Adding detailed debug info in case of fatal error during the decoding
[u/mrichter/AliRoot.git] / RAW / AliHoughFilter.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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11  * appear in the supporting documentation. The authors make no claims     *
12  * about the suitability of this software for any purpose. It is          *
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14  **************************************************************************/
15
16 /* $Id$ */
17
18 ///////////////////////////////////////////////////////////////////////////////
19 //                                                                           //
20 // high level filter algorithm for TPC using a hough transformation          //
21 //                                                                           //
22 ///////////////////////////////////////////////////////////////////////////////
23
24 #include <TStopwatch.h>
25
26 #include "AliL3StandardIncludes.h"
27 #include "AliL3Logging.h"
28 #include "AliL3Transform.h"
29 #include "AliL3Hough.h"
30 #include "AliLog.h"
31 #include <AliL3ITSclusterer.h>
32 #include <AliL3ITSVertexerZ.h>
33 #include <AliL3ITStracker.h>
34
35 #include "AliHoughFilter.h"
36
37 #include "AliRawReaderRoot.h"
38 #include <AliMagF.h>
39 #include <AliMagFMaps.h>
40 #include <AliKalmanTrack.h>
41 #include <AliITSgeom.h>
42
43 ClassImp(AliHoughFilter)
44
45 //_____________________________________________________________________________
46 AliHoughFilter::AliHoughFilter()
47 {
48 // default constructor
49
50   // Init debug level
51   AliL3Log::fgLevel = AliL3Log::kError;
52   if (AliDebugLevel() > 0) AliL3Log::fgLevel = AliL3Log::kWarning;
53   if (AliDebugLevel() > 1) AliL3Log::fgLevel = AliL3Log::kInformational;
54   if (AliDebugLevel() > 2) AliL3Log::fgLevel = AliL3Log::kDebug;
55
56   // Init TPC HLT geometry
57   const char *path = gSystem->Getenv("ALICE_ROOT");
58   Char_t pathname[1024];
59   strcpy(pathname,path);
60   strcat(pathname,"/HLT/src");
61   if (!AliL3Transform::Init(pathname, kFALSE))
62     AliError("HLT initialization failed!");
63
64   // Init magnetic field
65   AliMagF* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., AliMagFMaps::k5kG);
66   AliTracker::SetFieldMap(field,kTRUE);
67   fPtmin = 0.1*AliL3Transform::GetSolenoidField();
68
69   // Init ITS geometry
70   fITSgeom = new AliITSgeom();
71   fITSgeom->ReadNewFile("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymmFMD.det");
72   if (!fITSgeom)
73     AliError("ITS geometry not found!");
74
75   // Init PID
76   AliPID pid;
77 }
78
79 //_____________________________________________________________________________
80 Bool_t AliHoughFilter::Filter(AliRawEvent* event, AliESD* esd)
81 {
82   // Run fast online reconstruction
83   // based on the HLT tracking algorithms
84
85   TStopwatch globaltimer;
86   globaltimer.Start();
87
88   TStopwatch timer;
89   timer.Start();
90
91   TTree *treeITSclusters = new TTree("TreeL3ITSclusters"," "); //make a tree
92   treeITSclusters->SetDirectory(0);
93
94   RunITSclusterer(event,treeITSclusters);
95   RunITSvertexer(esd,treeITSclusters);
96   RunTPCtracking(event,esd);
97   RunITStracking(esd,treeITSclusters);
98   delete treeITSclusters;
99
100   AliInfo(Form("Event filter has finished in %f seconds\n\n\n\n\n\n",globaltimer.RealTime()));
101
102   return kTRUE;
103 }
104
105 //_____________________________________________________________________________
106 void AliHoughFilter::RunITSclusterer(AliRawEvent* event, TTree *treeClusters)
107 {
108   // Run ITS Clusterer
109   // The clusters are stored in a tree
110
111   TStopwatch timer;
112   timer.Start();
113
114   if(!fITSgeom)
115     AliError("ITS geometry not created!");
116   AliL3ITSclusterer clusterer(fITSgeom);
117   AliRawReader *itsrawreader=new AliRawReaderRoot(event);
118   clusterer.Digits2Clusters(itsrawreader,treeClusters);
119   delete itsrawreader;
120   AliInfo(Form("ITS clusterer has finished in %f seconds\n",timer.RealTime()));
121
122 }
123
124
125 //_____________________________________________________________________________
126 void AliHoughFilter::RunITSvertexer(AliESD* esd, TTree *treeClusters)
127 {
128   // Run SPD vertexerZ
129   // Store the result in the ESD
130
131   TStopwatch timer;
132   timer.Start();
133
134   AliL3ITSVertexerZ vertexer;
135   AliESDVertex *vertex = vertexer.FindVertexForCurrentEvent(fITSgeom,treeClusters);
136   esd->SetVertex(vertex);
137   AliInfo(Form("ITS vertexer has finished in %f seconds\n",timer.RealTime()));
138
139 }
140
141 //_____________________________________________________________________________
142 void AliHoughFilter::RunTPCtracking(AliRawEvent* event, AliESD* esd)
143 {
144   // Run hough transform tracking in TPC
145   // The z of the vertex is taken from the ESD
146   // The result of the tracking is stored in the ESD
147   TStopwatch timer;
148   timer.Start();
149
150   const AliESDVertex *vertex = esd->GetVertex();
151   Float_t zvertex = vertex->GetZv();
152
153   AliL3Hough *hough1 = new AliL3Hough();
154     
155   hough1->SetThreshold(4);
156   hough1->CalcTransformerParams(fPtmin);
157   hough1->SetPeakThreshold(70,-1);
158   hough1->Init(100,4,event,zvertex);
159   hough1->SetAddHistograms();
160
161   AliL3Hough *hough2 = new AliL3Hough();
162   
163   hough2->SetThreshold(4);
164   hough2->CalcTransformerParams(fPtmin);
165   hough2->SetPeakThreshold(70,-1);
166   hough2->Init(100,4,event,zvertex);
167   hough2->SetAddHistograms();
168
169   Int_t nglobaltracks = 0;
170   /* In case we run HLT code in 2 threads */
171   hough1->StartProcessInThread(0,17);
172   hough2->StartProcessInThread(18,35);
173
174   if(hough1->WaitForThreadFinish())
175     ::Fatal("AliL3Hough::WaitForThreadFinish"," Can not join the required thread! ");
176   if(hough2->WaitForThreadFinish())
177     ::Fatal("AliL3Hough::WaitForThreadFinish"," Can not join the required thread! ");
178
179     /* In case we run HLT code in the main thread
180     for(Int_t slice=0; slice<=17; slice++)
181       {
182         hough1->ReadData(slice,0);
183         hough1->Transform();
184         hough1->AddAllHistogramsRows();
185         hough1->FindTrackCandidatesRow();
186         hough1->AddTracks();
187       }
188     for(Int_t slice=18; slice<=35; slice++)
189       {
190         hough2->ReadData(slice,0);
191         hough2->Transform();
192         hough2->AddAllHistogramsRows();
193         hough2->FindTrackCandidatesRow();
194         hough2->AddTracks();
195       }
196     */
197
198   nglobaltracks += hough1->FillESD(esd);
199   nglobaltracks += hough2->FillESD(esd);
200
201     /* In case we want to debug the ESD
202     gSystem->MakeDirectory("hough1");
203     hough1->WriteTracks("./hough1");
204     gSystem->MakeDirectory("hough2");
205     hough2->WriteTracks("./hough2");
206     */
207
208   delete hough1;
209   delete hough2;
210
211   AliInfo(Form("\nHough Transformer has found %d TPC tracks in %f seconds\n\n", nglobaltracks,timer.RealTime()));
212
213 }
214
215 //_____________________________________________________________________________
216 void AliHoughFilter::RunITStracking(AliESD* esd, TTree *treeClusters)
217 {
218   // Run the ITS tracker
219   // The tracks from the HT TPC tracking are used as seeds
220   // The prologated tracks are updated in the ESD
221   TStopwatch timer;
222   timer.Start();
223
224   Double_t vtxPos[3];
225   Double_t vtxErr[3]={0.005,0.005,0.010};
226   const AliESDVertex *vertex = esd->GetVertex();
227   vertex->GetXYZ(vtxPos);
228
229   AliL3ITStracker itsTracker(fITSgeom);
230   itsTracker.SetVertex(vtxPos,vtxErr);
231
232   itsTracker.LoadClusters(treeClusters);
233   itsTracker.Clusters2Tracks(esd);
234   itsTracker.UnloadClusters();
235   AliInfo(Form("ITS tracker has finished in %f seconds\n",timer.RealTime()));
236
237 }