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
|
<ompts:test>
<ompts:testdescription>Test which checks the static option of the omp for schedule directive.</ompts:testdescription>
<ompts:ompversion>2.0</ompts:ompversion>
<ompts:directive>omp for schedule(static)</ompts:directive>
<ompts:dependences>omp for nowait,omp flush,omp critical,omp single</ompts:dependences>
<ompts:testcode>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include "omp_testsuite.h"
#include "omp_my_sleep.h"
#define NUMBER_OF_THREADS 10
#define CFSMAX_SIZE 1000
#define MAX_TIME 0.01
#ifdef SLEEPTIME
#undef SLEEPTIME
#define SLEEPTIME 0.0005
#endif
int <ompts:testcode:functionname>omp_for_schedule_static</ompts:testcode:functionname> (FILE * logFile)
{
int threads;
int i,lasttid;
<ompts:orphan:vars>
int * tids;
int notout;
int maxiter;
int chunk_size;
</ompts:orphan:vars>
int counter = 0;
int tmp_count=1;
int lastthreadsstarttid = -1;
int result = 1;
chunk_size = 7;
tids = (int *) malloc (sizeof (int) * (CFSMAX_SIZE + 1));
notout = 1;
maxiter = 0;
#pragma omp parallel shared(tids,counter)
{ /* begin of parallel*/
#pragma omp single
{
threads = omp_get_num_threads ();
} /* end of single */
} /* end of parallel */
if (threads < 2)
{
printf ("This test only works with at least two threads");
fprintf (logFile,"This test only works with at least two threads");
return 0;
}
else
{
fprintf (logFile,"Using an internal count of %d\nUsing a specified chunksize of %d\n", CFSMAX_SIZE, chunk_size);
tids[CFSMAX_SIZE] = -1; /* setting endflag */
#pragma omp parallel shared(tids)
{ /* begin of parallel */
<ompts:orphan>
double count;
int tid;
int j;
tid = omp_get_thread_num ();
#pragma omp for nowait <ompts:check>schedule(static,chunk_size)</ompts:check>
for(j = 0; j < CFSMAX_SIZE; ++j)
{
count = 0.;
#pragma omp flush(maxiter)
if (j > maxiter)
{
#pragma omp critical
{
maxiter = j;
} /* end of critical */
}
/*printf ("thread %d sleeping\n", tid);*/
while (notout && (count < MAX_TIME) && (maxiter == j))
{
#pragma omp flush(maxiter,notout)
my_sleep (SLEEPTIME);
count += SLEEPTIME;
printf(".");
}
#ifdef VERBOSE
if (count > 0.) printf(" waited %lf s\n", count);
#endif
/*printf ("thread %d awake\n", tid);*/
tids[j] = tid;
#ifdef VERBOSE
printf("%d finished by %d\n",j,tid);
#endif
} /* end of for */
notout = 0;
#pragma omp flush(maxiter,notout)
</ompts:orphan>
} /* end of parallel */
/**** analysing the data in array tids ****/
lasttid = tids[0];
tmp_count = 0;
for (i = 0; i < CFSMAX_SIZE + 1; ++i)
{
/* If the work was done by the same thread increase tmp_count by one. */
if (tids[i] == lasttid) {
tmp_count++;
#ifdef VERBOSE
fprintf (logFile, "%d: %d \n", i, tids[i]);
#endif
continue;
}
/* Check if the next thread had has the right thread number. When finding
* threadnumber -1 the end should be reached.
*/
if (tids[i] == (lasttid + 1) % threads || tids[i] == -1) {
/* checking for the right chunk size */
if (tmp_count == chunk_size) {
tmp_count = 1;
lasttid = tids[i];
#ifdef VERBOSE
fprintf (logFile, "OK\n");
#endif
}
/* If the chunk size was wrong, check if the end was reached */
else {
if (tids[i] == -1) {
if (i == CFSMAX_SIZE) {
fprintf (logFile, "Last thread had chunk size %d\n", tmp_count);
break;
}
else {
fprintf (logFile, "ERROR: Last thread (thread with number -1) was found before the end.\n");
result = 0;
}
}
else {
fprintf (logFile, "ERROR: chunk size was %d. (assigned was %d)\n", tmp_count, chunk_size);
result = 0;
}
}
}
else {
fprintf(logFile, "ERROR: Found thread with number %d (should be inbetween 0 and %d).", tids[i], threads - 1);
result = 0;
}
#ifdef VERBOSE
fprintf (logFile, "%d: %d \n", i, tids[i]);
#endif
}
}
return result;
}
</ompts:testcode>
</ompts:test>
|
