Ipopt::TSymLinearSolver Class Reference

General driver for linear solvers for sparse indefinite symmetric matrices. More...

#include <IpTSymLinearSolver.hpp>

Inheritance diagram for Ipopt::TSymLinearSolver:

Public Member Functions
bool	InitializeImpl (const OptionsList &options, const std::string &prefix)
	Implementation of the initialization method that has to be overloaded by for each derived class.
Constructor/Destructor
	TSymLinearSolver (SmartPtr< SparseSymLinearSolverInterface > solver_interface, SmartPtr< TSymScalingMethod > scaling_method)
	Constructor.
virtual	~TSymLinearSolver ()
	Destructor.
Methods for requesting solution of the linear system.
virtual ESymSolverStatus	MultiSolve (const SymMatrix &A, std::vector< SmartPtr< const Vector > > &rhsV, std::vector< SmartPtr< Vector > > &solV, bool check_NegEVals, Index numberOfNegEVals)
	Solve operation for multiple right hand sides.
virtual Index	NumberOfNegEVals () const
	Number of negative eigenvalues detected during last factorization.
virtual bool	IncreaseQuality ()
	Request to increase quality of solution for next solve.
virtual bool	ProvidesInertia () const
	Query whether inertia is computed by linear solver.
Methods related to the detection of linearly dependent
rows in a matrix
bool	ProvidesDegeneracyDetection () const
ESymSolverStatus	DetermineDependentRows (Index n_rows, Index n_cols, Index n_jac_nz, Number *jac_c_vals, Index *jac_c_iRow, Index *jac_c_jCol, std::list< Index > &c_deps)
Public Member Functions inherited from Ipopt::SymLinearSolver
	SymLinearSolver ()
virtual	~SymLinearSolver ()
ESymSolverStatus	Solve (const SymMatrix &A, const Vector &rhs, Vector &sol, bool check_NegEVals, Index numberOfNegEVals)
	Solve operation for a single right hand side.
Public Member Functions inherited from Ipopt::AlgorithmStrategyObject
bool	Initialize (const Journalist &jnlst, IpoptNLP &ip_nlp, IpoptData &ip_data, IpoptCalculatedQuantities &ip_cq, const OptionsList &options, const std::string &prefix)
	This method is called every time the algorithm starts again - it is used to reset any internal state.
bool	ReducedInitialize (const Journalist &jnlst, const OptionsList &options, const std::string &prefix)
	Reduced version of the Initialize method, which does not require special Ipopt information.
	AlgorithmStrategyObject ()
	Default Constructor.
virtual	~AlgorithmStrategyObject ()
	Destructor.
Public Member Functions inherited from Ipopt::ReferencedObject
	ReferencedObject ()
virtual	~ReferencedObject ()
Index	ReferenceCount () const
void	AddRef (const Referencer *referencer) const
void	ReleaseRef (const Referencer *referencer) const

Static Public Member Functions
static void	RegisterOptions (SmartPtr< RegisteredOptions > roptions)
	Methods for OptionsList.

Private Member Functions
Default Compiler Generated Methods
(Hidden to avoid implicit creation/calling). These methods are not implemented and we do not want the compiler to implement them for us, so we declare them private and do not define them. This ensures that they will not be implicitly created/called.
	TSymLinearSolver ()
	Default Constructor.
	TSymLinearSolver (const TSymLinearSolver &)
	Copy Constructor.
void	operator= (const TSymLinearSolver &)
	Default Assignment Operator.
Internal functions
ESymSolverStatus	InitializeStructure (const SymMatrix &symT_A)
	Initialize nonzero structure.
void	GiveMatrixToSolver (bool new_matrix, const SymMatrix &sym_A)
	Copy the elements of the matrix in the required format into the array that is provided by the solver interface.

Private Attributes
SmartPtr< SparseSymLinearSolverInterface >	solver_interface_
	Strategy Object for an interface to a linear solver.
Information about the matrix
TaggedObject::Tag	atag_
	Tag for the incoming matrix.
Index	dim_
	Number of rows and columns of the matrix.
Index	nonzeros_triplet_
	Number of nonzeros of the matrix in triplet format.
Index	nonzeros_compressed_
	Number of nonzeros in compressed format.
Initialization flags
bool	have_structure_
	Flag indicating if the internal structures are initialized.
bool	linear_scaling_on_demand_
	Flag indicating whether the scaling objected is to be switched on when increased quality is requested.
bool	initialized_
	Flag indicating if the InitializeStructure method has been called for the linear solver.
Stuff for scaling of the linear system.
SmartPtr< TSymScalingMethod >	scaling_method_
	Strategy Object for a method that computes scaling factors for the matrices.
Number *	scaling_factors_
	Array storing the scaling factors.
bool	use_scaling_
	Flag indicating whether scaling should be performed.
bool	just_switched_on_scaling_
	Flag indicating whether we just switched on the scaling.
information about the matrix.
Index *	airn_
	row indices of matrix in triplet (MA27) format.
Index *	ajcn_
	column indices of matrix in triplet (MA27) format.
SmartPtr< TripletToCSRConverter >