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326c2d4b | 1 | //-*- Mode: C++ -*- |
2 | // @(#) $Id$ | |
ce565086 | 3 | // ************************************************************************ |
fbb9b71b | 4 | // This file is property of and copyright by the ALICE HLT Project * |
ce565086 | 5 | // ALICE Experiment at CERN, All rights reserved. * |
6 | // See cxx source for full Copyright notice * | |
7 | // * | |
8 | //************************************************************************* | |
326c2d4b | 9 | |
10 | #ifndef ALIHLTTPCCATRACKER_H | |
11 | #define ALIHLTTPCCATRACKER_H | |
12 | ||
13 | ||
00d07bcd | 14 | #include "AliHLTTPCCADef.h" |
326c2d4b | 15 | #include "AliHLTTPCCAParam.h" |
16 | #include "AliHLTTPCCARow.h" | |
00d07bcd | 17 | #include "AliHLTTPCCAHit.h" |
4687b8fc | 18 | #include <iostream> |
4acc2401 | 19 | #include "AliHLTArray.h" |
20 | #include "AliHLTTPCCAHitId.h" | |
21 | #include "AliHLTTPCCASliceData.h" | |
22 | #include "AliHLTTPCCATracklet.h" | |
23 | #include "AliHLTTPCCAOutTrack.h" | |
326c2d4b | 24 | |
d54804bf | 25 | class AliHLTTPCCATrack; |
d54804bf | 26 | class AliHLTTPCCATrackParam; |
4acc2401 | 27 | class AliHLTTPCCAClusterData; |
63d8b79d | 28 | class AliHLTTPCCASliceOutput; |
326c2d4b | 29 | |
30 | /** | |
31 | * @class AliHLTTPCCATracker | |
fbb9b71b | 32 | * |
33 | * Slice tracker for ALICE HLT. | |
dc4788ec | 34 | * The class reconstructs tracks in one slice of TPC. |
35 | * The reconstruction algorithm is based on the Cellular Automaton method | |
36 | * | |
fbb9b71b | 37 | * The CA tracker is designed stand-alone. |
dc4788ec | 38 | * It is integrated to the HLT framework via AliHLTTPCCATrackerComponent interface. |
39 | * The class is under construction. | |
40 | * | |
326c2d4b | 41 | */ |
42 | class AliHLTTPCCATracker | |
43 | { | |
7be9b0d7 | 44 | friend class AliHLTTPCCAGPUTracker; |
fbb9b71b | 45 | public: |
326c2d4b | 46 | |
7be9b0d7 | 47 | AliHLTTPCCATracker() |
48 | : | |
49 | fParam(), | |
50 | fClusterData( 0 ), | |
51 | fData(), | |
52 | fIsGPUTracker( false ), | |
53 | fGPUDebugLevel( 0 ), | |
54 | fGPUDebugOut( 0 ), | |
55 | fCommonMemory( 0 ), | |
56 | fCommonMemorySize( 0 ), | |
57 | fHitMemory( 0 ), | |
58 | fHitMemorySize( 0 ), | |
59 | fTrackMemory( 0 ), | |
60 | fTrackMemorySize( 0 ), | |
61 | fNTracklets( 0 ), | |
62 | fTrackletStartHits( 0 ), | |
63 | fTracklets( 0 ), | |
64 | fNTracks( 0 ), | |
65 | fTracks( 0 ), | |
66 | fNTrackHits( 0 ), | |
67 | fTrackHits( 0 ), | |
68 | fOutput( 0 ), | |
69 | fNOutTracks( 0 ), | |
70 | fOutTracks( 0 ), | |
71 | fNOutTrackHits( 0 ), | |
72 | fOutTrackHits( 0 ) | |
73 | { | |
74 | // constructor | |
75 | } | |
fbb9b71b | 76 | GPUd() ~AliHLTTPCCATracker(); |
326c2d4b | 77 | |
7be9b0d7 | 78 | void Initialize( const AliHLTTPCCAParam ¶m ); |
fbb9b71b | 79 | |
7be9b0d7 | 80 | void StartEvent(); |
fbb9b71b | 81 | |
7be9b0d7 | 82 | int CheckEmptySlice(); |
83 | void WriteOutput(); | |
fbb9b71b | 84 | |
7be9b0d7 | 85 | #if !defined(HLTCA_GPUCODE) |
fbb9b71b | 86 | void Reconstruct(); |
7be9b0d7 | 87 | #endif |
88 | ||
89 | //Make Reconstruction steps directly callable (Used for GPU debugging) | |
90 | void RunNeighboursFinder(); | |
91 | void RunNeighboursCleaner(); | |
92 | void RunStartHitsFinder(); | |
93 | void RunTrackletConstructor(); | |
94 | void RunTrackletSelector(); | |
95 | ||
96 | //GPU Tracker Interface | |
97 | void SetGPUTracker(); | |
98 | void SetGPUDebugLevel(int Level, std::ostream *NewDebugOut = NULL) {fGPUDebugLevel = Level;if (NewDebugOut) fGPUDebugOut = NewDebugOut;} | |
99 | ||
100 | char* SetGPUTrackerCommonMemory(char* pGPUMemory); | |
101 | char* SetGPUTrackerHitsMemory(char* pGPUMemory, int MaxNHits ); | |
102 | char* SetGPUTrackerTracksMemory(char* pGPUMemory, int MaxNTracks, int MaxNHits ); | |
103 | ||
104 | //Debugging Stuff | |
105 | void DumpLinks(std::ostream &out); //Dump all links to file (for comparison after NeighboursFinder/Cleaner) | |
106 | void DumpStartHits(std::ostream &out); //Same for Start Hits | |
107 | void DumpTrackHits(std::ostream &out); //Same for Track Hits | |
108 | void DumpTrackletHits(std::ostream &out); //Same for Track Hits | |
fbb9b71b | 109 | |
110 | GPUd() void GetErrors2( int iRow, const AliHLTTPCCATrackParam &t, float &Err2Y, float &Err2Z ) const; | |
111 | GPUd() void GetErrors2( int iRow, float z, float sinPhi, float cosPhi, float DzDs, float &Err2Y, float &Err2Z ) const; | |
112 | ||
4acc2401 | 113 | void FitTrack( const AliHLTTPCCATrack &track, float *t0 = 0 ) const; |
114 | void FitTrackFull( const AliHLTTPCCATrack &track, float *t0 = 0 ) const; | |
fbb9b71b | 115 | |
7be9b0d7 | 116 | void SetPointersCommon(); |
117 | void SetPointersHits( int MaxNHits ); | |
118 | void SetPointersTracks( int MaxNTracks, int MaxNHits ); | |
fbb9b71b | 119 | |
120 | #if !defined(HLTCA_GPUCODE) | |
7be9b0d7 | 121 | void ReadEvent( AliHLTTPCCAClusterData *clusterData ); |
122 | ||
fbb9b71b | 123 | GPUh() void WriteEvent( std::ostream &out ); |
fbb9b71b | 124 | GPUh() void WriteTracks( std::ostream &out ) ; |
125 | GPUh() void ReadTracks( std::istream &in ); | |
4687b8fc | 126 | #endif |
127 | ||
fbb9b71b | 128 | GPUhd() const AliHLTTPCCAParam &Param() const { return fParam; } |
129 | GPUhd() void SetParam( const AliHLTTPCCAParam &v ) { fParam = v; } | |
130 | ||
6de2bc40 | 131 | GPUhd() const AliHLTTPCCAClusterData *ClusterData() const { return fClusterData; } |
132 | GPUhd() const AliHLTTPCCASliceData &Data() const { return fData; } | |
4acc2401 | 133 | GPUhd() const AliHLTTPCCARow &Row( int rowIndex ) const { return fData.Row( rowIndex ); } |
7be9b0d7 | 134 | GPUh() const AliHLTTPCCARow &Row( const AliHLTTPCCAHitId &HitId ) const { return fData.Row( HitId.RowIndex() ); } |
4acc2401 | 135 | |
fbb9b71b | 136 | GPUhd() double Timer( int i ) const { return fTimers[i]; } |
137 | GPUhd() void SetTimer( int i, double v ) { fTimers[i] = v; } | |
138 | ||
4acc2401 | 139 | GPUhd() int NHitsTotal() const { return fData.NumberOfHits(); } |
fbb9b71b | 140 | |
7be9b0d7 | 141 | GPUd() void SetHitLinkUpData( const AliHLTTPCCARow &row, int hitIndex, short v ) { fData.SetHitLinkUpData( row, hitIndex, v ); } |
142 | GPUd() void SetHitLinkDownData( const AliHLTTPCCARow &row, int hitIndex, short v ) { fData.SetHitLinkDownData( row, hitIndex, v ); } | |
143 | GPUd() short HitLinkUpData( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.HitLinkUpData( row, hitIndex ); } | |
144 | GPUd() short HitLinkDownData( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.HitLinkDownData( row, hitIndex ); } | |
4acc2401 | 145 | |
7be9b0d7 | 146 | GPUd() int FirstHitInBin( const AliHLTTPCCARow &row, int binIndex ) const { return fData.FirstHitInBin( row, binIndex ); } |
4acc2401 | 147 | |
7be9b0d7 | 148 | GPUd() unsigned short HitDataY( const AliHLTTPCCARow &row, int hitIndex ) const { |
4acc2401 | 149 | return fData.HitDataY( row, hitIndex ); |
150 | } | |
7be9b0d7 | 151 | GPUd() unsigned short HitDataZ( const AliHLTTPCCARow &row, int hitIndex ) const { |
4acc2401 | 152 | return fData.HitDataZ( row, hitIndex ); |
153 | } | |
fbb9b71b | 154 | |
7be9b0d7 | 155 | GPUhd() int HitInputID( const AliHLTTPCCARow &row, int hitIndex ) const { return fData.ClusterDataIndex( row, hitIndex ); } |
4acc2401 | 156 | |
157 | /** | |
158 | * The hit weight is used to determine whether a hit belongs to a certain tracklet or another one | |
159 | * competing for the same hit. The tracklet that has a higher weight wins. Comparison is done | |
160 | * using the the number of hits in the tracklet (the more hits it has the more it keeps). If | |
161 | * tracklets have the same number of hits then it doesn't matter who gets it, but it should be | |
162 | * only one. So a unique number (row index is good) is added in the least significant part of | |
163 | * the weight | |
164 | */ | |
6de2bc40 | 165 | static int CalculateHitWeight( int NHits, int unique ) { |
4acc2401 | 166 | return ( NHits << 16 ) + unique; |
167 | } | |
7be9b0d7 | 168 | GPUd() void MaximizeHitWeight( const AliHLTTPCCARow &row, int hitIndex, int weight ) { |
4acc2401 | 169 | fData.MaximizeHitWeight( row, hitIndex, weight ); |
170 | } | |
7be9b0d7 | 171 | GPUd() int HitWeight( const AliHLTTPCCARow &row, int hitIndex ) const { |
4acc2401 | 172 | return fData.HitWeight( row, hitIndex ); |
173 | } | |
fbb9b71b | 174 | |
b8139972 | 175 | GPUhd() int NTracklets() const { return *fNTracklets; } |
4acc2401 | 176 | GPUhd() int *NTracklets() { return fNTracklets; } |
fbb9b71b | 177 | |
4acc2401 | 178 | GPUhd() const AliHLTTPCCAHitId &TrackletStartHit( int i ) const { return fTrackletStartHits[i]; } |
179 | GPUhd() AliHLTTPCCAHitId *TrackletStartHits() const { return fTrackletStartHits; } | |
180 | GPUhd() const AliHLTTPCCATracklet &Tracklet( int i ) const { return fTracklets[i]; } | |
fbb9b71b | 181 | GPUhd() AliHLTTPCCATracklet *Tracklets() const { return fTracklets;} |
182 | ||
183 | GPUhd() int *NTracks() const { return fNTracks; } | |
184 | GPUhd() AliHLTTPCCATrack *Tracks() const { return fTracks; } | |
185 | GPUhd() int *NTrackHits() const { return fNTrackHits; } | |
4acc2401 | 186 | GPUhd() AliHLTTPCCAHitId *TrackHits() const { return fTrackHits; } |
fbb9b71b | 187 | |
188 | GPUhd() const AliHLTTPCCASliceOutput * Output() const { return fOutput; } | |
189 | ||
190 | GPUhd() int *NOutTracks() const { return fNOutTracks; } | |
191 | GPUhd() AliHLTTPCCAOutTrack *OutTracks() const { return fOutTracks; } | |
4acc2401 | 192 | GPUhd() const AliHLTTPCCAOutTrack &OutTrack( int index ) const { return fOutTracks[index]; } |
fbb9b71b | 193 | GPUhd() int *NOutTrackHits() const { return fNOutTrackHits; } |
194 | GPUhd() int *OutTrackHits() const { return fOutTrackHits; } | |
4acc2401 | 195 | GPUhd() int OutTrackHit( int i ) const { return fOutTrackHits[i]; } |
fbb9b71b | 196 | |
7be9b0d7 | 197 | #ifndef CUDA_DEVICE_EMULATION |
fbb9b71b | 198 | private: |
7be9b0d7 | 199 | #endif |
200 | ||
4acc2401 | 201 | void SetupCommonMemory(); |
fbb9b71b | 202 | |
203 | AliHLTTPCCAParam fParam; // parameters | |
fbb9b71b | 204 | double fTimers[10]; // running CPU time for different parts of the algorithm |
205 | ||
4acc2401 | 206 | /** A pointer to the ClusterData object that the SliceData was created from. This can be used to |
207 | * merge clusters from inside the SliceTracker code and recreate the SliceData. */ | |
208 | AliHLTTPCCAClusterData *fClusterData; // ^ | |
209 | AliHLTTPCCASliceData fData; // The SliceData object. It is used to encapsulate the storage in memory from the access | |
fbb9b71b | 210 | |
7be9b0d7 | 211 | //Will this tracker run on GPU? |
212 | bool fIsGPUTracker; // is it GPU tracker | |
213 | int fGPUDebugLevel; // debug level | |
214 | std::ostream *fGPUDebugOut; // debug stream | |
215 | ||
4acc2401 | 216 | // event |
fbb9b71b | 217 | |
218 | char *fCommonMemory; // common event memory | |
7be9b0d7 | 219 | size_t fCommonMemorySize; // size of the event memory [bytes] |
fbb9b71b | 220 | |
221 | char *fHitMemory; // event memory for hits | |
7be9b0d7 | 222 | size_t fHitMemorySize; // size of the event memory [bytes] |
fbb9b71b | 223 | |
224 | char *fTrackMemory; // event memory for tracks | |
7be9b0d7 | 225 | size_t fTrackMemorySize; // size of the event memory [bytes] |
fbb9b71b | 226 | |
fbb9b71b | 227 | |
228 | int *fNTracklets; // number of tracklets | |
4acc2401 | 229 | AliHLTTPCCAHitId *fTrackletStartHits; // start hits for the tracklets |
fbb9b71b | 230 | AliHLTTPCCATracklet *fTracklets; // tracklets |
231 | ||
232 | // | |
233 | int *fNTracks; // number of reconstructed tracks | |
234 | AliHLTTPCCATrack *fTracks; // reconstructed tracks | |
235 | int *fNTrackHits; // number of track hits | |
4acc2401 | 236 | AliHLTTPCCAHitId *fTrackHits; // array of track hit numbers |
fbb9b71b | 237 | |
238 | // output | |
239 | ||
240 | AliHLTTPCCASliceOutput *fOutput; | |
241 | ||
242 | // obsolete output | |
243 | ||
244 | int *fNOutTracks; // number of tracks in fOutTracks array | |
245 | AliHLTTPCCAOutTrack *fOutTracks; // output array of the reconstructed tracks | |
246 | int *fNOutTrackHits; // number of hits in fOutTrackHits array | |
247 | int *fOutTrackHits; // output array of ID's of the reconstructed hits | |
248 | ||
4acc2401 | 249 | // disable copy |
250 | AliHLTTPCCATracker( const AliHLTTPCCATracker& ); | |
251 | AliHLTTPCCATracker &operator=( const AliHLTTPCCATracker& ); | |
326c2d4b | 252 | }; |
253 | ||
00d07bcd | 254 | |
326c2d4b | 255 | #endif |