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decrease event size by storing PFCandidates with half precision float… #29513

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merged 3 commits into from May 5, 2020
Merged

decrease event size by storing PFCandidates with half precision float… #29513

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435cb20
decrease event size by storing PFCandidates with half precision float…
jsalfeld Apr 19, 2020
be726b0
clang format
jsalfeld Apr 19, 2020
70f4902
change to adjustable precision via MiniFloatConverter::reduceMantissa…
jsalfeld May 1, 2020
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13 changes: 12 additions & 1 deletion HLTrigger/JetMET/plugins/HLTScoutingPFProducer.cc
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Expand Up @@ -39,6 +39,8 @@ Description: Producer for ScoutingPFJets from reco::PFJet objects, ScoutingVerte

#include "DataFormats/Math/interface/deltaR.h"

#include "DataFormats/Math/interface/libminifloat.h"

class HLTScoutingPFProducer : public edm::global::EDProducer<> {
public:
explicit HLTScoutingPFProducer(const edm::ParameterSet &);
Expand All @@ -60,6 +62,7 @@ class HLTScoutingPFProducer : public edm::global::EDProducer<> {
const double pfJetEtaCut;
const double pfCandidatePtCut;
const double pfCandidateEtaCut;
const int mantissaPrecision;

const bool doJetTags;
const bool doCandidates;
Expand All @@ -81,6 +84,7 @@ HLTScoutingPFProducer::HLTScoutingPFProducer(const edm::ParameterSet &iConfig)
pfJetEtaCut(iConfig.getParameter<double>("pfJetEtaCut")),
pfCandidatePtCut(iConfig.getParameter<double>("pfCandidatePtCut")),
pfCandidateEtaCut(iConfig.getParameter<double>("pfCandidateEtaCut")),
mantissaPrecision(iConfig.getParameter<int>("mantissaPrecision")),
doJetTags(iConfig.getParameter<bool>("doJetTags")),
doCandidates(iConfig.getParameter<bool>("doCandidates")),
doMet(iConfig.getParameter<bool>("doMet")) {
Expand Down Expand Up @@ -151,7 +155,13 @@ void HLTScoutingPFProducer::produce(edm::StreamID sid, edm::Event &iEvent, edm::
break;
++index_counter;
}
outPFCandidates->emplace_back(cand.pt(), cand.eta(), cand.phi(), cand.mass(), cand.pdgId(), vertex_index);

outPFCandidates->emplace_back(MiniFloatConverter::reduceMantissaToNbitsRounding(cand.pt(), mantissaPrecision),
MiniFloatConverter::reduceMantissaToNbitsRounding(cand.eta(), mantissaPrecision),
MiniFloatConverter::reduceMantissaToNbitsRounding(cand.phi(), mantissaPrecision),
MiniFloatConverter::reduceMantissaToNbitsRounding(cand.mass(), mantissaPrecision),
cand.pdgId(),
vertex_index);
}
}
}
Expand Down Expand Up @@ -253,6 +263,7 @@ void HLTScoutingPFProducer::fillDescriptions(edm::ConfigurationDescriptions &des
desc.add<double>("pfJetEtaCut", 3.0);
desc.add<double>("pfCandidatePtCut", 0.6);
desc.add<double>("pfCandidateEtaCut", 5.0);
desc.add<int>("mantissaPrecision", 23);
desc.add<bool>("doJetTags", true);
desc.add<bool>("doCandidates", true);
desc.add<bool>("doMet", true);
Expand Down