I am new to Fortran. Is there an ultimate best library for FFT for Fortran (95)?(adsbygoogle = window.adsbygoogle || []).push({});

I found this one FFTPACK. I am not sure if this is the best one. Is there anywhere a simple example how to use it?

I have huge time files (260 MB each) that I like to read in Fortran and perform FFT and store the results in HDF5 format. I almost do the same thing with C++ using FFTW, but I it is a bit slow. There is a wrapper for FFTW for Fortran, but I wondered if a pure Fortran routine will be faster?

thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Fortran FFT library

**Physics Forums | Science Articles, Homework Help, Discussion**