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ITS: Vertexer return early and only one arena #14496

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Merged
f3sch merged 1 commit into from
Jul 11, 2025
Merged

ITS: Vertexer return early and only one arena #14496

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33 changes: 19 additions & 14 deletions Detectors/ITSMFT/ITS/tracking/src/VertexerTraits.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -214,13 +214,16 @@ void VertexerTraits::computeTracklets(const int iteration)
mTimeFrame->getNTrackletsROF(pivotRofId, 1) = std::accumulate(mTimeFrame->getNTrackletsCluster(pivotRofId, 1).begin(), mTimeFrame->getNTrackletsCluster(pivotRofId, 1).end(), 0);
}
});
});

mTimeFrame->computeTrackletsPerROFScans();
mTimeFrame->getTracklets()[0].resize(mTimeFrame->getTotalTrackletsTF(0));
mTimeFrame->getTracklets()[1].resize(mTimeFrame->getTotalTrackletsTF(1));
mTimeFrame->computeTrackletsPerROFScans();
if (auto tot0 = mTimeFrame->getTotalTrackletsTF(0), tot1 = mTimeFrame->getTotalTrackletsTF(1);
tot0 == 0 || tot1 == 0) {
return;
} else {
mTimeFrame->getTracklets()[0].resize(tot0);
mTimeFrame->getTracklets()[1].resize(tot1);
}

mTaskArena->execute([&] {
tbb::parallel_for(
tbb::blocked_range<short>(0, (short)mTimeFrame->getNrof()),
[&](const tbb::blocked_range<short>& Rofs) {
Expand Down Expand Up @@ -266,18 +269,20 @@ void VertexerTraits::computeTracklets(const int iteration)
if (mTimeFrame->hasMCinformation()) {
for (const auto& trk : mTimeFrame->getTracklets()[0]) {
o2::MCCompLabel label;
int sortedId0{mTimeFrame->getSortedIndex(trk.rof[0], 0, trk.firstClusterIndex)};
int sortedId1{mTimeFrame->getSortedIndex(trk.rof[1], 1, trk.secondClusterIndex)};
for (const auto& lab0 : mTimeFrame->getClusterLabels(0, mTimeFrame->getClusters()[0][sortedId0].clusterId)) {
for (const auto& lab1 : mTimeFrame->getClusterLabels(1, mTimeFrame->getClusters()[1][sortedId1].clusterId)) {
if (lab0 == lab1 && lab0.isValid()) {
label = lab0;
if (!trk.isEmpty()) {
int sortedId0{mTimeFrame->getSortedIndex(trk.rof[0], 0, trk.firstClusterIndex)};
int sortedId1{mTimeFrame->getSortedIndex(trk.rof[1], 1, trk.secondClusterIndex)};
for (const auto& lab0 : mTimeFrame->getClusterLabels(0, mTimeFrame->getClusters()[0][sortedId0].clusterId)) {
for (const auto& lab1 : mTimeFrame->getClusterLabels(1, mTimeFrame->getClusters()[1][sortedId1].clusterId)) {
if (lab0 == lab1 && lab0.isValid()) {
label = lab0;
break;
}
}
if (label.isValid()) {
break;
}
}
if (label.isValid()) {
break;
}
}
mTimeFrame->getTrackletsLabel(0).emplace_back(label);
}
Expand Down