AugRestoSystemSolver Class Reference

#include <IpAugRestoSystemSolver.hpp>

Inheritance diagram for AugRestoSystemSolver:

List of all members.

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Detailed Description

Class that converts the an augmented system with compound restoration pieces into a smaller "pivoted" system to be solved with an existing AugSystemSolver.

This is really a decorator that changes the behavior of the AugSystemSolver to account for the known structure of the restoration phase.

Public Member Functions
bool	InitializeImpl (const OptionsList &options, const std::string &prefix)
	overloaded from AlgorithmStrategyObject
virtual ESymSolverStatus	Solve (const SymMatrix *W, double W_factor, const Vector *D_x, double delta_x, const Vector *D_s, double delta_s, const Matrix *J_c, const Vector *D_c, double delta_c, const Matrix *J_d, const Vector *D_d, double delta_d, const Vector &rhs_x, const Vector &rhs_s, const Vector &rhs_c, const Vector &rhs_d, Vector &sol_x, Vector &sol_s, Vector &sol_c, Vector &sol_d, bool check_NegEVals, Index numberOfNegEVals)
	Translate the augmented system (in the full space of the restoration variables) into the smaller space of the original variables.
virtual Index	NumberOfNegEVals () const
	Returns the number of negative eigenvalues from the original augmented system call.
virtual bool	ProvidesInertia () const
	Query whether inertia is computed by linear solver.
virtual bool	IncreaseQuality ()
	Request to increase quality of solution for next solve.
Constructors/Destructors
	AugRestoSystemSolver (AugSystemSolver &orig_aug_solver, bool skip_orig_aug_solver_init=true)
	Constructor.
virtual	~AugRestoSystemSolver ()
	Default destructor.

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Constructor & Destructor Documentation

AugRestoSystemSolver	(	AugSystemSolver &	orig_aug_solver,
		bool	skip_orig_aug_solver_init = true
	)

Constructor.

Here, orig_aug_solver is the object for solving the original augmented system. The flag skip_orig_aug_solver_init indicates, if the initialization call (to Initialize) should be skipped; this flag will usually be true, so that the symbolic factorization of the main algorithm will be used.

References DBG_START_METH.

~AugRestoSystemSolver

(

)

[virtual]

Default destructor.

References DBG_START_METH.

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Member Function Documentation

bool InitializeImpl	(	const OptionsList &	options,
		const std::string &	prefix
	)			[virtual]

overloaded from AlgorithmStrategyObject

Implements AugSystemSolver.

References AlgorithmStrategyObject::IpCq(), AlgorithmStrategyObject::IpData(), AlgorithmStrategyObject::IpNLP(), and AlgorithmStrategyObject::Jnlst().

ESymSolverStatus Solve	(	const SymMatrix *	W,
		double	W_factor,
		const Vector *	D_x,
		double	delta_x,
		const Vector *	D_s,
		double	delta_s,
		const Matrix *	J_c,
		const Vector *	D_c,
		double	delta_c,
		const Matrix *	J_d,
		const Vector *	D_d,
		double	delta_d,
		const Vector &	rhs_x,
		const Vector &	rhs_s,
		const Vector &	rhs_c,
		const Vector &	rhs_d,
		Vector &	sol_x,
		Vector &	sol_s,
		Vector &	sol_c,
		Vector &	sol_d,
		bool	check_NegEVals,
		Index	numberOfNegEVals
	)			[virtual]

Translate the augmented system (in the full space of the restoration variables) into the smaller space of the original variables.

Reimplemented from AugSystemSolver.

References DBG_ASSERT, DBG_PRINT, DBG_PRINT_MATRIX, DBG_PRINT_VECTOR, DBG_START_METH, Ipopt::GetRawPtr(), Ipopt::IsValid(), and Ipopt::SYMSOLVER_SUCCESS.

virtual Index NumberOfNegEVals

(

)

const [inline, virtual]

Returns the number of negative eigenvalues from the original augmented system call.

Implements AugSystemSolver.

virtual bool ProvidesInertia

(

)

const [inline, virtual]

Query whether inertia is computed by linear solver.

Returns true, if linear solver provides inertia.

Implements AugSystemSolver.

virtual bool IncreaseQuality

(

)

[inline, virtual]

Request to increase quality of solution for next solve.

Ask underlying linear solver to increase quality of solution for the next solve (e.g. increase pivot tolerance). Returns false, if this is not possible (e.g. maximal pivot tolerance already used.)

Implements AugSystemSolver.

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

• IpAugRestoSystemSolver.hpp
• IpAugRestoSystemSolver.cpp