root/opal/mca/crs/base/crs_base_select.c

DEFINITIONS

1. opal_crs_base_select

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
   2 /*
   3  * Copyright (c) 2004-2010 The Trustees of Indiana University.
   4  *                         All rights reserved.
   5  * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
   6  *                         All rights reserved.
   7  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   8  *                         University of Stuttgart.  All rights reserved.
   9  * Copyright (c) 2004-2005 The Regents of the University of California.
  10  *                         All rights reserved.
  11  * Copyright (c) 2007      Evergrid, Inc. All rights reserved.
  12  * Copyright (c) 2015      Los Alamos National Security, LLC. All rights
  13  *                         reserved.
  14  *
  15  * $COPYRIGHT$
  16  *
  17  * Additional copyrights may follow
  18  *
  19  * $HEADER$
  20  */
  21 
  22 #include "opal_config.h"
  23 
  24 #ifdef HAVE_UNISTD_H
  25 #include "unistd.h"
  26 #endif
  27 
  28 #include "opal/constants.h"
  29 #include "opal/util/output.h"
  30 #include "opal/mca/mca.h"
  31 #include "opal/mca/base/base.h"
  32 #include "opal/mca/crs/crs.h"
  33 #include "opal/mca/crs/base/base.h"
  34 
  35 bool opal_crs_base_do_not_select = false;
  36 
  37 int opal_crs_base_select(void)
  38 {
  39     opal_crs_base_component_t *best_component = NULL;
  40     opal_crs_base_module_t *best_module = NULL;
  41     int ret;
  42 
  43     if( !opal_cr_is_enabled ) {
  44         opal_output_verbose(10, opal_crs_base_framework.framework_output,
  45                             "crs:select: FT is not enabled, skipping!");
  46         return OPAL_SUCCESS;
  47     }
  48 
  49     if( opal_crs_base_do_not_select ) {
  50         opal_output_verbose(10, opal_crs_base_framework.framework_output,
  51                             "crs:select: Not selecting at this time!");
  52         return OPAL_SUCCESS;
  53     }
  54 
  55     /*
  56      * Select the best component
  57      */
  58     if( OPAL_SUCCESS != mca_base_select("crs", opal_crs_base_framework.framework_output,
  59                                         &opal_crs_base_framework.framework_components,
  60                                         (mca_base_module_t **) &best_module,
  61                                         (mca_base_component_t **) &best_component, NULL) ) {
  62         /* This will only happen if no component was selected */
  63         return OPAL_ERROR;
  64     }
  65 
  66     /* best_module and best_component should not be NULL here */
  67 
  68     /* Save the winner */
  69     opal_crs_base_selected_component = *best_component;
  70     opal_crs = *best_module;
  71 
  72     /* Initialize the winner */
  73     if (OPAL_SUCCESS != (ret = opal_crs.crs_init()) ) {
  74         return ret;
  75     }
  76 
  77     return OPAL_SUCCESS;
  78 }