fftw isn't exactly developing an optimal kernel from scratch. It's testing a range of different methods and simply choosing the best for one's parameters. Face

fftw isn't exactly developing an optimal kernel from scratch. It's testing a range of different methods and simply choosing the best for one's parameters. Facebook's Tensor Comprehensions framework, which generates CUDA kernels through a genetic algorithm, is closer to the sort of approach which would take greatest advantage of the hardware it's on.