omp_single_copyprivate.c
1.09 KB
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
// RUN: %libomp-compile-and-run
#include "omp_testsuite.h"
#define DEBUG_TEST 0
int j;
#pragma omp threadprivate(j)
int test_omp_single_copyprivate()
{
int result;
int nr_iterations;
result = 0;
nr_iterations = 0;
#pragma omp parallel num_threads(4)
{
int i;
for (i = 0; i < LOOPCOUNT; i++)
{
#if DEBUG_TEST
int thread;
thread = omp_get_thread_num ();
#endif
#pragma omp single copyprivate(j)
{
nr_iterations++;
j = i;
#if DEBUG_TEST
printf ("thread %d assigns, j = %d, i = %d\n", thread, j, i);
#endif
}
#if DEBUG_TEST
#pragma omp barrier
#endif
#pragma omp critical
{
#if DEBUG_TEST
printf ("thread = %d, j = %d, i = %d\n", thread, j, i);
#endif
result = result + j - i;
}
#pragma omp barrier
} /* end of for */
} /* end of parallel */
return ((result == 0) && (nr_iterations == LOOPCOUNT));
}
int main()
{
int i;
int num_failed=0;
for(i = 0; i < REPETITIONS; i++) {
if(!test_omp_single_copyprivate()) {
num_failed++;
}
}
return num_failed;
}