If installing pygram11 from conda-forge or via a binary wheel from PyPI, OpenMP acceleration should be available. If you don’t want to use conda-forge or you can’t use a binary wheel, keep reading.
If you are building from source, the
setup.py script tests to see
if OpenMP is available during installation. You can look at the
builds.sr.ht continuous integration configuration files to
see how builds are defined (Linux only) to ensure OpenMP acceleration
is available. For macOS, take a look at the GitHub actions
configuration files. We
libomp from Homebrew.
To check if OpenMP was detected and used while compiling the extension
pygram11._core, try the following:
>>> import pygram11 >>> pygram11.omp_available() True
Needless to say, if you see
False OpenMP acceleration isn’t
The histogramming functions use a named argument (
requesting OpenMP usage. If
omp function argument is ignored.
You can use
pygram11.omp_max_threads() to check the number of
threads that OpenMP has determined are available on your CPU.