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Merged
alcaliva merged 8 commits into from
Jul 22, 2025
Merged

[DPG] adding filtering of collisions to save space and better balancing fil… #12141

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4befc4c
adding filtering of collisions to save space and better balancing fil…
Jul 18, 2025
35bef7b
removal of unused parameter
Jul 18, 2025
c9bbc80
Dummy commit
Jul 19, 2025
ce48c8e
making MegaLinter and Linter happier
Jul 22, 2025
df8a984
another linter fix
Jul 22, 2025
6d2ccbc
fix linter and compilation errors due to different data-type comparison
Jul 22, 2025
b770a01
clang format...
Jul 22, 2025
cf2d5ed
linter and megalinter fixes
Jul 22, 2025
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31 changes: 22 additions & 9 deletions DPG/Tasks/ITS/filterTracks.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -146,17 +146,22 @@
Produces<aod::GenParticles> selectedGenParticles;
Produces<aod::FilterColl> filterCollTable;

SliceCache cache;
// Configurable<int> dummy{"dummy", 0, "dummy"};
Configurable<float> minTrackPt{"minTrackPt", 0.25, "min track pt"};
Configurable<float> trackDcaXyMax{"trackDcaXyMax", 0.5, "max track pt"};
Configurable<int> trackPtSampling{"trackPtSampling", 0, "track sampling mode"};
Configurable<float> trackPtWeightLowPt{"trackPtWeightLowPt", 0.01f, "trackPtWeightLowPt"};
Configurable<float> trackPtWeightMidPt{"trackPtWeightMidPt", 0.10f, "trackPtWeightMidPt"};
Configurable<float> collFilterFraction{"collFilterFraction", 0.05f, "collFilterFraction"};

Filter trackFilter = requireGlobalTrackWoDCAInFilter() && aod::track::pt > minTrackPt&& nabs(aod::track::dcaXY) < trackDcaXyMax;
Filter collFilter = nabs(aod::collision::posZ * 10000.f - nround(aod::collision::posZ * 10000.f)) < collFilterFraction.node() * 2.f;
using CollisionsWithEvSel = soa::Join<aod::Collisions, aod::EvSels>;
using TracksWithSelAndDca = soa::Join<aod::Tracks, aod::TracksCov, aod::TracksDCA, aod::TracksDCACov, aod::TracksExtra, aod::TrackSelection, aod::pidTPCFullPi, aod::pidTOFFullPi, aod::pidTPCFullKa, aod::pidTOFFullKa, aod::pidTPCFullPr, aod::pidTOFFullPr>;
using TracksWithSelAndDcaMc = soa::Join<TracksWithSelAndDca, aod::McTrackLabels>;
using FilterCollisionsWithEvSel = soa::Filtered<CollisionsWithEvSel>;

Partition<soa::Filtered<TracksWithSelAndDca>> lowPtTracks = aod::track::pt < 2.f && (nabs(aod::track::pt * 10000.f - nround(aod::track::pt * 10000.f)) < trackPtWeightLowPt.node() * 2.f);
Partition<soa::Filtered<TracksWithSelAndDca>> midPtTracks = aod::track::pt > 2.f && aod::track::pt < 5.f && (nabs(aod::track::pt * 10000.f - nround(aod::track::pt * 10000.f)) < trackPtWeightMidPt.node() * 2.f);
Partition<soa::Filtered<TracksWithSelAndDca>> highPtTracks = aod::track::pt > 5.f;
Expand Down Expand Up @@ -203,7 +208,7 @@
// just for internal check
// double mass=particleMother.e()*particleMother.e()-particleMother.pt()*particleMother.pt()-particleMother.pz()*particleMother.pz();
// filteredTracksMC(mcparticle.pdgCode(),mcparticle.isPhysicalPrimary(),particleMother.pdgCode(),0,motherIndex,0,particleMother.pt(),particleMother.y(),std::sqrt(mass),0);
if (pdgParticleMother == 310) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
auto daughtersSlice = mcparticle.template daughters_as<aod::McParticles>();
int ndaught = daughtersSlice.size(); // might not be accurate in case K0s interact with material before decaying
if (ndaught != 2)
Expand All @@ -215,13 +220,13 @@

int ndaught = 0;
std::vector<int> indxDaughers;
if (pdgParticleMother == 421) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
if (RecoDecay::isMatchedMCGen<true, false>(mcParticles, particleMother, pdgParticleMother, pdgDecayDzero, true, nullptr, 3, &indxDaughers)) {
ndaught = 2;
// std::cout<<"######## FOUND D0, MATCHED! pdg: " <<particleMother.pdgCode()<<"################ size array "<<indxDaughers.size()<<std::endl;
} else
ndaught = -indxDaughers.size();
} else if (pdgParticleMother == 4122) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
if (RecoDecay::isMatchedMCGen<true, false>(mcParticles, particleMother, pdgParticleMother, pdgDecayLc, true, nullptr, 3, &indxDaughers)) {
ndaught = 3;
} else
Expand Down Expand Up @@ -254,45 +259,53 @@
filteredTracksMC(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
}
}
void processData(soa::Filtered<TracksWithSelAndDca> const& tracks)
void processData(FilterCollisionsWithEvSel::iterator const& collision, soa::Filtered<TracksWithSelAndDca> const& tracks)
{
float zvtz = collision.posZ(); // dummy to silent compilation error about unused variable
if (trackPtSampling == 0) {
for (auto& track : tracks) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
fillTableData(track);
}
} else {
for (auto& track : lowPtTracks) {
auto lowPtTracksThisColl = lowPtTracks->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : lowPtTracksThisColl) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
fillTableData(track);
}
for (auto& track : midPtTracks) {
auto midPtTracksThisColl = midPtTracks->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : midPtTracksThisColl) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
fillTableData(track);
}
for (auto& track : highPtTracks) {
auto highPtTracksThisColl = highPtTracks->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : highPtTracksThisColl) {
fillTableData(track);
}
}
}
PROCESS_SWITCH(FilterTracks, processData, "process data", true);
void processCollisions(CollisionsWithEvSel::iterator const& collision)
void processCollisions(FilterCollisionsWithEvSel::iterator const& collision)
{
filterCollTable(collision.bcId(), collision.posX(), collision.posY(), collision.posZ(), collision.covXX(), collision.covXY(), collision.covYY(), collision.covXZ(), collision.covYZ(), collision.covZZ(), collision.flags(), collision.chi2(), collision.numContrib(), collision.collisionTime(), collision.collisionTimeRes());
}
PROCESS_SWITCH(FilterTracks, processCollisions, "process collisions", true);

void processMC(soa::Filtered<TracksWithSelAndDcaMc> const& tracks, aod::McParticles const& mcParticles)
void processMC(FilterCollisionsWithEvSel::iterator const& collision, soa::Filtered<TracksWithSelAndDcaMc> const& tracks, aod::McParticles const& mcParticles)
{
float zvtz = collision.posZ(); // dummy to silent compilation error about unused variable
if (trackPtSampling == 0) {
for (auto& track : tracks) {
fillTableDataMC(track, mcParticles);
}
} else {
for (auto& track : lowPtTracksMC) {
auto lowPtTracksMCThisColl = lowPtTracksMC->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : lowPtTracksMCThisColl) {
fillTableDataMC(track, mcParticles);
}
for (auto& track : midPtTracksMC) {
auto midPtTracksMCThisColl = midPtTracksMC->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : midPtTracksMCThisColl) {
fillTableDataMC(track, mcParticles);
}
for (auto& track : highPtTracksMC) {
auto highPtTracksMCThisColl = highPtTracksMC->sliceByCached(aod::track::collisionId, collision.globalIndex(), cache);
for (auto& track : highPtTracksMCThisColl) {
fillTableDataMC(track, mcParticles);
}
}
Expand All @@ -304,12 +317,12 @@
std::vector<int> indxDaughers;
float etamax = 0;
bool isMatchedToSignal = false;
if (std::abs(pdgCode) == 310) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
isMatchedToSignal = RecoDecay::isMatchedMCGen<true, false>(mcParticles, mcpart, 310, pdgDecayKzero, true, nullptr, 1, &indxDaughers);
}
if (std::abs(pdgCode) == 421) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
isMatchedToSignal = RecoDecay::isMatchedMCGen<true, false>(mcParticles, mcpart, 421, pdgDecayDzero, true, nullptr, 3, &indxDaughers);
} else if (std::abs(pdgCode) == 4122) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
isMatchedToSignal = RecoDecay::isMatchedMCGen<true, false>(mcParticles, mcpart, 4122, pdgDecayLc, true, nullptr, 3, &indxDaughers);
// std::cout<<"Lc found, matched to MC? "<<isMatchedToSignal<<std::endl;
// if(!isMatchedToSignal){
Expand All @@ -328,7 +341,7 @@
etamax = eta;
}
}
if (pdgCode == 310) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
selectedGenParticles(mcpart.pdgCode(), mcpart.mcCollisionId(), 0, mcpart.pt(), mcpart.y(), etamax, 0, 0);
continue;
}
Expand Down
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