FYI: FFTS [1] in many (most?) cases outperforms FFTW, without runtime calibration. It gets there by using a smarter algorithm algorithm. It doesn't have the bel

FYI: FFTS [1] in many (most?) cases outperforms FFTW, without runtime calibration. It gets there by using a smarter algorithm algorithm. It doesn't have the bells and whistles of more complete libraries—e.g., restricted to power-of-two transforms for now—but hopefully this will change. [1] http://anthonix.com/ffts/ http://anthonix.com/ffts/