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