Fitter code

• Link to the main webpage with documentation: https://cuddandr.gitlab.io/xsLLhFitter/
• Link to the GitLab repository hosting the code: https://gitlab.com/cuddandr/xsLLhFitter

Getting the files

• First clone the gitlab repository:

  git clone https://gitlab.com/cuddandr/xsLLhFitter.git

• Enter the xsLLhFitter directory:

  cd xsLLhFitter/

• Then checkout the fluxpar branch (or the branch you want to use):

  git checkout remotes/origin/fluxpar

• Create your own branch (called my_branch here but you can call it whatever you want) which will be a copy of the fluxpar branch:

  git checkout -b my_branch

• Currently my_branch is in the detached head state. To change this and be able to pull changes from the GitLab repository, do the following:

  git branch --set-upstream-to=remotes/origin/fluxpar my_branch

• Now if you want to update and incorporate the latest changes from the repository, do this:

  git pull

Compiling

• To compile we need:
  • GCC 4.8.5+ or Clang 3.3+ (a C++11 enabled compiler). You can check the version with

    gcc --version

    or

    clang --version

  • CMake 3.5+
  • ROOT 6
• On LXPLUS, source the following each time you plan to work with the fitter:

  export PATH=/cvmfs/sft.cern.ch/lcg/contrib/CMake/3.5.2/Linux-x86_64/bin:${PATH}

  source /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.22.00/x86_64-centos7-gcc48-opt/bin/thisroot.sh

• Then source the setup.sh script inside the xsLLhFitter directory:

  source setup.sh

• The first time this script is run it will notify you that it cannot find the build setup script, this is normal. The fitter is designed to be built in a build directory specified by the user and is configured using CMake.
• Now we build the fitter:

  mkdir build; cd build

  cmake ../

  make install -j

  cd ../

  source setup.sh

CasparMariaSchlosser - 2020-04-04