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
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
#define TARGET 0
/* Test the given operation within a Fence epoch */
#define TEST_FENCE_OP(op_name_, fcn_call_) \
do { \
err = fcn_call_ \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Zero-byte op " op_name_, err); \
} \
} \
err = MPI_Win_fence(0, win); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Fence after " op_name_, err); \
} \
} \
} while (0)
/* Test the given operation within a passive target epoch */
#define TEST_PT_OP(op_name_, fcn_call_) \
do { \
err = MPI_Win_lock(MPI_LOCK_EXCLUSIVE, TARGET, 0, win); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Lock before" op_name_, err); \
} \
} \
err = fcn_call_ \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Zero-byte op " op_name_, err); \
} \
} \
err = MPI_Win_unlock(TARGET, win); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Unlock after " op_name_, err); \
} \
} \
} while (0)
/* Test the given request-based operation within a passive target epoch */
#define TEST_REQ_OP(op_name_, req_, fcn_call_) \
do { \
err = MPI_Win_lock(MPI_LOCK_EXCLUSIVE, TARGET, 0, win); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Lock before" op_name_, err); \
} \
} \
err = fcn_call_ \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Zero-byte op " op_name_, err); \
} \
} \
err = MPI_Win_unlock(TARGET, win); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Unlock after " op_name_, err); \
} \
} \
err = MPI_Wait(&req_, MPI_STATUS_IGNORE); \
if (err) { \
errs++; \
if (errs < 10) { \
MTestPrintErrorMsg("Wait after " op_name_, err); \
} \
} \
} while (0)
/*
static char MTEST_Descrip[] = "Test handling of zero-byte transfers";
*/
int main(int argc, char *argv[])
{
int errs = 0, err;
int rank, size;
int *buf, bufsize;
int *result;
int *rmabuf, rsize, rcount;
MPI_Comm comm;
MPI_Win win;
MPI_Request req;
MPI_Datatype derived_dtp;
MTest_Init(&argc, &argv);
bufsize = 256 * sizeof(int);
buf = (int *) malloc(bufsize);
if (!buf) {
fprintf(stderr, "Unable to allocated %d bytes\n", bufsize);
MPI_Abort(MPI_COMM_WORLD, 1);
}
result = (int *) malloc(bufsize);
if (!result) {
fprintf(stderr, "Unable to allocated %d bytes\n", bufsize);
MPI_Abort(MPI_COMM_WORLD, 1);
}
rcount = 16;
rsize = rcount * sizeof(int);
rmabuf = (int *) malloc(rsize);
if (!rmabuf) {
fprintf(stderr, "Unable to allocated %d bytes\n", rsize);
MPI_Abort(MPI_COMM_WORLD, 1);
}
MPI_Type_contiguous(2, MPI_INT, &derived_dtp);
MPI_Type_commit(&derived_dtp);
/* The following loop is used to run through a series of communicators
* that are subsets of MPI_COMM_WORLD, of size 1 or greater. */
while (MTestGetIntracommGeneral(&comm, 1, 1)) {
int count = 0;
if (comm == MPI_COMM_NULL)
continue;
/* Determine the sender and receiver */
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
MPI_Win_create(buf, bufsize, 2 * sizeof(int), MPI_INFO_NULL, comm, &win);
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Win_set_errhandler(win, MPI_ERRORS_RETURN);
/** TEST OPERATIONS USING ACTIVE TARGET (FENCE) SYNCHRONIZATION **/
MPI_Win_fence(0, win);
TEST_FENCE_OP("Put", MPI_Put(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win);
);
TEST_FENCE_OP("Get", MPI_Get(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win);
);
TEST_FENCE_OP("Accumulate",
MPI_Accumulate(rmabuf, count, MPI_INT, TARGET,
0, count, MPI_INT, MPI_SUM, win);
);
TEST_FENCE_OP("Accumulate_derived",
MPI_Accumulate(rmabuf, count, derived_dtp, TARGET,
0, count, derived_dtp, MPI_SUM, win);
);
TEST_FENCE_OP("Get accumulate",
MPI_Get_accumulate(rmabuf, count, MPI_INT, result,
count, MPI_INT, TARGET, 0, count, MPI_INT, MPI_SUM, win);
);
/* Note: It's not possible to generate a zero-byte FOP or CAS */
/** TEST OPERATIONS USING PASSIVE TARGET SYNCHRONIZATION **/
TEST_PT_OP("Put", MPI_Put(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win);
);
TEST_PT_OP("Get", MPI_Get(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win);
);
TEST_PT_OP("Accumulate",
MPI_Accumulate(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, MPI_SUM, win);
);
TEST_PT_OP("Accumulate_derived",
MPI_Accumulate(rmabuf, count, derived_dtp, TARGET, 0, count, derived_dtp,
MPI_SUM, win);
);
TEST_PT_OP("Get accumulate",
MPI_Get_accumulate(rmabuf, count, MPI_INT, result, count, MPI_INT, TARGET, 0,
count, MPI_INT, MPI_SUM, win);
);
/* Note: It's not possible to generate a zero-byte FOP or CAS */
/** TEST REQUEST-BASED OPERATIONS (PASSIVE TARGET ONLY) **/
TEST_REQ_OP("Rput", req,
MPI_Rput(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win, &req);
);
TEST_REQ_OP("Rget", req,
MPI_Rget(rmabuf, count, MPI_INT, TARGET, 0, count, MPI_INT, win, &req);
);
TEST_REQ_OP("Raccumulate", req,
MPI_Raccumulate(rmabuf, count, MPI_INT, TARGET, 0,
count, MPI_INT, MPI_SUM, win, &req);
);
TEST_REQ_OP("Raccumulate_derived", req,
MPI_Raccumulate(rmabuf, count, derived_dtp, TARGET, 0,
count, derived_dtp, MPI_SUM, win, &req);
);
TEST_REQ_OP("Rget_accumulate", req,
MPI_Rget_accumulate(rmabuf, count, MPI_INT, result,
count, MPI_INT, TARGET, 0,
count, MPI_INT, MPI_SUM, win, &req);
);
MPI_Win_free(&win);
MTestFreeComm(&comm);
}
MPI_Type_free(&derived_dtp);
free(result);
free(buf);
free(rmabuf);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
|
