Fftw3
From hpcwiki
yum install fftw
yum install fftw-devel.x86_64
Install fftw3 from sources since the package is not available in yum:
wget ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5.tar.gz
tar -xzvf fftw-3.3.5.tar.gz
cd fftw-3.3.5
./configure --with-g77-wrappers --enable-mpi --enable-float --enable-single F77=mpif77
make
make install