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Clean up QuickTrackAssociatorByHits configuration #22983

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merged 4 commits into from Apr 24, 2018
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Expand Up @@ -80,7 +80,6 @@ class QuickTrackAssociatorByHitsProducer : public edm::global::EDProducer<> {
// constructors and destructor
//
QuickTrackAssociatorByHitsProducer::QuickTrackAssociatorByHitsProducer(const edm::ParameterSet& iConfig):
trackerHitAssociatorConfig_(makeHitAssociatorParameters(iConfig), consumesCollector()),
qualitySimToReco_( iConfig.getParameter<double>( "Quality_SimToReco" ) ),
puritySimToReco_( iConfig.getParameter<double>( "Purity_SimToReco" ) ),
pixelHitWeight_( iConfig.getParameter<double>( "PixelHitWeight" ) ),
Expand Down Expand Up @@ -123,6 +122,9 @@ QuickTrackAssociatorByHitsProducer::QuickTrackAssociatorByHitsProducer(const edm
if(useClusterTPAssociation_) {
cluster2TPToken_ = consumes<ClusterTPAssociation>(iConfig.getParameter < edm::InputTag > ("cluster2TPSrc"));
}
else {
trackerHitAssociatorConfig_ = TrackerHitAssociator::Config(makeHitAssociatorParameters(iConfig), consumesCollector());
}

}

Expand Down
Expand Up @@ -8,30 +8,26 @@
Purity_SimToReco = cms.double(0.75),
ThreeHitTracksAreSpecial = cms.bool(True),
PixelHitWeight = cms.double(1.0),
associatePixel = cms.bool(True),
associateStrip = cms.bool(True),
pixelSimLinkSrc = cms.InputTag("simSiPixelDigis"),
stripSimLinkSrc = cms.InputTag("simSiStripDigis"),
useClusterTPAssociation = cms.bool(True),
cluster2TPSrc = cms.InputTag("tpClusterProducer")
)

quickTrackAssociatorByHitsTrackerHitAssociator = quickTrackAssociatorByHits.clone(
useClusterTPAssociation = False,
associateStrip = cms.bool(True),
associatePixel = cms.bool(True),
pixelSimLinkSrc = cms.InputTag("simSiPixelDigis"),
stripSimLinkSrc = cms.InputTag("simSiStripDigis"),
)

from Configuration.Eras.Modifier_fastSim_cff import fastSim
fastSim.toModify(quickTrackAssociatorByHits,
fastSim.toReplaceWith(quickTrackAssociatorByHits, quickTrackAssociatorByHitsTrackerHitAssociator.clone(
associateStrip = False,
associatePixel = False,
useClusterTPAssociation = False
)

from Configuration.Eras.Modifier_phase2_tracker_cff import phase2_tracker
phase2_tracker.toModify(
quickTrackAssociatorByHits,
pixelSimLinkSrc = cms.InputTag("simSiPixelDigis","Pixel"),
stripSimLinkSrc = cms.InputTag("simSiPixelDigis","Tracker")
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The starting point for these developments was this customization, which is

  • incorrect: for phase 2, instead of stripSimLinkSrc one should set
usePhase2Tracker = cms.bool(True),
phase2TrackerSimLinkSrc = cms.InputTag("simSiPixelDigis","Tracker")
  • useless: These parameters are for TrackerHitAssociator, while by default QuickTrackAssociatorByHits uses ClusterTPAssociation

So this PR makes an attempt to remove the customization of useless and possibly confusing parameters.

)
))

from Configuration.ProcessModifiers.premix_stage2_cff import premix_stage2
premix_stage2.toModify(quickTrackAssociatorByHits,
(fastSim & premix_stage2).toModify(quickTrackAssociatorByHits,
pixelSimLinkSrc = "mixData:PixelDigiSimLink",
stripSimLinkSrc = "mixData:StripDigiSimLink",
)
Expand Up @@ -56,6 +56,7 @@ class TrackerHitAssociator {

public:
struct Config {
Config() {}
Config(const edm::ParameterSet& conf, edm::ConsumesCollector && iC);
Config(edm::ConsumesCollector && iC);
bool doPixel_, doStrip_, useOTph2_, doTrackAssoc_, assocHitbySimTrack_;
Expand Down
5 changes: 2 additions & 3 deletions Validation/RecoHI/python/TrackValidationHeavyIons_cff.py
Expand Up @@ -2,9 +2,8 @@

# track associator settings
import SimTracker.TrackAssociatorProducers.quickTrackAssociatorByHits_cfi
trackAssociatorByHitsRecoDenom = SimTracker.TrackAssociatorProducers.quickTrackAssociatorByHits_cfi.quickTrackAssociatorByHits.clone(
useClusterTPAssociation = False # to do the track<->TP association with TrackerHitAssociator
)
# to do the track<->TP association with TrackerHitAssociator
trackAssociatorByHitsRecoDenom = SimTracker.TrackAssociatorProducers.quickTrackAssociatorByHits_cfi.quickTrackAssociatorByHitsTrackerHitAssociator.clone()
from SimGeneral.TrackingAnalysis.trackingParticleNumberOfLayersProducer_cff import *

# reco track quality cuts
Expand Down