STEER/STEER/AliMillePede2.h

   1 #ifndef ALIMILLEPEDE2_H
   2 #define ALIMILLEPEDE2_H
   3
   4 /**********************************************************************************************/
   5 /* General class for alignment with large number of degrees of freedom                        */
   6 /* Based on the original milliped2 by Volker Blobel                                           */
   7 /* http://www.desy.de/~blobel/mptalks.html                                                    */
   8 /*                                                                                            */
   9 /* Author: ruben.shahoyan@cern.ch                                                             */
  10 /*                                                                                            */
  11 /**********************************************************************************************/
  12
  13 #include <TObject.h>
  14 #include <TString.h>
  15 #include <TTree.h>
  16 #include "AliMinResSolve.h"
  17 #include "AliMillePedeRecord.h"
  18 class TFile;
  19 class AliMatrixSq;
  20 class AliSymMatrix;
  21 class AliRectMatrix;
  22 class AliMatrixSparse;
  23 class AliLog;
  24 class TStopwatch;
  25 class TArrayL;
  26 class TArrayF;
  27
  28
  29 class AliMillePede2: public TObject
  30 {
  31  public:
  32   //
  33   enum {kFailed,kInvert,kNoInversion};    // used global matrix solution methods
  34   enum {kFixParID=-1};                    // dummy id for fixed param
  35   //
  36   AliMillePede2();
  37   AliMillePede2(const AliMillePede2& src);
  38   virtual ~AliMillePede2();
  39   AliMillePede2& operator=(const AliMillePede2& )             {printf("Dummy\n"); return *this;}
  40   //
  41   Int_t                InitMille(int nGlo, int nLoc, Int_t lNStdDev=-1,double lResCut=-1., double lResCutInit=-1., const Int_t* regroup=0);
  42   //
  43   Int_t                GetNGloPar()                     const {return fNGloPar;}
  44   Int_t                GetNGloParIni()                  const {return fNGloParIni;}
  45   const Int_t*         GetRegrouping()                  const {return fkReGroup;}
  46   Int_t                GetNLocPar()                     const {return fNLocPar;}
  47   Long_t               GetNLocalEquations()             const {return fNLocEquations;}
  48   Int_t                GetCurrentIteration()            const {return fIter;}
  49   Int_t                GetNMaxIterations()              const {return fMaxIter;}
  50   Int_t                GetNStdDev()                     const {return fNStdDev;}
  51   Int_t                GetNGlobalConstraints()          const {return fNGloConstraints;}
  52   Int_t                GetNLagrangeConstraints()        const {return fNLagrangeConstraints;}
  53   Long_t               GetNLocalFits()                  const {return fNLocFits;}
  54   Long_t               GetNLocalFitsRejected()          const {return fNLocFitsRejected;}
  55   Int_t                GetNGlobalsFixed()               const {return fNGloFix;}
  56   Int_t                GetGlobalSolveStatus()           const {return fGloSolveStatus;}
  57   Float_t              GetChi2CutFactor()               const {return fChi2CutFactor;}
  58   Float_t              GetChi2CutRef()                  const {return fChi2CutRef;}
  59   Float_t              GetResCurInit()                  const {return fResCutInit;}
  60   Float_t              GetResCut()                      const {return fResCut;}
  61   Int_t                GetMinPntValid()                 const {return fMinPntValid;}
  62   Int_t                GetRGId(Int_t i)                 const {return fkReGroup ? (fkReGroup[i]<0 ? -1:fkReGroup[i]) : i;}
  63   Int_t                GetProcessedPoints(Int_t i)      const {int ir=GetRGId(i); return ir<=0 ? 0:fProcPnt[ir];}
  64   Int_t*               GetProcessedPoints()             const {return fProcPnt;}
  65   Int_t                GetParamGrID(Int_t i)            const {int ir=GetRGId(i); return ir<=0 ? 0:fParamGrID[ir];}
  66   //
  67   AliMatrixSq*         GetGlobalMatrix()                const {return fMatCGlo;}
  68   AliSymMatrix*        GetLocalMatrix()                 const {return fMatCLoc;}
  69   Double_t*            GetGlobals()                     const {return fVecBGlo;}
  70   Double_t*            GetDeltaPars()                   const {return fDeltaPar;}
  71   Double_t*            GetInitPars()                    const {return fInitPar;}
  72   Double_t*            GetSigmaPars()                   const {return fSigmaPar;}
  73   Bool_t*              GetIsLinear()                    const {return fIsLinear;}
  74   Double_t             GetFinalParam(int i)             const {int ir=GetRGId(i); return ir<0 ? 0:fDeltaPar[ir]+fInitPar[ir];}
  75   Double_t             GetFinalError(int i)             const {return GetParError(i);}
  76   Double_t             GetPull(int i)                   const;
  77   //
  78   Double_t             GetGlobal(Int_t i)               const {int ir=GetRGId(i); return ir<0 ? 0:fVecBGlo[ir];}
  79   Double_t             GetInitPar(Int_t i)              const {int ir=GetRGId(i); return ir<0 ? 0:fInitPar[ir];}
  80   Double_t             GetSigmaPar(Int_t i)             const {int ir=GetRGId(i); return ir<0 ? 0:fSigmaPar[ir];}
  81   Bool_t               GetIsLinear(Int_t i)             const {int ir=GetRGId(i); return ir<0 ? 0:fIsLinear[ir];}
  82   static Bool_t        IsGlobalMatSparse()                    {return fgIsMatGloSparse;}
  83   static Bool_t        IsWeightSigma()                        {return fgWeightSigma;}
  84   //
  85   void                 SetParamGrID(Int_t grID,Int_t i)       {int ir=GetRGId(i); if(ir<0) return; fParamGrID[ir] = grID; if(fNGroupsSet<grID)fNGroupsSet=grID;}
  86   void                 SetNGloPar(Int_t n)                    {fNGloPar = n;}
  87   void                 SetNLocPar(Int_t n)                    {fNLocPar = n;}
  88   void                 SetNMaxIterations(Int_t n=10)          {fMaxIter = n;}
  89   void                 SetNStdDev(Int_t n)                    {fNStdDev = n;}
  90   void                 SetChi2CutFactor(Float_t v)            {fChi2CutFactor = v;}
  91   void                 SetChi2CutRef(Float_t v)               {fChi2CutRef = v;}
  92   void                 SetResCurInit(Float_t v)               {fResCutInit = v;}
  93   void                 SetResCut(Float_t v)                   {fResCut = v;}
  94   void                 SetMinPntValid(Int_t n)                {fMinPntValid = n>0 ? n:1;}
  95   static void          SetGlobalMatSparse(Bool_t v=kTRUE)     {fgIsMatGloSparse = v;}
  96   static void          SetWeightSigma(Bool_t v=kTRUE)         {fgWeightSigma = v;}
  97   //
  98   void                 SetInitPars(const Double_t* par);
  99   void                 SetSigmaPars(const Double_t* par);
 100   void                 SetInitPar(Int_t i,Double_t par);
 101   void                 SetSigmaPar(Int_t i,Double_t par);
 102   //
 103   Int_t                GlobalFit(Double_t *par=0, Double_t *error=0, Double_t *pull=0);
 104   Int_t                GlobalFitIteration();
 105   Int_t                SolveGlobalMatEq();
 106   static void          SetInvChol(Bool_t v=kTRUE)             {fgInvChol = v;}
 107   static void          SetMinResPrecondType(Int_t tp=0)       {fgMinResCondType = tp;}
 108   static void          SetMinResTol(Double_t val=1e-12)       {fgMinResTol = val;}
 109   static void          SetMinResMaxIter(Int_t val=2000)       {fgMinResMaxIter = val;}
 110   static void          SetIterSolverType(Int_t val=AliMinResSolve::kSolMinRes) {fgIterSol = val;}
 111   static void          SetNKrylovV(Int_t val=60)              {fgNKrylovV = val;}
 112   //
 113   static Bool_t        GetInvChol()                           {return fgInvChol;}
 114   static Int_t         GetMinResPrecondType()                 {return fgMinResCondType;}
 115   static Double_t      GetMinResTol()                         {return fgMinResTol;}
 116   static Int_t         GetMinResMaxIter()                     {return fgMinResMaxIter;}
 117   static Int_t         GetIterSolverType()                    {return fgIterSol;}
 118   static Int_t         GetNKrylovV()                          {return fgNKrylovV;}
 119   //
 120   Double_t             GetParError(int iPar)           const;
 121   Int_t                PrintGlobalParameters()         const;
 122   void                 SetRejRunList(const UInt_t *runs, Int_t nruns);
 123   void                 SetAccRunList(const UInt_t *runs, Int_t nruns, const Float_t* wghList=0);
 124   Bool_t               IsRecordAcceptable();
 125   //
 126   //
 127   Int_t                SetIterations(double lChi2CutFac);
 128
 129   //
 130   // constraints
 131   void                 SetGlobalConstraint(const double *dergb, double val, double sigma=0);
 132   void                 SetGlobalConstraint(const int *indgb, const double *dergb, int ngb, double val, double sigma=0);
 133   //
 134   // processing of the local measurement
 135   void                 SetRecordRun(Int_t run);
 136   void                 SetRecordWeight(double wgh);
 137   void                 SetLocalEquation(double *dergb, double *derlc, double lMeas, double lSigma);
 138   void                 SetLocalEquation(int *indgb, double *dergb, int ngb, int *indlc,
 139                                         double *derlc,int nlc,double lMeas,double lSigma);
 140   //
 141   // manipilation with processed data and costraints records and its buffer
 142   void                 SetDataRecFName(const char* flname)   {fDataRecFName = flname;}
 143   const Char_t*        GetDataRecFName()               const {return fDataRecFName.Data();}
 144   void                 SetConsRecFName(const char* flname)   {fConstrRecFName = flname;}
 145   const Char_t*        GetConsRecFName()               const {return fConstrRecFName.Data();}
 146   //
 147   void   SetRecDataTreeName(const char* name=0)     {fRecDataTreeName = name;   if (fRecDataTreeName.IsNull()) fRecDataTreeName = "AliMillePedeRecords_Data";}
 148   void   SetRecConsTreeName(const char* name=0)     {fRecConsTreeName = name;   if (fRecConsTreeName.IsNull()) fRecConsTreeName = "AliMillePedeRecords_Consaints";}
 149   void   SetRecDataBranchName(const char* name=0)   {fRecDataBranchName = name; if (fRecDataBranchName.IsNull()) fRecDataBranchName = "Record_Data";}
 150   void   SetRecConsBranchName(const char* name=0)   {fRecConsBranchName = name; if (fRecConsBranchName.IsNull()) fRecConsBranchName = "Record_Consaints";}
 151   const char* GetRecDataTreeName()     const {return fRecDataTreeName.Data();}
 152   const char* GetRecConsTreeName()     const {return fRecConsTreeName.Data();}
 153   const char* GetRecDataBranchName()   const {return fRecDataBranchName.Data();}
 154   const char* GetRecConsBranchName()   const {return fRecConsBranchName.Data();}
 155   //
 156   Bool_t               InitDataRecStorage(Bool_t read=kFALSE);
 157   Bool_t               InitConsRecStorage(Bool_t read=kFALSE);
 158   Bool_t               ImposeDataRecFile(const char* fname);
 159   Bool_t               ImposeConsRecFile(const char* fname);
 160   void                 CloseDataRecStorage();
 161   void                 CloseConsRecStorage();
 162   void                 ReadRecordData(Long_t recID);
 163   void                 ReadRecordConstraint(Long_t recID);
 164   Bool_t               ReadNextRecordData();
 165   Bool_t               ReadNextRecordConstraint();
 166   void                 SaveRecordData();
 167   void                 SaveRecordConstraint();
 168   AliMillePedeRecord*  GetRecord()                      const {return fRecord;}
 169   Long_t               GetSelFirst()                    const {return fSelFirst;}
 170   Long_t               GetSelLast()                     const {return fSelLast;}
 171   void                 SetSelFirst(Long_t v)                  {fSelFirst = v;}
 172   void                 SetSelLast(Long_t v)                   {fSelLast = v;}
 173   //
 174   Float_t              Chi2DoFLim(int nSig, int nDoF)   const;
 175   //
 176   // aliases for compatibility with millipede1
 177   void                 SetParSigma(Int_t i,Double_t par)      {SetSigmaPar(i,par);}
 178   void                 SetGlobalParameters(Double_t *par)     {SetInitPars(par);}
 179   void                 SetNonLinear(int index, Bool_t v=kTRUE) {int id = GetRGId(index); if (id<0) return; fIsLinear[id] = !v;}
 180   //
 181  protected:
 182   //
 183   Int_t                LocalFit(double *localParams=0);
 184   Bool_t               IsZero(Double_t v,Double_t eps=1e-16)   const {return TMath::Abs(v)<eps;}
 185   //
 186  protected:
 187   //
 188   Int_t                 fNLocPar;                        // number of local parameters
 189   Int_t                 fNGloPar;                        // number of global parameters
 190   Int_t                 fNGloParIni;                     // number of global parameters before grouping
 191   Int_t                 fNGloSize;                       // final size of the global matrix (NGloPar+NConstraints)
 192   //
 193   Long_t                fNLocEquations;                  // Number of local equations
 194   Int_t                 fIter;                           // Current iteration
 195   Int_t                 fMaxIter;                        // Maximum number of iterations
 196   Int_t                 fNStdDev;                        // Number of standard deviations for chi2 cut
 197   Int_t                 fNGloConstraints;                // Number of constraint equations
 198   Int_t                 fNLagrangeConstraints;           // Number of constraint equations requiring Lagrange multiplier
 199   Long_t                fNLocFits;                       // Number of local fits
 200   Long_t                fNLocFitsRejected;               // Number of local fits rejected
 201   Int_t                 fNGloFix;                        // Number of globals fixed by user
 202   Int_t                 fGloSolveStatus;                 // Status of global solver at current step
 203   //
 204   Float_t               fChi2CutFactor;                  // Cut factor for chi2 cut to accept local fit
 205   Float_t               fChi2CutRef;                     // Reference cut for chi2 cut to accept local fit
 206   Float_t               fResCutInit;                     // Cut in residual for first iterartion
 207   Float_t               fResCut;                         // Cut in residual for other iterartiona
 208   Int_t                 fMinPntValid;                    // min number of points for global to vary
 209   //
 210   Int_t                 fNGroupsSet;                     // number of groups set
 211   Int_t                *fParamGrID;                      //[fNGloPar] group id for the every parameter
 212   Int_t                *fProcPnt;                        //[fNGloPar] N of processed points per global variable
 213   Double_t             *fVecBLoc;                        //[fNLocPar] Vector B local (parameters)
 214   Double_t             *fDiagCGlo;                       //[fNGloPar] Initial diagonal elements of C global matrix
 215   Double_t             *fVecBGlo;                        //! Vector B global (parameters)
 216   //
 217   Double_t             *fInitPar;                        //[fNGloPar] Initial global parameters
 218   Double_t             *fDeltaPar;                       //[fNGloPar] Variation of global parameters
 219   Double_t             *fSigmaPar;                       //[fNGloPar] Sigma of allowed variation of global parameter
 220   //
 221   Bool_t               *fIsLinear;                       //[fNGloPar] Flag for linear parameters
 222   Bool_t               *fConstrUsed;                     //! Flag for used constraints
 223   //
 224   Int_t                *fGlo2CGlo;                       //[fNGloPar] global ID to compressed ID buffer
 225   Int_t                *fCGlo2Glo;                       //[fNGloPar] compressed ID to global ID buffer
 226   //
 227   // Matrices
 228   AliSymMatrix         *fMatCLoc;                        // Matrix C local
 229   AliMatrixSq          *fMatCGlo;                        // Matrix C global
 230   AliRectMatrix        *fMatCGloLoc;                     // Rectangular matrix C g*l
 231   Int_t                *fFillIndex;                      //[fNGloPar] auxilary index array for fast matrix fill
 232   Double_t             *fFillValue;                      //[fNGloPar] auxilary value array for fast matrix fill
 233   //
 234   // processed data record bufferization
 235   TString               fRecDataTreeName;                // Name of data records tree
 236   TString               fRecConsTreeName;                // Name of constraints records tree
 237   TString               fRecDataBranchName;              // Name of data records branch name
 238   TString               fRecConsBranchName;              // Name of constraints records branch name
 239
 240   TString               fDataRecFName;                   // Name of File for data records
 241   AliMillePedeRecord   *fRecord;                         // Buffer of measurements records
 242   TFile                *fDataRecFile;                    // File of processed measurements records
 243   TTree                *fTreeData;                       // Tree of processed measurements records
 244   Int_t                 fRecFileStatus;                  // state of the record file (0-no, 1-read, 2-rw)
 245   //
 246   TString               fConstrRecFName;                 // Name of File for constraints records
 247   TTree                *fTreeConstr;                     //! Tree of constraint records
 248   TFile                *fConsRecFile;                    //! File of processed constraints records
 249   Long_t                fCurrRecDataID;                  // ID of the current data record
 250   Long_t                fCurrRecConstrID;                // ID of the current constraint record
 251   Bool_t                fLocFitAdd;                      // Add contribution of carrent track (and not eliminate it)
 252   Int_t                 fSelFirst;                       // event selection start
 253   Int_t                 fSelLast;                        // event selection end
 254   TArrayL*              fRejRunList;                     // list of runs to reject (if any)
 255   TArrayL*              fAccRunList;                     // list of runs to select (if any)
 256   TArrayF*              fAccRunListWgh;                  // optional weights for data of accepted runs (if any)
 257   Double_t              fRunWgh;                         // run weight
 258   const Int_t*          fkReGroup;                       // optional regrouping of parameters wrt ID's from the records
 259   //
 260   static Bool_t         fgInvChol;                       // Invert global matrix in Cholesky solver
 261   static Bool_t         fgWeightSigma;                   // weight parameter constraint by statistics
 262   static Bool_t         fgIsMatGloSparse;                // Type of the global matrix (sparse ...)
 263   static Int_t          fgMinResCondType;                // Type of the preconditioner for MinRes method
 264   static Double_t       fgMinResTol;                     // Tolerance for MinRes solution
 265   static Int_t          fgMinResMaxIter;                 // Max number of iterations for the MinRes method
 266   static Int_t          fgIterSol;                       // type of iterative solution: MinRes or FGMRES
 267   static Int_t          fgNKrylovV;                      // size of Krylov vectors buffer in FGMRES
 268   //
 269   ClassDef(AliMillePede2,1)
 270 };
 271
 272 //_____________________________________________________________________________________________
 273 inline void AliMillePede2::ReadRecordData(Long_t recID)       {fTreeData->GetEntry(recID); fCurrRecDataID=recID;}
 274
 275 //_____________________________________________________________________________________________
 276 inline void AliMillePede2::ReadRecordConstraint(Long_t recID) {fTreeConstr->GetEntry(recID); fCurrRecConstrID=recID;}
 277
 278 //_____________________________________________________________________________________________
 279 inline void AliMillePede2::SaveRecordData()                   {fTreeData->Fill(); fRecord->Reset(); fCurrRecDataID++;}
 280
 281 //_____________________________________________________________________________________________
 282 inline void AliMillePede2::SaveRecordConstraint()             {fTreeConstr->Fill(); fRecord->Reset();fCurrRecConstrID++;}
 283
 284 #endif