Reading CMS Files
Generator Events in CMS ROOT Files
It is possible to run Delphes on the generator events stored in CMS ROOT files (FEVT, RECO, AOD).
More details on the generator event format can be found at
https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookGenParticleCandidate
Setting up CMSSW Computing Environment
The instructions on how to setup CMSSW work area and runtime environment can be found at
https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookSetComputerNode
Building Delphes and DelphesCMSFWLite
Commands to download and build Delphes:
export LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH wget http://cp3.irmp.ucl.ac.be/downloads/Delphes-3.5.0.tar.gz tar -zxf Delphes-3.5.0.tar.gz cd Delphes-3.5.0 make -j 4
Running DelphesCMSFWLite
When running DelphesCMSFWLite
without parameters or when supplying an invalid command line, the following message will be shown:
./DelphesCMSFWLite Usage: DelphesCMSFWLite config_file output_file input_file(s) config_file - configuration file in Tcl format, output_file - output file in ROOT format, input_file(s) - input file(s) in ROOT format.
Running Delphes with CMS ROOT input files:
./DelphesCMSFWLite cards/delphes_card_CMS.tcl delphes_output.root input.root