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ITS: GPU: adapt seed refit #14877

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Merged
davidrohr merged 2 commits into from
Dec 3, 2025
+214 −121
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ITS: GPU: adapt seed refit #14877

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8ee93b8
ITS: GPU: adapt seed refit
f3sch Dec 1, 2025
b4c185a
ITS: simplify buildTrackSeed
f3sch Dec 1, 2025
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10 changes: 7 additions & 3 deletions Detectors/ITSMFT/ITS/tracking/GPU/ITStrackingGPU/TrackingKernels.h
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Original file line number Diff line number Diff line change
Expand Up @@ -209,13 +209,17 @@ void processNeighboursHandler(const int startLayer,
template <int nLayers = 7>
void trackSeedHandler(CellSeed<nLayers>* trackSeeds,
const TrackingFrameInfo** foundTrackingFrameInfo,
const Cluster** unsortedClusters,
o2::its::TrackITSExt* tracks,
std::vector<float>& minPtsHost,
const std::vector<float>& layerRadiiHost,
const std::vector<float>& minPtsHost,
const unsigned int nSeeds,
const float Bz,
const int startLevel,
float maxChi2ClusterAttachment,
float maxChi2NDF,
const float maxChi2ClusterAttachment,
const float maxChi2NDF,
const int reseedIfShorter,
const bool shiftRefToCluster,
const o2::base::Propagator* propagator,
const o2::base::PropagatorF::MatCorrType matCorrType,
const int nBlocks,
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16 changes: 10 additions & 6 deletions Detectors/ITSMFT/ITS/tracking/GPU/cuda/TrackerTraitsGPU.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -325,17 +325,21 @@ void TrackerTraitsGPU<nLayers>::findRoads(const int iteration)
mTimeFrameGPU->createTrackITSExtDevice(trackSeeds);
mTimeFrameGPU->loadTrackSeedsDevice(trackSeeds);

trackSeedHandler(mTimeFrameGPU->getDeviceTrackSeeds(), // CellSeed* trackSeeds
mTimeFrameGPU->getDeviceArrayTrackingFrameInfo(), // TrackingFrameInfo** foundTrackingFrameInfo
mTimeFrameGPU->getDeviceTrackITSExt(), // o2::its::TrackITSExt* tracks
this->mTrkParams[iteration].MinPt, // std::vector<float>& minPtsHost,
trackSeedHandler(mTimeFrameGPU->getDeviceTrackSeeds(), // CellSeed*
mTimeFrameGPU->getDeviceArrayTrackingFrameInfo(), // TrackingFrameInfo**
mTimeFrameGPU->getDeviceArrayUnsortedClusters(), // Cluster**
mTimeFrameGPU->getDeviceTrackITSExt(), // o2::its::TrackITSExt*
this->mTrkParams[iteration].LayerRadii, // const std::vector<float>&
this->mTrkParams[iteration].MinPt, // const std::vector<float>&
trackSeeds.size(), // const size_t nSeeds
this->mBz, // const float Bz
startLevel, // const int startLevel,
this->mTrkParams[0].MaxChi2ClusterAttachment, // float maxChi2ClusterAttachment
this->mTrkParams[0].MaxChi2NDF, // float maxChi2NDF
mTimeFrameGPU->getDevicePropagator(), // const o2::base::Propagator* propagator
this->mTrkParams[0].CorrType, // o2::base::PropagatorImpl<float>::MatCorrType
this->mTrkParams[0].ReseedIfShorter,
this->mTrkParams[0].ShiftRefToCluster,
mTimeFrameGPU->getDevicePropagator(), // const o2::base::Propagator* propagator
this->mTrkParams[0].CorrType, // o2::base::PropagatorImpl<float>::MatCorrType
conf.nBlocksTracksSeeds[iteration],
conf.nThreadsTracksSeeds[iteration]);

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