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

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OpenMP in Small Bites/Worksharing
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|| 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
+
|| 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 <br /> !$omp parallel <br /> !$omp do <br /> DO i = 0, 99<br />  a[i] = b[i] + c[i]<br /> END DO </code>
!$omp parallel <br /> !$omp do <br /> DO i = 0, 99<br />  a[i] = b[i] + c[i]<br /> END DO </code>
 
 
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Revision as of 17:13, 30 October 2020



HPC.NRW
HPC.NRW
Other HPC Courses
1. Gprof Tutorial
2. Introduction to Linux in HPC
OpenMP in Small Bites
1. Overview
2. Worksharing
3. Data Scoping
4. Non-Uniform Memory Access







Video


Quiz

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

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

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   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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