RelaxedVarConstraints Class Reference

Derived class within the Constraints hierarchy which employs relaxation of discrete variables. More...

Inheritance diagram for RelaxedVarConstraints:

Public Member Functions
	RelaxedVarConstraints (const SharedVariablesData &svd)
	lightweight constructor
	RelaxedVarConstraints (const ProblemDescDB &problem_db, const SharedVariablesData &svd)
	standard constructor More...
	~RelaxedVarConstraints ()
	destructor
void	write (std::ostream &s) const
	write a variable constraints object to an std::ostream
void	read (std::istream &s)
	read a variable constraints object from an std::istream
Public Member Functions inherited from Constraints
	Constraints ()
	default constructor More...
	Constraints (const ProblemDescDB &prob_db, const SharedVariablesData &svd)
	standard constructor More...
	Constraints (const SharedVariablesData &svd)
	alternate constructor for instantiations on the fly More...
	Constraints (const Constraints &con)
	copy constructor More...
virtual	~Constraints ()
	destructor
Constraints	operator= (const Constraints &con)
	assignment operator More...
void	active_bounds (const Constraints &cons)
	copy active {cv,div,drv} {lower,upper} bounds from incoming object
void	all_bounds (const Constraints &cons)
	copy all {cv,div,drv} {lower,upper} bounds from incoming object
void	active_to_all_bounds (const Constraints &cons)
	copy active {cv,div,drv} {lower,upper} bounds from incoming object to all bounds of this instance
void	all_to_active_bounds (const Constraints &cons)
	copy all {cv,div,drv} {lower,upper} bounds from incoming object to active bounds of this instance
void	inactive_bounds (const Constraints &cons)
	copy inactive {cv,div,drv} {lower,upper} bounds from incoming object
const RealVector &	continuous_lower_bounds () const
	return the active continuous variable lower bounds
Real	continuous_lower_bound (size_t i) const
	return an active continuous variable lower bound
void	continuous_lower_bounds (const RealVector &cl_bnds)
	set the active continuous variable lower bounds
void	continuous_lower_bound (Real cl_bnd, size_t i)
	set an active continuous variable lower bound
const RealVector &	continuous_upper_bounds () const
	return the active continuous variable upper bounds
Real	continuous_upper_bound (size_t i) const
	return an active continuous variable upper bound
void	continuous_upper_bounds (const RealVector &cu_bnds)
	set the active continuous variable upper bounds
void	continuous_upper_bound (Real cu_bnd, size_t i)
	set an active continuous variable upper bound
const IntVector &	discrete_int_lower_bounds () const
	return the active discrete variable lower bounds
int	discrete_int_lower_bound (size_t i) const
	return an active discrete variable lower bound
void	discrete_int_lower_bounds (const IntVector &dil_bnds)
	set the active discrete variable lower bounds
void	discrete_int_lower_bound (int dil_bnd, size_t i)
	set an active discrete variable lower bound
const IntVector &	discrete_int_upper_bounds () const
	return the active discrete variable upper bounds
int	discrete_int_upper_bound (size_t i) const
	return an active discrete variable upper bound
void	discrete_int_upper_bounds (const IntVector &diu_bnds)
	set the active discrete variable upper bounds
void	discrete_int_upper_bound (int diu_bnd, size_t i)
	set an active discrete variable upper bound
const RealVector &	discrete_real_lower_bounds () const
	return the active discrete variable lower bounds
Real	discrete_real_lower_bound (size_t i) const
	return an active discrete variable lower bound
void	discrete_real_lower_bounds (const RealVector &drl_bnds)
	set the active discrete variable lower bounds
void	discrete_real_lower_bound (Real drl_bnd, size_t i)
	set an active discrete variable lower bound
const RealVector &	discrete_real_upper_bounds () const
	return the active discrete variable upper bounds
Real	discrete_real_upper_bound (size_t i) const
	return an active discrete variable upper bound
void	discrete_real_upper_bounds (const RealVector &dru_bnds)
	set the active discrete variable upper bounds
void	discrete_real_upper_bound (Real dru_bnd, size_t i)
	set an active discrete variable upper bound
const RealVector &	inactive_continuous_lower_bounds () const
	return the inactive continuous lower bounds
void	inactive_continuous_lower_bounds (const RealVector &icl_bnds)
	set the inactive continuous lower bounds
const RealVector &	inactive_continuous_upper_bounds () const
	return the inactive continuous upper bounds
void	inactive_continuous_upper_bounds (const RealVector &icu_bnds)
	set the inactive continuous upper bounds
const IntVector &	inactive_discrete_int_lower_bounds () const
	return the inactive discrete lower bounds
void	inactive_discrete_int_lower_bounds (const IntVector &idil_bnds)
	set the inactive discrete lower bounds
const IntVector &	inactive_discrete_int_upper_bounds () const
	return the inactive discrete upper bounds
void	inactive_discrete_int_upper_bounds (const IntVector &idiu_bnds)
	set the inactive discrete upper bounds
const RealVector &	inactive_discrete_real_lower_bounds () const
	return the inactive discrete lower bounds
void	inactive_discrete_real_lower_bounds (const RealVector &idrl_bnds)
	set the inactive discrete lower bounds
const RealVector &	inactive_discrete_real_upper_bounds () const
	return the inactive discrete upper bounds
void	inactive_discrete_real_upper_bounds (const RealVector &idru_bnds)
	set the inactive discrete upper bounds
const RealVector &	all_continuous_lower_bounds () const
	returns a single array with all continuous lower bounds
void	all_continuous_lower_bounds (const RealVector &acl_bnds)
	sets all continuous lower bounds using a single array
void	all_continuous_lower_bound (Real acl_bnd, size_t i)
	set a lower bound within the all continuous lower bounds array
const RealVector &	all_continuous_upper_bounds () const
	returns a single array with all continuous upper bounds
void	all_continuous_upper_bounds (const RealVector &acu_bnds)
	sets all continuous upper bounds using a single array
void	all_continuous_upper_bound (Real acu_bnd, size_t i)
	set an upper bound within the all continuous upper bounds array
const IntVector &	all_discrete_int_lower_bounds () const
	returns a single array with all discrete lower bounds
void	all_discrete_int_lower_bounds (const IntVector &adil_bnds)
	sets all discrete lower bounds using a single array
void	all_discrete_int_lower_bound (int adil_bnd, size_t i)
	set a lower bound within the all discrete lower bounds array
const IntVector &	all_discrete_int_upper_bounds () const
	returns a single array with all discrete upper bounds
void	all_discrete_int_upper_bounds (const IntVector &adiu_bnds)
	sets all discrete upper bounds using a single array
void	all_discrete_int_upper_bound (int adiu_bnd, size_t i)
	set an upper bound within the all discrete upper bounds array
const RealVector &	all_discrete_real_lower_bounds () const
	returns a single array with all discrete lower bounds
void	all_discrete_real_lower_bounds (const RealVector &adrl_bnds)
	sets all discrete lower bounds using a single array
void	all_discrete_real_lower_bound (Real adrl_bnd, size_t i)
	set a lower bound within the all discrete lower bounds array
const RealVector &	all_discrete_real_upper_bounds () const
	returns a single array with all discrete upper bounds
void	all_discrete_real_upper_bounds (const RealVector &adru_bnds)
	sets all discrete upper bounds using a single array
void	all_discrete_real_upper_bound (Real adru_bnd, size_t i)
	set an upper bound within the all discrete upper bounds array
size_t	num_linear_ineq_constraints () const
	return the number of linear inequality constraints
size_t	num_linear_eq_constraints () const
	return the number of linear equality constraints
const RealMatrix &	linear_ineq_constraint_coeffs () const
	return the linear inequality constraint coefficients
void	linear_ineq_constraint_coeffs (const RealMatrix &lin_ineq_coeffs)
	set the linear inequality constraint coefficients
const RealVector &	linear_ineq_constraint_lower_bounds () const
	return the linear inequality constraint lower bounds
void	linear_ineq_constraint_lower_bounds (const RealVector &lin_ineq_l_bnds)
	set the linear inequality constraint lower bounds
const RealVector &	linear_ineq_constraint_upper_bounds () const
	return the linear inequality constraint upper bounds
void	linear_ineq_constraint_upper_bounds (const RealVector &lin_ineq_u_bnds)
	set the linear inequality constraint upper bounds
const RealMatrix &	linear_eq_constraint_coeffs () const
	return the linear equality constraint coefficients
void	linear_eq_constraint_coeffs (const RealMatrix &lin_eq_coeffs)
	set the linear equality constraint coefficients
const RealVector &	linear_eq_constraint_targets () const
	return the linear equality constraint targets
void	linear_eq_constraint_targets (const RealVector &lin_eq_targets)
	set the linear equality constraint targets
size_t	num_nonlinear_ineq_constraints () const
	return the number of nonlinear inequality constraints
size_t	num_nonlinear_eq_constraints () const
	return the number of nonlinear equality constraints
const RealVector &	nonlinear_ineq_constraint_lower_bounds () const
	return the nonlinear inequality constraint lower bounds
void	nonlinear_ineq_constraint_lower_bounds (const RealVector &nln_ineq_l_bnds)
	set the nonlinear inequality constraint lower bounds
const RealVector &	nonlinear_ineq_constraint_upper_bounds () const
	return the nonlinear inequality constraint upper bounds
void	nonlinear_ineq_constraint_upper_bounds (const RealVector &nln_ineq_u_bnds)
	set the nonlinear inequality constraint upper bounds
const RealVector &	nonlinear_eq_constraint_targets () const
	return the nonlinear equality constraint targets
void	nonlinear_eq_constraint_targets (const RealVector &nln_eq_targets)
	set the nonlinear equality constraint targets
Constraints	copy () const
	for use when a deep copy is needed (the representation is not shared) More...
void	update_nonlinear_constraints (const Constraints &cons)
	copy nonlinear constraint data between existing Constraints objects
void	update_linear_constraints (const Constraints &cons)
	copy linear constraint data between existing Constraints objects
void	update_variable_bounds (const Constraints &cons)
	copy variable lower/upper bound data between existing Constraints objects
void	update (const Constraints &cons)
	copy bounds and linear/nonlinear constraint data between existing Constraints objects More...
void	shape_bounds ()
	shape the lower/upper bound arrays based on sharedVarsData More...
void	reshape (size_t num_nln_ineq_cons, size_t num_nln_eq_cons, const SharedVariablesData &svd)
	reshape the linear/nonlinear/bound constraint arrays arrays and the lower/upper bound arrays
void	reshape_bounds ()
	reshape the lower/upper bound arrays based on sharedVarsData
void	reshape_nonlinear (size_t num_nln_ineq_cons, size_t num_nln_eq_cons)
	reshape the nonlinear constraint array sizes More...
void	reshape_linear (size_t num_lin_ineq_cons, size_t num_lin_eq_cons)
	reshape the linear constraint array sizes More...
void	reshape_update_linear (const SharedVariablesData &prev_svd, const SharedVariablesData &curr_svd)
	reshape and repopulate the linear constraint arrays More...
void	active_view (short view2)
	sets the active view based on higher level context
void	inactive_view (short view2)
	sets the inactive view based on higher level context
const SharedVariablesData &	shared_data () const
	return sharedVarsData
SharedVariablesData &	shared_data ()
	return sharedVarsData
bool	is_null () const
	function to check constraintsRep (does this envelope contain a letter)

Additional Inherited Members
Protected Member Functions inherited from Constraints
	Constraints (BaseConstructor, const ProblemDescDB &problem_db, const SharedVariablesData &svd)
	constructor initializes the base class part of letter classes (BaseConstructor overloading avoids infinite recursion in the derived class constructors - Coplien, p. 139) More...
	Constraints (BaseConstructor, const SharedVariablesData &svd)
	constructor initializes the base class part of letter classes (BaseConstructor overloading avoids infinite recursion in the derived class constructors - Coplien, p. 139) More...
void	build_views ()
	construct active/inactive views of all variables arrays
void	build_active_views ()
	construct active views of all variables bounds arrays
void	build_inactive_views ()
	construct inactive views of all variables bounds arrays
void	manage_linear_constraints (const ProblemDescDB &problem_db)
	perform checks on user input, convert linear constraint coefficient input to matrices, and assign defaults More...
Protected Attributes inherited from Constraints
SharedVariablesData	sharedVarsData
	configuration data shared from a Variables instance
RealVector	allContinuousLowerBnds
	a continuous lower bounds array combining continuous design, uncertain, and continuous state variable types (all view).
RealVector	allContinuousUpperBnds
	a continuous upper bounds array combining continuous design, uncertain, and continuous state variable types (all view).
IntVector	allDiscreteIntLowerBnds
	a discrete lower bounds array combining discrete design and discrete state variable types (all view).
IntVector	allDiscreteIntUpperBnds
	a discrete upper bounds array combining discrete design and discrete state variable types (all view).
RealVector	allDiscreteRealLowerBnds
	a discrete lower bounds array combining discrete design and discrete state variable types (all view).
RealVector	allDiscreteRealUpperBnds
	a discrete upper bounds array combining discrete design and discrete state variable types (all view).
size_t	numNonlinearIneqCons
	number of nonlinear inequality constraints
size_t	numNonlinearEqCons
	number of nonlinear equality constraints
RealVector	nonlinearIneqConLowerBnds
	nonlinear inequality constraint lower bounds
RealVector	nonlinearIneqConUpperBnds
	nonlinear inequality constraint upper bounds
RealVector	nonlinearEqConTargets
	nonlinear equality constraint targets
size_t	numLinearIneqCons
	number of linear inequality constraints
size_t	numLinearEqCons
	number of linear equality constraints
RealMatrix	linearIneqConCoeffs
	linear inequality constraint coefficients
RealMatrix	linearEqConCoeffs
	linear equality constraint coefficients
RealVector	linearIneqConLowerBnds
	linear inequality constraint lower bounds
RealVector	linearIneqConUpperBnds
	linear inequality constraint upper bounds
RealVector	linearEqConTargets
	linear equality constraint targets
RealVector	continuousLowerBnds
	the active continuous lower bounds array view
RealVector	continuousUpperBnds
	the active continuous upper bounds array view
IntVector	discreteIntLowerBnds
	the active discrete lower bounds array view
IntVector	discreteIntUpperBnds
	the active discrete upper bounds array view
RealVector	discreteRealLowerBnds
	the active discrete lower bounds array view
RealVector	discreteRealUpperBnds
	the active discrete upper bounds array view
RealVector	inactiveContinuousLowerBnds
	the inactive continuous lower bounds array view
RealVector	inactiveContinuousUpperBnds
	the inactive continuous upper bounds array view
IntVector	inactiveDiscreteIntLowerBnds
	the inactive discrete lower bounds array view
IntVector	inactiveDiscreteIntUpperBnds
	the inactive discrete upper bounds array view
RealVector	inactiveDiscreteRealLowerBnds
	the inactive discrete lower bounds array view
RealVector	inactiveDiscreteRealUpperBnds
	the inactive discrete upper bounds array view

Detailed Description

Derived class within the Constraints hierarchy which employs relaxation of discrete variables.

Derived variable constraints classes take different views of the design, uncertain, and state variable types and the continuous and discrete domain types. The RelaxedVarConstraints derived class combines continuous and discrete domain types through integer relaxation. The branch and bound method uses this approach (see Variables::get_variables(problem_db) for variables type selection; variables type is passed to the Constraints constructor in Model).

Constructor & Destructor Documentation

RelaxedVarConstraints()

RelaxedVarConstraints	(	const ProblemDescDB &	problem_db,
		const SharedVariablesData &	svd
	)

standard constructor

In this class, a relaxed data approach is used in which continuous and discrete arrays are combined into a single continuous array (integrality is relaxed; the converse of truncating reals is not currently supported but could be in the future if needed). Iterators which use this class include: BranchBndOptimizer.

References SharedVariablesData::all_relaxed_discrete_int(), SharedVariablesData::all_relaxed_discrete_real(), Constraints::allContinuousLowerBnds, Constraints::allContinuousUpperBnds, Constraints::allDiscreteIntLowerBnds, Constraints::allDiscreteIntUpperBnds, Constraints::allDiscreteRealLowerBnds, Constraints::allDiscreteRealUpperBnds, Dakota::copy_data_partial(), ProblemDescDB::get_iv(), ProblemDescDB::get_rv(), and Constraints::sharedVarsData.

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

• RelaxedVarConstraints.hpp
• RelaxedVarConstraints.cpp