d8/d6c/MixingModule__cfi_8py_source.html

import FWCore.ParameterSet.Config as cms


# from Configuration/Applications/data/DIGI-RECO.cfg

mix = cms.EDFilter("MixingModule",

    #      secsource input = EmbeddedRootSource

    #      {

    #

    # starting 050, you can skip secsource block at all if you don't

    # wnat to model mixing/pileup at all;

    # however, an at least "empty mixing" need to be present if you

    # want to perform Ecal/Hcal/CSC/DT digitization - those explicitely

    # require presence of CrossingFrame in the edm::Event

    #

    # alternatively, you can set averageNumber=0 if you don't want

    # to model the pileup

    #

    # to the secsource/EmbeddedRootSource, you can give just 1 file or more;

    # this files will make a "concatinated buffer", which will go circular

    # until the loop of primary events is done - thus, it'll never run out

    #

    # WARNING: you can only give miltiple files, if they're generated with

    #          identical sets of tracked parameters;

    #          for example, you canNOT give a file made with a single muon

    #          gun and a file made with a single pion gun, because PartID

    #          is a *tracked* parameter in the gun's PSet;

    #          however, you can merge together files made with other generators,

    #          because all parameters of it would be

    #          *untracked*

    #

    #         untracked vstring fileNames =

    #         {'file:/afs/cern.ch/cms/geant4rep/genntpl/muon_simhit_for_pileup.060pre1.root' }

    #         untracked vstring fileNames =

    #         {'file:simevent.root' }

    #         string type = "poisson"

    #         double averageNumber = 3      # setting this param. to 0 means "No pile-up",

    # that is, digitize current crossing only

    #         int32 minBunch = -3

    #         int32 maxBunch = 5

    #         int32 seed = 1234567

    #      }

    bunchspace = cms.int32(25),

    maxBunch = cms.int32(3),

    minBunch = cms.int32(-5), ## in terms of 25 ns


    Label = cms.string('')

)