FFTJetProducer Class Reference

#include <RecoJets/FFTJetProducers/plugins/FFTJetProducer.h>

Inheritance diagram for FFTJetProducer:

Public Types
typedef fftjet::RecombinedJet < fftjetcms::VectorLike >	RecoFFTJet
enum	Resolution { FIXED = 0, MAXIMALLY_STABLE, GLOBALLY_ADAPTIVE, LOCALLY_ADAPTIVE }
typedef fftjet::SparseClusteringTree < fftjet::Peak, long >	SparseTree
enum	StatusBits {   RESOLUTION = 0xff, CONSTITUENTS_RESUMMED = 0x100, PILEUP_CALCULATED = 0x200, PILEUP_SUBTRACTED_4VEC = 0x400,   PILEUP_SUBTRACTED_PT = 0x800 }
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType
typedef WorkerT< EDProducer >	WorkerType
Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Public Types inherited from fftjetcms::FFTJetInterface
enum	JetType {   BASICJET = 0, GENJET, CALOJET, PFJET,   TRACKJET, JPTJET }

Public Member Functions
	FFTJetProducer (const edm::ParameterSet &)
virtual	~FFTJetProducer ()
Public Member Functions inherited from edm::EDProducer
	EDProducer ()
virtual	~EDProducer ()
Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()
Public Member Functions inherited from fftjetcms::FFTJetInterface
virtual	~FFTJetInterface ()

Static Public Member Functions
static Resolution	parse_resolution (const std::string &name)
Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Static Public Member Functions inherited from fftjetcms::FFTJetInterface
static JetType	parse_jet_type (const std::string &name)

Protected Member Functions
virtual void	assignMembershipFunctions (std::vector< fftjet::Peak > *preclusters)
virtual void	beginJob ()
virtual void	endJob ()
virtual std::auto_ptr < fftjetcms::AbsBgFunctor >	parse_bgMembershipFunction (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor2< double, RecoFFTJet, RecoFFTJet > >	parse_jetDistanceCalc (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::ScaleSpaceKernel >	parse_jetMembershipFunction (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	parse_memberFactorCalcJet (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	parse_memberFactorCalcPeak (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< bool, fftjet::Peak > >	parse_peakSelector (const edm::ParameterSet &)
virtual std::auto_ptr < fftjetcms::AbsPileupCalculator >	parse_pileupDensityCalc (const edm::ParameterSet &ps)
virtual std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	parse_recoScaleCalcJet (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	parse_recoScaleCalcPeak (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	parse_recoScaleRatioCalcJet (const edm::ParameterSet &)
virtual std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	parse_recoScaleRatioCalcPeak (const edm::ParameterSet &)
virtual void	produce (edm::Event &, const edm::EventSetup &)
virtual void	selectPreclusters (const SparseTree &tree, const fftjet::Functor1< bool, fftjet::Peak > &peakSelector, std::vector< fftjet::Peak > *preclusters)
void	selectTreeNodes (const SparseTree &tree, const fftjet::Functor1< bool, fftjet::Peak > &peakSelect, std::vector< SparseTree::NodeId > *nodes)
Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const
Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)
Protected Member Functions inherited from fftjetcms::FFTJetInterface
template<class Ptr >
void	checkConfig (const Ptr &ptr, const char *message)
void	discretizeEnergyFlow ()
	FFTJetInterface (const edm::ParameterSet &)
double	getEventScale () const
void	loadInputCollection (const edm::Event &)
bool	storeInSinglePrecision () const
const reco::Particle::Point &	vertexUsed () const

Private Types
typedef fftjet::AbsRecombinationAlg < fftjetcms::Real, fftjetcms::VectorLike, fftjetcms::BgData >	GridAlg
typedef fftjet::AbsVectorRecombinationAlg < fftjetcms::VectorLike, fftjetcms::BgData >	RecoAlg

Private Member Functions
void	buildGridAlg ()
bool	checkConvergence (const std::vector< RecoFFTJet > &previousIterResult, std::vector< RecoFFTJet > &thisIterResult)
void	determineGriddedConstituents ()
void	determinePileup ()
virtual void	determinePileupDensity (const edm::Event &iEvent, const edm::InputTag &label, std::auto_ptr< fftjet::Grid2d< fftjetcms::Real > > &density)
void	determineVectorConstituents ()
	FFTJetProducer ()
	FFTJetProducer (const FFTJetProducer &)
unsigned	iterateJetReconstruction ()
template<class Real >
void	loadSparseTreeData (const edm::Event &)
template<typename Jet >
void	makeProduces (const std::string &alias, const std::string &tag)
FFTJetProducer &	operator= (const FFTJetProducer &)
void	prepareRecombinationScales ()
void	removeFakePreclusters ()
void	saveResults (edm::Event &iEvent, const edm::EventSetup &, unsigned nPreclustersFound)
template<typename Jet >
void	writeJets (edm::Event &iEvent, const edm::EventSetup &)

Static Private Member Functions
static bool	loadEnergyFlow (const edm::Event &iEvent, const edm::InputTag &label, std::auto_ptr< fftjet::Grid2d< fftjetcms::Real > > &flow)
static void	setJetStatusBit (RecoFFTJet *jet, int mask, bool value)

Private Attributes
const bool	assignConstituents
std::auto_ptr < fftjetcms::AbsBgFunctor >	bgMembershipFunction
const bool	calculatePileup
std::vector< unsigned >	cellCountsVec
std::vector< std::vector < reco::CandidatePtr > >	constituents
const double	convergenceDistance
std::vector< double >	doubleBuf
const double	fixedScale
std::auto_ptr< GridAlg >	gridAlg
const double	gridScanMaxEta
std::auto_ptr< std::vector < double > >	iniScales
const bool	isCrisp
unsigned	iterationsPerformed
std::vector< RecoFFTJet >	iterJets
std::vector< fftjet::Peak >	iterPreclusters
std::auto_ptr < fftjet::Functor2< double, RecoFFTJet, RecoFFTJet > >	jetDistanceCalc
std::auto_ptr < fftjet::ScaleSpaceKernel >	jetMembershipFunction
const unsigned	maxIterations
unsigned	maxLevel
const double	maxStableScale
std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	memberFactorCalcJet
std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	memberFactorCalcPeak
std::vector < fftjet::AbsKernel2d * >	memFcns2dVec
unsigned	minLevel
const double	minStableScale
const edm::ParameterSet	myConfiguration
const unsigned	nClustersRequested
const unsigned	nJetsRequiredToConverge
std::vector< SparseTree::NodeId >	nodes
const double	noiseLevel
std::vector< unsigned >	occupancy
std::auto_ptr < fftjet::Functor1< bool, fftjet::Peak > >	peakSelector
std::vector < fftjetcms::VectorLike >	pileup
std::auto_ptr < fftjetcms::AbsPileupCalculator >	pileupDensityCalc
std::auto_ptr< fftjet::Grid2d < fftjetcms::Real > >	pileupEnergyFlow
const edm::InputTag	pileupLabel
std::vector< fftjet::Peak >	preclusters
std::auto_ptr< RecoAlg >	recoAlg
std::vector< RecoFFTJet >	recoJets
const std::string	recombinationAlgorithm
const double	recombinationDataCutoff
std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	recoScaleCalcJet
std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	recoScaleCalcPeak
std::auto_ptr < fftjet::Functor1< double, RecoFFTJet > >	recoScaleRatioCalcJet
std::auto_ptr < fftjet::Functor1< double, fftjet::Peak > >	recoScaleRatioCalcPeak
Resolution	resolution
const bool	resumConstituents
const bool	reuseExistingGrid
SparseTree	sparseTree
const double	stabilityAlpha
const bool	subtractPileup
const bool	subtractPileupAs4Vec
std::vector< double >	thresholds
const edm::InputTag	treeLabel
fftjetcms::VectorLike	unclustered
const double	unlikelyBgWeight
double	unused
unsigned	usedLevel
const bool	useGriddedAlgorithm

Additional Inherited Members
Protected Attributes inherited from fftjetcms::FFTJetInterface
const AnomalousTower	anomalous
std::vector< unsigned >	candidateIndex
const bool	doPVCorrection
std::auto_ptr< fftjet::Grid2d < fftjetcms::Real > >	energyFlow
const std::vector< double >	etaDependentMagnutideFactors
std::vector < fftjetcms::VectorLike >	eventData
edm::Handle< reco::CandidateView >	inputCollection
const edm::InputTag	inputLabel
const JetType	jetType
const std::string	outputLabel
const edm::InputTag	srcPVs

Detailed Description

Description: makes jets using FFTJet clustering tree

Implementation: [Notes on implementation]

Description: makes jets using FFTJet clustering tree

Implementation: If you want to change the jet algorithm functionality (for example, by providing your own jet membership function), derive from this class and override the appropriate parser method (for example, parse_jetMembershipFunction). At the end of your own parser, don't forget to call the parser of the base class in order to get the default behavior when your special configuration is not provided (this is known as the "chain-of-responsibility" design pattern). If you also need to override "beginJob" and/or "produce" methods, the first thing to do in your method is to call the corresponding method of this base.

Definition at line 58 of file FFTJetProducer.h.

Member Typedef Documentation

typedef fftjet::AbsRecombinationAlg< fftjetcms::Real,fftjetcms::VectorLike,fftjetcms::BgData> FFTJetProducer::GridAlg

private

Definition at line 165 of file FFTJetProducer.h.

typedef fftjet::AbsVectorRecombinationAlg< fftjetcms::VectorLike,fftjetcms::BgData> FFTJetProducer::RecoAlg

private

Definition at line 163 of file FFTJetProducer.h.

typedef fftjet::RecombinedJet<fftjetcms::VectorLike> FFTJetProducer::RecoFFTJet

Definition at line 62 of file FFTJetProducer.h.

typedef fftjet::SparseClusteringTree<fftjet::Peak,long> FFTJetProducer::SparseTree

Definition at line 63 of file FFTJetProducer.h.

Member Enumeration Documentation

enum FFTJetProducer::Resolution

Enumerator
FIXED
MAXIMALLY_STABLE
GLOBALLY_ADAPTIVE
LOCALLY_ADAPTIVE

Definition at line 75 of file FFTJetProducer.h.

    {
        FIXED = 0,
        MAXIMALLY_STABLE,
        GLOBALLY_ADAPTIVE,
        LOCALLY_ADAPTIVE
    };

enum FFTJetProducer::StatusBits

Enumerator
RESOLUTION
CONSTITUENTS_RESUMMED
PILEUP_CALCULATED
PILEUP_SUBTRACTED_4VEC
PILEUP_SUBTRACTED_PT

Definition at line 66 of file FFTJetProducer.h.

    {
        RESOLUTION = 0xff,
        CONSTITUENTS_RESUMMED = 0x100,
        PILEUP_CALCULATED = 0x200,
        PILEUP_SUBTRACTED_4VEC = 0x400,
        PILEUP_SUBTRACTED_PT = 0x800
    };

Constructor & Destructor Documentation

FFTJetProducer::FFTJetProducer ( const edm::ParameterSet &  ps )

explicit

Definition at line 126 of file FFTJetProducer.cc.

References assignConstituents, fftjetcms::FFTJetInterface::checkConfig(), edm::hlt::Exception, fftjetcms::fftjet_ScaleSet_parser(), edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), iniScales, jet_type_switch, makeProduces(), fftjetcms::FFTJetInterface::outputLabel, resumConstituents, and python.multivaluedict::sort().

    : FFTJetInterface(ps),
      myConfiguration(ps),
      init_param(edm::InputTag, treeLabel),
      init_param(bool, useGriddedAlgorithm),
      init_param(bool, reuseExistingGrid),
      init_param(unsigned, maxIterations),
      init_param(unsigned, nJetsRequiredToConverge),
      init_param(double, convergenceDistance),
      init_param(bool, assignConstituents),
      init_param(bool, resumConstituents),
      init_param(bool, calculatePileup),
      init_param(bool, subtractPileup),
      init_param(bool, subtractPileupAs4Vec),
      init_param(edm::InputTag, pileupLabel),
      init_param(double, fixedScale),
      init_param(double, minStableScale),
      init_param(double, maxStableScale),
      init_param(double, stabilityAlpha),
      init_param(double, noiseLevel),
      init_param(unsigned, nClustersRequested),
      init_param(double, gridScanMaxEta),
      init_param(std::string, recombinationAlgorithm),
      init_param(bool, isCrisp),
      init_param(double, unlikelyBgWeight),
      init_param(double, recombinationDataCutoff),
      resolution(parse_resolution(ps.getParameter<std::string>("resolution"))),

      minLevel(0),
      maxLevel(0),
      usedLevel(0),
      unused(0.0),
      iterationsPerformed(1U),
      constituents(200)
{
    // Check that the settings make sense
    if (resumConstituents && !assignConstituents)
        throw cms::Exception("FFTJetBadConfig") 
            << "Can't resum constituents if they are not assigned"
            << std::endl;

    produces<reco::FFTJetProducerSummary>(outputLabel);
    const std::string alias(ps.getUntrackedParameter<std::string>(
                                "alias", outputLabel));
    jet_type_switch(makeProduces, alias, outputLabel);

    // Build the set of pattern recognition scales.
    // This is needed in order to read the clustering tree
    // from the event record.
    iniScales = fftjet_ScaleSet_parser(
        ps.getParameter<edm::ParameterSet>("InitialScales"));
    checkConfig(iniScales, "invalid set of scales");
    std::sort(iniScales->begin(), iniScales->end(), std::greater<double>());

    // Most of the configuration has to be performed inside
    // the "beginJob" method. This is because chaining of the
    // parsers between this base class and the derived classes
    // can not work from the constructor of the base class.
}

FFTJetProducer::~FFTJetProducer ( )

virtual

Definition at line 187 of file FFTJetProducer.cc.

{
}

FFTJetProducer::FFTJetProducer ( )

private

FFTJetProducer::FFTJetProducer ( const FFTJetProducer &  )

private

Member Function Documentation

void FFTJetProducer::assignMembershipFunctions ( std::vector< fftjet::Peak > *  preclusters )

protectedvirtual

Definition at line 909 of file FFTJetProducer.cc.

Referenced by produce().

{
}

void FFTJetProducer::beginJob ( void  )

protectedvirtual

Reimplemented from edm::EDProducer.

Definition at line 915 of file FFTJetProducer.cc.

References assignConstituents, bgMembershipFunction, buildGridAlg(), calculatePileup, fftjetcms::FFTJetInterface::checkConfig(), fftjetcms::FFTJetInterface::energyFlow, reco::tau::disc::Eta(), edm::hlt::Exception, fftjetcms::fftjet_Grid2d_parser(), edm::ParameterSet::getParameter(), isCrisp, jetDistanceCalc, jetMembershipFunction, maxIterations, memberFactorCalcJet, memberFactorCalcPeak, myConfiguration, NULL, parse_bgMembershipFunction(), parse_jetDistanceCalc(), parse_jetMembershipFunction(), parse_memberFactorCalcJet(), parse_memberFactorCalcPeak(), parse_peakSelector(), parse_pileupDensityCalc(), parse_recoScaleCalcJet(), parse_recoScaleCalcPeak(), parse_recoScaleRatioCalcJet(), parse_recoScaleRatioCalcPeak(), peakSelector, colinearityKinematic::Phi, pileupDensityCalc, pileupEnergyFlow, recoAlg, recombinationAlgorithm, recoScaleCalcJet, recoScaleCalcPeak, recoScaleRatioCalcJet, recoScaleRatioCalcPeak, reuseExistingGrid, unlikelyBgWeight, and useGriddedAlgorithm.

{
    const edm::ParameterSet& ps(myConfiguration);

    // Parse the peak selector definition
    peakSelector = parse_peakSelector(ps);
    checkConfig(peakSelector, "invalid peak selector");

    jetMembershipFunction = parse_jetMembershipFunction(ps);
    checkConfig(jetMembershipFunction, "invalid jet membership function");

    bgMembershipFunction = parse_bgMembershipFunction(ps);
    checkConfig(bgMembershipFunction, "invalid noise membership function");

    // Build the energy recombination algorithm
    if (!useGriddedAlgorithm)
    {
        fftjet::DefaultVectorRecombinationAlgFactory<
            VectorLike,BgData,VBuilder> factory;
        if (factory[recombinationAlgorithm] == NULL)
            throw cms::Exception("FFTJetBadConfig")
                << "Invalid vector recombination algorithm \""
                << recombinationAlgorithm << "\"" << std::endl;
        recoAlg = std::auto_ptr<RecoAlg>(
            factory[recombinationAlgorithm]->create(
                jetMembershipFunction.get(),
                &VectorLike::Et, &VectorLike::Eta, &VectorLike::Phi,
                bgMembershipFunction.get(),
                unlikelyBgWeight, isCrisp, false, assignConstituents));
    }
    else if (!reuseExistingGrid)
    {
        energyFlow = fftjet_Grid2d_parser(
            ps.getParameter<edm::ParameterSet>("GridConfiguration"));
        checkConfig(energyFlow, "invalid discretization grid");
        buildGridAlg();
    }

    // Create the grid subsequently used for pile-up subtraction
    if (calculatePileup)
    {
        pileupEnergyFlow = fftjet_Grid2d_parser(
            ps.getParameter<edm::ParameterSet>("PileupGridConfiguration"));
        checkConfig(pileupEnergyFlow, "invalid pileup density grid");

        pileupDensityCalc = parse_pileupDensityCalc(ps);
        checkConfig(pileupDensityCalc, "invalid pile-up density calculator");
    }

    // Parse the calculator of the recombination scale
    recoScaleCalcPeak = parse_recoScaleCalcPeak(ps);
    checkConfig(recoScaleCalcPeak, "invalid spec for the "
                "reconstruction scale calculator from peaks");

    // Parse the calculator of the recombination scale ratio
    recoScaleRatioCalcPeak = parse_recoScaleRatioCalcPeak(ps);
    checkConfig(recoScaleRatioCalcPeak, "invalid spec for the "
                "reconstruction scale ratio calculator from peaks");

    // Calculator for the membership function factor
    memberFactorCalcPeak = parse_memberFactorCalcPeak(ps);
    checkConfig(memberFactorCalcPeak, "invalid spec for the "
                "membership function factor calculator from peaks");

    if (maxIterations > 1)
    {
        // We are going to run iteratively. Make required objects.
        recoScaleCalcJet = parse_recoScaleCalcJet(ps);
        checkConfig(recoScaleCalcJet, "invalid spec for the "
                    "reconstruction scale calculator from jets");

        recoScaleRatioCalcJet = parse_recoScaleRatioCalcJet(ps);
        checkConfig(recoScaleRatioCalcJet, "invalid spec for the "
                    "reconstruction scale ratio calculator from jets");

        memberFactorCalcJet = parse_memberFactorCalcJet(ps);
        checkConfig(memberFactorCalcJet, "invalid spec for the "
                    "membership function factor calculator from jets");

        jetDistanceCalc = parse_jetDistanceCalc(ps);
        checkConfig(memberFactorCalcJet, "invalid spec for the "
                    "jet distance calculator");
    }
}

void FFTJetProducer::buildGridAlg ( )

private

Definition at line 373 of file FFTJetProducer.cc.

References assignConstituents, bgMembershipFunction, fftjetcms::FFTJetInterface::energyFlow, edm::hlt::Exception, gridAlg, gridScanMaxEta, isCrisp, jetMembershipFunction, NULL, recombinationAlgorithm, recombinationDataCutoff, and unlikelyBgWeight.

Referenced by beginJob(), and produce().

{
    int minBin = energyFlow->getEtaBin(-gridScanMaxEta);
    if (minBin < 0)
        minBin = 0;
    int maxBin = energyFlow->getEtaBin(gridScanMaxEta) + 1;
    if (maxBin < 0)
        maxBin = 0;
    
    fftjet::DefaultRecombinationAlgFactory<
        Real,VectorLike,BgData,VBuilder> factory;
    if (factory[recombinationAlgorithm] == NULL)
        throw cms::Exception("FFTJetBadConfig")
            << "Invalid grid recombination algorithm \""
            << recombinationAlgorithm << "\"" << std::endl;
    gridAlg = std::auto_ptr<GridAlg>(
        factory[recombinationAlgorithm]->create(
            jetMembershipFunction.get(),
            bgMembershipFunction.get(),
            unlikelyBgWeight, recombinationDataCutoff,
            isCrisp, false, assignConstituents, minBin, maxBin));
}

bool FFTJetProducer::checkConvergence ( const std::vector< RecoFFTJet > &  previousIterResult, std::vector< RecoFFTJet > &  thisIterResult  )

private

Definition at line 426 of file FFTJetProducer.cc.

References convergenceDistance, i, jetDistanceCalc, and GetRecoTauVFromDQM_MC_cff::next.

Referenced by iterateJetReconstruction().

{
    fftjet::Functor2<double,RecoFFTJet,RecoFFTJet>&
        distanceCalc(*jetDistanceCalc);

    const unsigned nJets = previous.size();
    if (nJets != nextSet.size())
        return false;

    const RecoFFTJet* prev = &previous[0];
    RecoFFTJet* next = &nextSet[0];

    // Calculate convergence distances for all jets
    bool converged = true;
    for (unsigned i=0; i<nJets; ++i)
    {
        const double d = distanceCalc(prev[i], next[i]);
        next[i].setConvergenceDistance(d);
        if (i < nJetsRequiredToConverge && d > convergenceDistance)
            converged = false;
    }

    return converged;
}

void FFTJetProducer::determineGriddedConstituents ( )

private

Definition at line 530 of file FFTJetProducer.cc.

References fftjetcms::FFTJetInterface::candidateIndex, constituents, fftjetcms::FFTJetInterface::energyFlow, fftjetcms::FFTJetInterface::eventData, g, gridAlg, i, fftjetcms::FFTJetInterface::inputCollection, and recoJets.

Referenced by produce().

{
    const unsigned nJets = recoJets.size();
    const unsigned* clusterMask = gridAlg->getClusterMask();
    const int nEta = gridAlg->getLastNEta();
    const int nPhi = gridAlg->getLastNPhi();
    const fftjet::Grid2d<Real>& g(*energyFlow);

    const unsigned nInputs = eventData.size();
    const VectorLike* inp = nInputs ? &eventData[0] : 0;
    const unsigned* candIdx = nInputs ? &candidateIndex[0] : 0;
    for (unsigned i=0; i<nInputs; ++i)
    {
        const VectorLike& item(inp[i]);
        const int iPhi = g.getPhiBin(item.Phi());
        const int iEta = g.getEtaBin(item.Eta());
        const unsigned mask = iEta >= 0 && iEta < nEta ?
            clusterMask[iEta*nPhi + iPhi] : 0;
        assert(mask <= nJets);
        constituents[mask].push_back(inputCollection->ptrAt(candIdx[i]));
    }
}

void FFTJetProducer::determinePileup ( )

private

Definition at line 1076 of file FFTJetProducer.cc.

References cellCountsVec, doubleBuf, dPhi(), eta(), f, g, i, isCrisp, metsig::jet, jetMembershipFunction, reco::btau::jetPhi, M_PI, memberFactorCalcJet, memFcns2dVec, pileup, pileupEnergyFlow, recoJets, recoScaleCalcJet, recoScaleRatioCalcJet, and zero.

Referenced by produce().

{
    // This function works with crisp clustering only
    if (!isCrisp)
        assert(!"Pile-up subtraction for fuzzy clustering "
               "is not implemented yet");

    // Clear the pileup vector
    const unsigned nJets = recoJets.size();
    pileup.resize(nJets);
    if (nJets == 0)
        return;
    const VectorLike zero;
    for (unsigned i=0; i<nJets; ++i)
        pileup[i] = zero;

    // Pileup energy flow grid
    const fftjet::Grid2d<Real>& g(*pileupEnergyFlow);
    const unsigned nEta = g.nEta();
    const unsigned nPhi = g.nPhi();
    const double cellArea = g.etaBinWidth() * g.phiBinWidth();

    // Various calculators
    fftjet::Functor1<double,RecoFFTJet>& scaleCalc(*recoScaleCalcJet);
    fftjet::Functor1<double,RecoFFTJet>& ratioCalc(*recoScaleRatioCalcJet);
    fftjet::Functor1<double,RecoFFTJet>& factorCalc(*memberFactorCalcJet);

    // Make sure we have enough memory
    memFcns2dVec.resize(nJets);
    fftjet::AbsKernel2d** memFcns2d = &memFcns2dVec[0];

    doubleBuf.resize(nJets*4U + nJets*nPhi);
    double* recoScales = &doubleBuf[0];
    double* recoScaleRatios = recoScales + nJets;
    double* memFactors = recoScaleRatios + nJets;
    double* dEta = memFactors + nJets;
    double* dPhiBuf = dEta + nJets;

    cellCountsVec.resize(nJets);
    unsigned* cellCounts = &cellCountsVec[0];

    // Go over jets and collect the necessary info
    for (unsigned ijet=0; ijet<nJets; ++ijet)
    {
        const RecoFFTJet& jet(recoJets[ijet]);
        const fftjet::Peak& peak(jet.precluster());

        // Make sure we are using 2-d membership functions.
        // Pile-up subtraction scheme for 3-d functions should be different.
        fftjet::AbsMembershipFunction* m3d = 
            dynamic_cast<fftjet::AbsMembershipFunction*>(
                peak.membershipFunction());
        if (m3d == 0)
            m3d = dynamic_cast<fftjet::AbsMembershipFunction*>(
                jetMembershipFunction.get());
        if (m3d)
        {
            assert(!"Pile-up subtraction for 3-d membership functions "
                   "is not implemented yet");
        }
        else
        {
            fftjet::AbsKernel2d* m2d =
                dynamic_cast<fftjet::AbsKernel2d*>(
                    peak.membershipFunction());
            if (m2d == 0)
                m2d = dynamic_cast<fftjet::AbsKernel2d*>(
                    jetMembershipFunction.get());
            assert(m2d);
            memFcns2d[ijet] = m2d;
        }
        recoScales[ijet] = scaleCalc(jet);
        recoScaleRatios[ijet] = ratioCalc(jet);
        memFactors[ijet] = factorCalc(jet);
        cellCounts[ijet] = 0U;

        const double jetPhi = jet.vec().Phi();
        for (unsigned iphi=0; iphi<nPhi; ++iphi)
        {
            double dphi = g.phiBinCenter(iphi) - jetPhi;
            while (dphi > M_PI)
                dphi -= (2.0*M_PI);
            while (dphi < -M_PI)
                dphi += (2.0*M_PI);
            dPhiBuf[iphi*nJets+ijet] = dphi;
        }
    }

    // Go over all grid points and integrate
    // the pile-up energy density
    VBuilder vMaker;
    for (unsigned ieta=0; ieta<nEta; ++ieta)
    {
        const double eta(g.etaBinCenter(ieta));
        const Real* databuf = g.data() + ieta*nPhi;

        // Figure out dEta for each jet
        for (unsigned ijet=0; ijet<nJets; ++ijet)
            dEta[ijet] = eta - recoJets[ijet].vec().Eta();

        for (unsigned iphi=0; iphi<nPhi; ++iphi)
        {
            double maxW(0.0);
            unsigned maxWJet(nJets);
            const double* dPhi = dPhiBuf + iphi*nJets;

            for (unsigned ijet=0; ijet<nJets; ++ijet)
            {
                if (recoScaleRatios[ijet] > 0.0)
                    memFcns2d[ijet]->setScaleRatio(recoScaleRatios[ijet]);
                const double f = memFactors[ijet]*
                    (*memFcns2d[ijet])(dEta[ijet], dPhi[ijet],
                                       recoScales[ijet]);
                if (f > maxW)
                {
                    maxW = f;
                    maxWJet = ijet;
                }
            }

            if (maxWJet < nJets)
            {
                pileup[maxWJet] += vMaker(cellArea*databuf[iphi],
                                          eta, g.phiBinCenter(iphi));
                cellCounts[maxWJet]++;
            }
        }
    }
}

void FFTJetProducer::determinePileupDensity ( const edm::Event &  iEvent, const edm::InputTag &  label, std::auto_ptr< fftjet::Grid2d< fftjetcms::Real > > &  density  )

privatevirtual

Definition at line 1039 of file FFTJetProducer.cc.

References eta(), g, edm::Event::getByLabel(), fftjetcms::AbsPileupCalculator::isPhiDependent(), phi, pileupDensityCalc, alignCSCRings::s, and edmLumisInFiles::summary.

Referenced by produce().

{
    edm::Handle<reco::FFTJetPileupSummary> summary;
    iEvent.getByLabel(label, summary);

    const reco::FFTJetPileupSummary& s(*summary);
    const AbsPileupCalculator& calc(*pileupDensityCalc);
    const bool phiDependent = calc.isPhiDependent();

    fftjet::Grid2d<Real>& g(*density);
    const unsigned nEta = g.nEta();
    const unsigned nPhi = g.nPhi();

    for (unsigned ieta=0; ieta<nEta; ++ieta)
    {
        const double eta(g.etaBinCenter(ieta));

        if (phiDependent)
        {
            for (unsigned iphi=0; iphi<nPhi; ++iphi)
            {
                const double phi(g.phiBinCenter(iphi));
                g.uncheckedSetBin(ieta, iphi, calc(eta, phi, s));
            }
        }
        else
        {
            const double pil = calc(eta, 0.0, s);
            for (unsigned iphi=0; iphi<nPhi; ++iphi)
                g.uncheckedSetBin(ieta, iphi, pil);
        }
    }
}

void FFTJetProducer::determineVectorConstituents ( )

private

Definition at line 554 of file FFTJetProducer.cc.

References fftjetcms::FFTJetInterface::candidateIndex, constituents, fftjetcms::FFTJetInterface::eventData, i, fftjetcms::FFTJetInterface::inputCollection, recoAlg, and recoJets.

Referenced by produce().

{
    const unsigned nJets = recoJets.size();
    const unsigned* clusterMask = recoAlg->getClusterMask();
    const unsigned maskLength = recoAlg->getLastNData();
    assert(maskLength == eventData.size());

    const unsigned* candIdx = maskLength ? &candidateIndex[0] : 0;
    for (unsigned i=0; i<maskLength; ++i)
    {
        // In FFTJet, the mask value of 0 corresponds to unclustered
        // energy. We will do the same here. Jet numbers are therefore
        // shifted by 1 wrt constituents vector, and constituents[1]
        // corresponds to jet number 0.
        const unsigned mask = clusterMask[i];
        assert(mask <= nJets);
        constituents[mask].push_back(inputCollection->ptrAt(candIdx[i]));
    }
}

void FFTJetProducer::endJob ( void  )

protectedvirtual

Reimplemented from edm::EDProducer.

Definition at line 1208 of file FFTJetProducer.cc.

{
}

unsigned FFTJetProducer::iterateJetReconstruction ( )

private

Definition at line 453 of file FFTJetProducer.cc.

References checkConvergence(), fftjetcms::FFTJetInterface::energyFlow, fftjetcms::FFTJetInterface::eventData, edm::hlt::Exception, gridAlg, i, iterJets, iterPreclusters, metsig::jet, fwrapper::jets, maxIterations, memberFactorCalcJet, noiseLevel, AlCaHLTBitMon_ParallelJobs::p, preclusters, recoAlg, recoJets, recoScaleCalcJet, recoScaleRatioCalcJet, removeFakePreclusters(), ntuplemaker::status, unclustered, unused, and useGriddedAlgorithm.

Referenced by produce().

{
    fftjet::Functor1<double,RecoFFTJet>& scaleCalc(*recoScaleCalcJet);
    fftjet::Functor1<double,RecoFFTJet>& ratioCalc(*recoScaleRatioCalcJet);
    fftjet::Functor1<double,RecoFFTJet>& factorCalc(*memberFactorCalcJet);

    unsigned nJets = recoJets.size();
    unsigned iterNum = 1U;
    bool converged = false;
    for (; iterNum<maxIterations && !converged; ++iterNum)
    {
        // Recreate the vector of preclusters using the jets
        const RecoFFTJet* jets = &recoJets[0];
        iterPreclusters.clear();
        iterPreclusters.reserve(nJets);
        for (unsigned i=0; i<nJets; ++i)
        {
            const RecoFFTJet& jet(jets[i]);
            fftjet::Peak p(jet.precluster());
            p.setEtaPhi(jet.vec().Eta(), jet.vec().Phi());
            p.setRecoScale(scaleCalc(jet));
            p.setRecoScaleRatio(ratioCalc(jet));
            p.setMembershipFactor(factorCalc(jet));
            iterPreclusters.push_back(p);
        }

        // Run the algorithm
        int status = 0;
        if (useGriddedAlgorithm)
            status = gridAlg->run(iterPreclusters, *energyFlow,
                                  &noiseLevel, 1U, 1U,
                                  &iterJets, &unclustered, &unused);
        else
            status = recoAlg->run(iterPreclusters, eventData, &noiseLevel, 1U,
                                  &iterJets, &unclustered, &unused);
        if (status)
            throw cms::Exception("FFTJetInterface")
                << "FFTJet algorithm failed" << std::endl;

        // As it turns out, it is possible, in very rare cases,
        // to have iterJets.size() != nJets at this point

        // Figure out if the iterations have converged
        converged = checkConvergence(recoJets, iterJets);

        // Prepare for the next cycle
        iterJets.swap(recoJets);
    nJets = recoJets.size();
    }

    // Check that we have the correct number of preclusters
    if (preclusters.size() != nJets)
    {
    assert(nJets < preclusters.size());
    removeFakePreclusters();
        assert(preclusters.size() == nJets);
    }

    // Plug in the original precluster coordinates into the result
    RecoFFTJet* jets = &recoJets[0];
    for (unsigned i=0; i<nJets; ++i)
    {
        const fftjet::Peak& oldp(preclusters[i]);
        jets[i].setPeakEtaPhi(oldp.eta(), oldp.phi());
    }

    // If we have converged on the last cycle, the result
    // would be indistinguishable from no convergence.
    // Because of this, raise the counter by one to indicate
    // the case when the convergence is not achieved.
    if (!converged)
        ++iterNum;

    return iterNum;
}

bool FFTJetProducer::loadEnergyFlow ( const edm::Event &  iEvent, const edm::InputTag &  label, std::auto_ptr< fftjet::Grid2d< fftjetcms::Real > > &  flow  )

staticprivate

Definition at line 397 of file FFTJetProducer.cc.

References edm::Event::getByLabel(), LaserDQM_cfg::input, and NULL.

Referenced by produce().

{
    edm::Handle<reco::DiscretizedEnergyFlow> input;
    iEvent.getByLabel(label, input);

    // Make sure that the grid is compatible with the stored one
    bool rebuildGrid = flow.get() == NULL;
    if (!rebuildGrid)
        rebuildGrid = 
            !(flow->nEta() == input->nEtaBins() &&
              flow->nPhi() == input->nPhiBins() &&
              flow->etaMin() == input->etaMin() &&
              flow->etaMax() == input->etaMax() &&
              flow->phiBin0Edge() == input->phiBin0Edge());
    if (rebuildGrid)
    {
        // We should not get here very often...
        flow = std::auto_ptr<fftjet::Grid2d<Real> >(
            new fftjet::Grid2d<Real>(
                input->nEtaBins(), input->etaMin(), input->etaMax(),
                input->nPhiBins(), input->phiBin0Edge(), input->title()));
    }
    flow->blockSet(input->data(), input->nEtaBins(), input->nPhiBins());
    return rebuildGrid;
}

template<class Real >

void FFTJetProducer::loadSparseTreeData ( const edm::Event &  iEvent )

private

Definition at line 195 of file FFTJetProducer.cc.

References edm::Event::getByLabel(), fftjetcms::FFTJetInterface::getEventScale(), iniScales, LaserDQM_cfg::input, fftjetcms::sparsePeakTreeFromStorable(), sparseTree, and treeLabel.

{
    typedef reco::PattRecoTree<Real,reco::PattRecoPeak<Real> > StoredTree;

    // Get the input
    edm::Handle<StoredTree> input;
    iEvent.getByLabel(treeLabel, input);

    if (!input->isSparse())
        throw cms::Exception("FFTJetBadConfig") 
            << "The stored clustering tree is not sparse" << std::endl;

    sparsePeakTreeFromStorable(*input, iniScales.get(),
                               getEventScale(), &sparseTree);
    sparseTree.sortNodes();
}

template<typename T >

void FFTJetProducer::makeProduces ( const std::string &  alias, const std::string &  tag  )

private

Definition at line 117 of file FFTJetProducer.cc.

References GlobalPosition_Frontier_DevDB_cff::tag.

Referenced by FFTJetProducer().

{
    produces<std::vector<reco::FFTAnyJet<T> > >(tag).setBranchAlias(alias);
}

FFTJetProducer& FFTJetProducer::operator= ( const FFTJetProducer &  )

private

std::auto_ptr< AbsBgFunctor > FFTJetProducer::parse_bgMembershipFunction ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 833 of file FFTJetProducer.cc.

References fftjetcms::fftjet_BgFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_BgFunctor_parser(
        ps.getParameter<edm::ParameterSet>("bgMembershipFunction"));
}

std::auto_ptr< fftjet::Functor2< double, FFTJetProducer::RecoFFTJet, FFTJetProducer::RecoFFTJet > > FFTJetProducer::parse_jetDistanceCalc ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 902 of file FFTJetProducer.cc.

References fftjetcms::fftjet_JetDistance_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_JetDistance_parser(
        ps.getParameter<edm::ParameterSet>("jetDistanceCalc"));
}

std::auto_ptr< fftjet::ScaleSpaceKernel > FFTJetProducer::parse_jetMembershipFunction ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 824 of file FFTJetProducer.cc.

References fftjetcms::fftjet_MembershipFunction_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_MembershipFunction_parser(
        ps.getParameter<edm::ParameterSet>("jetMembershipFunction"));
}

std::auto_ptr< fftjet::Functor1< double, FFTJetProducer::RecoFFTJet > > FFTJetProducer::parse_memberFactorCalcJet ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 893 of file FFTJetProducer.cc.

References fftjetcms::fftjet_JetFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_JetFunctor_parser(
        ps.getParameter<edm::ParameterSet>("memberFactorCalcJet"));
}

std::auto_ptr< fftjet::Functor1< double, fftjet::Peak > > FFTJetProducer::parse_memberFactorCalcPeak ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 869 of file FFTJetProducer.cc.

References fftjetcms::fftjet_PeakFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_PeakFunctor_parser(
        ps.getParameter<edm::ParameterSet>("memberFactorCalcPeak"));
}

std::auto_ptr< fftjet::Functor1< bool, fftjet::Peak > > FFTJetProducer::parse_peakSelector ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 815 of file FFTJetProducer.cc.

References fftjetcms::fftjet_PeakSelector_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_PeakSelector_parser(
        ps.getParameter<edm::ParameterSet>("PeakSelectorConfiguration"));
}

std::auto_ptr< fftjetcms::AbsPileupCalculator > FFTJetProducer::parse_pileupDensityCalc ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 851 of file FFTJetProducer.cc.

References fftjetcms::fftjet_PileupCalculator_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_PileupCalculator_parser(
        ps.getParameter<edm::ParameterSet>("pileupDensityCalc"));
}

std::auto_ptr< fftjet::Functor1< double, FFTJetProducer::RecoFFTJet > > FFTJetProducer::parse_recoScaleCalcJet ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 877 of file FFTJetProducer.cc.

References fftjetcms::fftjet_JetFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_JetFunctor_parser(
        ps.getParameter<edm::ParameterSet>("recoScaleCalcJet"));
}

std::auto_ptr< fftjet::Functor1< double, fftjet::Peak > > FFTJetProducer::parse_recoScaleCalcPeak ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 842 of file FFTJetProducer.cc.

References fftjetcms::fftjet_PeakFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_PeakFunctor_parser(
        ps.getParameter<edm::ParameterSet>("recoScaleCalcPeak"));
}

std::auto_ptr< fftjet::Functor1< double, FFTJetProducer::RecoFFTJet > > FFTJetProducer::parse_recoScaleRatioCalcJet ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 885 of file FFTJetProducer.cc.

References fftjetcms::fftjet_JetFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_JetFunctor_parser(
        ps.getParameter<edm::ParameterSet>("recoScaleRatioCalcJet"));
}

std::auto_ptr< fftjet::Functor1< double, fftjet::Peak > > FFTJetProducer::parse_recoScaleRatioCalcPeak ( const edm::ParameterSet &  ps )

protectedvirtual

Definition at line 860 of file FFTJetProducer.cc.

References fftjetcms::fftjet_PeakFunctor_parser(), and edm::ParameterSet::getParameter().

Referenced by beginJob().

{
    return fftjet_PeakFunctor_parser(
        ps.getParameter<edm::ParameterSet>("recoScaleRatioCalcPeak"));
}

FFTJetProducer::Resolution FFTJetProducer::parse_resolution ( const std::string &  name )

static

Definition at line 98 of file FFTJetProducer.cc.

References edm::hlt::Exception.

{
    if (!name.compare("fixed"))
        return FIXED;
    else if (!name.compare("maximallyStable"))
        return MAXIMALLY_STABLE;
    else if (!name.compare("globallyAdaptive"))
        return GLOBALLY_ADAPTIVE;
    else if (!name.compare("locallyAdaptive"))
        return LOCALLY_ADAPTIVE;
    else
        throw cms::Exception("FFTJetBadConfig")
            << "Invalid resolution specification \""
            << name << "\"" << std::endl;
}

void FFTJetProducer::prepareRecombinationScales ( )

private

Definition at line 350 of file FFTJetProducer.cc.

References i, memberFactorCalcPeak, preclusters, recoScaleCalcPeak, and recoScaleRatioCalcPeak.

Referenced by produce().

{
    const unsigned nClus = preclusters.size();
    if (nClus)
    {
        fftjet::Peak* clus = &preclusters[0];
        fftjet::Functor1<double,fftjet::Peak>& 
            scaleCalc(*recoScaleCalcPeak);
        fftjet::Functor1<double,fftjet::Peak>& 
            ratioCalc(*recoScaleRatioCalcPeak);
        fftjet::Functor1<double,fftjet::Peak>& 
            factorCalc(*memberFactorCalcPeak);

        for (unsigned i=0; i<nClus; ++i)
        {
            clus[i].setRecoScale(scaleCalc(clus[i]));
            clus[i].setRecoScaleRatio(ratioCalc(clus[i]));
            clus[i].setMembershipFactor(factorCalc(clus[i]));
        }
    }
}

void FFTJetProducer::produce ( edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

protectedvirtual

Implements edm::EDProducer.

Definition at line 707 of file FFTJetProducer.cc.

References assignConstituents, assignMembershipFunctions(), buildGridAlg(), calculatePileup, hitfit::clear(), constituents, determineGriddedConstituents(), determinePileup(), determinePileupDensity(), determineVectorConstituents(), fftjetcms::FFTJetInterface::discretizeEnergyFlow(), fftjetcms::FFTJetInterface::energyFlow, fftjetcms::FFTJetInterface::eventData, edm::hlt::Exception, gridAlg, i, iEvent, iterateJetReconstruction(), iterationsPerformed, loadEnergyFlow(), fftjetcms::FFTJetInterface::loadInputCollection(), maxIterations, noiseLevel, occupancy, peakSelector, pileup, pileupEnergyFlow, pileupLabel, preclusters, prepareRecombinationScales(), recoAlg, recoJets, removeFakePreclusters(), reuseExistingGrid, saveResults(), selectPreclusters(), sparseTree, ntuplemaker::status, fftjetcms::FFTJetInterface::storeInSinglePrecision(), treeLabel, unclustered, unused, and useGriddedAlgorithm.

{
    // Load the clustering tree made by FFTJetPatRecoProducer
    if (storeInSinglePrecision())
        loadSparseTreeData<float>(iEvent);
    else
        loadSparseTreeData<double>(iEvent);

    // Do we need to load the candidate collection?
    if (assignConstituents || !(useGriddedAlgorithm && reuseExistingGrid))
        loadInputCollection(iEvent);

    // Do we need to have discretized energy flow?
    if (useGriddedAlgorithm)
    {
        if (reuseExistingGrid)
        {
            if (loadEnergyFlow(iEvent, treeLabel, energyFlow))
                buildGridAlg();
        }
        else
            discretizeEnergyFlow();
    }

    // Calculate cluster occupancy as a function of level number
    sparseTree.occupancyInScaleSpace(*peakSelector, &occupancy);

    // Select the preclusters using the requested resolution scheme
    preclusters.clear();
    selectPreclusters(sparseTree, *peakSelector, &preclusters);

    // Prepare to run the jet recombination procedure
    prepareRecombinationScales();

    // Assign membership functions to preclusters. If this function
    // is not overriden in a derived class, default algorithm membership
    // function will be used for every cluster.
    assignMembershipFunctions(&preclusters);

    // Count the preclusters going in
    unsigned nPreclustersFound = 0U;
    const unsigned npre = preclusters.size();
    for (unsigned i=0; i<npre; ++i)
        if (preclusters[i].membershipFactor() > 0.0)
            ++nPreclustersFound;

    // Run the recombination algorithm once
    int status = 0;
    if (useGriddedAlgorithm)
        status = gridAlg->run(preclusters, *energyFlow,
                              &noiseLevel, 1U, 1U,
                              &recoJets, &unclustered, &unused);
    else
        status = recoAlg->run(preclusters, eventData, &noiseLevel, 1U,
                              &recoJets, &unclustered, &unused);
    if (status)
        throw cms::Exception("FFTJetInterface")
            << "FFTJet algorithm failed (first iteration)" << std::endl;

    // If requested, iterate the jet recombination procedure
    if (maxIterations > 1U && !recoJets.empty())
    {
        // It is possible to have a smaller number of jets than we had
        // preclusters. Fake preclusters are possible, but for a good
        // choice of pattern recognition kernel their presence should
        // be infrequent. However, any fake preclusters will throw the
        // iterative reconstruction off balance. Deal with the problem now.
        const unsigned nJets = recoJets.size();
        if (preclusters.size() != nJets)
        {
            assert(nJets < preclusters.size());
            removeFakePreclusters();
        }
        iterationsPerformed = iterateJetReconstruction();
    }
    else
        iterationsPerformed = 1U;

    // Determine jet constituents. FFTJet returns a map
    // of constituents which is inverse to what we need here.
    const unsigned nJets = recoJets.size();
    if (constituents.size() <= nJets)
        constituents.resize(nJets + 1U);
    if (assignConstituents)
    {
        for (unsigned i=0; i<=nJets; ++i)
            constituents[i].clear();
        if (useGriddedAlgorithm)
            determineGriddedConstituents();
        else
            determineVectorConstituents();
    }

    // Figure out the pile-up
    if (calculatePileup)
    {
        determinePileupDensity(iEvent, pileupLabel, pileupEnergyFlow);
        determinePileup();
        assert(pileup.size() == recoJets.size());
    }

    // Write out the results
    saveResults(iEvent, iSetup, nPreclustersFound);
}

void FFTJetProducer::removeFakePreclusters ( )

private

Definition at line 1001 of file FFTJetProducer.cc.

References i, iterPreclusters, fftjetcms::matchOneToOne(), preclusters, and recoJets.

Referenced by iterateJetReconstruction(), and produce().

{
    // There are two possible reasons for fake preclusters:
    // 1. Membership factor was set to 0
    // 2. Genuine problem with pattern recognition
    //
    // Anyway, we need to match jets to preclusters and keep
    // only those preclusters that have been matched
    //
    std::vector<int> matchTable;
    const unsigned nmatched = matchOneToOne(
        recoJets, preclusters, JetToPeakDistance(), &matchTable);

    // Ensure that all jets have been matched.
    // If not, we must have a bug somewhere.
    assert(nmatched == recoJets.size());

    // Collect all matched preclusters
    iterPreclusters.clear();
    iterPreclusters.reserve(nmatched);
    for (unsigned i=0; i<nmatched; ++i)
        iterPreclusters.push_back(preclusters[matchTable[i]]);
    iterPreclusters.swap(preclusters);
}

void FFTJetProducer::saveResults ( edm::Event &  iEvent, const edm::EventSetup &  iSetup, unsigned  nPreclustersFound  )

private

Definition at line 671 of file FFTJetProducer.cc.

References constituents, i, iterationsPerformed, jet_type_switch, maxIterations, maxLevel, minLevel, occupancy, fftjetcms::FFTJetInterface::outputLabel, p4, edm::Event::put(), resumConstituents, sparseTree, edmLumisInFiles::summary, thresholds, unclustered, unused, usedLevel, and writeJets().

Referenced by produce().

{
    // Write recombined jets
    jet_type_switch(writeJets, ev, iSetup);

    // Check if we should resum unclustered energy constituents
    VectorLike unclusE(unclustered);
    if (resumConstituents)
    {
        VectorLike sum(0.0, 0.0, 0.0, 0.0);
        const unsigned nCon = constituents[0].size();
        const reco::CandidatePtr* cn = nCon ? &constituents[0][0] : 0;
        for (unsigned i=0; i<nCon; ++i)
            sum += cn[i]->p4();
        unclusE = sum;
    }

    // Write the jet reconstruction summary
    const double minScale = minLevel ? sparseTree.getScale(minLevel) : 0.0;
    const double maxScale = maxLevel ? sparseTree.getScale(maxLevel) : 0.0;
    const double scaleUsed = usedLevel ? sparseTree.getScale(usedLevel) : 0.0;

    std::auto_ptr<reco::FFTJetProducerSummary> summary(
        new reco::FFTJetProducerSummary(
            thresholds, occupancy, unclusE,
            constituents[0], unused,
            minScale, maxScale, scaleUsed,
            nPreclustersFound, iterationsPerformed,
            iterationsPerformed == 1U ||
            iterationsPerformed <= maxIterations));
    ev.put(summary, outputLabel);
}

void FFTJetProducer::selectPreclusters ( const SparseTree &  tree, const fftjet::Functor1< bool, fftjet::Peak > &  peakSelector, std::vector< fftjet::Peak > *  preclusters  )

protectedvirtual

Definition at line 213 of file FFTJetProducer.cc.

References i, nodes, resolution, selectTreeNodes(), and sparseTree.

Referenced by produce().

{
    nodes.clear();
    selectTreeNodes(tree, peakSelector, &nodes);

    // Fill out the vector of preclusters using the tree node ids
    const unsigned nNodes = nodes.size();
    const SparseTree::NodeId* pnodes = nNodes ? &nodes[0] : 0;
    preclusters->reserve(nNodes);
    for (unsigned i=0; i<nNodes; ++i)
        preclusters->push_back(
            sparseTree.uncheckedNode(pnodes[i]).getCluster());

    // Remember the node id in the precluster and set
    // the status word to indicate the resolution scheme used
    fftjet::Peak* clusters = nNodes ? &(*preclusters)[0] : 0;
    for (unsigned i=0; i<nNodes; ++i)
    {
        clusters[i].setCode(pnodes[i]);
        clusters[i].setStatus(resolution);
    }
}

void FFTJetProducer::selectTreeNodes ( const SparseTree &  tree, const fftjet::Functor1< bool, fftjet::Peak > &  peakSelect, std::vector< SparseTree::NodeId > *  nodes  )

protected

Definition at line 240 of file FFTJetProducer.cc.

References delta, FIXED, fixedScale, GLOBALLY_ADAPTIVE, testEve_cfg::level, LOCALLY_ADAPTIVE, MAXIMALLY_STABLE, maxLevel, maxStableScale, minLevel, minStableScale, n, nClustersRequested, occupancy, resolution, stabilityAlpha, TopDecayID::stable, thresholds, and usedLevel.

Referenced by selectPreclusters().

{
    minLevel = maxLevel = usedLevel = 0;

    // Get the tree nodes which pass the cuts
    // (according to the selected resolution strategy)
    switch (resolution)
    {
    case FIXED:
    {
        usedLevel = tree.getLevel(fixedScale);
        tree.getPassingNodes(usedLevel, peakSelect, mynodes);
    }
    break;

    case MAXIMALLY_STABLE:
    {
        const unsigned minStartingLevel = maxStableScale > 0.0 ? 
            tree.getLevel(maxStableScale) : 0;
        const unsigned maxStartingLevel = minStableScale > 0.0 ?
            tree.getLevel(minStableScale) : UINT_MAX;

        if (tree.stableClusterCount(
                peakSelect, &minLevel, &maxLevel, stabilityAlpha,
                minStartingLevel, maxStartingLevel))
        {
            usedLevel = (minLevel + maxLevel)/2;
            tree.getPassingNodes(usedLevel, peakSelect, mynodes);
        }
    }
    break;

    case GLOBALLY_ADAPTIVE:
    {
        const bool stable = tree.clusterCountLevels(
            nClustersRequested, peakSelect, &minLevel, &maxLevel);
        if (minLevel || maxLevel)
        {
            usedLevel = (minLevel + maxLevel)/2;
            if (!stable)
            {
                const int maxlev = tree.maxStoredLevel();
                bool levelFound = false;
                for (int delta=0; delta<=maxlev && !levelFound; ++delta)
                    for (int ifac=1; ifac>-2 && !levelFound; ifac-=2)
                    {
                        const int level = usedLevel + ifac*delta;
                        if (level > 0 && level <= maxlev)
                            if (occupancy[level] == nClustersRequested)
                            {
                                usedLevel = level;
                                levelFound = true;
                            }
                    }
                assert(levelFound);
            }
        }
        else
        {
            // Can't find that exact number of preclusters.
            // Try to get the next best thing.
            usedLevel = 1;
            const unsigned occ1 = occupancy[1];
            if (nClustersRequested >= occ1)
            {
                const unsigned maxlev = tree.maxStoredLevel();
                if (nClustersRequested > occupancy[maxlev])
                    usedLevel = maxlev;
                else
                {
                    // It would be nice to use "lower_bound" here,
                    // but the occupancy is not necessarily monotonous.
                    unsigned bestDelta = nClustersRequested > occ1 ?
                        nClustersRequested - occ1 : occ1 - nClustersRequested;
                    for (unsigned level=2; level<=maxlev; ++level)
                    {
                        const unsigned n = occupancy[level];
                        const unsigned d = nClustersRequested > n ? 
                            nClustersRequested - n : n - nClustersRequested;
                        if (d < bestDelta)
                        {
                            bestDelta = d;
                            usedLevel = level;
                        }
                    }
                }
            }
        }
        tree.getPassingNodes(usedLevel, peakSelect, mynodes);
    }
    break;

    case LOCALLY_ADAPTIVE:
    {
        usedLevel = tree.getLevel(fixedScale);
        tree.getMagS2OptimalNodes(peakSelect, nClustersRequested,
                                  usedLevel, mynodes, &thresholds);
    }
    break;

    default:
        assert(!"ERROR in FFTJetProducer::selectTreeNodes : "
               "should never get here! This is a bug. Please report.");
    }
}

void FFTJetProducer::setJetStatusBit ( RecoFFTJet *  jet, int  mask, bool  value  )

staticprivate

Definition at line 1027 of file FFTJetProducer.cc.

References ntuplemaker::status.

Referenced by writeJets().

{
    int status = jet->status();
    if (value)
        status |= mask;
    else
        status &= ~mask;
    jet->setStatus(status);
}

template<typename T >

void FFTJetProducer::writeJets ( edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

private

Definition at line 578 of file FFTJetProducer.cc.

References calculatePileup, cellCountsVec, constituents, CONSTITUENTS_RESUMMED, fftjetcms::FFTJetInterface::energyFlow, i, metsig::jet, fwrapper::jets, fftjetcms::FFTJetInterface::outputLabel, p4, pileup, PILEUP_CALCULATED, PILEUP_SUBTRACTED_4VEC, PILEUP_SUBTRACTED_PT, pileupEnergyFlow, edm::Event::put(), dt_dqm_sourceclient_common_cff::reco, recoJets, recombinationDataCutoff, resumConstituents, reco::FFTJet< Real >::setFourVec(), setJetStatusBit(), reco::FFTJet< Real >::setNCells(), reco::FFTJet< Real >::setPileup(), subtractPileup, subtractPileupAs4Vec, useGriddedAlgorithm, fftjetcms::FFTJetInterface::vertexUsed(), and reco::writeSpecific().

Referenced by saveResults().

{
    using namespace reco;

    typedef FFTAnyJet<T> OutputJet;
    typedef std::vector<OutputJet> OutputCollection;

    // Area of a single eta-phi cell for jet area calculations.
    // Set it to 0 in case the module configuration does not allow
    // us to calculate jet areas reliably.
    double cellArea = useGriddedAlgorithm && 
                      recombinationDataCutoff < 0.0 ?
        energyFlow->etaBinWidth() * energyFlow->phiBinWidth() : 0.0;

    if (calculatePileup)
        cellArea = pileupEnergyFlow->etaBinWidth() *
                   pileupEnergyFlow->phiBinWidth();

    // allocate output jet collection
    std::auto_ptr<OutputCollection> jets(new OutputCollection());
    const unsigned nJets = recoJets.size();
    jets->reserve(nJets);

    for (unsigned ijet=0; ijet<nJets; ++ijet)
    {
        RecoFFTJet& myjet(recoJets[ijet]);

        // Check if we should resum jet constituents
        VectorLike jet4vec(myjet.vec());
        if (resumConstituents)
        {
            VectorLike sum(0.0, 0.0, 0.0, 0.0);
            const unsigned nCon = constituents[ijet+1].size();
            const reco::CandidatePtr* cn = nCon ? &constituents[ijet+1][0] : 0;
            for (unsigned i=0; i<nCon; ++i)
                sum += cn[i]->p4();
            jet4vec = sum;
            setJetStatusBit(&myjet, CONSTITUENTS_RESUMMED, true);
        }

        // Subtract the pile-up
        if (calculatePileup && subtractPileup)
        {
            if (subtractPileupAs4Vec)
            {
                jet4vec -= pileup[ijet];
                setJetStatusBit(&myjet, PILEUP_SUBTRACTED_4VEC, true);
            }
            else
            {
                const double pt = jet4vec.Pt();
                if (pt > 0.0)
                {
                    const double pileupPt = pileup[ijet].Pt();
                    jet4vec *= ((pt - pileupPt)/pt);
                }
                setJetStatusBit(&myjet, PILEUP_SUBTRACTED_PT, true);
            }
        }

        // Write the specifics to the jet (simultaneously sets 4-vector,
        // vertex, constituents). These are overridden functions that will
        // call the appropriate specific code.
        T jet;
        writeSpecific(jet, jet4vec, vertexUsed(),
                      constituents[ijet+1], iSetup);

        // calcuate the jet area
        double ncells = myjet.ncells();
        if (calculatePileup)
        {
            ncells = cellCountsVec[ijet];
            setJetStatusBit(&myjet, PILEUP_CALCULATED, true);
        }
        jet.setJetArea(cellArea*ncells);

        // add jet to the list
        FFTJet<float> fj(jetToStorable<float>(myjet));
        fj.setFourVec(jet4vec);
        if (calculatePileup)
        {
            fj.setPileup(pileup[ijet]);
            fj.setNCells(ncells);
        }
        jets->push_back(OutputJet(jet, fj));
    }

    // put the collection into the event
    iEvent.put(jets, outputLabel);
}

Member Data Documentation

const bool FFTJetProducer::assignConstituents

private

Definition at line 246 of file FFTJetProducer.h.

Referenced by beginJob(), buildGridAlg(), FFTJetProducer(), and produce().

std::auto_ptr<fftjetcms::AbsBgFunctor> FFTJetProducer::bgMembershipFunction

private

Definition at line 307 of file FFTJetProducer.h.

Referenced by beginJob(), and buildGridAlg().

const bool FFTJetProducer::calculatePileup

private

Definition at line 255 of file FFTJetProducer.h.

Referenced by beginJob(), produce(), and writeJets().

std::vector<unsigned> FFTJetProducer::cellCountsVec

private

Definition at line 374 of file FFTJetProducer.h.

Referenced by determinePileup(), and writeJets().

std::vector<std::vector<reco::CandidatePtr> > FFTJetProducer::constituents

private

Definition at line 357 of file FFTJetProducer.h.

Referenced by determineGriddedConstituents(), determineVectorConstituents(), produce(), saveResults(), and writeJets().

const double FFTJetProducer::convergenceDistance

private

Definition at line 243 of file FFTJetProducer.h.

Referenced by checkConvergence().

std::vector<double> FFTJetProducer::doubleBuf

private

Definition at line 373 of file FFTJetProducer.h.

Referenced by determinePileup().

const double FFTJetProducer::fixedScale

private

Definition at line 264 of file FFTJetProducer.h.

Referenced by selectTreeNodes().

std::auto_ptr<GridAlg> FFTJetProducer::gridAlg

private

Definition at line 305 of file FFTJetProducer.h.

Referenced by buildGridAlg(), determineGriddedConstituents(), iterateJetReconstruction(), and produce().

const double FFTJetProducer::gridScanMaxEta

private

Definition at line 281 of file FFTJetProducer.h.

Referenced by buildGridAlg().

std::auto_ptr<std::vector<double> > FFTJetProducer::iniScales

private

Definition at line 295 of file FFTJetProducer.h.

Referenced by FFTJetProducer(), and loadSparseTreeData().

const bool FFTJetProducer::isCrisp

private

Definition at line 285 of file FFTJetProducer.h.

Referenced by beginJob(), buildGridAlg(), and determinePileup().

unsigned FFTJetProducer::iterationsPerformed

private

Definition at line 354 of file FFTJetProducer.h.

Referenced by produce(), and saveResults().

std::vector<RecoFFTJet> FFTJetProducer::iterJets

private

Definition at line 353 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction().

std::vector<fftjet::Peak> FFTJetProducer::iterPreclusters

private

Definition at line 352 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction(), and removeFakePreclusters().

std::auto_ptr<fftjet::Functor2<double,RecoFFTJet,RecoFFTJet> > FFTJetProducer::jetDistanceCalc

private

Definition at line 327 of file FFTJetProducer.h.

Referenced by beginJob(), and checkConvergence().

std::auto_ptr<fftjet::ScaleSpaceKernel> FFTJetProducer::jetMembershipFunction

private

Definition at line 306 of file FFTJetProducer.h.

Referenced by beginJob(), buildGridAlg(), and determinePileup().

const unsigned FFTJetProducer::maxIterations

private

Definition at line 239 of file FFTJetProducer.h.

Referenced by beginJob(), iterateJetReconstruction(), produce(), and saveResults().

unsigned FFTJetProducer::maxLevel

private

Definition at line 345 of file FFTJetProducer.h.

Referenced by saveResults(), and selectTreeNodes().

const double FFTJetProducer::maxStableScale

private

Definition at line 268 of file FFTJetProducer.h.

Referenced by selectTreeNodes().

std::auto_ptr<fftjet::Functor1<double,RecoFFTJet> > FFTJetProducer::memberFactorCalcJet

private

Definition at line 322 of file FFTJetProducer.h.

Referenced by beginJob(), determinePileup(), and iterateJetReconstruction().

std::auto_ptr<fftjet::Functor1<double,fftjet::Peak> > FFTJetProducer::memberFactorCalcPeak

private

Definition at line 317 of file FFTJetProducer.h.

Referenced by beginJob(), and prepareRecombinationScales().

std::vector<fftjet::AbsKernel2d*> FFTJetProducer::memFcns2dVec

private

Definition at line 372 of file FFTJetProducer.h.

Referenced by determinePileup().

unsigned FFTJetProducer::minLevel

private

Definition at line 345 of file FFTJetProducer.h.

Referenced by saveResults(), and selectTreeNodes().

const double FFTJetProducer::minStableScale

private

Definition at line 267 of file FFTJetProducer.h.

Referenced by selectTreeNodes().

const edm::ParameterSet FFTJetProducer::myConfiguration

private

Definition at line 225 of file FFTJetProducer.h.

Referenced by beginJob().

const unsigned FFTJetProducer::nClustersRequested

private

Definition at line 278 of file FFTJetProducer.h.

Referenced by selectTreeNodes().

const unsigned FFTJetProducer::nJetsRequiredToConverge

private

Definition at line 242 of file FFTJetProducer.h.

std::vector<SparseTree::NodeId> FFTJetProducer::nodes

private

Definition at line 330 of file FFTJetProducer.h.

Referenced by selectPreclusters().

const double FFTJetProducer::noiseLevel

private

Definition at line 275 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction(), and produce().

std::vector<unsigned> FFTJetProducer::occupancy

private

Definition at line 339 of file FFTJetProducer.h.

Referenced by produce(), saveResults(), and selectTreeNodes().

std::auto_ptr<fftjet::Functor1<bool,fftjet::Peak> > FFTJetProducer::peakSelector

private

Definition at line 301 of file FFTJetProducer.h.

Referenced by beginJob(), and produce().

std::vector<fftjetcms::VectorLike> FFTJetProducer::pileup

private

Definition at line 361 of file FFTJetProducer.h.

Referenced by determinePileup(), produce(), and writeJets().

std::auto_ptr<fftjetcms::AbsPileupCalculator> FFTJetProducer::pileupDensityCalc

private

Definition at line 369 of file FFTJetProducer.h.

Referenced by beginJob(), and determinePileupDensity().

std::auto_ptr<fftjet::Grid2d<fftjetcms::Real> > FFTJetProducer::pileupEnergyFlow

private

Definition at line 366 of file FFTJetProducer.h.

Referenced by beginJob(), determinePileup(), produce(), and writeJets().

const edm::InputTag FFTJetProducer::pileupLabel

private

Definition at line 261 of file FFTJetProducer.h.

Referenced by produce().

std::vector<fftjet::Peak> FFTJetProducer::preclusters

private

Definition at line 333 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction(), prepareRecombinationScales(), produce(), and removeFakePreclusters().

std::auto_ptr<RecoAlg> FFTJetProducer::recoAlg

private

Definition at line 304 of file FFTJetProducer.h.

Referenced by beginJob(), determineVectorConstituents(), iterateJetReconstruction(), and produce().

std::vector<RecoFFTJet> FFTJetProducer::recoJets

private

Definition at line 336 of file FFTJetProducer.h.

Referenced by determineGriddedConstituents(), determinePileup(), determineVectorConstituents(), iterateJetReconstruction(), produce(), removeFakePreclusters(), and writeJets().

const std::string FFTJetProducer::recombinationAlgorithm

private

Definition at line 284 of file FFTJetProducer.h.

Referenced by beginJob(), and buildGridAlg().

const double FFTJetProducer::recombinationDataCutoff

private

Definition at line 287 of file FFTJetProducer.h.

Referenced by buildGridAlg(), and writeJets().

std::auto_ptr<fftjet::Functor1<double,RecoFFTJet> > FFTJetProducer::recoScaleCalcJet

private

Definition at line 320 of file FFTJetProducer.h.

Referenced by beginJob(), determinePileup(), and iterateJetReconstruction().

std::auto_ptr<fftjet::Functor1<double,fftjet::Peak> > FFTJetProducer::recoScaleCalcPeak

private

Definition at line 310 of file FFTJetProducer.h.

Referenced by beginJob(), and prepareRecombinationScales().

std::auto_ptr<fftjet::Functor1<double,RecoFFTJet> > FFTJetProducer::recoScaleRatioCalcJet

private

Definition at line 321 of file FFTJetProducer.h.

Referenced by beginJob(), determinePileup(), and iterateJetReconstruction().

std::auto_ptr<fftjet::Functor1<double,fftjet::Peak> > FFTJetProducer::recoScaleRatioCalcPeak

private

Definition at line 314 of file FFTJetProducer.h.

Referenced by beginJob(), and prepareRecombinationScales().

Resolution FFTJetProducer::resolution

private

Definition at line 292 of file FFTJetProducer.h.

Referenced by selectPreclusters(), and selectTreeNodes().

const bool FFTJetProducer::resumConstituents

private

Definition at line 251 of file FFTJetProducer.h.

Referenced by FFTJetProducer(), saveResults(), and writeJets().

const bool FFTJetProducer::reuseExistingGrid

private

Definition at line 236 of file FFTJetProducer.h.

Referenced by beginJob(), and produce().

SparseTree FFTJetProducer::sparseTree

private

Definition at line 298 of file FFTJetProducer.h.

Referenced by loadSparseTreeData(), produce(), saveResults(), and selectPreclusters().

const double FFTJetProducer::stabilityAlpha

private

Definition at line 271 of file FFTJetProducer.h.

Referenced by selectTreeNodes().

const bool FFTJetProducer::subtractPileup

private

Definition at line 256 of file FFTJetProducer.h.

Referenced by writeJets().

const bool FFTJetProducer::subtractPileupAs4Vec

private

Definition at line 257 of file FFTJetProducer.h.

Referenced by writeJets().

std::vector<double> FFTJetProducer::thresholds

private

Definition at line 342 of file FFTJetProducer.h.

Referenced by saveResults(), and selectTreeNodes().

const edm::InputTag FFTJetProducer::treeLabel

private

Definition at line 228 of file FFTJetProducer.h.

Referenced by loadSparseTreeData(), and produce().

fftjetcms::VectorLike FFTJetProducer::unclustered

private

Definition at line 348 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction(), produce(), and saveResults().

const double FFTJetProducer::unlikelyBgWeight

private

Definition at line 286 of file FFTJetProducer.h.

Referenced by beginJob(), and buildGridAlg().

double FFTJetProducer::unused

private

Definition at line 349 of file FFTJetProducer.h.

Referenced by iterateJetReconstruction(), produce(), and saveResults().

unsigned FFTJetProducer::usedLevel

private

Definition at line 345 of file FFTJetProducer.h.

Referenced by saveResults(), and selectTreeNodes().

const bool FFTJetProducer::useGriddedAlgorithm

private

Definition at line 232 of file FFTJetProducer.h.

Referenced by beginJob(), iterateJetReconstruction(), produce(), and writeJets().