Fftw3

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Install stantard RPM for FFTW library (not epel). As superuser:

# yum install fftw
# yum install fftw-devel.x86_64

Install fftw3 from sources since the FFTW3 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
$ sudo make install