Select the preferred backend module used for the spherical harmonic transforms in pyshtools.


select_preferred_backend_module([backend, nthreads])


backend : str, optional, default = ‘shtools’
Name of the preferred backend, either ‘shtools’ or ‘ducc’.
nthreads : int, optional, default = 1
Number of threads to use for the ‘ducc’ backend. Setting this parameter to 0 will use as many threads as there are hardware threads on the system.
Tags: python
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