During data taking all the runs recorded by CMS are certified as good for physics analysis if all subdetectors, trigger, lumi and physics objects (tracking, electron, muon, photon, jet and MET) show the expected performance. Certification is based first on the offline shifters evaluation and later on the feedback provided by detector and Physics Object Group experts. Based on the above information, which is stored in a specific database called Run Registry, the Data Quality Monitoring group verifies the consistency of the certification and prepares a json file of certified runs to be used for physics analysis. For each reprocessing of the raw data, the above mentioned steps are repeated. For more information see:
Add the following lines in the configuration file for a cmsRun job: import FWCore.ParameterSet.Config as cms import FWCore.PythonUtilities.LumiList as LumiList goodJSON = 'Cert_160404-180252_7TeV_ReRecoNov08_Collisions11_JSON.txt' myLumis = LumiList.LumiList(filename = goodJSON).getCMSSWString().split(',') process.source.lumisToProcess = cms.untracked.VLuminosityBlockRange() process.source.lumisToProcess.extend(myLumis)
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