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Flexible config for start layer of ITS tracks #13952

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Flexible config for start layer of ITS tracks #13952

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2 changes: 1 addition & 1 deletion Detectors/ITSMFT/ITS/tracking/include/ITStracking/Configuration.h
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Expand Up @@ -95,7 +95,7 @@ struct TrackingParameters {
float MaxChi2ClusterAttachment = 60.f;
float MaxChi2NDF = 30.f;
std::vector<float> MinPt = {0.f, 0.f, 0.f, 0.f};
unsigned char StartLayerMask = 0x7F;
std::vector<unsigned short> StartLayerMask = std::vector<unsigned short>(1, 0xFFFF);
bool FindShortTracks = false;
bool PerPrimaryVertexProcessing = false;
bool SaveTimeBenchmarks = false;
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2 changes: 1 addition & 1 deletion Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx
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Expand Up @@ -573,7 +573,7 @@ void TrackerTraits::findRoads(const int iteration)
const int minimumLayer{startLevel - 1};
std::vector<CellSeed> trackSeeds;
for (int startLayer{mTrkParams[iteration].CellsPerRoad() - 1}; startLayer >= minimumLayer; --startLayer) {
if ((mTrkParams[iteration].StartLayerMask & (1 << (startLayer + 2))) == 0) {
if ((mTrkParams[iteration].StartLayerMask[mTrkParams[iteration].NLayers - (startLevel + 2)] & (1 << (startLayer + 2))) == 0) {
continue;
}
CA_DEBUGGER(std::cout << "\t\t > Starting processing layer " << startLayer << std::endl);
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4 changes: 3 additions & 1 deletion Detectors/ITSMFT/ITS/tracking/src/TrackingInterface.cxx
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Expand Up @@ -48,12 +48,14 @@ void ITSTrackingInterface::initialise()
trackParams[2].CellDeltaTanLambdaSigma *= 4.;
trackParams[2].MinTrackLength = 4;
trackParams[2].MinPt[3] = 0.2f;
trackParams[2].StartLayerMask = (1 << 6) + (1 << 3);
trackParams[2].StartLayerMask = std::vector<unsigned short>(trackParams[2].NLayers - trackParams[2].MinTrackLength + 1, 0x7F);
trackParams[2].StartLayerMask[3] = (1 << 6) + (1 << 3);
if (o2::its::TrackerParamConfig::Instance().doUPCIteration) {
trackParams[3].TrackletMinPt = 0.1f;
trackParams[3].CellDeltaTanLambdaSigma *= 4.;
trackParams[3].MinTrackLength = 4;
trackParams[3].DeltaROF = 0; // UPC specific setting
trackParams[3].StartLayerMask = std::vector<unsigned short>(trackParams[2].NLayers - trackParams[2].MinTrackLength + 1, 0x7F);
}
for (auto& param : trackParams) {
param.ZBins = 64;
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