Installation of CosmoSIS for cosmological inference on candide

Installation process corresponds to (https://cosmosis.readthedocs.io/en/latest/intro/installation.html) section 'Installing manually on clusters and supercomputers'

On the login node:

module load gsl/2.7.1
module load fftw/3.3.10
module load gcc
module load openmpi

export GSL_LIB=/softs/gsl/2.7.1/lib
export GSL_INC=/softs/gsl/2.7.1/include
export CFITSIO_INC=/softs/cfitsio/4.3.1/include
export CFITSIO_LIB=/softs/cfitsio/4.3.1/lib
export FFTW_LIBRARY=/softs/fftw/3.3.10-gnu/lib
export FFTW_INCLUDE_DIR=/softs/fftw/3.3.10-gnu/include
export CXX=/softs/gcc/13.2.0-CentOS7/bin/g++
export CC=/softs/gcc/13.2.0-CentOS7/bin/gcc
export FC=/softs/gcc/13.2.0-CentOS7/bin/gfortran
export MPIFC=/softs/openmpi/5.0.0-torque-CentOS7/bin/mpif90
export COSMOSIS_ALT_COMPILERS=1

conda activate sp_validation

pip install cosmosis camb astropy fitsio cython==0.29.36 scikit-learn fast-pt (Beware Cython MUST be < 3.0)

source cosomosis-configure
git clone https://github.com/joezuntz/cosmosis-standard-library
cd cosmosis-standard-library
make

Start with the CosmoSIS manual section on installing manually on clusters and supercomputers, then review the module, environment-variable, conda, pip, and make commands listed here for the candide setup. Done means the repository has a clear, validated installation guide that preserves the required dependencies and commands.