void prod_pid_mva(TString outpre="", int ev=0)
{
  // Macro created 02/10/2012 by S.Spataro
  // It loads a reconstruction file and compute PID informations

  // Verbosity level (0=quiet, 1=event level, 2=track level, 3=debug)
  Int_t iVerbose = 0; // just forget about it, for the moment
  
	// Number of events to process
  Int_t nEvents = ev;  // if 0 all the vents will be processed
  
  // Parameter file
  TString parFile = outpre+"_par.root"; // at the moment you do not need it
  
  // Digitisation file (ascii)
  TString digiFile = "all.par";
  
  // Output file
  TString outFile = outpre+"_pidmva.root";
  
  // -----   Timer   --------------------------------------------------------
  TStopwatch timer;
    // ------------------------------------------------------------------------
  
  // -----   Reconstruction run   -------------------------------------------
  FairRunAna *fRun= new FairRunAna();
  fRun->SetInputFile(outpre+"_sim.root");
  fRun->AddFriend(outpre+"_dig.root");
  fRun->AddFriend(outpre+"_rec.root");
  fRun->SetOutputFile(outFile);
  fRun->SetWriteRunInfoFile(kFALSE);
  FairGeane *Geane = new FairGeane();
  fRun->AddTask(Geane);

  // -----  Parameter database   --------------------------------------------
  TString emcDigiFile = gSystem->Getenv("VMCWORKDIR");
  emcDigiFile += "/macro/params/";
  emcDigiFile += digiFile;
  
  FairRuntimeDb* rtdb = fRun->GetRuntimeDb();
  FairParRootFileIo* parInput1 = new FairParRootFileIo();
  parInput1->open(parFile.Data());
  
  FairParAsciiFileIo* parIo1 = new FairParAsciiFileIo();
  parIo1->open(emcDigiFile.Data(),"in");
        
  rtdb->setFirstInput(parInput1);
  rtdb->setSecondInput(parIo1);

  // ------------------------------------------------------------------------

  PndPidCorrelator* corr = new PndPidCorrelator();
  //corr->SetVerbose();
  corr->SetInputBranch("SttMvdGemGenTrack");
  corr->SetInputIDBranch("SttMvdGemGenTrackID");
  corr->SetInputBranch2("FtsIdealGenTrack");
  corr->SetInputIDBranch2("FtsIdealGenTrackID");
  //corr->SetDebugMode(kTRUE);
  //corr->SetFast(kTRUE);
  fRun->AddTask(corr);

  PndMcCloner *clone = new PndMcCloner();
  fRun->AddTask(clone);
 
  PndPidIdealAssociatorTask *assMC= new PndPidIdealAssociatorTask();
  fRun->AddTask(assMC);

  PndPidMvdAssociatorTask *assMvd= new PndPidMvdAssociatorTask();
  fRun->AddTask(assMvd);

  PndPidMdtHCAssociatorTask *assMdt= new PndPidMdtHCAssociatorTask();
  fRun->AddTask(assMdt);

  PndPidDrcAssociatorTask *assDrc= new PndPidDrcAssociatorTask();
  fRun->AddTask(assDrc);

  PndPidDiscAssociatorTask *assDisc= new PndPidDiscAssociatorTask();
  fRun->AddTask(assDisc);

  PndPidSttAssociatorTask *assStt= new PndPidSttAssociatorTask();
  fRun->AddTask(assStt);

  PndPidEmcBayesAssociatorTask *assEMC= new PndPidEmcBayesAssociatorTask();
  fRun->AddTask(assEMC);
  
  // *** MVA
  std::vector<std::string> labels;
  std::vector<std::string> vars;

  // Class names
  labels.push_back("electron");
  labels.push_back("muon");
  labels.push_back("pion");
  labels.push_back("kaon");
  labels.push_back("proton");
  
  // Variable names 
  vars.push_back("p");
  vars.push_back("tht"); 
  vars.push_back("emc");
  vars.push_back("lat");
  vars.push_back("z20");
  vars.push_back("stt");
  vars.push_back("thetaC");
  
  TString weights= gSystem->Getenv("VMCWORKDIR");
  weights += "/macro/prod/PANDA_BDTG_Method.weights.xml";
  
  PndPidMvaAssociatorTask *assMVA = new PndPidMvaAssociatorTask();
  assMVA->SetWeightFileName(weights.Data());
  assMVA->SetClassNames(labels);
  assMVA->SetVarNames(vars);
  assMVA->SetClassifier(TMVA_BDT);

  fRun->AddTask(assMVA);
  
  // -----   Intialise and run   --------------------------------------------
  PndEmcMapper::Init(1);
  cout << "fRun->Init()" << endl;
  fRun->Init();

  timer.Start();
  fRun->Run(0,nEvents);
  // ------------------------------------------------------------------------


  // -----   Finish   -------------------------------------------------------
  timer.Stop();
  Double_t rtime = timer.RealTime();
  Double_t ctime = timer.CpuTime();
  cout << endl << endl;
  cout << "Macro finished successfully." << endl;
  cout << "Output file is "    << outFile << endl;
  cout << "Parameter file is " << parFile << endl;
  cout << "Real time " << rtime << " s, CPU time " << ctime << " s" << endl;
  cout << endl;
  // ------------------------------------------------------------------------
  cout << " Test passed" << endl;
  cout << " All ok " << endl;
  //exit(0);
}