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

Revision as of 19:10, 30 October 2020

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

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

3. Can the following code snipped be parallelized with the OpenMP for-construct with out breaking the semantic? Justify your answer.

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-|| C/C++:<br /> <code> int i; <br />#pragma omp parallel <br />#pragma omp for <br /> for (i = 0; i < 100; i++){ <div style="margin-left: 2em;"> <br /> a[i] = b[i] + c[i]; </div><br /> } </code> <br /> Fortran:<br /> <code> INTEGER :: i <br />!$omp parallel <br />!$omp do <br /> DO i = 0, 99<br /> a[i] = b[i] + c[i] <br /> END DO </code>
+|| C/C++:<br /> <code> int i; <br />#pragma omp parallel <br />#pragma omp for <br /> for (i = 0; i < 100; i++){ <div style="margin-left: 2em;"> a[i] = b[i] + c[i]; </div> } </code> <br /> Fortran:<br /> <code> INTEGER :: i <br />!$omp parallel <br />!$omp do <br /> DO i = 0, 99<br /> a[i] = b[i] + c[i] <br /> END DO </code>
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