Difference between revisions of "OpenMP in Small Bites/Worksharing"

Revision as of 17:09, 30 October 2020

What is most commenly used worksharing construct in OpenMP to distribute work among loop interations?

Give an example for a parallel vector addition using OpenMP worksharing!

   Give an example for a parallel vector addition using OpenMP worksharing!
   (C/C++:

How can you control the number of threads?

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-|title = What is one of the key concepts of the OpenMP execution model?
+|title = Give an example for a parallel vector addition using OpenMP worksharing!
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 |type="()"}
 + Click and submit to see the answer
-|| Fork-Join: An OpenMP program starts with just one worker thread (<code>master</code>). The <code>worker</code> threads are spawned in the parallel region and form a <code>team</code> of threads together with the <code>master</code>. They all join at the end of a parallel region.
+|| Fork-Join: C/C++:<br /> <code> int i; <br /> #pragma omp parallel <br /> #pragma omp for <br /> for (i = 0; i < 100; i++){ <br />  a[i] = b[i] + c[i];<br /> } </code> <br /> Fortran: <br /> <code> INTEGER :: i
+!$omp parallel <br /> !$omp do <br /> DO i = 0, 99<br />   a[i] = b[i] + c[i]<br /> END DO </code>
 </quiz>
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+    Give an example for a parallel vector addition using OpenMP worksharing!
+    (C/C++:
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