parallel programing with openMP

Question

I just did an example project "Hello world" with openMP just to see how it works.

Here is the code:

    #include <omp.h>
    #include <iostream>
    using namespace std;


    int main()
    {
       #pragma omp parallel
       {
          cout <<"Hello World\n";
       }

          return 0;
     }

from what I understood it suppose to print "Hello world" multi-times (as the number of the processors, no?) I mean that if I have a dual core it suppose to print this line 2 times, am I right? anyway it prints just one time, and I wonder why? I'm using Visual Studio 10 and running the code from there..

OpenMP relies on compiler support to be available, it's not a library or some piece of source code from third parties, you should document yourself about how to do OpenMP programming with your compiler. — user2485710
– user2485710, Commented Nov 24, 2013 at 17:55

Eisenfrost · Accepted Answer · 2013-11-24 17:34:08Z

2

You should enable Open MP support in your Visual Studio (Properties -> C/C++ -> Language -> Open MP Support -> Yes).

answered Nov 24, 2013 at 17:34

Eisenfrost

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