next_fast_len

[jecampagne]

Hi,
I do not see any "scipy.fft.next_fast_len" equivalent, I miss it? any plan to implement it?
Thanks

[jakevdp]

Hi - in general functions in jax.scipy are implemented on an as-needed basis. In this case, I believe the next_fast_len function is an implementation-dependent thing, so to implement it correctly in JAX would involve looking into the fft algorithm used by various backends (CPU, GPU, TPU). It might take a bit of digging.

[jecampagne]

Ok.