MONITOR/AliMonitorHLT.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  This class creates and fills the monitor histograms for the HLT          //
  21 //                                                                           //
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24
  25 #include "AliMonitorHLT.h"
  26 #include "AliMonitorTrend.h"
  27 #include "AliTPCParam.h"
  28 #include <TFolder.h>
  29 #ifdef ALI_HLT
  30 #include <stdlib.h>
  31 #include "AliL3MemHandler.h"
  32 #include "AliL3SpacePointData.h"
  33 #include "AliL3TrackArray.h"
  34 #include "AliL3Track.h"
  35 #include "AliL3Transform.h"
  36 #include "AliL3Vertex.h"
  37 #endif
  38
  39 //_____________________________________________________________________________
  40 AliMonitorHLT::AliMonitorHLT(AliTPCParam* param)
  41 {
  42 // create a HLT monitor object with the given parameters
  43
  44   fParam = param;
  45 }
  46
  47 //_____________________________________________________________________________
  48 AliMonitorHLT::AliMonitorHLT(const AliMonitorHLT& monitor) :
  49   AliMonitor(monitor)
  50 {
  51   Fatal("AliMonitorHLT", "copy constructor not implemented");
  52 }
  53
  54 //_____________________________________________________________________________
  55 AliMonitorHLT& AliMonitorHLT::operator = (const AliMonitorHLT& /*monitor*/)
  56 {
  57   Fatal("operator =", "assignment operator not implemented");
  58   return *this;
  59 }
  60
  61
  62 //_____________________________________________________________________________
  63 void AliMonitorHLT::CreateHistos(TFolder* folder)
  64 {
  65 // create the HLT monitor histograms
  66
  67   fFolder = folder->AddFolder("HLT", "HLT");
  68
  69   fClustersCharge = CreateHisto1("ClustersCharge",
  70                                  "charge distribution of clusters",
  71                                  100, 0, 1000, "charge", "#Delta N/N",
  72                                  AliMonitorHisto::kNormEvents);
  73
  74   Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp();
  75   fNClustersVsRow = CreateHisto1("NClustersVsRow",
  76                                  "mean number of clusters per pad row",
  77                                  nRows, -0.5, nRows-0.5,
  78                                  "pad row", "<N_{clusters}>",
  79                                  AliMonitorHisto::kNormEvents);
  80
  81   Int_t nSector = fParam->GetNInnerSector();
  82   fNClustersVsSector = CreateHisto1("NClustersVsSector",
  83                                     "mean number of clusters per sector",
  84                                     nSector, -0.5, nSector-0.5,
  85                                     "sector", "<N_{clusters}>",
  86                                     AliMonitorHisto::kNormEvents);
  87
  88   fNTracks = CreateTrend("NTracks", "number of tracks per event",
  89                          "N_{tracks}");
  90
  91   fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
  92                           90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
  93                           AliMonitorHisto::kNormNone);
  94
  95   fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
  96                            100, -2, 2, "#eta", "#Delta N/N",
  97                            AliMonitorHisto::kNormEntries);
  98
  99   fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
 100                            120, 0, 360, "#phi [#circ]", "#Delta N/N",
 101                            AliMonitorHisto::kNormEntries);
 102
 103   fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
 104                            200, 0, 200, "N_{hits}", "#Delta N/N",
 105                            AliMonitorHisto::kNormNone);
 106
 107   fTrackXYvsNHits = CreateHisto2("TrackXYvsNHits", "XY vs Number of hits per track",
 108                                  50, 0, 200,50,0,10,
 109                                  "N_{hits}","Radius [cm]","#Delta N/N",
 110                                  AliMonitorHisto::kNormNone);
 111
 112   fTrackZvsNHits = CreateHisto2("TrackZvsNHits", "Z vs Number of hits per track",
 113                                  50, 0, 200,50,-20,20,
 114                                  "N_{hits}","Z [cm]","#Delta N/N",
 115                                  AliMonitorHisto::kNormNone);
 116
 117   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
 118                                100, 0, 3, 100, 0, 1000,
 119                                "p [GeV/c]", "dE/dx", "#Delta N/N",
 120                                AliMonitorHisto::kNormEntries);
 121
 122   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
 123                                50, 0, 300,
 124                                "dE/dx", "#Delta N/N",
 125                                AliMonitorHisto::kNormEntries);
 126
 127   fTrackDz0 = CreateHisto1("TrackDz0", "Dz0 of tracks",
 128                            100, -100, 100, "#Delta z0 [cm]", "#Delta N/N",
 129                            AliMonitorHisto::kNormEntries);
 130
 131   fTrackDr0 = CreateHisto1("TrackDr0", "Dr0 of tracks",
 132                            130, 80, 250, "#Delta r0 [cm]", "#Delta N/N",
 133                            AliMonitorHisto::kNormEntries);
 134
 135   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
 136                                20, -1, 1, 25, 0, 360,
 137                                "#eta", "#phi", "#Delta N/N",
 138                                AliMonitorHisto::kNormNone);
 139
 140   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
 141                                20, -1, 1, 25, 0, 360,
 142                                "#eta", "#phi", "#Delta N/N",
 143                                AliMonitorHisto::kNormNone);
 144
 145 }
 146
 147
 148 //_____________________________________________________________________________
 149 void AliMonitorHLT::FillHistos(AliRunLoader* /*runLoader*/,
 150                                AliRawReader* /*rawReader*/)
 151 {
 152 // fill the HLT monitor histogrms
 153
 154 #ifndef ALI_HLT
 155   Warning("FillHistos", "the code was compiled without HLT support");
 156
 157 #else
 158   AliL3MemHandler clusterHandler[36];
 159   AliL3SpacePointData *clusters[36];
 160   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
 161     char fileName[256];
 162     sprintf(fileName, "hlt/points_%d_-1.raw", iSector);
 163     if (!clusterHandler[iSector].SetBinaryInput(fileName)) {
 164       Warning("FillHistos", "could not open file %s", fileName);
 165       continue;
 166     }
 167     clusters[iSector] = (AliL3SpacePointData*) clusterHandler[iSector].Allocate();
 168     UInt_t nClusters = 0;
 169     clusterHandler[iSector].Binary2Memory(nClusters, clusters[iSector]);
 170
 171     for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
 172       AliL3SpacePointData& cluster = clusters[iSector][iCluster];
 173       fClustersCharge->Fill(cluster.fCharge);
 174       fNClustersVsRow->Fill(cluster.fPadRow);
 175       fNClustersVsSector->Fill(iSector);
 176     }
 177
 178     clusterHandler[iSector].CloseBinaryInput();
 179   }
 180
 181   fNClustersVsSector->ScaleErrorBy(10.);
 182
 183   AliL3MemHandler memHandler;
 184   if (!memHandler.SetBinaryInput("hlt/tracks.raw")) {
 185     Warning("FillHistos", "could not open file hlt/tracks.raw");
 186     return;
 187   }
 188   AliL3TrackArray* tracks = new AliL3TrackArray;
 189   memHandler.Binary2TrackArray(tracks);
 190   Double_t xc,yc,zc;
 191   AliL3Vertex vertex;
 192
 193   fNTracks->Fill(tracks->GetNTracks());
 194   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
 195     AliL3Track* track = tracks->GetCheckedTrack(iTrack);
 196     if(!track) continue;
 197     track->CalculateHelix();
 198     track->GetClosestPoint(&vertex,xc,yc,zc);
 199     if(fabs(zc)>10.) continue;
 200     fTrackPt->Fill(track->GetPt());
 201     fTrackEta->Fill(track->GetPseudoRapidity());
 202     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
 203     if(track->GetPt()>3.) {
 204       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
 205       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
 206     }
 207     fTrackDz0->Fill(track->GetZ0());
 208     fTrackDr0->Fill(track->GetR0());
 209     fTrackNHits->Fill(track->GetNHits());
 210     fTrackXYvsNHits->Fill(track->GetNHits(),TMath::Sqrt(xc*xc+yc*yc));
 211     fTrackZvsNHits->Fill(track->GetNHits(),zc);
 212
 213     // Track dEdx
 214     Int_t nc=track->GetNHits();
 215     UInt_t *hits = track->GetHitNumbers();
 216     Float_t sampleDEdx[159];
 217     for (Int_t iHit = 0; iHit < nc; iHit++) {
 218       UInt_t hitID = hits[iHit];
 219       Int_t iSector = (hitID>>25) & 0x7f;
 220       UInt_t position = hitID&0x3fffff;
 221       UChar_t padrow = clusters[iSector][position].fPadRow;
 222       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
 223       if (padrow>63)
 224         pWidth = AliL3Transform::GetPadPitchWidthUp();
 225       Float_t corr=1.; if (padrow>63) corr=0.67;
 226       sampleDEdx[iHit] = clusters[iSector][position].fCharge/pWidth*corr;
 227       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
 228       Double_t s = sin(crossingangle);
 229       Double_t t = track->GetTgl();
 230       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
 231     }
 232
 233     /* Cook dEdx */
 234     Int_t i;
 235     Int_t swap;//stupid sorting
 236     do {
 237       swap=0;
 238       for (i=0; i<nc-1; i++) {
 239         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
 240         Float_t tmp=sampleDEdx[i];
 241         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
 242         swap++;
 243       }
 244     } while (swap);
 245
 246     Double_t low=0.05; Double_t up=0.7;
 247     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
 248     Float_t trackDEdx=0;
 249     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
 250     trackDEdx /= (nu-nl+1);
 251
 252     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
 253     if(track->GetP()>0.4 && track->GetP()<1.0)
 254       fTrackDEdx->Fill(trackDEdx);
 255   }
 256
 257   delete tracks;
 258   memHandler.CloseBinaryInput();
 259 #endif
 260 }