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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
// Copyright (C) 2006 Douglas Gregor.
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// A test of the nonblocking point-to-point operations.
#include <boost/mpi/nonblocking.hpp>
#include <boost/mpi/communicator.hpp>
#include <boost/mpi/environment.hpp>
#include "gps_position.hpp"
#include <boost/lexical_cast.hpp>
#include <boost/serialization/string.hpp>
#include <boost/serialization/list.hpp>
#include <iterator>
#include <algorithm>
//#include "debugger.cpp"
#define BOOST_TEST_MODULE mpi_non_blockin_test
#include <boost/test/included/unit_test.hpp>
using boost::mpi::communicator;
using boost::mpi::request;
using boost::mpi::status;
enum method_kind {
mk_wait_any, mk_test_any, mk_wait_all, mk_wait_all_keep,
mk_test_all, mk_test_all_keep, mk_wait_some, mk_wait_some_keep,
mk_test_some, mk_test_some_keep,
mk_test_size
};
static const char* method_kind_names[mk_test_size] = {
"wait_any",
"test_any",
"wait_all",
"wait_all (keep results)",
"test_all",
"test_all (keep results)",
"wait_some",
"wait_some (keep results)",
"test_some",
"test_some (keep results)"
};
template<typename T>
void
nonblocking_tests( const communicator& comm, const T* values, int num_values,
const char* kind, bool composite)
{
nonblocking_test(comm, values, num_values, kind, mk_wait_any);
nonblocking_test(comm, values, num_values, kind, mk_test_any);
//wait_for_debugger(comm);
nonblocking_test(comm, values, num_values, kind, mk_wait_all);
nonblocking_test(comm, values, num_values, kind, mk_wait_all_keep);
if (!composite) {
nonblocking_test(comm, values, num_values, kind, mk_test_all);
nonblocking_test(comm, values, num_values, kind, mk_test_all_keep);
}
nonblocking_test(comm, values, num_values, kind, mk_wait_some);
nonblocking_test(comm, values, num_values, kind, mk_wait_some_keep);
nonblocking_test(comm, values, num_values, kind, mk_test_some);
nonblocking_test(comm, values, num_values, kind, mk_test_some_keep);
}
template<typename T>
void
nonblocking_test(const communicator& comm, const T* values, int num_values,
const char* kind, method_kind method)
{
using boost::mpi::wait_any;
using boost::mpi::test_any;
using boost::mpi::wait_all;
using boost::mpi::test_all;
using boost::mpi::wait_some;
using boost::mpi::test_some;
int next = (comm.rank() + 1) % comm.size();
int prev = (comm.rank() + comm.size() - 1) % comm.size();
if (comm.rank() == 0) {
std::cout << "Testing " << method_kind_names[method]
<< " with " << kind << "...";
std::cout.flush();
}
typedef std::pair<status, std::vector<request>::iterator>
status_iterator_pair;
T incoming_value;
std::vector<T> incoming_values(num_values);
std::vector<request> reqs;
// Send/receive the first value
reqs.push_back(comm.isend(next, 0, values[0]));
reqs.push_back(comm.irecv(prev, 0, incoming_value));
if (method != mk_wait_any && method != mk_test_any) {
#ifndef LAM_MPI
// We've run into problems here (with 0-length messages) with
// LAM/MPI on Mac OS X and x86-86 Linux. Will investigate
// further at a later time, but the problem only seems to occur
// when using shared memory, not TCP.
// Send/receive an empty message
reqs.push_back(comm.isend(next, 1));
reqs.push_back(comm.irecv(prev, 1));
#endif
// Send/receive an array
reqs.push_back(comm.isend(next, 2, values, num_values));
reqs.push_back(comm.irecv(prev, 2, &incoming_values.front(), num_values));
}
switch (method) {
case mk_wait_any:
if (wait_any(reqs.begin(), reqs.end()).second == reqs.begin())
reqs[1].wait();
else
reqs[0].wait();
break;
case mk_test_any:
{
boost::optional<status_iterator_pair> result;
do {
result = test_any(reqs.begin(), reqs.end());
} while (!result);
if (result->second == reqs.begin())
reqs[1].wait();
else
reqs[0].wait();
break;
}
case mk_wait_all:
wait_all(reqs.begin(), reqs.end());
break;
case mk_wait_all_keep:
{
std::vector<status> stats;
wait_all(reqs.begin(), reqs.end(), std::back_inserter(stats));
}
break;
case mk_test_all:
while (!test_all(reqs.begin(), reqs.end())) { /* Busy wait */ }
break;
case mk_test_all_keep:
{
std::vector<status> stats;
while (!test_all(reqs.begin(), reqs.end(), std::back_inserter(stats)))
/* Busy wait */;
}
break;
case mk_wait_some:
{
std::vector<request>::iterator pos = reqs.end();
do {
pos = wait_some(reqs.begin(), pos);
} while (pos != reqs.begin());
}
break;
case mk_wait_some_keep:
{
std::vector<status> stats;
std::vector<request>::iterator pos = reqs.end();
do {
pos = wait_some(reqs.begin(), pos, std::back_inserter(stats)).second;
} while (pos != reqs.begin());
}
break;
case mk_test_some:
{
std::vector<request>::iterator pos = reqs.end();
do {
pos = test_some(reqs.begin(), pos);
} while (pos != reqs.begin());
}
break;
case mk_test_some_keep:
{
std::vector<status> stats;
std::vector<request>::iterator pos = reqs.end();
do {
pos = test_some(reqs.begin(), pos, std::back_inserter(stats)).second;
} while (pos != reqs.begin());
}
break;
default:
BOOST_CHECK(false);
}
if (comm.rank() == 0) {
bool okay = true;
if (!((incoming_value == values[0])))
okay = false;
if (method != mk_wait_any && method != mk_test_any
&& !std::equal(incoming_values.begin(), incoming_values.end(),
values))
okay = false;
if (okay)
std::cout << "OK." << std::endl;
else
std::cerr << "ERROR!" << std::endl;
}
BOOST_CHECK(incoming_value == values[0]);
if (method != mk_wait_any && method != mk_test_any)
BOOST_CHECK(std::equal(incoming_values.begin(), incoming_values.end(),
values));
}
BOOST_AUTO_TEST_CASE(nonblocking)
{
boost::mpi::environment env;
communicator comm;
int int_array[3] = {17, 42, 256};
nonblocking_tests(comm, int_array, 3, "integers", false);
gps_position gps_array[2] = {
gps_position(17, 42, .06),
gps_position(42, 17, .06)
};
nonblocking_tests(comm, gps_array, 2, "gps positions", false);
std::string string_array[2] = { "Hello", "World" };
nonblocking_tests(comm, string_array, 2, "strings", true);
std::list<std::string> lst_of_strings;
for (int i = 0; i < comm.size(); ++i)
lst_of_strings.push_back(boost::lexical_cast<std::string>(i));
nonblocking_tests(comm, &lst_of_strings, 1, "list of strings", true);
}
|
