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 "AliLog.h"
  29 #include <TFolder.h>
  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
  38 //_____________________________________________________________________________
  39 AliMonitorHLT::AliMonitorHLT(AliTPCParam* param)
  40 {
  41 // create a HLT monitor object with the given parameters
  42
  43   fParam = param;
  44 }
  45
  46 //_____________________________________________________________________________
  47 AliMonitorHLT::AliMonitorHLT(const AliMonitorHLT& monitor) :
  48   AliMonitor(monitor)
  49 {
  50   AliFatal("copy constructor not implemented");
  51 }
  52
  53 //_____________________________________________________________________________
  54 AliMonitorHLT& AliMonitorHLT::operator = (const AliMonitorHLT& /*monitor*/)
  55 {
  56   AliFatal("assignment operator not implemented");
  57   return *this;
  58 }
  59
  60
  61 //_____________________________________________________________________________
  62 void AliMonitorHLT::CreateHistos(TFolder* folder)
  63 {
  64 // create the HLT monitor histograms
  65
  66   fFolder = folder->AddFolder("HLT", "HLT");
  67
  68   fClustersCharge = CreateHisto1("ClustersCharge",
  69                                  "charge distribution of clusters",
  70                                  100, 0, 1000, "charge", "#Delta N/N",
  71                                  AliMonitorHisto::kNormEvents);
  72
  73   Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp();
  74   fNClustersVsRow = CreateHisto1("NClustersVsRow",
  75                                  "mean number of clusters per pad row",
  76                                  nRows, -0.5, nRows-0.5,
  77                                  "pad row", "<N_{clusters}>",
  78                                  AliMonitorHisto::kNormEvents);
  79
  80   Int_t nSector = fParam->GetNInnerSector();
  81   fNClustersVsSector = CreateHisto1("NClustersVsSector",
  82                                     "mean number of clusters per sector",
  83                                     nSector, -0.5, nSector-0.5,
  84                                     "sector", "<N_{clusters}>",
  85                                     AliMonitorHisto::kNormEvents);
  86
  87   fNTracks = CreateTrend("NTracks", "number of tracks per event",
  88                          "N_{tracks}");
  89
  90   fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
  91                           90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
  92                           AliMonitorHisto::kNormNone);
  93
  94   fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
  95                            100, -2, 2, "#eta", "#Delta N/N",
  96                            AliMonitorHisto::kNormEntries);
  97
  98   fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
  99                            120, 0, 360, "#phi [#circ]", "#Delta N/N",
 100                            AliMonitorHisto::kNormEntries);
 101
 102   fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
 103                            200, 0, 200, "N_{hits}", "#Delta N/N",
 104                            AliMonitorHisto::kNormNone);
 105
 106   fTrackXYvsNHits = CreateHisto2("TrackXYvsNHits", "XY vs Number of hits per track",
 107                                  50, 0, 200,50,0,10,
 108                                  "N_{hits}","Radius [cm]","#Delta N/N",
 109                                  AliMonitorHisto::kNormNone);
 110
 111   fTrackZvsNHits = CreateHisto2("TrackZvsNHits", "Z vs Number of hits per track",
 112                                  50, 0, 200,50,-20,20,
 113                                  "N_{hits}","Z [cm]","#Delta N/N",
 114                                  AliMonitorHisto::kNormNone);
 115
 116   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
 117                                100, 0, 3, 100, 0, 1000,
 118                                "p [GeV/c]", "dE/dx", "#Delta N/N",
 119                                AliMonitorHisto::kNormEntries);
 120
 121   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
 122                                50, 0, 300,
 123                                "dE/dx", "#Delta N/N",
 124                                AliMonitorHisto::kNormEntries);
 125
 126   fTrackDz0 = CreateHisto1("TrackDz0", "Dz0 of tracks",
 127                            100, -100, 100, "#Delta z0 [cm]", "#Delta N/N",
 128                            AliMonitorHisto::kNormEntries);
 129
 130   fTrackDr0 = CreateHisto1("TrackDr0", "Dr0 of tracks",
 131                            130, 80, 250, "#Delta r0 [cm]", "#Delta N/N",
 132                            AliMonitorHisto::kNormEntries);
 133
 134   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
 135                                20, -1, 1, 25, 0, 360,
 136                                "#eta", "#phi", "#Delta N/N",
 137                                AliMonitorHisto::kNormNone);
 138
 139   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
 140                                20, -1, 1, 25, 0, 360,
 141                                "#eta", "#phi", "#Delta N/N",
 142                                AliMonitorHisto::kNormNone);
 143
 144 }
 145
 146
 147 //_____________________________________________________________________________
 148 void AliMonitorHLT::FillHistos(AliRunLoader* /*runLoader*/,
 149                                AliRawReader* /*rawReader*/, AliESD* /*esd*/)
 150 {
 151 // fill the HLT monitor histogrms
 152
 153   AliL3MemHandler clusterHandler[36];
 154   AliL3SpacePointData *clusters[36];
 155   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
 156     char fileName[256];
 157     sprintf(fileName, "hlt/points_%d_-1.raw", iSector);
 158     if (!clusterHandler[iSector].SetBinaryInput(fileName)) {
 159       AliWarning(Form("could not open file %s", fileName));
 160       continue;
 161     }
 162     clusters[iSector] = (AliL3SpacePointData*) clusterHandler[iSector].Allocate();
 163     UInt_t nClusters = 0;
 164     clusterHandler[iSector].Binary2Memory(nClusters, clusters[iSector]);
 165
 166     for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
 167       AliL3SpacePointData& cluster = clusters[iSector][iCluster];
 168       fClustersCharge->Fill(cluster.fCharge);
 169       fNClustersVsRow->Fill(cluster.fPadRow);
 170       fNClustersVsSector->Fill(iSector);
 171     }
 172
 173     clusterHandler[iSector].CloseBinaryInput();
 174   }
 175
 176   fNClustersVsSector->ScaleErrorBy(10.);
 177
 178   AliL3MemHandler memHandler;
 179   if (!memHandler.SetBinaryInput("hlt/tracks.raw")) {
 180     AliWarning("could not open file hlt/tracks.raw");
 181     return;
 182   }
 183   AliL3TrackArray* tracks = new AliL3TrackArray;
 184   memHandler.Binary2TrackArray(tracks);
 185   Double_t xc,yc,zc;
 186   AliL3Vertex vertex;
 187
 188   fNTracks->Fill(tracks->GetNTracks());
 189   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
 190     AliL3Track* track = tracks->GetCheckedTrack(iTrack);
 191     if(!track) continue;
 192     track->CalculateHelix();
 193     track->GetClosestPoint(&vertex,xc,yc,zc);
 194     if(TMath::Abs(zc)>10.) continue;
 195     fTrackPt->Fill(track->GetPt());
 196     fTrackEta->Fill(track->GetPseudoRapidity());
 197     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
 198     if(track->GetPt()>3.) {
 199       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
 200       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
 201     }
 202     fTrackDz0->Fill(track->GetZ0());
 203     fTrackDr0->Fill(track->GetR0());
 204     fTrackNHits->Fill(track->GetNHits());
 205     fTrackXYvsNHits->Fill(track->GetNHits(),TMath::Sqrt(xc*xc+yc*yc));
 206     fTrackZvsNHits->Fill(track->GetNHits(),zc);
 207
 208     // Track dEdx
 209     Int_t nc=track->GetNHits();
 210     UInt_t *hits = track->GetHitNumbers();
 211     Float_t sampleDEdx[159];
 212     for (Int_t iHit = 0; iHit < nc; iHit++) {
 213       UInt_t hitID = hits[iHit];
 214       Int_t iSector = (hitID>>25) & 0x7f;
 215       UInt_t position = hitID&0x3fffff;
 216       UChar_t padrow = clusters[iSector][position].fPadRow;
 217       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
 218       if (padrow>63)
 219         pWidth = AliL3Transform::GetPadPitchWidthUp();
 220       Float_t corr=1.; if (padrow>63) corr=0.67;
 221       sampleDEdx[iHit] = clusters[iSector][position].fCharge/pWidth*corr;
 222       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
 223       Double_t s = sin(crossingangle);
 224       Double_t t = track->GetTgl();
 225       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
 226     }
 227
 228     /* Cook dEdx */
 229     Int_t i;
 230     Int_t swap;//stupid sorting
 231     do {
 232       swap=0;
 233       for (i=0; i<nc-1; i++) {
 234         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
 235         Float_t tmp=sampleDEdx[i];
 236         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
 237         swap++;
 238       }
 239     } while (swap);
 240
 241     Double_t low=0.05; Double_t up=0.7;
 242     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
 243     Float_t trackDEdx=0;
 244     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
 245     trackDEdx /= (nu-nl+1);
 246
 247     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
 248     if(track->GetP()>0.4 && track->GetP()<1.0)
 249       fTrackDEdx->Fill(trackDEdx);
 250   }
 251
 252   delete tracks;
 253   memHandler.CloseBinaryInput();
 254 }