[Download of OTFFT]
OTFFT is a high-speed FFT library using Stockham algorithm and Intel AVX/AVX-512 and Six-Step FFT algorithm and C++ template metaprogramming. In addition, OTFFT is the multi-thread FFT using OpenMP. And, OTFFT has the interface for C++ and C99 and Fortran2003. The license for OTFFT is the MIT license. Please download from the following links.