CMS 3D CMS Logo

/data/refman/pasoursint/CMSSW_4_4_5_patch3/src/CalibTracker/SiStripQuality/src/SiStripHotStripAlgorithmFromClusterOccupancy.cc

Go to the documentation of this file.
00001 #include "CalibTracker/SiStripQuality/interface/SiStripHotStripAlgorithmFromClusterOccupancy.h"
00002 
00003 
00004 
00005 
00006 SiStripHotStripAlgorithmFromClusterOccupancy::SiStripHotStripAlgorithmFromClusterOccupancy(const edm::ParameterSet& iConfig):
00007     prob_(1.E-7),
00008     MinNumEntries_(0),
00009     MinNumEntriesPerStrip_(0),
00010     Nevents_(0),
00011     occupancy_(0),
00012     OutFileName_("Occupancy.root"),
00013     UseInputDB_(iConfig.getUntrackedParameter<bool>("UseInputDB",false))
00014   {  
00015     minNevents_=Nevents_*occupancy_;
00016   }
00017 
00018 
00019 SiStripHotStripAlgorithmFromClusterOccupancy::~SiStripHotStripAlgorithmFromClusterOccupancy(){
00020   LogTrace("SiStripHotStripAlgorithmFromClusterOccupancy")<<"[SiStripHotStripAlgorithmFromClusterOccupancy::~SiStripHotStripAlgorithmFromClusterOccupancy] "<<std::endl;
00021 }
00022 
00023 void SiStripHotStripAlgorithmFromClusterOccupancy::extractBadStrips(SiStripQuality* OutSiStripQuality,HistoMap& DM,edm::ESHandle<SiStripQuality>& InSiStripQuality){
00024 
00025   LogTrace("SiStripHotStripAlgorithmFromClusterOccupancy")<<"[SiStripHotStripAlgorithmFromClusterOccupancy::extractBadStrips] "<<std::endl;
00026 
00027 
00028   
00029   if (WriteOutputFile_==true){
00030   f = new TFile(OutFileName_.c_str(),"RECREATE");
00031   f->cd();
00032 
00033   striptree = new TTree("stripOccupancy","tree");
00034 
00035   striptree->Branch("DetRawId",             &detrawid,          "DetRawId/I");
00036   striptree->Branch("SubDetId",             &subdetid,          "SubDetId/I");
00037   striptree->Branch("Layer_Ring",           &layer_ring,        "Layer_Ring/I");
00038   striptree->Branch("Disc",                 &disc,              "Disc/I");
00039   striptree->Branch("IsBack",               &isback,            "IsBack/I");
00040   striptree->Branch("IsExternalString",     &isexternalstring,  "IsExternalString/I");
00041   striptree->Branch("IsZMinusSide",         &iszminusside,      "IsZMinusSide/I");
00042   striptree->Branch("RodStringPetal",       &rodstringpetal,    "RodStringPetal/I");
00043   striptree->Branch("IsStereo",             &isstereo,          "IsStereo/I");
00044   striptree->Branch("ModulePosition",       &module_position,   "ModulePosition/I");
00045   striptree->Branch("NumberOfStrips",       &number_strips,     "NumberOfStrips/I");
00046   striptree->Branch("StripNumber",          &strip_number,      "StripNumber/I");
00047   striptree->Branch("APVChannel",           &apv_channel,       "APVChannel/I");
00048   striptree->Branch("StripGlobalPositionX", &global_position_x, "StripGlobalPositionX/F");
00049   striptree->Branch("StripGlobalPositionY", &global_position_y, "StripGlobalPositionY/F");
00050   striptree->Branch("StripGlobalPositionZ", &global_position_z, "StripGlobalPositionZ/F");
00051   striptree->Branch("IsHot",                &isHot,             "IsHot/I");
00052   striptree->Branch("HotStripsPerAPV",      &hotStripsPerAPV,   "HotStripsPerAPV/I");
00053   striptree->Branch("HotStripsPerModule",   &hotStripsPerModule,"HotStripsPerModule/I");
00054   striptree->Branch("StripOccupancy",       &stripOccupancy,    "StripOccupancy/D");
00055   striptree->Branch("StripHits",            &stripHits,         "StripHits/I");
00056   striptree->Branch("PoissonProb",          &poissonProb,       "PoissonProb/D");
00057   }
00058 
00059   
00060   HistoMap::iterator it=DM.begin();
00061   HistoMap::iterator itEnd=DM.end();
00062   std::vector<unsigned int> badStripList;
00063   uint32_t detid;
00064   for (;it!=itEnd;++it){
00065     pHisto phisto;
00066     detid=it->first;
00067 
00068     DetId detectorId=DetId(detid);
00069     phisto._SubdetId=detectorId.subdetId();
00070     
00071     if (edm::isDebugEnabled())
00072       LogTrace("SiStripHotStrip") << "Analyzing detid " << detid<< std::endl;
00073     
00074     int numberAPVs = (int)(it->second.get())->GetNbinsX()/128;
00075 
00076     // Set the values for the tree:
00077 
00078     detrawid = detid;
00079     subdetid = detectorId.subdetId();
00080     number_strips = (int)(it->second.get())->GetNbinsX();
00081     if (SiStripDetId(detrawid).stereo() !=0 ) isstereo = 1; // It's a stereo module
00082     else                                      isstereo = 0; // It's an rphi module
00083     switch (detectorId.subdetId())
00084       {
00085       case StripSubdetector::TIB :
00086         layer_ring = TIBDetId(detrawid).layer();
00087         disc       = -1;
00088         isback     = -1;
00089         if (TIBDetId(detrawid).isExternalString()) isexternalstring = 1;
00090         else                                       isexternalstring = 0;
00091         if (TIBDetId(detrawid).isZMinusSide()) iszminusside = 1;
00092         else                                   iszminusside = 0;
00093         rodstringpetal  = TIBDetId(detrawid).stringNumber();
00094         module_position = TIBDetId(detrawid).moduleNumber();
00095         break;
00096 
00097       case StripSubdetector::TID :
00098         layer_ring = TIDDetId(detrawid).ring();
00099         disc       = TIDDetId(detrawid).wheel();
00100         if (TIDDetId(detrawid).isBackRing()) isback = 1;
00101         else                                 isback = 0;
00102         if (TIDDetId(detrawid).isZMinusSide()) iszminusside = 1;
00103         else                                   iszminusside = 0;
00104         isexternalstring = -1;
00105         rodstringpetal   = -1;
00106         module_position  = TIDDetId(detrawid).moduleNumber();
00107         break;
00108 
00109       case StripSubdetector::TOB :
00110         layer_ring = TOBDetId(detrawid).layer();
00111         disc       = -1;
00112         isback     = -1;
00113         if (TOBDetId(detrawid).isZMinusSide()) iszminusside = 1;
00114         else                                   iszminusside = 0;
00115         isexternalstring = -1;
00116         rodstringpetal   = TOBDetId(detrawid).rodNumber();
00117         module_position  = TOBDetId(detrawid).moduleNumber();
00118         break;
00119 
00120       case StripSubdetector::TEC :
00121         layer_ring = TECDetId(detrawid).ring();
00122         disc       = TECDetId(detrawid).wheel();
00123         if (TECDetId(detrawid).isBackPetal()) isback = 1;
00124         else                                  isback = 0;
00125         if (TECDetId(detrawid).isZMinusSide()) iszminusside = 1;
00126         else                                   iszminusside = 0;
00127         isexternalstring = -1;
00128         rodstringpetal   = TECDetId(detrawid).petalNumber();
00129         module_position  = TECDetId(detrawid).moduleNumber();
00130         break;
00131 
00132       default :
00133         std::cout << "### Detector does not belong to TIB, TID, TOB or TEC !? ###" << std::endl;
00134         std::cout << "### DetRawId: " << detrawid << " ###" << std::endl;
00135       }
00136 
00137     // End: Set the values for the tree.
00138 
00139 
00140     pQuality=OutSiStripQuality;
00141     badStripList.clear();
00142 
00143     for (int i=0; i<768; i++){
00144       ishot[i]               = 0;
00145       stripoccupancy[i]      = 0;
00146       striphits[i]           = 0;
00147       poissonprob[i]         = 0;
00148       hotstripsperapv[i/128] = 0;
00149         }
00150 
00151     hotstripspermodule = 0;
00152 
00153     for (int apv=0; apv<numberAPVs; apv++){
00154       if(UseInputDB_){
00155         if(InSiStripQuality->IsApvBad(detid,apv) ){
00156           if(edm::isDebugEnabled())
00157             LogTrace("SiStripHotStrip")<<"(Module and Apv number) "<<detid<<" , "<<apv<<" excluded by input ESetup."<<std::endl;
00158           continue;//if the apv is already flagged as bad, continue.
00159         }
00160         else{
00161           if(edm::isDebugEnabled())
00162             LogTrace("SiStripHotStrip")<<"(Module and Apv number) "<<detid<<" , "<<apv<<" good by input ESetup."<<std::endl;
00163         }
00164       }
00165 
00166       phisto._th1f = new TH1F("tmp","tmp",128,0.5,128.5);
00167       int NumberEntriesPerAPV=0;
00168       
00169       for (int strip=0; strip<128; strip++){
00170         phisto._th1f->SetBinContent(strip+1,(it->second.get())->GetBinContent((apv*128)+strip+1));
00171         NumberEntriesPerAPV += (int)(it->second.get())->GetBinContent((apv*128)+strip+1);
00172       }
00173 
00174       phisto._th1f->SetEntries(NumberEntriesPerAPV);
00175       phisto._NEntries=(int)phisto._th1f->GetEntries();
00176 
00177       LogTrace("SiStripHotStrip") << "Number of clusters in APV " << apv << ": " << NumberEntriesPerAPV << std::endl;
00178 
00179       iterativeSearch(phisto,badStripList,apv);
00180 
00181       delete phisto._th1f;
00182     }
00183 
00184     const StripGeomDetUnit*  theStripDet = dynamic_cast<const StripGeomDetUnit*>( (TkGeom->idToDet(detectorId)) );
00185     const StripTopology* theStripTopol   = dynamic_cast<const StripTopology*>( &(theStripDet->specificTopology()) );  
00186 
00187     for (int strip=0; strip<number_strips; strip++)
00188       {
00189         strip_number   = strip+1;
00190         apv_channel    = (strip%128)+1;
00191         isHot          = ishot[strip];
00192         stripOccupancy = stripoccupancy[strip];
00193         stripHits      = striphits[strip];
00194         poissonProb    = poissonprob[strip];
00195 
00196         hotStripsPerModule = hotstripspermodule;
00197         hotStripsPerAPV    = hotstripsperapv[strip/128];
00198 
00199         LocalPoint  pos_strip_local  = theStripTopol->localPosition(strip);
00200         GlobalPoint pos_strip_global = (TkGeom->idToDet(detectorId))->surface().toGlobal(pos_strip_local);
00201 
00202         global_position_x = pos_strip_global.x();
00203         global_position_y = pos_strip_global.y();
00204         global_position_z = pos_strip_global.z();
00205 
00206         if (WriteOutputFile_==true) striptree->Fill();
00207       }
00208 
00209     if (badStripList.begin()==badStripList.end())
00210       continue;
00211 
00212     OutSiStripQuality->compact(detid,badStripList);
00213 
00214     SiStripQuality::Range range(badStripList.begin(),badStripList.end());
00215     if ( ! OutSiStripQuality->put(detid,range) )
00216       edm::LogError("SiStripHotStrip")<<"[SiStripHotStripAlgorithmFromClusterOccupancy::extractBadStrips] detid already exists"<<std::endl;
00217   }
00218   OutSiStripQuality->fillBadComponents();
00219 
00220   if (WriteOutputFile_==true){
00221   f->cd();
00222   striptree->Write();
00223   f->Close();
00224   }
00225 
00226   LogTrace("SiStripHotStrip") << ss.str() << std::endl;
00227 }
00228 
00229   
00230 void SiStripHotStripAlgorithmFromClusterOccupancy::iterativeSearch(pHisto& histo,std::vector<unsigned int>& vect, int apv){
00231   if (!histo._NEntries || histo._NEntries <=MinNumEntries_ || histo._NEntries <= minNevents_)
00232     return;
00233   
00234   size_t startingSize=vect.size();
00235   long double diff=1.-prob_; 
00236   
00237   int Nbins     = histo._th1f->GetNbinsX();
00238   int ibinStart = 1; 
00239   int ibinStop  = Nbins+1; 
00240   int MaxEntry  = (int)histo._th1f->GetMaximum();
00241 
00242   std::vector<long double> vPoissonProbs(MaxEntry+1,0);
00243   long double meanVal=1.*histo._NEntries/(1.*Nbins-histo._NEmptyBins); 
00244   evaluatePoissonian(vPoissonProbs,meanVal);
00245 
00246   for (Int_t i=ibinStart; i<ibinStop; ++i){
00247     unsigned int entries= (unsigned int)histo._th1f->GetBinContent(i);
00248 
00249     if (ishot[(apv*128)+i-1]==0){
00250       stripoccupancy[(apv*128)+i-1] = entries/(double) Nevents_;
00251       striphits[(apv*128)+i-1]      = entries;
00252       poissonprob[(apv*128)+i-1]    = 1-vPoissonProbs[entries];
00253     }
00254 
00255     if (entries<=MinNumEntriesPerStrip_ || entries <= minNevents_)
00256       continue;
00257 
00258     if(diff<vPoissonProbs[entries]){
00259       ishot[(apv*128)+i-1] = 1;
00260       hotstripspermodule++;
00261       hotstripsperapv[apv]++;
00262       histo._th1f->SetBinContent(i,0.);
00263       histo._NEntries-=entries;
00264       histo._NEmptyBins++;
00265       if (edm::isDebugEnabled())
00266         LogTrace("SiStripHotStrip")<< " rejecting strip " << (apv*128)+i-1 << " value " << entries << " diff  " << diff << " prob " << vPoissonProbs[entries]<< std::endl;
00267       vect.push_back(pQuality->encode((apv*128)+i-1,1,0));
00268     }
00269 
00270   }
00271   if (edm::isDebugEnabled())
00272     LogTrace("SiStripHotStrip") << " [SiStripHotStripAlgorithmFromClusterOccupancy::iterativeSearch] Nbins="<< Nbins << " MaxEntry="<<MaxEntry << " meanVal=" << meanVal << " NEmptyBins="<<histo._NEmptyBins<< " NEntries=" << histo._NEntries << " thEntries " << histo._th1f->GetEntries()<< " startingSize " << startingSize << " vector.size " << vect.size() << std::endl;
00273 
00274   if (vect.size()!=startingSize)
00275     iterativeSearch(histo,vect,apv);
00276 }
00277 
00278 void SiStripHotStripAlgorithmFromClusterOccupancy::evaluatePoissonian(std::vector<long double>& vPoissonProbs, long double& meanVal){
00279   for(size_t i=0;i<vPoissonProbs.size();++i){
00280     vPoissonProbs[i]= (i==0)?TMath::Poisson(i,meanVal):vPoissonProbs[i-1]+TMath::Poisson(i,meanVal);
00281   }
00282 }
00283 
00284 void SiStripHotStripAlgorithmFromClusterOccupancy::setNumberOfEvents(double Nevents){
00285   Nevents_=Nevents;
00286   minNevents_=occupancy_*Nevents_; 
00287   if (edm::isDebugEnabled())                                                                                                                                                                          
00288     LogTrace("SiStripHotStrip")<<" [SiStripHotStripAlgorithmFromClusterOccupancy::setNumberOfEvents] minNumber of Events per strip used to consider a strip bad" << minNevents_ << " for occupancy " << occupancy_ << std::endl;
00289 }