title: OpenMp Coding: warning: ignoring #pragma omp parallel
body: <p>I am getting this warning during compilation of a C code with OpenMP directives on Linux:</p>
  
  <pre><code>warning: ignoring #pragma omp parallel
  </code></pre>
  
  <p>Gcc version is 4.4. </p>
  
  <p>Is it only a warning I should not care about? Will the execution be in parallel?. I would like a solution with a some explanation. </p>
  
  <p>I have provide <code>-fopenmp</code> with the <code>make</code> command, but gcc doesn't accept that, otherwise for single compilation of file, i.e. <code>gcc -fopenmp</code> works alright.</p>