scipy.fft.set_global_backend

scipy.fft.set_global_backend(backend)

Sets the global fft backend

The global backend has higher priority than registered backends, but lower priority than context-specific backends set with set_backend.

Parameters

backend: {object, ‘scipy’}

The backend to use. Can either be a str containing the name of a known backend {‘scipy’} or an object that implements the uarray protocol.

Raises

ValueError: If the backend does not implement numpy.scipy.fft.

Notes

This will overwrite the previously set global backend, which, by default, is the SciPy implementation.

Examples

We can set the global fft backend:

>>> from scipy.fft import fft, set_global_backend
>>> set_global_backend("scipy")  # Sets global backend. "scipy" is the default backend.
>>> fft([1])  # Calls the global backend
array([1.+0.j])