wget -O f2py-2.7-setup --no-check-certificate https://llrgit.in2p3.fr/snippets/2/raw
sh f2py-2.7-setup

f2py_compiler = f2py-2.7

# Use modules to get newer software on the UIs
module use /opt/exp_soft/vo.llr.in2p3.fr/modulefiles
module use /opt/exp_soft/vo.llr.in2p3.fr/modulefiles_el7

# In particular, we want modern compilers
#module load compilers/gcc/7.1.1
module load compilers/gcc/6.3.1 

alias python3env="source /home/llr/cms/rembser/.python3_profile"

    python2_override=True,
    initial_command="PYTHONPATH=/usr/lib64/python",

wget https://launchpad.net/mg5amcnlo/2.0/2.6.x/+download/MG5_aMC_v2.6.7.tar.gz
tar -xf MG5_aMC_v2.6.7.tar.gz 

automatic_html_opening = False

Instructions on how to make sure madgraph in the madminer examples works: **Step 1**: Download and execute script that copies and patches `f2py` such that it uses python 2 even if python 3 environment is loaded: ``` wget -O f2py-2.7-setup --no-check-certificate https://llrgit.in2p3.fr/snippets/2/raw sh f2py-2.7-setup ``` **Step 2**: Set the f2py compiler in the `input/mg5_configuration.txt` file in your madgraph directory: ``` f2py_compiler = f2py-2.7 ``` **Step 3**: Add alias to your `.bash_profile` (or `.zshrc` if you use zsh) to get `gfortran` which madgrahph needs (more info on modules on [this page](https://llrgit.in2p3.fr/llr_comp_users/documents/-/wikis/sw_installations)): ```bash # Use modules to get newer software on the UIs module use /opt/exp_soft/vo.llr.in2p3.fr/modulefiles module use /opt/exp_soft/vo.llr.in2p3.fr/modulefiles_el7 # In particular, we want modern compilers #module load compilers/gcc/7.1.1 module load compilers/gcc/6.3.1 ``` **Step 4**: Add alias to your `.bash_profile` (or `.zshrc` if you use zsh) to load python 3 environment for madminer notebooks when you need it (especially before starting the notebook server with `jupyter-notebook`): ``` alias python3env="source /home/llr/cms/rembser/.python3_profile" ``` Either source the profile again or restart the session now. Of course nothing prevents you to directly put the sourcing of `.python3_profile` in your profile, but I like to have it as an alias to only enable it when needed. It clashes with the CMSSW environment otherwise. **Step 5**: Make sure to have the following parameters in your calls to `MadMiner.run()` or MadMiner.run_multiple()`: ```python python2_override=True, initial_command="PYTHONPATH=/usr/lib64/python", ``` This will ensure python 2 is used for madgraph and it does not accidentally try to load python 3 libraries. **Notes:** For convenience, here the commands to download and unpack the madgraph version used in madminer: ``` wget https://launchpad.net/mg5amcnlo/2.0/2.6.x/+download/MG5_aMC_v2.6.7.tar.gz tar -xf MG5_aMC_v2.6.7.tar.gz ``` I like to switch off the automatic HTML opening of madgraph, which you can also switch off in the `input/mg5_configuration.txt`: ``` automatic_html_opening = False ```