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
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/* This test is going to test when Accumulate operation is working
* with pair types. */
#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"
#define DATA_SIZE 25
typedef struct long_double_int {
long double a;
int b;
} long_double_int_t;
int main(int argc, char *argv[])
{
MPI_Win win;
int errs = 0;
int rank, nproc, i;
long_double_int_t *orig_buf;
long_double_int_t *tar_buf;
MPI_Datatype vector_dtp;
MTest_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &nproc);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Alloc_mem(sizeof(long_double_int_t) * DATA_SIZE, MPI_INFO_NULL, &orig_buf);
for (i = 0; i < DATA_SIZE; i++) {
orig_buf[i].a = 1.0;
orig_buf[i].b = 1;
}
MPI_Type_vector(5 /* count */ , 3 /* blocklength */ , 5 /* stride */ , MPI_LONG_DOUBLE_INT,
&vector_dtp);
MPI_Type_commit(&vector_dtp);
#ifdef USE_WIN_ALLOCATE
MPI_Win_allocate(sizeof(long_double_int_t) * DATA_SIZE, sizeof(long_double_int_t),
MPI_INFO_NULL, MPI_COMM_WORLD, &tar_buf, &win);
/* Reset window buffer */
MPI_Win_lock(MPI_LOCK_SHARED, rank, 0, win);
for (i = 0; i < DATA_SIZE; i++) {
tar_buf[i].a = 0;
tar_buf[i].b = 0;
}
MPI_Win_unlock(rank, win);
MPI_Barrier(MPI_COMM_WORLD);
#else
MPI_Alloc_mem(sizeof(long_double_int_t) * DATA_SIZE, MPI_INFO_NULL, &tar_buf);
/* Reset window buffer */
for (i = 0; i < DATA_SIZE; i++) {
tar_buf[i].a = 0;
tar_buf[i].b = 0;
}
MPI_Win_create(tar_buf, sizeof(long_double_int_t) * DATA_SIZE, sizeof(long_double_int_t),
MPI_INFO_NULL, MPI_COMM_WORLD, &win);
#endif
if (rank == 0) {
MPI_Win_lock(MPI_LOCK_SHARED, 1, 0, win);
MPI_Accumulate(orig_buf, 1, vector_dtp, 1, 0, 1, vector_dtp, MPI_MAXLOC, win);
MPI_Win_unlock(1, win);
}
MPI_Barrier(MPI_COMM_WORLD);
if (rank == 1) {
MPI_Win_lock(MPI_LOCK_SHARED, 1, 0, win);
for (i = 0; i < DATA_SIZE; i++) {
if (i % 5 < 3) {
if (tar_buf[i].a != 1.0 || tar_buf[i].b != 1) {
errs++;
}
} else {
if (tar_buf[i].a != 0.0 || tar_buf[i].b != 0) {
errs++;
}
}
}
MPI_Win_unlock(1, win);
}
MPI_Win_free(&win);
MPI_Type_free(&vector_dtp);
MPI_Free_mem(orig_buf);
#ifndef USE_WIN_ALLOCATE
MPI_Free_mem(tar_buf);
#endif
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
|
