////////////////////////////////
run_offline3_sim(Int_t nEvents=2,  Float_t mom = 15,  UInt_t seed = 1)
{


  Int_t mode = 0; //for DPM...
  //Mode 	= 0. - No elastic scattering, only inelastic


  UInt_t codeseed=12345678+seed; 

  gRandom->SetSeed(codeseed);

  TStopwatch timer;
  timer.Start();
  gDebug=0;
  gROOT->LoadMacro("$VMCWORKDIR/gconfig/rootlogon.C");
  rootlogon();
  
  
  TString identifier;    
  identifier = Form("data_%d",seed);
  TString base=identifier.Data();
  cout<< base <<endl;

  TString parFile  = base+"_par.root";
  TString outFile  = base+"_sim.root";



  
  FairRunSim *fRun = new FairRunSim();

  // set the MC version used
  // ------------------------

  //fRun->SetName("TGeant3");
  fRun->SetName("TGeant4");

  fRun->SetOutputFile(outFile.Data());
  fRun->SetWriteRunInfoFile(kFALSE);

  // Set the parameters
  //-------------------------------
  TString allDigiFile = gSystem->Getenv("VMCWORKDIR");
  allDigiFile += "/macro/params/all.par";
 
 
  FairRuntimeDb* rtdb = fRun->GetRuntimeDb();
  FairParAsciiFileIo* parIo1 = new FairParAsciiFileIo();
  parIo1->open(allDigiFile.Data(),"in");
  rtdb->setFirstInput(parIo1);        
  Bool_t kParameterMerged=kTRUE;
	
  FairParRootFileIo* output=new FairParRootFileIo(kParameterMerged);
  output->open(parFile);
  rtdb->setOutput(output);
  
  // Set Material file Name
  //-----------------------
  fRun->SetMaterials("media_pnd.geo");

  // Create and add detectors
  //-------------------------
  FairModule *Cave= new PndCave("CAVE");
  Cave->SetGeometryFileName("pndcave.geo");
  fRun->AddModule(Cave); 

  FairModule *Magnet= new PndMagnet("MAGNET");
  //Magnet->SetGeometryFileName("FullSolenoid_V842.root");
  Magnet->SetGeometryFileName("FullSuperconductingSolenoid_v831.root");
  fRun->AddModule(Magnet);

  FairModule *Dipole= new PndMagnet("MAGNET");
  Dipole->SetGeometryFileName("dipole.geo");
  fRun->AddModule(Dipole);

  FairModule *Pipe= new PndPipe("PIPE");
  Pipe->SetGeometryFileName("beampipe_201112.root");
  fRun->AddModule(Pipe);

  FairDetector *Stt= new PndStt("STT", kTRUE);
  Stt->SetGeometryFileName("straws_skewed_blocks_35cm_pipe.geo");
  fRun->AddModule(Stt);

  FairDetector *Mvd = new PndMvdDetector("MVD", kTRUE);
  Mvd->SetGeometryFileName("Mvd-2.1_FullVersion.root");
  fRun->AddModule(Mvd);

  PndEmc *Emc = new PndEmc("EMC",kTRUE);
  Emc->SetGeometryVersion(1); 
  Emc->SetStorageOfData(kFALSE);
  fRun->AddModule(Emc);

  FairDetector *SciT = new PndSciT("SCIT",kTRUE);
  SciT->SetGeometryFileName("barrel-SciTil_07022013.root");
  fRun->AddModule(SciT);

  PndMdt *Muo = new PndMdt("MDT",kTRUE);
  Muo->SetBarrel("fast");
  Muo->SetEndcap("fast");
  Muo->SetMuonFilter("fast");
  Muo->SetForward("fast");//check!!! need this...
  Muo->SetMdtMagnet(kTRUE);
  Muo->SetMdtMFIron(kTRUE);
  fRun->AddModule(Muo);

  FairDetector *Gem = new PndGemDetector("GEM", kTRUE);
  Gem->SetGeometryFileName("gem_3Stations.root");
  fRun->AddModule(Gem);

  PndDsk* Dsk = new PndDsk("DSK", kTRUE);
  //Dsk->SetGeometryFileName("dsk.root");//check!! don't need at all
  Dsk->SetStoreCerenkovs(kFALSE);
  Dsk->SetStoreTrackPoints(kFALSE);
  fRun->AddModule(Dsk);

  PndDrc *Drc = new PndDrc("DIRC", kTRUE);
  Drc->SetGeometryFileName("dirc_l0_p0_updated.root");
  Drc->SetRunCherenkov(kFALSE); // for fast sim Cherenkov -> kFALSE
  fRun->AddModule(Drc);
 
  FairDetector *Fts= new PndFts("FTS", kTRUE);
  Fts->SetGeometryFileName("fts.geo");
  fRun->AddModule(Fts);

  FairDetector *FTof = new PndFtof("FTOF",kTRUE);
  FTof->SetGeometryFileName("ftofwall.root");
  fRun->AddModule(FTof);

  FairDetector *Rich= new PndRich("RICH",kFALSE);
  Rich->SetGeometryFileName("rich_v2.geo");
  fRun->AddModule(Rich);

 
  // Create and Set Event Generator
  //-------------------------------

  FairPrimaryGenerator* primGen = new FairPrimaryGenerator();
  primGen->SetEventMeanTime(10);
  fRun->SetGenerator(primGen);

      PndDpmDirect *dpmGen = new PndDpmDirect(mom, mode, gRandom->GetSeed());//mode:1=inelastic+elastic
      primGen->AddGenerator(dpmGen);

  // Create and Set Magnetic Field
  //-------------------------------
  fRun->SetBeamMom(mom);
  PndMultiField *fField= new PndMultiField("FULL");
  fRun->SetField(fField);

  // EMC Hit producer
  //-------------------------------
  PndEmcHitProducer* emcHitProd = new PndEmcHitProducer();
  fRun->AddTask(emcHitProd);
  
  //fRun->SetStoreTraj(kTRUE); // Speichert die Trajektorien der simulierten Teilchen

  /**Initialize the session*/
  fRun->Init();

  // Transport nEvents
  // -----------------
  fRun->Run(nEvents);
  rtdb->saveOutput();

  timer.Stop();

  Double_t rtime = timer.RealTime();
  Double_t ctime = timer.CpuTime();
  printf("RealTime=%f seconds, CpuTime=%f seconds\n",rtime,ctime);

}