//-*- Mode: C++ -*-
// @(#) $Id$
-
-//* This file is property of and copyright by the ALICE HLT Project *
-//* ALICE Experiment at CERN, All rights reserved. *
-//* See cxx source for full Copyright notice *
+// ************************************************************************
+// This file is property of and copyright by the ALICE HLT Project *
+// ALICE Experiment at CERN, All rights reserved. *
+// See cxx source for full Copyright notice *
+// *
+//*************************************************************************
#ifndef ALIHLTTPCCATRACKER_H
#define ALIHLTTPCCATRACKER_H
-#include "Rtypes.h"
+#include "AliHLTTPCCADef.h"
+#include "AliHLTTPCCAGPUConfig.h"
#include "AliHLTTPCCAParam.h"
#include "AliHLTTPCCARow.h"
+#include "AliHLTTPCCAHit.h"
+#include <iostream>
+#include "AliHLTArray.h"
+#include "AliHLTTPCCAHitId.h"
+#include "AliHLTTPCCASliceData.h"
+#include "AliHLTTPCCATracklet.h"
+#include "AliHLTTPCCAOutTrack.h"
+#include "AliHLTTPCCASliceOutput.h"
+#include "AliHLTTPCCATrackletConstructor.h"
class AliHLTTPCCATrack;
-class AliHLTTPCCAHit;
-class AliHLTTPCCACell;
-class AliHLTTPCCAOutTrack;
class AliHLTTPCCATrackParam;
-class AliHLTTPCCAEndPoint;
+class AliHLTTPCCAClusterData;
/**
* @class AliHLTTPCCATracker
- *
- * Slice tracker for ALICE HLT.
+ *
+ * Slice tracker for ALICE HLT.
* The class reconstructs tracks in one slice of TPC.
* The reconstruction algorithm is based on the Cellular Automaton method
*
- * The CA tracker is designed stand-alone.
+ * The CA tracker is designed stand-alone.
* It is integrated to the HLT framework via AliHLTTPCCATrackerComponent interface.
* The class is under construction.
*
*/
+
+class AliHLTTPCCAClusterData;
+
class AliHLTTPCCATracker
{
- public:
+ public:
+
+ AliHLTTPCCATracker()
+ : fParam(),
+ fOutputControl(),
+ fClusterData( 0 ),
+ fData(),
+ fIsGPUTracker( false ),
+ fGPUDebugLevel( 0 ),
+ fGPUDebugOut( 0 ),
+ fRowStartHitCountOffset( NULL ),
+ fTrackletTmpStartHits( NULL ),
+ fGPUTrackletTemp( NULL ),
+ fRowBlockTracklets( NULL ),
+ fRowBlockPos( NULL ),
+ fBlockStartingTracklet( NULL ),
+ fGPUParametersConst(),
+ fCommonMem( 0 ),
+ fHitMemory( 0 ),
+ fHitMemorySize( 0 ),
+ fTrackletMemory( 0 ),
+ fTrackletMemorySize( 0 ),
+ fTrackMemory( 0 ),
+ fTrackMemorySize( 0 ),
+ fTrackletStartHits( 0 ),
+ fTracklets( 0 ),
+ fTrackletRowHits( NULL ),
+ fTracks( 0 ),
+ fTrackHits( 0 ),
+ fOutput( 0 )
+ {
+ // constructor
+ }
+ ~AliHLTTPCCATracker();
+
+ struct StructGPUParameters
+ {
+ StructGPUParameters() : fScheduleFirstDynamicTracklet( 0 ), fGPUError( 0 ) {}
+ int fScheduleFirstDynamicTracklet; //Last Tracklet with fixed position in sheduling
+ int fGPUError; //Signalizes error on GPU during GPU Reconstruction, kind of return value
+ };
+
+ struct StructGPUParametersConst
+ {
+ StructGPUParametersConst() : fGPUFixedBlockCount( 0 ), fGPUiSlice( 0 ), fGPUnSlices( 0 ) {}
+ int fGPUFixedBlockCount; //Count of blocks that is used for this tracker in fixed schedule situations
+ int fGPUiSlice;
+ int fGPUnSlices;
+ };
+
+ struct commonMemoryStruct
+ {
+ commonMemoryStruct() : fNTracklets( 0 ), fNTracks( 0 ), fNTrackHits( 0 ), fGPUParameters() {}
+ int fNTracklets; // number of tracklets
+ int fNTracks; // number of reconstructed tracks
+ int fNTrackHits; // number of track hits
+ StructGPUParameters fGPUParameters;
+ };
+
+ void Initialize( const AliHLTTPCCAParam ¶m );
+
+ void StartEvent();
+
+ int CheckEmptySlice();
+ void WriteOutput();
+
+#if !defined(HLTCA_GPUCODE)
+ void Reconstruct();
+#endif
+
+ //Make Reconstruction steps directly callable (Used for GPU debugging)
+ void RunNeighboursFinder();
+ void RunNeighboursCleaner();
+ void RunStartHitsFinder();
+ void RunTrackletConstructor();
+ void RunTrackletSelector();
+
+ //GPU Tracker Interface
+ void SetGPUTracker();
+ void SetGPUDebugLevel(int Level, std::ostream *NewDebugOut = NULL) {fGPUDebugLevel = Level;if (NewDebugOut) fGPUDebugOut = NewDebugOut;}
+
+ char* SetGPUTrackerCommonMemory(char* pGPUMemory);
+ char* SetGPUTrackerHitsMemory(char* pGPUMemory, int MaxNHits);
+ char* SetGPUTrackerTrackletsMemory(char* pGPUMemory, int MaxNTracklets);
+ char* SetGPUTrackerTracksMemory(char* pGPUMemory, int MaxNTracks, int MaxNHits );
+
+ //Debugging Stuff
+ void DumpSliceData(std::ostream &out); //Dump Input Slice Data
+ void DumpLinks(std::ostream &out); //Dump all links to file (for comparison after NeighboursFinder/Cleaner)
+ void DumpStartHits(std::ostream &out); //Same for Start Hits
+ void DumpHitWeights(std::ostream &out); //....
+ void DumpTrackHits(std::ostream &out); //Same for Track Hits
+ void DumpTrackletHits(std::ostream &out); //Same for Track Hits
+
+ GPUd() void GetErrors2( int iRow, const AliHLTTPCCATrackParam &t, float &Err2Y, float &Err2Z ) const;
+ GPUd() void GetErrors2( int iRow, float z, float sinPhi, float cosPhi, float DzDs, float &Err2Y, float &Err2Z ) const;
+
+ void FitTrack( const AliHLTTPCCATrack &track, float *t0 = 0 ) const;
+ void FitTrackFull( const AliHLTTPCCATrack &track, float *t0 = 0 ) const;
+
+ void SetupCommonMemory();
+ void SetPointersHits( int MaxNHits );
+ void SetPointersTracklets ( int MaxNTracklets );
+ void SetPointersTracks( int MaxNTracks, int MaxNHits );
+
+ void SetOutput( AliHLTTPCCASliceOutput** out ) { fOutput = out; }
+
+ void ReadEvent( AliHLTTPCCAClusterData *clusterData );
- AliHLTTPCCATracker();
- AliHLTTPCCATracker( const AliHLTTPCCATracker& );
- AliHLTTPCCATracker &operator=( const AliHLTTPCCATracker& );
+#if !defined(HLTCA_GPUCODE)
+ GPUh() void WriteEvent( std::ostream &out );
+ GPUh() void WriteTracks( std::ostream &out ) ;
+ GPUh() void ReadTracks( std::istream &in );
+#endif
+
+ GPUhd() const AliHLTTPCCAParam &Param() const { return fParam; }
+ GPUhd() void SetParam( const AliHLTTPCCAParam &v ) { fParam = v; }
+
+ GPUhd() const AliHLTTPCCASliceOutput::outputControlStruct* OutputControl() const { return fOutputControl; }
+ GPUh() void SetOutputControl( AliHLTTPCCASliceOutput::outputControlStruct* val) { fOutputControl = val; }
+
+ GPUhd() AliHLTTPCCAClusterData *ClusterData() const { return fClusterData; }
+ GPUhd() const AliHLTTPCCASliceData &Data() const { return fData; }
+ GPUhd() AliHLTTPCCASliceData *pData() {return &fData; }
+
+ GPUh() void ClearSliceDataHitWeights() {fData.ClearHitWeights();}
+
+ GPUhd() const AliHLTTPCCARow &Row( int rowIndex ) const { return fData.Row( rowIndex ); }
+ GPUh() const AliHLTTPCCARow &Row( const AliHLTTPCCAHitId &HitId ) const { return fData.Row( HitId.RowIndex() ); }
+
+ GPUhd() double Timer( int i ) const { return fTimers[i]; }
+ GPUhd() void SetTimer( int i, double v ) { fTimers[i] = v; }
+
+ GPUhd() int NHitsTotal() const { return fData.NumberOfHits(); }
+
+ GPUd() void SetHitLinkUpData( const AliHLTTPCCARow &row, int hitIndex, short v ) { fData.SetHitLinkUpData( row, hitIndex, v ); }
+ GPUd() void SetHitLinkDownData( const AliHLTTPCCARow &row, int hitIndex, short v ) { fData.SetHitLinkDownData( row, hitIndex, v ); }
+ GPUd() short HitLinkUpData( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.HitLinkUpData( row, hitIndex ); }
+ GPUd() short HitLinkDownData( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.HitLinkDownData( row, hitIndex ); }
+
+ GPUd() const ushort2 *HitData( const AliHLTTPCCARow &row ) const { return fData.HitData(row); }
+ GPUd() const short_v *HitLinkUpData ( const AliHLTTPCCARow &row ) const { return fData.HitLinkUpData(row); }
+ GPUd() const short_v *HitLinkDownData( const AliHLTTPCCARow &row ) const { return fData.HitLinkDownData(row); }
+ GPUd() const ushort_v *FirstHitInBin( const AliHLTTPCCARow &row ) const { return fData.FirstHitInBin(row); }
+
+ GPUd() int FirstHitInBin( const AliHLTTPCCARow &row, int binIndex ) const { return fData.FirstHitInBin( row, binIndex ); }
+
+ GPUd() unsigned short HitDataY( const AliHLTTPCCARow &row, int hitIndex ) const {
+ return fData.HitDataY( row, hitIndex );
+ }
+ GPUd() unsigned short HitDataZ( const AliHLTTPCCARow &row, int hitIndex ) const {
+ return fData.HitDataZ( row, hitIndex );
+ }
+ GPUd() ushort2 HitData( const AliHLTTPCCARow &row, int hitIndex ) const {
+ return fData.HitData( row, hitIndex );
+ }
- virtual ~AliHLTTPCCATracker();
+ GPUhd() int HitInputID( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.ClusterDataIndex( row, hitIndex ); }
- void Initialize( AliHLTTPCCAParam ¶m );
+ /**
+ * The hit weight is used to determine whether a hit belongs to a certain tracklet or another one
+ * competing for the same hit. The tracklet that has a higher weight wins. Comparison is done
+ * using the the number of hits in the tracklet (the more hits it has the more it keeps). If
+ * tracklets have the same number of hits then it doesn't matter who gets it, but it should be
+ * only one. So a unique number (row index is good) is added in the least significant part of
+ * the weight
+ */
+ static int CalculateHitWeight( int NHits, int unique ) {
+ return ( NHits << 16 ) + unique;
+ }
+ GPUd() void MaximizeHitWeight( const AliHLTTPCCARow &row, int hitIndex, int weight ) {
+ fData.MaximizeHitWeight( row, hitIndex, weight );
+ }
+ GPUd() int HitWeight( const AliHLTTPCCARow &row, int hitIndex ) const {
+ return fData.HitWeight( row, hitIndex );
+ }
- void StartEvent();
+ GPUhd() int NTracklets() const { return fCommonMem->fNTracklets; }
+ GPUhd() int *NTracklets() { return &fCommonMem->fNTracklets; }
- void ReadHitRow( Int_t iRow, AliHLTTPCCAHit *Row, Int_t NHits );
+ GPUhd() const AliHLTTPCCAHitId &TrackletStartHit( int i ) const { return fTrackletStartHits[i]; }
+ GPUhd() AliHLTTPCCAHitId *TrackletStartHits() const { return fTrackletStartHits; }
+ GPUhd() AliHLTTPCCAHitId *TrackletTmpStartHits() const { return fTrackletTmpStartHits; }
+ GPUhd() const AliHLTTPCCATracklet &Tracklet( int i ) const { return fTracklets[i]; }
+ GPUhd() AliHLTTPCCATracklet *Tracklets() const { return fTracklets;}
+ GPUhd() int* TrackletRowHits() { return fTrackletRowHits; }
- void Reconstruct();
+ GPUhd() int *NTracks() const { return &fCommonMem->fNTracks; }
+ GPUhd() AliHLTTPCCATrack *Tracks() const { return fTracks; }
+ GPUhd() int *NTrackHits() const { return &fCommonMem->fNTrackHits; }
+ GPUhd() AliHLTTPCCAHitId *TrackHits() const { return fTrackHits; }
- void FindCells();
- void MergeCells();
- void FindTracks();
+ GPUhd() AliHLTTPCCASliceOutput** Output() const { return fOutput; }
- AliHLTTPCCAParam &Param(){ return fParam; }
- AliHLTTPCCARow *Rows(){ return fRows; }
+ GPUh() commonMemoryStruct *CommonMemory() {return(fCommonMem); }
+ static GPUh() size_t CommonMemorySize() { return(sizeof(AliHLTTPCCATracker::commonMemoryStruct)); }
+ GPUh() char* &HitMemory() {return(fHitMemory); }
+ GPUh() size_t HitMemorySize() const {return(fHitMemorySize); }
+ GPUh() char* &TrackletMemory() {return(fTrackletMemory); }
+ GPUh() size_t TrackletMemorySize() const {return(fTrackletMemorySize); }
+ GPUh() char* &TrackMemory() {return(fTrackMemory); }
+ GPUh() size_t TrackMemorySize() const {return(fTrackMemorySize); }
+ GPUhd() AliHLTTPCCARow* SliceDataRows() {return(fData.Rows()); }
- Int_t *OutTrackHits(){ return fOutTrackHits; }
- Int_t NOutTrackHits() const { return fNOutTrackHits; }
- AliHLTTPCCAOutTrack *OutTracks(){ return fOutTracks; }
- Int_t NOutTracks() const { return fNOutTracks; }
+ GPUhd() uint3* RowStartHitCountOffset() const {return(fRowStartHitCountOffset);}
+ GPUhd() AliHLTTPCCATrackletConstructor::AliHLTTPCCAGPUTempMemory* GPUTrackletTemp() const {return(fGPUTrackletTemp);}
+ GPUhd() int* RowBlockTracklets(int reverse, int iRowBlock) const {return(&fRowBlockTracklets[(reverse * ((fParam.NRows() / HLTCA_GPU_SCHED_ROW_STEP) + 1) + iRowBlock) * fCommonMem->fNTracklets]);}
+ GPUhd() int* RowBlockTracklets() const {return(fRowBlockTracklets);}
+ GPUhd() int4* RowBlockPos(int reverse, int iRowBlock) const {return(&fRowBlockPos[reverse * ((fParam.NRows() / HLTCA_GPU_SCHED_ROW_STEP) + 1) + iRowBlock]);}
+ GPUhd() int4* RowBlockPos() const {return(fRowBlockPos);}
+ GPUhd() uint2* BlockStartingTracklet() const {return(fBlockStartingTracklet);}
+ GPUhd() StructGPUParameters* GPUParameters() const {return(&fCommonMem->fGPUParameters);}
+ GPUhd() StructGPUParametersConst* GPUParametersConst() {return(&fGPUParametersConst);}
+
+ GPUh() unsigned long long int* PerfTimer(unsigned int i) {return &fPerfTimers[i]; }
- AliHLTTPCCATrack *Tracks(){ return fTracks; }
- Int_t NTracks() const { return fNTracks; }
+#ifdef HLTCA_GPU_TRACKLET_CONSTRUCTOR_DO_PROFILE
+ char* fStageAtSync; //Pointer to array storing current stage for every thread at every sync point
+ int* fThreadTimes;
+#endif
+
+ private:
+ AliHLTTPCCAParam fParam; // parameters
+ double fTimers[10];
+ unsigned long long int fPerfTimers[16]; // running CPU time for different parts of the algorithm
+ void StandalonePerfTime(int i);
+
+ AliHLTTPCCASliceOutput::outputControlStruct* fOutputControl;
+
+ /** A pointer to the ClusterData object that the SliceData was created from. This can be used to
+ * merge clusters from inside the SliceTracker code and recreate the SliceData. */
+ AliHLTTPCCAClusterData *fClusterData; // ^
+ AliHLTTPCCASliceData fData; // The SliceData object. It is used to encapsulate the storage in memory from the access
+
+ bool fIsGPUTracker; // is it GPU tracker object
+ int fGPUDebugLevel; // debug level
+ std::ostream *fGPUDebugOut; // debug stream
+
+ //GPU Temp Arrays
+ uint3* fRowStartHitCountOffset; //Offset, length and new offset of start hits in row
+ AliHLTTPCCAHitId *fTrackletTmpStartHits; //Unsorted start hits
+ AliHLTTPCCATrackletConstructor::AliHLTTPCCAGPUTempMemory *fGPUTrackletTemp; //Temp Memory for GPU Tracklet Constructor
+ int* fRowBlockTracklets; //Reference which tracklet is processed in which rowblock next
+ int4* fRowBlockPos; //x is last tracklet to be processed, y is last tracklet already processed, z is last tracklet to be processed in next iteration, w is initial x value to check if tracklet must be initialized
+ uint2* fBlockStartingTracklet;
- Double_t *Timers(){ return fTimers; }
+ StructGPUParametersConst fGPUParametersConst;
- static Int_t IRowICell2ID( Int_t iRow, Int_t iCell ){
- return (iCell<<8)+iRow;
- }
- static Int_t ID2IRow( Int_t CellID ){
- return ( CellID%256 );
- }
- static Int_t ID2ICell( Int_t CellID ){
- return ( CellID>>8 );
- }
- AliHLTTPCCACell &ID2Cell( Int_t CellID ) const{
- return fRows[CellID%256].Cells()[CellID>>8];
- }
- AliHLTTPCCARow &ID2Row( Int_t CellID ) const{
- return fRows[CellID%256];
- }
-
- AliHLTTPCCAEndPoint &ID2Point( Int_t PointID ) const{
- return fRows[PointID%256].EndPoints()[PointID>>8];
- }
+ // event
- void FitTrack( AliHLTTPCCATrack &track, Float_t *t0 = 0 ) const;
+ commonMemoryStruct *fCommonMem; // common event memory
- protected:
-
- AliHLTTPCCAParam fParam; // parameters
+ char *fHitMemory; // event memory for hits
+ size_t fHitMemorySize; // size of the event memory [bytes]
- AliHLTTPCCARow *fRows;// array of hit rows
+ char *fTrackletMemory;
+ size_t fTrackletMemorySize;
- Int_t *fOutTrackHits; // output array of ID's of the reconstructed hits
- Int_t fNOutTrackHits; // number of hits in fOutTrackHits array
- AliHLTTPCCAOutTrack *fOutTracks; // output array of the reconstructed tracks
- Int_t fNOutTracks; // number of tracks in fOutTracks array
+ char *fTrackMemory; // event memory for tracks
+ size_t fTrackMemorySize; // size of the event memory [bytes]
- Int_t fNHitsTotal;// total number of hits in event
- AliHLTTPCCATrack *fTracks; // reconstructed tracks
- Int_t fNTracks;// number of reconstructed tracks
- Int_t *fCellHitPointers;// global array of cell->hit pointers
- AliHLTTPCCACell *fCells;// global array of cells
- AliHLTTPCCAEndPoint *fEndPoints;// global array of endpoints
- Double_t fTimers[10]; // running CPU time for different parts of the algorithm
+ AliHLTTPCCAHitId *fTrackletStartHits; // start hits for the tracklets
+ AliHLTTPCCATracklet *fTracklets; // tracklets
+ int *fTrackletRowHits;
- ClassDef(AliHLTTPCCATracker,1);
+ //
+ AliHLTTPCCATrack *fTracks; // reconstructed tracks
+ AliHLTTPCCAHitId *fTrackHits; // array of track hit numbers
+
+ // output
+
+ AliHLTTPCCASliceOutput **fOutput;
+
+ // disable copy
+ AliHLTTPCCATracker( const AliHLTTPCCATracker& );
+ AliHLTTPCCATracker &operator=( const AliHLTTPCCATracker& );
+
+ static int starthitSortComparison(const void*a, const void* b);
};
+
#endif
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