Parallel SIMDized implementation of TRD tracking. More...

#include <LitTrackFinderNNVecElectron.h>

Collaboration diagram for lit::parallel::LitTrackFinderNNVecElectron:

Public Member Functions
	LitTrackFinderNNVecElectron ()
	Constructor.

virtual	~LitTrackFinderNNVecElectron ()
	Destructor.

void	DoFind (const PixelHitArray &hits, const TrackArray &trackSeeds, TrackArray &tracks)
	Main function for track reconstruction.

void	SetDetectorLayout (const LitDetectorLayoutElectron< fvec > &layout)

Private Member Functions
void	ArrangeHits (const PixelHitArray &hits)

void	InitTrackSeeds (const TrackArray &trackSeeds)

void	FollowTracks ()

void	PropagateToFirstStation (LitScalTrack *tracks[])

void	CollectHits (LitTrackParamScal par, LitScalTrack track, unsigned char stationGroup, unsigned char station)

void	ProcessStation (LitScalTrack *tracks[], unsigned char stationGroup, unsigned char station)

bool	AddNearestHit (LitScalTrack *track, const PixelHitConstIteratorPair &hits, unsigned int nofHits, int stationGroup, int station)

void	MinMaxIndex (const LitTrackParamScal *par, const PixelHitArray &hits, fscal maxErr, PixelHitConstIterator &first, PixelHitConstIterator &last)

Private Attributes
TrackArray	fTracks

LitDetectorLayoutElectron< fvec >	fLayout

LitHitDataElectron< fvec >	fHitData

unsigned char	fMaxNofMissingHits

fscal	fSigmaCoef

fscal	fMaxCovSq

fvec	fChiSqPixelHitCut

Detailed Description

Parallel SIMDized implementation of TRD tracking.

Parallel SIMDized implementation of TRD tracking. Input: array with track seeds and array with hits. Output: reconstructed tracks. Algorithm is based on track following and Kalman Filter methods. Implementation is based on nearest neighbor approach: track is propagated from station to station and nearest hit from validation gate is attached to track.

Author: Andrey Lebedev andre.nosp@m.y.le.nosp@m.bedev.nosp@m.@gsi.nosp@m..de

Date: 2010

Definition at line 45 of file LitTrackFinderNNVecElectron.h.

Constructor & Destructor Documentation

◆ LitTrackFinderNNVecElectron()

lit::parallel::LitTrackFinderNNVecElectron::LitTrackFinderNNVecElectron ( )

Constructor.

LitTrackFinderNNVecElectron.cxx

Author: Andrey Lebedev andre.nosp@m.y.le.nosp@m.bedev.nosp@m.@gsi.nosp@m..de

Since: 2010

Version: 1.0

Definition at line 31 of file LitTrackFinderNNVecElectron.cxx.

References fChiSqPixelHitCut, fMaxCovSq, fMaxNofMissingHits, and fSigmaCoef.

◆ ~LitTrackFinderNNVecElectron()

lit::parallel::LitTrackFinderNNVecElectron::~LitTrackFinderNNVecElectron ( )

virtual

Destructor.

Definition at line 39 of file LitTrackFinderNNVecElectron.cxx.

Member Function Documentation

◆ AddNearestHit()

bool lit::parallel::LitTrackFinderNNVecElectron::AddNearestHit	(	LitScalTrack *	track,
		const PixelHitConstIteratorPair &	hits,
		unsigned int	nofHits,
		int	stationGroup,
		int	station )

private

Definition at line 286 of file LitTrackFinderNNVecElectron.cxx.

References lit::parallel::LitScalTrack::AddHit(), fChiSqPixelHitCut, fHitData, lit::parallel::LitScalTrack::GetParamLast(), hits, lit::parallel::LitScalTrack::IncChiSq(), lit::parallel::LitFiltration(), lit::parallel::NDF(), lit::parallel::PackPixelHit(), lit::parallel::PackTrackParam(), lit::parallel::LitScalTrack::SetNDF(), lit::parallel::LitScalTrack::SetParamLast(), and lit::parallel::UnpackTrackParam().

Referenced by CollectHits().

◆ ArrangeHits()

void lit::parallel::LitTrackFinderNNVecElectron::ArrangeHits ( const PixelHitArray & hits )

private

Definition at line 70 of file LitTrackFinderNNVecElectron.cxx.

References fHitData, and hits.

Referenced by DoFind().

◆ CollectHits()

void lit::parallel::LitTrackFinderNNVecElectron::CollectHits	(	LitTrackParamScal *	par,
		LitScalTrack *	track,
		unsigned char	stationGroup,
		unsigned char	station )

private

Definition at line 266 of file LitTrackFinderNNVecElectron.cxx.

References AddNearestHit(), fHitData, hits, lit::parallel::LitScalTrack::IncNofMissingHits(), MinMaxIndex(), and lit::parallel::LitScalTrack::SetParamLast().

Referenced by ProcessStation().

◆ DoFind()

void lit::parallel::LitTrackFinderNNVecElectron::DoFind	(	const PixelHitArray &	hits,
		const TrackArray &	trackSeeds,
		TrackArray &	tracks )

Main function for track reconstruction.

Parameters

[in]	Hit	array.
[in]	Track	seed array.
[out]	Output	array with reconstructed tracks.

Definition at line 41 of file LitTrackFinderNNVecElectron.cxx.

References ArrangeHits(), fHitData, FollowTracks(), fTracks, lit::parallel::LitScalTrack::GetNofHits(), hits, InitTrackSeeds(), lit::parallel::LitScalTrack::IsGood(), and tracks.

◆ FollowTracks()

void lit::parallel::LitTrackFinderNNVecElectron::FollowTracks ( )

private

Definition at line 96 of file LitTrackFinderNNVecElectron.cxx.

References fLayout, fMaxNofMissingHits, fTracks, ProcessStation(), PropagateToFirstStation(), and tracks.

Referenced by DoFind().

◆ InitTrackSeeds()

void lit::parallel::LitTrackFinderNNVecElectron::InitTrackSeeds ( const TrackArray & trackSeeds )

private

Definition at line 81 of file LitTrackFinderNNVecElectron.cxx.

References fTracks, lit::parallel::LitScalTrack::GetParamFirst(), lit::parallel::LitScalTrack::GetParamLast(), lit::parallel::LitTrackParam< T >::Qp, lit::parallel::LitScalTrack::SetParamLast(), and lit::parallel::LitScalTrack::SetPreviousTrackId().

Referenced by DoFind().

◆ MinMaxIndex()

void lit::parallel::LitTrackFinderNNVecElectron::MinMaxIndex	(	const LitTrackParamScal *	par,
		const PixelHitArray &	hits,
		fscal	maxErr,
		PixelHitConstIterator &	first,
		PixelHitConstIterator &	last )