@@ -1,14 +1,28 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
#include <iostream>
|
2 |
|
3 |
-
int main() {
|
|
|
|
|
|
|
|
|
|
|
4 |
// ...
|
5 |
-
#pragma omp parallel
|
6 |
{
|
7 |
// ...
|
8 |
#pragma omp critical(cout)
|
9 |
-
std::cout << "Hello from
|
|
|
10 |
// ...
|
11 |
}
|
12 |
// ...
|
13 |
return 0;
|
14 |
}
|
1 |
+
/*
|
2 |
+
* Copyright 2021 Jeisson Hidalgo-Cespedes - Universidad de Costa Rica
|
3 |
+
* Creates a secondary thread that greets in the standard output
|
4 |
+
*/
|
5 |
+
|
6 |
+
#include <omp.h>
|
7 |
+
|
8 |
+
#include <cstdlib>
|
9 |
#include <iostream>
|
10 |
|
11 |
+
int main(int argc, char* argv[]) {
|
12 |
+
int thread_count = omp_get_max_threads();
|
13 |
+
if (argc >= 2) {
|
14 |
+
thread_count = atoi(argv[1]);
|
15 |
+
}
|
16 |
+
|
17 |
// ...
|
18 |
+
#pragma omp parallel num_threads(thread_count) default(none) shared(std::cout)
|
19 |
{
|
20 |
// ...
|
21 |
#pragma omp critical(cout)
|
22 |
+
std::cout << "Hello from " << omp_get_thread_num() << " thread of "
|
23 |
+
<< omp_get_num_threads() << std::endl;
|
24 |
// ...
|
25 |
}
|
26 |
// ...
|
27 |
return 0;
|
28 |
}
|