SPACK: 1-Install and configure

Choose a location where spack will be installed.

export SPACK=/export/spack
cd $SPACK
git clone https://github.com/spack/spack.git ~/spack
Cloning into .....
cd spack
#checkout the latest stable release
git checkout releases/v0.17
# source the setup-env.sh
. share/spack/setup-env.sh
# b