fft
torch_to_nnef.op.aten.fft
fft_fft
Map PyTorch: 'aten:fft_fft' to NNEF.
fft_fftn
Map PyTorch: 'aten:fft_fftn' to NNEF (forward N-dim FFT).
fft_ifft
Map PyTorch: 'aten:fft_ifft' to NNEF.
fft_ifftn
Map PyTorch: 'aten:fft_ifftn' to NNEF (inverse N-dim FFT).
fft_irfft
Map PyTorch: 'aten:fft_irfft' to NNEF.
One-sided complex spectrum -> real signal of length n (defaults
to 2 * (K - 1) where K = input.shape[dim]). Reconstruct the
Hermitian-symmetric full spectrum: take the slice [1, K-1),
reverse it on dim, conjugate (negate imag), concat after the
input -> (..., n, 2); run an inverse FFT; divide by n; drop
the imaginary part.
fft_rfft
Map PyTorch: 'aten:fft_rfft' to NNEF.
Real input -> one-sided complex spectrum on dim. Mirrors
fft_fft (pad to complex, run tract_core_fft) then slices the
FFT axis to the first N // 2 + 1 bins.