ompi_hook_base_mpi_initialized_bottom(flag);
  73 
  74     return MPI_SUCCESS;
  75 }

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