PWG2/FLOW/macros/runFlowAnalysisOnTheFly.C

   1 #include "TStopwatch.h"
   2 #include "TObjArray"
   3 #include "Riostream.h"
   4 #include "TFile.h"
   5
   6 //--------------------------------------------------------------------------------------
   7 // RUN SETTINGS
   8 // flow analysis method can be: (set to kTRUE or kFALSE)
   9 Bool_t SP    = kTRUE;
  10 Bool_t LYZ1  = kTRUE;
  11 Bool_t LYZ2  = kFALSE;
  12 Bool_t LYZEP = kFALSE;
  13 Bool_t GFC   = kTRUE;
  14 Bool_t QC    = kTRUE;
  15 Bool_t FQD   = kFALSE;
  16 Bool_t MCEP  = kTRUE;
  17 //--------------------------------------------------------------------------------------
  18
  19 //......................................................................................
  20 // Set the event parameters:
  21 Int_t iMultiplicityOfRP = 500; // multiplicity of RPs
  22 Double_t dMultiplicitySpreadOfRP = 100; // multiplicity spread of RPs
  23
  24 Double_t dV2RP = 0.05; // elliptic flow of RPs
  25 Double_t dV2SpreadRP = 0.001; // elliptic flow spread of RPs
  26
  27 Double_t dV1RP = 0.0; // directed flow of RPs
  28 Double_t dV1SpreadRP = 0.0; // directed flow spread of RPs
  29 //......................................................................................
  30
  31 enum anaModes {mLocal,mLocalSource,mLocalPAR,};
  32 // mLocal: Analyze data on your computer using aliroot
  33 // mLocalPAR: Analyze data on your computer using root + PAR files
  34 // mLocalSource: Analyze data on your computer using root + source files
  35
  36 int runFlowAnalysisOnTheFly(Int_t mode=mLocal, Int_t nEvts=100)
  37 {
  38  TStopwatch timer;
  39  timer.Start();
  40
  41  if (LYZ1 && LYZ2)  {cout<<"WARNING: you cannot run LYZ1 and LYZ2 at the same time! LYZ2 needs the output from LYZ1.  "<<endl; exit(); }
  42  if (LYZ2 && LYZEP) {cout<<"WARNING: you cannot run LYZ2 and LYZEP at the same time! LYZEP needs the output from LYZ2."<<endl; exit(); }
  43  if (LYZ1 && LYZEP) {cout<<"WARNING: you cannot run LYZ1 and LYZEP at the same time! LYZEP needs the output from LYZ2."<<endl; exit(); }
  44
  45  cout<<endl;
  46  cout<<endl;
  47  cout<<"      ---- ARE YOU READY TO FLY ? ----      "<<endl;
  48  cout<<endl;
  49
  50  cout<<endl;
  51  cout<<" ---- BEGIN FLOW ANALYSIS 'ON THE FLY' ---- "<<endl;
  52  cout<<endl;
  53  cout<<endl;
  54
  55  LoadLibraries(mode);
  56
  57  // Initialize the random generator
  58  TTimeStamp dt;
  59  UInt_t sseed = dt.GetNanoSec()/1000;
  60
  61  //---------------------------------------------------------------------------------------
  62  // Initialize the flowevent maker
  63  AliFlowEventSimpleMakerOnTheFly* eventMakerOnTheFly = new AliFlowEventSimpleMakerOnTheFly(sseed);
  64
  65  //---------------------------------------------------------------------------------------
  66  // Initialize all the flow methods:
  67  AliFlowAnalysisWithQCumulants    *qc    = NULL;
  68  AliFlowAnalysisWithCumulants     *gfc   = NULL;
  69  AliFittingQDistribution          *fqd   = NULL;
  70  AliFlowAnalysisWithLeeYangZeros  *lyz1  = NULL;
  71  AliFlowAnalysisWithLeeYangZeros  *lyz2  = NULL;
  72  AliFlowAnalysisWithLYZEventPlane *lyzep = NULL;
  73  AliFlowAnalysisWithScalarProduct *sp    = NULL;
  74  AliFlowAnalysisWithMCEventPlane  *mcep  = NULL;
  75
  76  // MCEP = monte carlo event plane
  77  if (MCEP) {
  78    AliFlowAnalysisWithMCEventPlane *mcep = new AliFlowAnalysisWithMCEventPlane();
  79    mcep->Init();
  80  }
  81
  82   // QC = Q-cumulants
  83  if(QC) {
  84    AliFlowAnalysisWithQCumulants* qc = new AliFlowAnalysisWithQCumulants();
  85    qc->Init();
  86  }
  87
  88  // GFC = Generating Function Cumulants
  89  if(GFC) {
  90    AliFlowAnalysisWithCumulants* gfc = new AliFlowAnalysisWithCumulants();
  91    gfc->Init();
  92  }
  93
  94  // FQD = Fitting q-distribution
  95  if(FQD) {
  96    AliFittingQDistribution* fqd = new AliFittingQDistribution();
  97    fqd->Init();
  98  }
  99
 100  // SP = Scalar Product
 101  if(SP) {
 102    AliFlowAnalysisWithScalarProduct* sp = new AliFlowAnalysisWithScalarProduct();
 103    sp->Init();
 104  }
 105
 106  // LYZ1 = Lee-Yang Zeroes first run
 107  if(LYZ1) {
 108    AliFlowAnalysisWithLeeYangZeros* lyz1 = new AliFlowAnalysisWithLeeYangZeros();
 109    lyz1->SetFirstRun(kTRUE);
 110    lyz1->SetUseSum(kTRUE);
 111    lyz1->Init();
 112  }
 113
 114  // LYZ2 = Lee-Yang Zeroes second run
 115  if(LYZ2) {
 116    AliFlowAnalysisWithLeeYangZeros* lyz2 = new AliFlowAnalysisWithLeeYangZeros();
 117    // read the input file from the first run
 118    TString inputFileNameLYZ2 = "outputLYZ1analysis.root" ;
 119    TFile* inputFileLYZ2 = new TFile(inputFileNameLYZ2.Data(),"READ");
 120    if(!inputFileLYZ2 || inputFileLYZ2->IsZombie()) {
 121      cerr << " ERROR: NO First Run file... " << endl ;
 122      break;
 123    }
 124    else {
 125      TList* inputListLYZ2 = (TList*)inputFileLYZ2->Get("cobjLYZ1");
 126      if (!inputListLYZ2) {cout<<"Input list is NULL pointer!"<<endl; break;}
 127      else {
 128        cout<<"LYZ2 input file/list read..."<<endl;
 129        lyz2->SetFirstRunList(inputListLYZ2);
 130        lyz2->SetFirstRun(kFALSE);
 131        lyz2->SetUseSum(kTRUE);
 132        lyz2->Init();
 133      }
 134    }
 135  }
 136
 137  // LYZEP = Lee-Yang Zeroes event plane
 138  if(LYZEP) {
 139    AliFlowLYZEventPlane* ep = new AliFlowLYZEventPlane() ;
 140    AliFlowAnalysisWithLYZEventPlane* lyzep = new AliFlowAnalysisWithLYZEventPlane();
 141    // read the input file from the second lyz run
 142    TString inputFileNameLYZEP = "outputLYZ2analysis.root" ;
 143    TFile* inputFileLYZEP = new TFile(inputFileNameLYZEP.Data(),"READ");
 144    if(!inputFileLYZEP || inputFileLYZEP->IsZombie()) {
 145      cerr << " ERROR: NO Second Run file... " << endl ;
 146      break;
 147    }
 148    else {
 149      TList* inputListLYZEP = (TList*)inputFileLYZEP->Get("cobjLYZ2");
 150      if (!inputListLYZEP) {cout<<"Input list is NULL pointer!"<<endl; break;}
 151      else {
 152        cout<<"LYZEP input file/list read..."<<endl;
 153        ep   ->SetSecondRunList(inputListLYZEP);
 154        lyzep->SetSecondRunList(inputListLYZEP);
 155        ep   ->Init();
 156        lyzep->Init();
 157      }
 158    }
 159  }
 160  //---------------------------------------------------------------------------------------
 161
 162  // set the global event parameters:
 163  eventMakerOnTheFly->SetMultiplicityOfRP(iMultiplicityOfRP);
 164  eventMakerOnTheFly->SetMultiplicitySpreadOfRP(dMultiplicitySpreadOfRP);
 165  eventMakerOnTheFly->SetV1RP(dV1RP);
 166  eventMakerOnTheFly->SetV1SpreadRP(dV1SpreadRP);
 167  eventMakerOnTheFly->SetV2RP(dV2RP);
 168  eventMakerOnTheFly->SetV2SpreadRP(dV2SpreadRP);
 169
 170  //---------------------------------------------------------------------------------------
 171  // create and analyze events 'on the fly':
 172
 173  for(Int_t i=0;i<nEvts;i++) {
 174    // creating the event with above settings:
 175    AliFlowEventSimple *event = eventMakerOnTheFly->CreateEventOnTheFly();
 176
 177    // analyzing the created event 'on the fly':
 178    // do flow analysis for various methods:
 179    if(MCEP) mcep->Make(event);
 180    if(QC) qc->Make(event);
 181    if(GFC) gfc->Make(event);
 182    if(FQD) fqd->Make(event);
 183    if(LYZ1) lyz1->Make(event);
 184    if(LYZ2) lyz2->Make(event);
 185    if(LYZEP) lyzep->Make(event,ep);
 186    if(SP) sp->Make(event);
 187
 188    delete event;
 189  } // end of for(Int_t i=0;i<nEvts;i++)
 190  //---------------------------------------------------------------------------------------
 191
 192
 193
 194  //---------------------------------------------------------------------------------------
 195  // calculating and storing the final results of flow analysis
 196  if(MCEP) {mcep->Finish(); mcep->WriteHistograms("outputMCEPanalysis.root");}
 197  if(SP) {sp->Finish(); sp->WriteHistograms("outputSPanalysis.root");}
 198  if(QC) {qc->Finish(); qc->WriteHistograms("outputQCanalysis.root");}
 199  if(GFC) {gfc->Finish(); gfc->WriteHistograms("outputGFCanalysis.root");}
 200  if(FQD) {fqd->Finish(); fqd->WriteHistograms("outputFQDanalysis.root");}
 201  if(LYZ1) {lyz1->Finish(); lyz1->WriteHistograms("outputLYZ1analysis.root");}
 202  if(LYZ2) {lyz2->Finish(); lyz2->WriteHistograms("outputLYZ2analysis.root");}
 203  if(LYZEP) {lyzep->Finish(); lyzep->WriteHistograms("outputLYZEPanalysis.root");}
 204  //---------------------------------------------------------------------------------------
 205
 206
 207
 208  cout<<endl;
 209  cout<<endl;
 210  cout<<" ---- LANDED SUCCESSFULLY ---- "<<endl;
 211  cout<<endl;
 212
 213  timer.Stop();
 214  cout << endl;
 215  timer.Print();
 216 }
 217
 218 void SetupPar(char* pararchivename)
 219 {
 220   //Load par files, create analysis libraries
 221   //For testing, if par file already decompressed and modified
 222   //classes then do not decompress.
 223
 224   TString cdir(Form("%s", gSystem->WorkingDirectory() )) ;
 225   TString parpar(Form("%s.par", pararchivename)) ;
 226   if ( gSystem->AccessPathName(parpar.Data()) ) {
 227     gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ;
 228     TString processline(Form(".! make %s", parpar.Data())) ;
 229     gROOT->ProcessLine(processline.Data()) ;
 230     gSystem->ChangeDirectory(cdir) ;
 231     processline = Form(".! mv /tmp/%s .", parpar.Data()) ;
 232     gROOT->ProcessLine(processline.Data()) ;
 233   }
 234   if ( gSystem->AccessPathName(pararchivename) ) {
 235     TString processline = Form(".! tar xvzf %s",parpar.Data()) ;
 236     gROOT->ProcessLine(processline.Data());
 237   }
 238
 239   TString ocwd = gSystem->WorkingDirectory();
 240   gSystem->ChangeDirectory(pararchivename);
 241
 242   // check for BUILD.sh and execute
 243   if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) {
 244     printf("*******************************\n");
 245     printf("*** Building PAR archive    ***\n");
 246     cout<<pararchivename<<endl;
 247     printf("*******************************\n");
 248
 249     if (gSystem->Exec("PROOF-INF/BUILD.sh")) {
 250       Error("runProcess","Cannot Build the PAR Archive! - Abort!");
 251       return -1;
 252     }
 253   }
 254   // check for SETUP.C and execute
 255   if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) {
 256     printf("*******************************\n");
 257     printf("*** Setup PAR archive       ***\n");
 258     cout<<pararchivename<<endl;
 259     printf("*******************************\n");
 260     gROOT->Macro("PROOF-INF/SETUP.C");
 261   }
 262
 263   gSystem->ChangeDirectory(ocwd.Data());
 264   printf("Current dir: %s\n", ocwd.Data());
 265 }
 266
 267 void LoadLibraries(const anaModes mode) {
 268
 269   //--------------------------------------
 270   // Load the needed libraries most of them already loaded by aliroot
 271   //--------------------------------------
 272   gSystem->Load("libTree.so");
 273   gSystem->Load("libGeom.so");
 274   gSystem->Load("libVMC.so");
 275   gSystem->Load("libXMLIO.so");
 276   gSystem->Load("libPhysics.so");
 277
 278   //----------------------------------------------------------
 279   // >>>>>>>>>>> Local mode <<<<<<<<<<<<<<
 280   //----------------------------------------------------------
 281   if (mode==mLocal) {
 282     //--------------------------------------------------------
 283     // If you want to use already compiled libraries
 284     // in the aliroot distribution
 285     //--------------------------------------------------------
 286     gSystem->Load("libSTEERBase");
 287     gSystem->Load("libESD");
 288     gSystem->Load("libAOD");
 289     gSystem->Load("libANALYSIS");
 290     gSystem->Load("libANALYSISalice");
 291     gSystem->Load("libCORRFW.so");
 292     cerr<<"libCORRFW.so loaded..."<<endl;
 293     gSystem->Load("libPWG2flowCommon.so");
 294     cerr<<"libPWG2flowCommon.so loaded..."<<endl;
 295     gSystem->Load("libPWG2flowTasks.so");
 296     cerr<<"libPWG2flowTasks.so loaded..."<<endl;
 297   }
 298
 299   else if (mode == mLocalPAR) {
 300     //--------------------------------------------------------
 301     //If you want to use root and par files from aliroot
 302     //--------------------------------------------------------
 303      //If you want to use root and par files from aliroot
 304     //--------------------------------------------------------
 305     SetupPar("STEERBase");
 306     SetupPar("ESD");
 307     SetupPar("AOD");
 308     SetupPar("ANALYSIS");
 309     SetupPar("ANALYSISalice");
 310     SetupPar("PWG2AOD");
 311     SetupPar("CORRFW");
 312     SetupPar("PWG2flowCommon");
 313     cerr<<"PWG2flowCommon.par loaded..."<<endl;
 314     SetupPar("PWG2flowTasks");
 315     cerr<<"PWG2flowTasks.par loaded..."<<endl;
 316   }
 317
 318   //---------------------------------------------------------
 319   // <<<<<<<<<< Source mode >>>>>>>>>>>>
 320   //---------------------------------------------------------
 321   else if (mode==mLocalSource) {
 322
 323     // In root inline compile
 324
 325
 326     // Constants
 327     gROOT->LoadMacro("AliFlowCommon/AliFlowCommonConstants.cxx+");
 328     gROOT->LoadMacro("AliFlowCommon/AliFlowLYZConstants.cxx+");
 329     gROOT->LoadMacro("AliFlowCommon/AliFlowCumuConstants.cxx+");
 330
 331     // Flow event
 332     gROOT->LoadMacro("AliFlowCommon/AliFlowVector.cxx+");
 333     gROOT->LoadMacro("AliFlowCommon/AliFlowTrackSimple.cxx+");
 334     gROOT->LoadMacro("AliFlowCommon/AliFlowEventSimple.cxx+");
 335
 336     // Cuts
 337     gROOT->LoadMacro("AliFlowCommon/AliFlowTrackSimpleCuts.cxx+");
 338
 339     // Output histosgrams
 340     gROOT->LoadMacro("AliFlowCommon/AliFlowCommonHist.cxx+");
 341     gROOT->LoadMacro("AliFlowCommon/AliFlowCommonHistResults.cxx+");
 342     gROOT->LoadMacro("AliFlowCommon/AliFlowLYZHist1.cxx+");
 343     gROOT->LoadMacro("AliFlowCommon/AliFlowLYZHist2.cxx+");
 344
 345     // Functions needed for various methods
 346     gROOT->LoadMacro("AliFlowCommon/AliCumulantsFunctions.cxx+");
 347     gROOT->LoadMacro("AliFlowCommon/AliFittingFunctionsForQDistribution.cxx+");
 348     gROOT->LoadMacro("AliFlowCommon/AliFlowLYZEventPlane.cxx+");
 349
 350     // Flow Analysis code for various methods
 351     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithMCEventPlane.cxx+");
 352     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithScalarProduct.cxx+");
 353     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithLYZEventPlane.cxx+");
 354     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithLeeYangZeros.cxx+");
 355     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithCumulants.cxx+");
 356     gROOT->LoadMacro("AliFlowCommon/AliFlowAnalysisWithQCumulants.cxx+");
 357     gROOT->LoadMacro("AliFlowCommon/AliFittingQDistribution.cxx+");
 358
 359     // Class to fill the FlowEvent without aliroot dependence
 360     // can be found in the directory FlowEventMakers
 361     gROOT->LoadMacro("FlowEventMakers/FlowEventSimpleMaker.cxx+");
 362
 363     cout << "finished loading macros!" << endl;
 364
 365   }
 366
 367 }
 368
 369