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
opal_crs_base_select(void)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 }
79