#!/bin/bash

# Run this script as root to install intel's fftw2 and fftw3 libraries from intel ifort compiler version 11.1/072 
# Mandatory requirement: 
#
# 1. Assumes mkl bundled in ifort version 11.1.072 is already installed in /share/apps/intel/Compiler/11.1/072/mkl. 
# 2. Assume icc is already installed. By default icc is installed in /share/apps/intel/Compiler/11.0/081/bin. 
## fftw3 and fftw2 libraries would be found in /share/apps/intel/Compiler/11.1/072/mkl after successful installation
# 
# For CENTOS7, you may need the library file libstdc++.so.5 for this script compile fortran fftw using icc 11.0.081. it could be made available by
yum install compat-libstdc++-33
#####

### install fftw2xf
cd /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw2xf
#make libem64t compiler=gnu MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
make libem64t compiler=intel MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl

### install fftw2xc
cd /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw2xc
#make libem64t compiler=gnu MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
make libem64t compiler=intel MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl

### install fftw3xf
cd /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw3xf
#make libem64t compiler=gnu MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
make libem64t compiler=intel MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
ln -s  /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw3xf/libfftw3xf_intel.a /share/apps/intel/Compiler/11.1/072/mkl/lib/em64t/

### install fftw3xc
cd /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw3xc
#make libem64t compiler=gnu MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
make libem64t compiler=intel MKLROOT=/share/apps/intel/Compiler/11.1/072/mkl
ln -s  /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw3xc/libfftw3xc_intel.a /share/apps/intel/Compiler/11.1/072/mkl/lib/em64t/

## Note that the intel versions of fftw2/fftw3 source files are kept in /share/apps/intel/Compiler/11.1/072/mkl/interfaces/fftw2xf. The include folder for these libraries are to be found in /share/apps/intel/Compiler/11.1/072/mkl/include/fftw