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TGondzioSolver Class Reference

Derived class of TQpSolverBase implementing Gondzio-correction version of Mehrotra's original predictor-corrector algorithm.

Definition at line 56 of file TGondzioSolver.h.

Public Member Functions

 TGondzioSolver ()
 Default constructor.
 TGondzioSolver (const TGondzioSolver &another)
 Copy constructor.
 TGondzioSolver (TQpProbBase *of, TQpDataBase *prob, Int_t verbose=0)
virtual ~TGondzioSolver ()
virtual void DefMonitor (TQpDataBase *data, TQpVar *vars, TQpResidual *resids, Double_t alpha, Double_t sigma, Int_t i, Double_t mu, Int_t status_code, Int_t level)
 Print information about the optimization process and monitor the convergence status of thye algorithm.
TGondzioSolveroperator= (const TGondzioSolver &source)
 Assignment operator.
virtual void Reset_parameters ()
virtual Int_t Solve (TQpDataBase *prob, TQpVar *iterate, TQpResidual *resid)
 Solve the quadratic programming problem as formulated through prob, store the final solution in iterate->fX .
- Public Member Functions inherited from TQpSolverBase
 TQpSolverBase ()
 Default constructor.
 TQpSolverBase (const TQpSolverBase &another)
 Copy constructor.
virtual ~TQpSolverBase ()
Double_t DataNorm ()
virtual void DefStart (TQpProbBase *formulation, TQpVar *iterate, TQpDataBase *prob, TQpResidual *resid, TQpVar *step)
 Default starting point.
virtual Int_t DefStatus (TQpDataBase *data, TQpVar *vars, TQpResidual *resids, Int_t i, Double_t mu, Int_t level)
 Default status method.
virtual void DoMonitor (TQpDataBase *data, TQpVar *vars, TQpResidual *resids, Double_t alpha, Double_t sigma, Int_t i, Double_t mu, Int_t stop_code, Int_t level)
 Monitor progress / convergence aat each interior-point iteration.
virtual Int_t DoStatus (TQpDataBase *data, TQpVar *vars, TQpResidual *resids, Int_t i, Double_t mu, Int_t level)
 Tests for termination.
virtual void DumbStart (TQpProbBase *formulation, TQpVar *iterate, TQpDataBase *prob, TQpResidual *resid, TQpVar *step)
 Alternative starting point heuristic: sets the "complementary" variables to a large positive value (based on the norm of the problem data) and the remaining variables to zero .
virtual Double_t FinalStepLength (TQpVar *iterate, TQpVar *step)
 Implements a version of Mehrotra starting point heuristic, modified to ensure identical steps in the primal and dual variables.
Double_t GetArTol ()
TQpLinSolverBaseGetLinearSystem ()
Double_t GetMuTol ()
TQpSolverBaseoperator= (const TQpSolverBase &source)
 Assignment operator.
void SetArTol (Double_t ar)
void SetMuTol (Double_t m)
virtual void Start (TQpProbBase *formulation, TQpVar *iterate, TQpDataBase *prob, TQpResidual *resid, TQpVar *step)
 Implements a default starting-point heuristic.
virtual void SteveStart (TQpProbBase *formulation, TQpVar *iterate, TQpDataBase *prob, TQpResidual *resid, TQpVar *step)
 Starting point algoritm according to Stephen Wright.
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor.
 TObject (const TObject &object)
 TObject copy ctor.
virtual ~TObject ()
 TObject destructor.
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract.
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad.
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action.
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
virtual const char * ClassName () const
 Returns name of class to which the object belongs.
virtual void Clear (Option_t *="")
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility.
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method.
virtual void Copy (TObject &object) const
 Copy this to obj.
virtual void Delete (Option_t *option="")
 Delete this object.
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object.
virtual void Draw (Option_t *option="")
 Default Draw method for all objects.
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs.
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad).
virtual void Dump () const
 Dump contents of object on stdout.
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message.
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g.
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray.
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py).
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message.
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
virtual const char * GetIconName () const
 Returns mime type name of object.
virtual const char * GetName () const
 Returns name of object.
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py).
virtual Option_tGetOption () const
virtual const char * GetTitle () const
 Returns title of object.
virtual UInt_t GetUniqueID () const
 Return the unique object id.
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out.
virtual ULong_t Hash () const
 Return hash value for this object.
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message.
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname".
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl.
virtual void Inspect () const
 Dump contents of this object in a graphics canvas.
void InvertBit (UInt_t f)
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory).
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
R__ALWAYS_INLINE Bool_t IsOnHeap () const
virtual Bool_t IsSortable () const
R__ALWAYS_INLINE Bool_t IsZombie () const
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout.
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
virtual Bool_t Notify ()
 This method must be overridden to handle object notification.
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete.
void operator delete (void *ptr)
 Operator delete.
void operator delete[] (void *ptr)
 Operator delete [].
voidoperator new (size_t sz)
voidoperator new (size_t sz, void *vp)
voidoperator new[] (size_t sz)
voidoperator new[] (size_t sz, void *vp)
TObjectoperator= (const TObject &rhs)
 TObject assignment operator.
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself.
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list.
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself.
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory.
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list.
void ResetBit (UInt_t f)
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename.
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out".
void SetBit (UInt_t f)
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f.
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object.
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id.
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message.
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
Int_t TestBits (UInt_t f) const
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message.
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.

Protected Attributes

Double_t fAcceptTol
Double_t fBeta_max
Double_t fBeta_min
Int_t fMaximum_correctors
Int_t fNumberGondzioCorrections
Int_t fPrintlevel
Double_t fStepFactor0
Double_t fStepFactor1
Double_t fTsig
- Protected Attributes inherited from TQpSolverBase
Double_t fArtol
Double_t fDnorm
Double_t fGamma_a
Double_t fGamma_f
Int_t fMaxit
Double_t fMutol
Double_t fPhi

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
enum  EStatusBits {
  kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
  kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag.
static Bool_t GetObjectStat ()
 Get status of object stat flag.
static void SetDtorOnly (void *obj)
 Set destructor only flag.
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable.
- Public Attributes inherited from TQpSolverBase
Int_t fIter
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected).
void MakeZombie ()

#include <TGondzioSolver.h>

Inheritance diagram for TGondzioSolver:

Constructor & Destructor Documentation

◆ TGondzioSolver() [1/3]

TGondzioSolver::TGondzioSolver ( )

Default constructor.

Definition at line 63 of file TGondzioSolver.cxx.

◆ TGondzioSolver() [2/3]

TGondzioSolver::TGondzioSolver ( TQpProbBase of,
TQpDataBase prob,
Int_t  verbose = 0 


Definition at line 86 of file TGondzioSolver.cxx.

◆ TGondzioSolver() [3/3]

TGondzioSolver::TGondzioSolver ( const TGondzioSolver another)

Copy constructor.

Definition at line 118 of file TGondzioSolver.cxx.

◆ ~TGondzioSolver()

TGondzioSolver::~TGondzioSolver ( )


Definition at line 326 of file TGondzioSolver.cxx.

Member Function Documentation

◆ DefMonitor()

void TGondzioSolver::DefMonitor ( TQpDataBase data,
TQpVar vars,
TQpResidual resids,
Double_t  alpha,
Double_t  sigma,
Int_t  i,
Double_t  mu,
Int_t  status_code,
Int_t  level 

Print information about the optimization process and monitor the convergence status of thye algorithm.

Implements TQpSolverBase.

Definition at line 276 of file TGondzioSolver.cxx.

◆ operator=()

TGondzioSolver & TGondzioSolver::operator= ( const TGondzioSolver source)

Assignment operator.

Definition at line 337 of file TGondzioSolver.cxx.

◆ Reset_parameters()

virtual void TGondzioSolver::Reset_parameters ( )

Definition at line 95 of file TGondzioSolver.h.

◆ Solve()

Int_t TGondzioSolver::Solve ( TQpDataBase prob,
TQpVar iterate,
TQpResidual resid 

Solve the quadratic programming problem as formulated through prob, store the final solution in iterate->fX .

Monitor the residuals during the iterations through resid . The status is returned as defined in TQpSolverBase::ETerminationCode .

Implements TQpSolverBase.

Definition at line 129 of file TGondzioSolver.cxx.

Member Data Documentation

◆ fAcceptTol

Double_t TGondzioSolver::fAcceptTol

Definition at line 74 of file TGondzioSolver.h.

◆ fBeta_max

Double_t TGondzioSolver::fBeta_max

Definition at line 76 of file TGondzioSolver.h.

◆ fBeta_min

Double_t TGondzioSolver::fBeta_min

Definition at line 75 of file TGondzioSolver.h.

◆ fCorrector_resid

TQpResidual* TGondzioSolver::fCorrector_resid

Definition at line 81 of file TGondzioSolver.h.

◆ fCorrector_step

TQpVar* TGondzioSolver::fCorrector_step

Definition at line 78 of file TGondzioSolver.h.

◆ fFactory

TQpProbBase* TGondzioSolver::fFactory

Definition at line 83 of file TGondzioSolver.h.

◆ fMaximum_correctors

Int_t TGondzioSolver::fMaximum_correctors

Definition at line 68 of file TGondzioSolver.h.

◆ fNumberGondzioCorrections

Int_t TGondzioSolver::fNumberGondzioCorrections

Definition at line 70 of file TGondzioSolver.h.

◆ fPrintlevel

Int_t TGondzioSolver::fPrintlevel

Definition at line 61 of file TGondzioSolver.h.

◆ fStep

TQpVar* TGondzioSolver::fStep

Definition at line 79 of file TGondzioSolver.h.

◆ fStepFactor0

Double_t TGondzioSolver::fStepFactor0

Definition at line 72 of file TGondzioSolver.h.

◆ fStepFactor1

Double_t TGondzioSolver::fStepFactor1

Definition at line 73 of file TGondzioSolver.h.

◆ fTsig

Double_t TGondzioSolver::fTsig

Definition at line 63 of file TGondzioSolver.h.

Libraries for TGondzioSolver:

The documentation for this class was generated from the following files: