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Building OpenMP program with YAML configuration

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OpenMP YAML example

.. program-output:: cat scripts/OpenMP_yaml/omp_getEnvInfo.c.yaml

This OpenMP test example can be build for GCC software as follows

buildtest build -s GCCcore/6.4.0 --shell csh

This will generate the following script

.. program-output:: cat scripts/OpenMP_yaml/omp_getEnvInfo.csh

buildtest can generate a range of tests for parameterizing OMP_NUM_THREADS by using threadrange keyword. This can be useful for viewing performance of application by varying thread count.

Matrix Multiplication with OpenMP Parameterization

For instance we have a matrix multiplication example we want to build with buildtest for varying parameters, we can do that as follows.

Let's create a YAML file with the content

.. program-output:: cat scripts/OpenMP_yaml/omp_mm.c.yaml

This will generate the following test scripts.

.. program-output:: cat scripts/OpenMP_yaml/omp_mm_listing.txt

buildtest will generate the same test script with different values of OMP_NUM_THREAD before running the program.

.. program-output:: cat scripts/OpenMP_yaml/omp_mm.c_nthread_2.csh