#! /bin/bash

#This script compile and install fftw 3.1.2 for a a Linux host in /usr/local/fftw3. Run this script as root
# assuming mpiifort is already installed
# Check whether mpif90 is installed by issuing 'mpif90 -v'
# Typical output will be like mpif90 for MPICH2 version 1.4.1p1

mkdir ~/configrepo
mkdir ~/configrepo/fftw312
cd ~/configrepo/fftw312
#rm fftw-3.1.2.tar.gz
wget http://www2.fizik.usm.my/configrepo/howto/fftw/fftw-3.1.2.tar.gz
gunzip fftw-3.1.2.tar.gz
tar -xvf fftw-3.1.2.tar
cd fftw-3.1.2
export CC="gcc"
export F77="f77 -m32"

./configure --with-g77-wrappers --enable-mpi --enable-threads --enable-openmp CC="gcc" FC="mpif90" --prefix=/usr/local/fftw3

make
make install
## the fftw3-2-1 lib is now be found in /usr/local/fftw3/lib and the include file is found in /usr/local/fftw3/include/