C++ TStopwatch::Stop方法代码示例

Float_t read_tree(const char *filename = "data.root", Double_t bytes = 10000000)
{
        printf("Reading events from a root tree \n");
        
        TFile *filein = new TFile(filename,"READ");     
        if ( filein->IsZombie() ) {
                printf("Cannot open file \n");
                return 0.0;
        }
        
        Int_t nbgamma; Int_t e[1000]; // up to 1000 energies ..should be ok 
        
        TTree *treein; 
        treein = (TTree *)filein->Get("TEST");
        if ( treein == NULL ) return 0;
        else {
                treein->SetBranchAddress("mult",&nbgamma); 
                treein->SetBranchAddress("e",&e);
        }

        // write events and compute the needed time
        TStopwatch watch; 
        watch.Start();
        treein->Draw("e","","goff");
        watch.Stop();

        cout << "  --> Reading rate " << bytes / (1024*1024*watch.RealTime()) << " MB/s"<< endl ;
        
        filein->Close(); delete filein; return bytes / (1024*1024*watch.RealTime()) ;
}

void write(int n) {

   TRandom R;
   TStopwatch timer;

   TFile f1("mathcoreVectorIO_F.root","RECREATE");

   // create tree
   TTree t1("t1","Tree with new Float LorentzVector");

   XYZTVectorF *v1 = new XYZTVectorF();
   t1.Branch("LV branch","ROOT::Math::XYZTVectorF",&v1);

   timer.Start();
   for (int i = 0; i < n; ++i) {
      double Px = R.Gaus(0,10);
      double Py = R.Gaus(0,10);
      double Pz = R.Gaus(0,10);
      double E  = R.Gaus(100,10);
      v1->SetCoordinates(Px,Py,Pz,E);
      t1.Fill();
   }

   f1.Write();
   timer.Stop();
   std::cout << " Time for new Float Vector " << timer.RealTime() << "  " << timer.CpuTime() << std::endl;
   t1.Print();
}

void rec() {
	//  AliLog::SetGlobalDebugLevel(10);
	AliCDBManager * man = AliCDBManager::Instance();
	man->SetDefaultStorage("alien://Folder=/alice/simulation/2008/v4-10-Release/Residual/");
	man->SetSpecificStorage("EMCAL/*","local://DB");
	
	AliReconstruction reco;
	AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., AliMagFMaps::k5kG);
	AliTracker::SetFieldMap(field,kTRUE);
	reco.SetUniformFieldTracking(kFALSE);
	reco.SetWriteESDfriend();
	reco.SetWriteAlignmentData();
  
	AliTPCRecoParam * tpcRecoParam = AliTPCRecoParam::GetLowFluxParam();
	AliTPCReconstructor::SetRecoParam(tpcRecoParam);
	AliTPCReconstructor::SetStreamLevel(0);
	reco.SetRunReconstruction("ITS TPC TRD TOF HMPID PHOS EMCAL MUON T0 VZERO FMD PMD ZDC");
	//reco.SetInput("raw.root") ;
	//AliPHOSRecoParam* recEmc = new AliPHOSRecoParamEmc();
//	recEmc->SetSubtractPedestals(kFALSE);
//	AliPHOSReconstructor::SetRecoParamEmc(recEmc);  
	reco.SetRunQA(kFALSE) ; 

	TStopwatch timer;
	timer.Start();
	reco.Run();
	timer.Stop();
	timer.Print();
}

void run(int nEvents = 100000) {

    TChain* fChain = new TChain("T");

    ifstream sourceFiles("input.txt");
    char line[128];
    int  count = 0;

    while (sourceFiles >> line) {
        fChain->Add(line);      
        ++count;
    }

    cout << count << " files added!" << endl;
    sourceFiles.close();

    TStopwatch timer;
    timer.Start();

    fChain->Process("adcAnalyzer.C+", "", 8*nEvents, 0);

    timer.Stop();

    cout << "\n\nDone!" << endl;
    cout << "CPU Time : " << timer.CpuTime() << " s (total), " << timer.CpuTime()/nEvents << " s (per event)" << endl;
    cout << "RealTime : " << timer.RealTime() << " s (total), " << timer.RealTime()/nEvents << " s (per event)" << endl;
    cout << "\n";
}

void sim(Int_t nev=100) {
  if (gSystem->Getenv("EVENT"))
   nev = atoi(gSystem->Getenv("EVENT")) ;   
  
  AliSimulation simulator;
  simulator.SetMakeSDigits("TRD TOF PHOS HMPID EMCAL MUON FMD ZDC PMD T0 VZERO");
  simulator.SetMakeDigitsFromHits("ITS TPC");
  //  simulator.SetWriteRawData("ALL","raw.root",kTRUE);

  simulator.SetDefaultStorage("alien://Folder=/alice/simulation/2008/v4-15-Release/Ideal");
  //  simulator.SetDefaultStorage("local://$ALICE_ROOT/OCDB");
  simulator.SetSpecificStorage("GRP/GRP/Data",
			       Form("local://%s",gSystem->pwd()));
  
  simulator.SetRunQA(":") ; 
  
//  simulator.SetQARefDefaultStorage("local://$ALICE_ROOT/QAref") ;
//
//  for (Int_t det = 0 ; det < AliQA::kNDET ; det++) {
//    simulator.SetQACycles(det, nev+1) ;
//  }
  
  TStopwatch timer;
  timer.Start();
  simulator.Run(nev);
  timer.Stop();
  timer.Print();
}

void ana_Main_MC_arg_winscan(string which_MC_to_use, string MCFileLocation) {

	gSystem->Load("libSusyEvent.so");

	// Look ../jec/JetMETObjects/README
	gSystem->Load("../jec/lib/libJetMETObjects.so");

	// Printing utility for ntuple variables
	gROOT->LoadMacro("SusyEventPrinter.cc+");

	// Main analysis code
	gROOT->LoadMacro("SusyMainAna_MC_arg_windowscan.cc+");

	// chain of inputs
	TChain* chain = new TChain("susyTree");

	//////////////// MC files /////////////////
	//MCpoint* thisMCpoint = setupMCpoint(which_MC_to_use);
	chain->Add(MCFileLocation.data());
	//chain->Add(thisMCpoint->filepath.c_str());


	//chain->Add("../susyEvents_AB_1M_ho200_v2.root");
	//chain->Add("../susyEvents_newNatural.root"); //last used!!
	//chain->Add("/eos/uscms/store/user/abarker/MC/newNat350_225/MC_AB_2500k_NEWnaturalHiggsinoNLSPout_mst_350_M3_5025_mu_225.root");//same thing as ../susyEvents_newNatural.root
	//chain->Add("/eos/uscms/store/user/abarker/MC/st_250_ho_150/MC_AB_2500k_st_250_ho_150.root");
	//chain->Add("/eos/uscms/store/user/abarker/MC/st_250_ho_200/MC_AB_2500k_st_250_ho_200.root");
	//chain->Add("/eos/uscms/store/user/abarker/MC/st_350_ho_200/MC_AB_2500k_mst_350_mu_200.root");
	//chain->Add("/eos/uscms/store/user/abarker/MC/ho_140/MC_AB_2500k_ho_140.root");
	//chain->Add("/eos/uscms/store/user/abarker/MC/ho_200/MC_AB_2500k_ho_200.root");
	//chain->Add("../susyEvents_newNatural.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_NEWnaturalHiggsinoNLSPout_mst_350_M3_5025_mu_225.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_st_250_ho_150.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_st_250_ho_200.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_mst_350_mu_200.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_ho_140.root");
	//chain->Add("dcache:/pnfs/cms/WAX/resilient/abarker/MC/MC_AB_2500k_ho_200.root");


	SusyMainAna_MC_arg_windowscan* sea = new SusyMainAna_MC_arg_windowscan(chain);

	// configuration parameters
	// any values given here will replace the default values
	sea->SetDataset("ttbar_relval");        // dataset name
	sea->SetPrintInterval(1e4);             // print frequency
	sea->SetPrintLevel(0);                  // print level for event contents
	sea->SetUseTrigger(false);
	sea->SetFilter(false);                  // filter events passing final cuts
	sea->SetProcessNEvents(-1);             // number of events to be processed

	TStopwatch ts;
	ts.Start();

	sea->Loop(which_MC_to_use);

	ts.Stop();
	std::cout << "RealTime : " << ts.RealTime()/60.0 << " minutes" << std::endl;
	std::cout << "CPUTime  : " << ts.CpuTime()/60.0 << " minutes" << std::endl;

}

void read() {

   TRandom R;
   TStopwatch timer;

   TFile f1("mathcoreVectorIO_F.root");

   // create tree
   TTree *t1 = (TTree*)f1.Get("t1");

   XYZTVectorF *v1 = 0;
   t1->SetBranchAddress("LV branch",&v1);

   timer.Start();
   int n = (int) t1->GetEntries();
   std::cout << " Tree Entries " << n << std::endl;
   double etot=0;
   for (int i = 0; i < n; ++i) {
      t1->GetEntry(i);
      etot += v1->E();
   }

   timer.Stop();
   std::cout << " Time for new Float Vector " << timer.RealTime() << "  " << timer.CpuTime() << std::endl;
   std::cout << " E average" << n<< "  " << etot << "  " << etot/double(n) << endl;
}

Float_t write_tree(const char *filename = "data.root", Int_t nbevents = 10000000, Int_t compression = 0)
{
        printf("Writing %d events in a root tree with compression level %d \n",nbevents,compression);
        
        TFile *fileout = new TFile(filename,"recreate");        
        if ( fileout->IsZombie() ) {
                printf("Cannot open file \n");
                return 0.0;
        }
        fileout->SetCompressionLevel(compression);
        
        Double_t wbytes = 0.0;
        Int_t nbgamma; Int_t e[1000]; 
        for (Int_t i = 1; i < 1000; i++) e[i] = 200*i;
        
        TTree *treeout; 
        treeout = new TTree("TEST","TEST");
        treeout->Branch("mult",&nbgamma,"nbgamma/I"); treeout->Branch("e",e,"e[nbgamma]/I");
                
        // write events and compute the needed time
        TStopwatch watch; 
        watch.Start();
        for (int i = 0; i < nbevents; i++ ) {
                nbgamma = 2 + i % 5; wbytes += 4.0;  wbytes += nbgamma * 4.0;
                treeout->Fill();
        }
        watch.Stop();
        
        printf("  --> Writing rate %f MB/s [%f] \n",wbytes/(1024*1024*watch.RealTime()),wbytes/(1024*1024));
        
        fileout->Close(); delete fileout;
        
        return wbytes;
}

void run(TString runNumber)
{
    TStopwatch timer;
    timer.Start();

    TString dirIn1 = "/Volumes/Data/kresan/s438/data/";
    TString dirIn2 = "/Volumes/Data/kresan/s438/tcal/";
    TString dirOut = "/Volumes/Data/kresan/s438/digi/";
    TString tdiffParName = "tdiff_" + runNumber + ".dat";
    TString inputFileName1 = dirIn2 + runNumber + "_tcal.root";             // name of input file
    TString parFileName    = dirIn1 + "params_" + runNumber + "_raw.root";  // name of parameter file
    TString outputFileName = dirOut + runNumber + "_digi.root";            // name of output file

    // Create analysis run -------------------------------------------------------
    FairRunAna* run = new FairRunAna();
    run->SetInputFile(inputFileName1.Data());
    run->SetOutputFile(outputFileName.Data());
    // ---------------------------------------------------------------------------

    // ----- Runtime DataBase info -----------------------------------------------
    FairRuntimeDb* rtdb = run->GetRuntimeDb();
    FairParRootFileIo* parIo1 = new FairParRootFileIo();
    parIo1->open(parFileName);
    rtdb->setFirstInput(parIo1);
    rtdb->setOutput(parIo1);
    rtdb->saveOutput();
    // ---------------------------------------------------------------------------

    // Tdiff calibration ---------------------------------------------------------
    R3BLandTdiff* landTdiff = new R3BLandTdiff("LandTdiff", 1);
    landTdiff->SetTdiffParName(tdiffParName.Data());
    run->AddTask(landTdiff);
    // ---------------------------------------------------------------------------

    // Analysis ------------------------------------------------------------------
    R3BLandAna* landAna = new R3BLandAna("LandAna", 1);
    landAna->SetNofBars(100);
    run->AddTask(landAna);
    // ---------------------------------------------------------------------------
    
    // Initialize ----------------------------------------------------------------
    run->Init();
    FairLogger::GetLogger()->SetLogScreenLevel("INFO");
    // ---------------------------------------------------------------------------

    // Run -----------------------------------------------------------------------
    run->Run();
    // ---------------------------------------------------------------------------

    timer.Stop();
    Double_t rtime = timer.RealTime();
    Double_t ctime = timer.CpuTime();
    cout << endl << endl;
    cout << "Macro finished succesfully." << endl;
    cout << "Output file is " << outputFileName << endl;
    cout << "Parameter file is " << parFileName << endl;
    cout << "Real time " << rtime << " s, CPU time " << ctime << "s" << endl << endl;
}

void sim(Int_t nev=50) {

  if (gSystem->Getenv("SIM_EVENTS"))
    nev = atoi(gSystem->Getenv("SIM_EVENTS"));

  printf("GENERATE << %d >> events \n",nev);

  gROOT->LoadMacro("IpPion.C++") ;


  AliSimulation simulator;
  simulator.SetMakeSDigits("PHOS");
  simulator.SetMakeDigits("PHOS");
//
// Ideal OCDB
//  simulator.SetDefaultStorage("local://$ALICE_ROOT/OCDB");
  simulator.SetDefaultStorage("local://./OCDB");
//  simulator.SetSpecificStorage("GRP/GRP/Data",
//                               Form("local://%s",gSystem->pwd()));

//  simulator.SetDefaultStorage("alien://Folder=/alice/simulation/2008/v4-15-Release/Ideal/");

 //simulator.SetSpecificStorage("GRP/Calib/MeanVertexSPD", "alien://folder=/alice/data/2010/OCDB");

  //PHOS bad map from RAW OCDB
  simulator.SetSpecificStorage("PHOS/*/*/","local://./OCDB");
//  simulator.SetSpecificStorage("PHOS/Calib/EmcBadChannels/","local://./OCDB");
//  simulator.SetSpecificStorage("PHOS/Calib/EmcGainPedestals/","local://./OCDB");

  simulator.SetRunHLT("");
//

  simulator.SetSpecificStorage("GRP/GRP/Data", "alien://Folder=/alice/data/2010/OCDB");

  AliPHOSSimParam *simParam =  AliPHOSSimParam::GetInstance() ;
  simParam->SetAPDNoise(0.000001) ;
  simParam->SetCellNonLineairyA(0.001) ;
//  simParam->SetCellNonLineairyA(0.1) ; //Default
  simParam->SetCellNonLineairyB(0.2) ;
//  simParam->SetCellNonLineairyC(0.989) ; //Jan4
//  simParam->SetCellNonLineairyC(0.995) ; //Jan5 - 2GeV
  simParam->SetCellNonLineairyC(1.031) ; //no NL

// Vertex and Mag.field from OCDB

//  simulator.UseVertexFromCDB();
  simulator.UseMagFieldFromGRP();
  simulator.SetRunQA(":") ;

//
// The rest

  TStopwatch timer;
  timer.Start();
  simulator.Run(nev);
  timer.Stop();
  timer.Print();
}

void  testIntegPerf(double x1, double x2, int n = 100000){


   std::cout << "\n\n***************************************************************\n";
   std::cout << "Test integration performances in interval [ " << x1 << " , " << x2 << " ]\n\n";

  TStopwatch timer;

  double dx = (x2-x1)/double(n);

  //ROOT::Math::Functor1D<ROOT::Math::IGenFunction> f1(& TMath::BreitWigner);
  ROOT::Math::WrappedFunction<> f1(func);

  timer.Start();
  ROOT::Math::Integrator ig(f1 );
  double s1 = 0.0;
  nc = 0;
  for (int i = 0; i < n; ++i) {
     double x = x1 + dx*i;
     s1+= ig.Integral(x1,x);
  }
  timer.Stop();
  std::cout << "Time using ROOT::Math::Integrator        :\t" << timer.RealTime() << std::endl;
  std::cout << "Number of function calls = " << nc/n << std::endl;
  int pr = std::cout.precision(18);  std::cout << s1 << std::endl;  std::cout.precision(pr);



  //TF1 *fBW = new TF1("fBW","TMath::BreitWigner(x)",x1, x2);  //  this is faster but cannot measure number of function calls
  TF1 *fBW = new TF1("fBW",func2,x1, x2,0);

  timer.Start();
  nc = 0;
  double s2 = 0;
  for (int i = 0; i < n; ++i) {
     double x = x1 + dx*i;
     s2+= fBW->Integral(x1,x );
  }
  timer.Stop();
  std::cout << "Time using TF1::Integral :\t\t\t" << timer.RealTime() << std::endl;
  std::cout << "Number of function calls = " << nc/n << std::endl;
  pr = std::cout.precision(18);  std::cout << s1 << std::endl;  std::cout.precision(pr);


}

// test using UNURAN string interface
void testStringAPI() {

   TH1D * h1 = new TH1D("h1G","gaussian distribution from Unuran",100,-10,10);
   TH1D * h2 = new TH1D("h2G","gaussian distribution from TRandom",100,-10,10);

   cout << "\nTest using UNURAN string API \n\n";


   TUnuran unr; 
   if (! unr.Init( "normal()", "method=arou") ) {
      cout << "Error initializing unuran" << endl;
      return;
   }

   int n = NGEN;
   TStopwatch w; 
   w.Start(); 

   for (int i = 0; i < n; ++i) {
       double x = unr.Sample(); 
       h1->Fill(  x ); 
   }

   w.Stop(); 
   cout << "Time using Unuran method " << unr.MethodName() << "\t=\t " << w.CpuTime() << endl;


   // use TRandom::Gaus
   w.Start();
   for (int i = 0; i < n; ++i) {
      double x = gRandom->Gaus(0,1); 
       h2->Fill(  x ); 
   }

   w.Stop(); 
   cout << "Time using TRandom::Gaus  \t=\t " << w.CpuTime() << endl;

   assert(c1 != 0);
   c1->cd(++izone);
   h1->Draw();
   c1->cd(++izone);
   h2->Draw();

}

void dmesondecaylength()
{


    //gStyle->SetOptStat("nemruoi");
    gStyle->SetTitleSize(.04,"S");
    gStyle->SetOptTitle(1);
    gStyle->SetTitleOffset(1.0,"X");
    gStyle->SetTitleOffset(.88,"Y");
    gStyle->SetTitleSize(.04,"X");
    gStyle->SetTitleSize(.04,"Y");
    gStyle->SetLabelSize(.035,"X");
    gStyle->SetLabelSize(.035,"Y");
    gStyle->SetHistLineWidth(2);
    gStyle->SetOptFit(1);
    gStyle->SetOptStat(0);
// -----   Timer   --------------------------------------------------------
    TStopwatch timer;
    timer.Start();
    // ------------------------------------------------------------------------
    double c= 3* std::pow(10.,8.);
    double mt= 1040*std::pow(10.,-15.); // mean decay time
    double mass= 1.869; // rest mass in GeV/c^2
//TCanvas* can = new TCanvas("can","Radiation Length for start detector",0,0,100,100);
    TCanvas *c1 = new TCanvas("c1", "c1",0,52,1191,692);
    TH1D* h = new TH1D("hist","D-meson, D-meson decay length",24,0,24);
    h->SetTitle("D^{+} meson decay length = c#tau#sqrt{(#gamma_{D^{+}}^{2}-1)};Momentum (GeV/c); Decay length (mm)");
    Int_t ci;   // for color index setting
    ci = TColor::GetColor("#000099");
    for (int p=1; p<=24; p++)
    {
        double E = p*p + mass*mass;
        E= std:: sqrt(E);

        double gamma = E/mass;
        double decaylength = c* std::sqrt(gamma*gamma -1)*mt*1000;
        std:: cout<<" Decay length=" <<decaylength<<std::endl;
        h->SetLineColor(ci);
        h->GetXaxis()->CenterTitle(true);
        h->GetYaxis()->CenterTitle(true);
        h->SetMarkerColor(2);
        h->SetMarkerStyle(20);
        h->SetBinContent(p,decaylength);
        h->Draw("E2-text");
    }
// -----  Finish   -------------------------------------------------------
    timer.Stop();
    Double_t rtime = timer.RealTime();
    Double_t ctime = timer.CpuTime();
    cout << endl << endl;
    cout << "Macro finished succesfully." << endl;
    cout << "Real time " << rtime << " s, CPU time " << ctime << " s" << endl;
    cout << endl;
    // ------------------------------------------------------------------------

}

void runTOFCalibTaskOnProof() {
	TStopwatch timer;
	timer.Start();
	
	printf("*** Open PROOF ***");

	gEnv->SetValue("XSec.GSI.DelegProxy","2");
	TProof::Open("alicecaf");
		
	gProof->UploadPackage("STEERBase.par");
	gProof->EnablePackage("STEERBase");
	gProof->UploadPackage("ESD.par");
	gProof->EnablePackage("ESD");
	gProof->UploadPackage("AOD.par");
	gProof->EnablePackage("AOD");
	gProof->UploadPackage("ANALYSIS.par");
	gProof->EnablePackage("ANALYSIS");
	gProof->UploadPackage("ANALYSISalice.par");
	gProof->EnablePackage("ANALYSISalice");
	
	gProof->Load("AliTOFArray.cxx++g");
	gProof->Load("AliTOFCalibTask.cxx++g");
	gROOT->LoadMacro("AddTaskTOFCalib.C");
	cout << "Loaded AddTaskTOFCalib macro "<< endl;
	
	gProof->ShowEnabledPackages();
	
	//ANALYSIS PART	
	//____________________________________________//
	// Make the analysis manager

	AliAnalysisManager *mgr = new AliAnalysisManager("TestManager");
	AliESDInputHandler* esdH = new AliESDInputHandler;
	
	esdH->SetInactiveBranches("FMD CaloCluster");
	mgr->SetInputEventHandler(esdH);  
	
	Bool_t domc = kFALSE;
	if (domc) {
		AliMCEventHandler *mcH = new AliMCEventHandler;
		mgr->SetMCtruthEventHandler(mcH);
	}

	//____________________________________________//
	// 1st TOFCalib task
	
	AliTOFCalibTask *taskTOFCalib = AddTaskTOFCalib();
	
	if (!mgr->InitAnalysis()) return;
	mgr->PrintStatus();
	mgr->StartAnalysis("proof","/COMMON/COMMON/LHC08c11_10TeV_0.5T",1000);
	
	timer.Stop();
	timer.Print();
}

void TestFitG(TGraph *gr, TF1*f, Int_t n){
  TStopwatch timer;
  printf("%s\n",f->GetTitle());
  timer.Start();
  for (Int_t i=0;i<n;i++){
    gr->Fit(f,"q");
  }
  timer.Stop();
  timer.Print(); 
  //f->Print();
}