1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpi.h"
#include "ompi/constants.h"
#include "opal/class/opal_list.h"
#include "opal/util/output.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_component_repository.h"
#include "ompi/mca/io/io.h"
#include "ompi/mca/io/base/base.h"
#include "ompi/mca/io/base/io_base_request.h"
/*
* Private functions
*/
static int init_query(const mca_base_component_t *ls,
mca_base_component_priority_list_item_t *entry,
bool enable_progress_threads,
bool enable_mpi_threads);
static int init_query_1_0_0(const mca_base_component_t *ls,
mca_base_component_priority_list_item_t *entry,
bool enable_progress_threads,
bool enable_mpi_threads);
/*
* Scan down the list of successfully opened components and query each of
* them (the opened list will be one or more components. If the user
* requested a specific component, it will be the only component in the
* opened list). Create and populate the available list of all
* components who indicate that they want to be considered for selection.
* Close all components who do not want to be considered for selection,
* and destroy the opened list.
*
* It is *not* an error if there are no io components available.
* Appropriate run-time MPI exceptions will be invoked during
* MPI_FILE_OPEN and MPI_FILE_DELETE.
*/
int mca_io_base_find_available(bool enable_progress_threads,
bool enable_mpi_threads)
{
int err;
mca_base_component_priority_list_item_t *entry;
opal_list_item_t *p;
const mca_base_component_t *component;
/* Initialize the list */
OBJ_CONSTRUCT(&mca_io_base_components_available, opal_list_t);
mca_io_base_components_available_valid = true;
/* The list of components that we should check has already been
established in mca_io_base_open. */
for (p = opal_list_remove_first(&mca_io_base_components_opened);
p != NULL;
p = opal_list_remove_first(&mca_io_base_components_opened)) {
component = ((mca_base_component_list_item_t *) p)->cli_component;
/* Call a subroutine to do the work, because the component may
represent different versions of the io MCA. */
entry = OBJ_NEW(mca_base_component_priority_list_item_t);
entry->super.cli_component = component;
entry->cpli_priority = 0;
if (OMPI_SUCCESS == init_query(component, entry,
enable_progress_threads,
enable_mpi_threads)) {
/* Save the results in the list. The priority isn't
relevant, because selection is decided at
communicator-constructor time. But we save the thread
arguments (set in the init_query() function) so that
the initial selection algorithm can negotiate the
overall thread level for this process. */
opal_list_append(&mca_io_base_components_available,
(opal_list_item_t *) entry);
} else {
/* If the component doesn't want to run, then close it.
It's already had its close() method invoked; now close
it out of the DSO repository (if it's there). */
mca_base_component_repository_release(component);
OBJ_RELEASE(entry);
}
/* Free the entry from the "opened" list */
OBJ_RELEASE(p);
}
/* The opened list is now no longer useful and we can free it */
OBJ_DESTRUCT(&mca_io_base_components_opened);
mca_io_base_components_opened_valid = false;
/* Setup the freelist */
if (OMPI_SUCCESS != (err = mca_io_base_request_create_freelist())) {
return err;
}
/* All done */
return OMPI_SUCCESS;
}
/*
* Query a component, see if it wants to run at all. If it does, save
* some information. If it doesn't, close it.
*/
static int init_query(const mca_base_component_t *m,
mca_base_component_priority_list_item_t *entry,
bool enable_progress_threads,
bool enable_mpi_threads)
{
int ret;
opal_output_verbose(10, mca_io_base_output,
"io:find_available: querying io component %s",
m->mca_component_name);
/* This component has already been successfully opened. So now
query it. */
if (1 == m->mca_type_major_version &&
0 == m->mca_type_minor_version &&
0 == m->mca_type_release_version) {
ret = init_query_1_0_0(m, entry, enable_progress_threads,
enable_mpi_threads);
} else {
/* Unrecognized io API version */
opal_output_verbose(10, mca_io_base_output,
"io:find_available: unrecognized io API version (%d.%d.%d)",
m->mca_type_major_version,
m->mca_type_minor_version,
m->mca_type_release_version);
/* JMS show_help */
return OMPI_ERROR;
}
/* Query done -- look at the return value to see what happened */
if (OMPI_SUCCESS != ret) {
opal_output_verbose(10, mca_io_base_output,
"io:find_available: io component %s is not available",
m->mca_component_name);
if (NULL != m->mca_close_component) {
m->mca_close_component();
}
} else {
opal_output_verbose(10, mca_io_base_output,
"io:find_available: io component %s is available",
m->mca_component_name);
}
/* All done */
return ret;
}
/*
* Query a specific component, io v1.0.0
*/
static int init_query_1_0_0(const mca_base_component_t *component,
mca_base_component_priority_list_item_t *entry,
bool enable_progress_threads,
bool enable_mpi_threads)
{
mca_io_base_component_1_0_0_t *io =
(mca_io_base_component_1_0_0_t *) component;
return io->io_init_query(enable_progress_threads,
enable_mpi_threads);
}
|
