Installing FFTW

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Run the following command to decompress the FFTW installation package:

   tar -xvf fftw-3.3.8.tar.gz

3. Run the following command to go to the directory generated after decompression:

   cd fftw-3.3.8

4. Run the following command to perform the configuration:

   ./configure --prefix=/path/to/FFTW --enable-shared --enable-static --enable-fma --enable-neon

5. Run the following commands to perform the compilation and installation:

   make -j 128
   make install

6. Run the following command to configure the FFTW environment variables required for installing the main program:

   export CPATH=/path/to/FFTW/include:$CPATH