SimTrackProducerForFastSim_cff.py

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import FWCore.ParameterSet.Config as cms

def customise(process):
        if hasattr(process.VtxSmeared,"X0"):
                VertexX = process.VtxSmeared.X0
                VertexY = process.VtxSmeared.Y0
                VertexZ = process.VtxSmeared.Z0

        if hasattr(process.VtxSmeared,"MeanX"):
                VertexX = process.VtxSmeared.MeanX
                VertexY = process.VtxSmeared.MeanY
                VertexZ = process.VtxSmeared.MeanZ


        #process.load('SimTransport.PPSProtonTransport.HectorTransport_cfi')
        process.load('SimTransport.PPSProtonTransport.TotemTransport_cfi')
        process.LHCTransport.VtxMeanX  = VertexX
        process.LHCTransport.VtxMeanY  = VertexY
        process.LHCTransport.VtxMeanZ = VertexZ

        ###################################
        process.load('FastSimulation.CTPPSSimHitProducer.CTPPSSimHitProducer_cfi')
        process.load('FastSimulation.CTPPSRecHitProducer.CTPPSRecHitProducer_cfi')
        process.load('FastSimulation.CTPPSFastTrackingProducer.CTPPSFastTrackingProducer_cfi')
        ###################################
        process.mix.mixObjects.mixSH.crossingFrames.append('CTPPSHits')
        process.mix.mixObjects.mixSH.input.append(cms.InputTag("CTPPSSimHits","CTPPSHits"))
        process.mix.mixObjects.mixSH.subdets.append('CTPPSHits')


        # PPS simHit sequence
        process.simulation_step.replace(process.psim,process.psim+process.CTPPSSimHits)
        # SimTransport on path
        process.transport_step = cms.Path(process.generator+process.LHCTransport)

        #process.schedule.insert(2,process.transport_step)

        process.load("IOMC.RandomEngine.IOMC_cff")
        process.RandomNumberGeneratorService.LHCTransport.engineName   = cms.untracked.string('TRandom3')

        # output
        outputModule = None
        outdict = process.outputModules_()
        if outdict.has_key("AODSIMoutput"):
            process.AODSIMoutput.outputCommands.extend(cms.untracked.vstring('keep *_CTPPSSimHits_*_*','keep *_CTPPSFastRecHits_*_*','keep *_CTPPSFastTracks_*_*'))
            process.reconstruction_step.replace(process.reconstruction,process.reconstruction*process.CTPPSFastRecHits*process.CTPPSFastTracks)
        elif outdict.has_key("FASTPUoutput"):
            process.FASTPUoutput.outputCommands.extend(cms.untracked.vstring('keep *_CTPPSSimHits_*_*'))

        return(process)