#! /bin/bash

# This is an automated installation script to install Dakota automatically in $HOME/Dakota. 
# Execute this code as an user in your $HOME directory
# Read and try to understand what this script does before using it. 
# 
# This script should work for Ubuntu. For CENTOS 7, you may have to modify certain details of how to install the  mandatory required packages and the compiler mpicxx, and also on the path setting in the file $DAK_SRC/cmake/BuildDakotaCustom.cmake

# 1.
# Execute this script by issuing the command in a terminal:

##    chmod +x sh inst_dakota_genetic.txt; ./inst_dakota_genetic.txt
#

# 2. Mandatory requirements 1: (i) CMake 3.10, (ii) unzip, (iii) g++, (iv) boost. 
#    You must also ensure that CMake3 is in your PATH (check this by typing 'which cmake3' in a terminal. 
#    For Ubuntu, these packages can be installed by typing in the terminal
release=$(cat /etc/*-release | grep Ubuntu)
if [ ! -z "$release" ]
then
	sudo apt install -y cmake
	sudo apt install -y unzip
	sudo apt install -y g++
	sudo apt install -y liblapack libblas libboost-all-dev
fi

#
# For CENTOS 7, issue the command as su
release=$(cat /etc/*-release | grep CentOS) ### for Centos 7. 
if [ ! -z "$release" ]
then
	yum install -y cmake camke3
	yum install -y unzip
	yum install -y g++
	yum install -y libboost-all-dev
fi

#
# If this does not work, google to trouble shoot.
#
# 3. Mandatory requirements 2: (i) libblas, (ii) liblapack libraries, (iii) mpicxx compiler must exist in your LINUX. # In Ubuntu, these are sitting in the following PATH
#
# i. /usr/lib/libblas.so
# ii. /usr/lib/liblapack.so
# iii. /usr/bin/mpicxx
#
# For Centos 7, these are sitting in the following PATH
# i.      /usr/lib64/libblas.a
# ii.     /usr/lib64/liblapack.a
# iii.    /usr/lib64/openmpi/bin/mpicxx

# Check the existence of these libraries and compiler by issuing the commands in a terminal:

 		ls -la /usr/lib/libblas.so
 		ls -la /usr/lib/liblapack.so
 		ls -la /usr/bin/mpicxx
# or
		ls -la /usr/lib64/libblas.a
		ls -la /usr/lib64/liblapack.a
		ls -la /usr/lib64/openmpi/bin/mpicxx

# If the responses are positive, that means these libraries and mpicxx exist and are sitting in the indicated path. 
# If these libraries are not installed, you have to install them by using 

release=$(cat /etc/*-release | grep CentOS) ### for Centos 7. 
if [ ! -z "$release" ]
then
  yum install -y openmpi.x86_64 openmpi-devel.x86_64 liblapack blas-devel.x86_64 lapack-devel.x86_64  
fi

release=$(cat /etc/*-release | grep Ubuntu)
if [ ! -z "$release" ]
then
  sudo apt install liblapack libblas liblapack-dev libopenmpi-dev libblas-dev   
fi


# 4. Download and install dakota automatically from the internet

cd $HOME
mkdir dakota-download
dd=$HOME/dakota-download
cd $dd
## wget https://dakota.sandia.gov/sites/default/files/distributions/public/dakota-6.10.0-release-public-src-UI.zip
unzip dakota-6.10.0-release-public-src-UI.zip
cd dakota-6.10.0-release-public-src-UI
DAK_SRC=$(echo $PWD)
mkdir -p $HOME/dakota-build
DAK_BUILD=$HOME/dakota-build
export DAK_SRC=$DAK_SRC
export DAK_BUILD=$DAK_BUILD
cp $DAK_SRC/cmake/BuildDakotaTemplate.cmake \
        $DAK_SRC/cmake/BuildDakotaCustom.cmake

#5. Edit $DAK_SRC/cmake/BuildDakotaCustom.cmake file to reflect your platform configuration. 
# Specifically, for Ubuntu, you have to correctly specify the path to the liblapack.so, libblas.so libraries, and also that for the executable mpicxx in the following portion in $DAK_SRC/cmake/BuildDakotaCustom.cmake, i.e., 

#      set( DAKOTA_HAVE_MPI ON
#      CACHE BOOL "Build with MPI enabled" FORCE)
#       "/usr/lib/libblas.so"
#       "/usr/lib/liblapack.so"
#       "/usr/bin/mpicxx"
#       CACHE FILEPATH "Use MPI compiler wrapper" FORCE)
#
#
# Download $DAK_SRC/cmake/BuildDakotaCustom.cmake for Ubuntu
release=$(cat /etc/*-release | grep Ubuntu)
if [ ! -z "$release" ]
then
mv $DAK_SRC/cmake/BuildDakotaCustom.cmake $DAK_SRC/cmake/BuildDakotaCustom.cmake.orig
#wget http://comsics.usm.my/tlyoon/configrepo/howto/customise_centos/dakota/BuildDakotaCustom.cmake.Ubuntu
wget https://www.dropbox.com/s/lq4ujhtzwu0358u/BuildDakotaCustom.cmake.Ubuntu?dl=0 -O BuildDakotaCustom.cmake.Ubuntu
cp BuildDakotaCustom.cmake.Ubuntu $DAK_SRC/cmake/BuildDakotaCustom.cmake
fi

# 6. If your libblas, liblapack and mpicxx are sitting in a different path other than that specified in $DAK_SRC/cmake/BuildDakotaCustom.cmake, modify these lines in DAK_SRC/cmake/BuildDakotaCustom.cmake so that the paths are pointed to the corresponding path in your LINUX. 
#
#

release=$(cat /etc/*-release | grep CentOS) ### for Centos 7. 
if [ ! -z "$release" ]
# 7. In CENTOS 7, lapack and blas are sitting in /usr/lib64/. Type 
release=$(cat /etc/*-release | grep CentOS) ### for Centos 7. 
then
	ls -la /usr/lib64/liblapack.a
	ls -la /usr/lib64/libblas.a
# to check their existence. For mpicxx, it sits in /usr/lib64/openmpi/bin/ for CENTOS 7. Type 

	ls -la /usr/lib64/openmpi/bin/mpicxx
	
# to check for its existence. 
#
fi


# 8. For centos 7, the portion in the file $DAK_SRC/cmake/BuildDakotaCustom.cmake has to be modified to read 
#
#       set( DAKOTA_HAVE_MPI ON
#      CACHE BOOL "Build with MPI enabled" FORCE)
#       "/usr/lib64/libblas.a"
#       "/usr/lib64/liblapack.a"
#       "/usr/lib64/openmpi/bin/mpicxx"
#       CACHE FILEPATH "Use MPI compiler wrapper" FORCE)
#
# Download $DAK_SRC/cmake/BuildDakotaCustom.cmake for CentOS
release=$(cat /etc/*-release | grep CentOS)
if [ ! -z "$release" ]
then
mv $DAK_SRC/cmake/BuildDakotaCustom.cmake $DAK_SRC/cmake/BuildDakotaCustom.cmake.orig
#wget http://comsics.usm.my/tlyoon/configrepo/howto/customise_centos/dakota/BuildDakotaCustom.cmake.CentOS
wget https://www.dropbox.com/s/5i5s8g2l6e7csjb/BuildDakotaCustom.cmake.CentOS?dl=0 -O BuildDakotaCustom.cmake.CentOS
cp BuildDakotaCustom.cmake.CentOS $DAK_SRC/cmake/BuildDakotaCustom.cmake
fi

# 9. Begin compilation. The dakota executable is known as dakota. If it gets compiled correctly, it should be found in $HOME/Dakota/bin or $DAK_BUILD/bin or $DAK_SRC/bin

cd $DAK_BUILD
cmake -C $DAK_SRC/cmake/BuildDakotaCustom.cmake $DAK_SRC
make -j2
make install

echo export PATH="$DAK_INSTALL"/bin:"$DAK_INSTALL"/share/dakota/test:$PATH
echo export PYTHONPATH=$DAK_INSTALL/share/dakota/Python:$PYTHONPATH
echo 'export PATH="$DAK_INSTALL"/bin:"$DAK_INSTALL"/share/dakota/test:$PATH' >> ~/.bashrc
echo 'export PYTHONPATH=$DAK_INSTALL/share/dakota/Python:$PYTHONPATH' >> ~/.bashrc

# 9. Check whether dakota has been properly installed

	which dakota