Generator fragments for MC production
The package includes the datacards used for various generators inclusing POWHEG, MG5_aMC@NLO, Sherpa, Phantom, Pythia...
Further details are reported in the twiki: https://twiki.cern.ch/twiki/bin/view/CMS/GeneratorMain#How_to_produce_gridpacks
Instructions on how to use the fragments are here https://twiki.cern.ch/twiki/bin/view/CMS/GitRepositoryForGenProduction
