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Topic: simple example don't work
I want to test openMp. I want to launch 4 threads that execute in parallel on windows using VS 2010

#include <omp.h>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
int main (int argc, char *argv[])
int nthreads, tid;
int threads = 100;
int id ;
#pragma omp parallel(4)
threads = omp_get_num_threads();
id = omp_get_thread_num();
std::cout << "hello from thread: "<<id << "out of "<<std::endl;
std::cout << threads <<std::endl;
return 0;

The problem that I have always one thread which works.

by guest Sat Feb 25 21:26:21 UTC 2017


by iband Wed Sep 27 02:41:21 UTC 2017


by -khan Wed Sep 27 03:24:23 UTC 2017


by javid Wed Sep 27 03:52:22 UTC 2017


by smith Wed Sep 27 03:54:39 UTC 2017


by ghlin Wed Sep 27 04:02:26 UTC 2017


by lucas Wed Sep 27 04:05:39 UTC 2017


by cymru Wed Sep 27 04:14:40 UTC 2017


by ckman Wed Sep 27 04:28:33 UTC 2017


by lords Wed Sep 27 04:33:54 UTC 2017


by lords Wed Sep 27 04:36:30 UTC 2017


by lords Wed Sep 27 04:39:11 UTC 2017


by lords Wed Sep 27 04:52:14 UTC 2017


by lords Wed Sep 27 04:52:25 UTC 2017

by Sun Nov 26 03:13:09 UTC 2017
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