BonminProblem Class Reference

#include <OSBonminSolver.h>

Collaboration diagram for BonminProblem:
Collaboration graph
[legend]

List of all members.

Public Member Functions

 BonminProblem (OSInstance *osinstance_, OSOption *osoption_)
 the BonminProblemclass constructor
virtual ~BonminProblem ()
 the BonminProblem class destructor
virtual bool get_scaling_parameters (Ipopt::Number &obj_scaling, bool &use_x_scaling, Ipopt::Index n, Ipopt::Number *x_scaling, bool &use_g_scaling, Ipopt::Index m, Ipopt::Number *g_scaling)
virtual const SosInfo * sosConstraints () const
virtual const BranchingInfo * branchingInfo () const
void printSolutionAtEndOfAlgorithm ()
Overloaded functions specific to a TMINLP.

now for some pure Bonmin methods



virtual bool get_variables_types (Ipopt::Index n, VariableType *var_types)
 Pass the type of the variables (INTEGER, BINARY, CONTINUOUS) to the optimizer.
virtual bool get_variables_linearity (Ipopt::Index n, Ipopt::TNLP::LinearityType *var_types)
 Pass info about linear and nonlinear variables.
virtual bool get_constraints_linearity (Ipopt::Index m, Ipopt::TNLP::LinearityType *const_types)
 Pass the type of the constraints (LINEAR, NON_LINEAR) to the optimizer.
Overloaded functions defining a TNLP.

This group of function implement the various elements needed to define and solve a TNLP.

They are the same as those in a standard Ipopt NLP problem



virtual bool get_nlp_info (Ipopt::Index &n, Ipopt::Index &m, Ipopt::Index &nnz_jac_g, Ipopt::Index &nnz_h_lag, Ipopt::TNLP::IndexStyleEnum &index_style)
 Method to pass the main dimensions of the problem to Ipopt.
virtual bool get_bounds_info (Ipopt::Index n, Ipopt::Number *x_l, Ipopt::Number *x_u, Ipopt::Index m, Ipopt::Number *g_l, Ipopt::Number *g_u)
 Bonmin specific methods for defining the nlp problem.
virtual bool get_starting_point (Ipopt::Index n, bool init_x, Ipopt::Number *x, bool init_z, Ipopt::Number *z_L, Ipopt::Number *z_U, Ipopt::Index m, bool init_lambda, Ipopt::Number *lambda)
 Method to return the starting point for the algorithm.
virtual bool eval_f (Ipopt::Index n, const Ipopt::Number *x, bool new_x, Ipopt::Number &obj_value)
 Method to return the objective value.
virtual bool eval_grad_f (Ipopt::Index n, const Ipopt::Number *x, bool new_x, Ipopt::Number *grad_f)
 Method to return the gradient of the objective.
virtual bool eval_g (Ipopt::Index n, const Ipopt::Number *x, bool new_x, Ipopt::Index m, Ipopt::Number *g)
 Method to return the constraint residuals.
virtual bool eval_jac_g (Ipopt::Index n, const Ipopt::Number *x, bool new_x, Ipopt::Index m, Ipopt::Index nele_jac, Ipopt::Index *iRow, Ipopt::Index *jCol, Ipopt::Number *values)
 Method to return: 1) The structure of the jacobian (if "values" is NULL) 2) The values of the jacobian (if "values" is not NULL).
virtual bool eval_h (Ipopt::Index n, const Ipopt::Number *x, bool new_x, Ipopt::Number obj_factor, Ipopt::Index m, const Ipopt::Number *lambda, bool new_lambda, Ipopt::Index nele_hess, Ipopt::Index *iRow, Ipopt::Index *jCol, Ipopt::Number *values)
 Method to return: 1) The structure of the hessian of the lagrangian (if "values" is NULL) 2) The values of the hessian of the lagrangian (if "values" is not NULL).
Solution Methods



virtual void finalize_solution (Bonmin::TMINLP::SolverReturn status_, Ipopt::Index n, const Ipopt::Number *x, Ipopt::Number obj_value)
 Method called by Ipopt at the end of optimization.

Public Attributes

OSInstanceosinstance
OSOptionosoption
Bonmin::TMINLP::SolverReturn status

Private Attributes

bool printSol_
std::string bonminErrorMsg

Detailed Description

Definition at line 53 of file OSBonminSolver.h.


Constructor & Destructor Documentation

BonminProblem::BonminProblem ( OSInstance osinstance_,
OSOption osoption_ 
)

the BonminProblemclass constructor

Definition at line 1144 of file OSBonminSolver.cpp.

BonminProblem::~BonminProblem (  )  [virtual]

the BonminProblem class destructor

Definition at line 1151 of file OSBonminSolver.cpp.


Member Function Documentation

virtual bool BonminProblem::get_variables_types ( Ipopt::Index  n,
VariableType *  var_types 
) [virtual]

Pass the type of the variables (INTEGER, BINARY, CONTINUOUS) to the optimizer.

Parameters:
n size of var_types (has to be equal to the number of variables in the problem)
var_types types of the variables (has to be filled by function).
virtual bool BonminProblem::get_variables_linearity ( Ipopt::Index  n,
Ipopt::TNLP::LinearityType *  var_types 
) [virtual]

Pass info about linear and nonlinear variables.

virtual bool BonminProblem::get_constraints_linearity ( Ipopt::Index  m,
Ipopt::TNLP::LinearityType *  const_types 
) [virtual]

Pass the type of the constraints (LINEAR, NON_LINEAR) to the optimizer.

Parameters:
m size of const_types (has to be equal to the number of constraints in the problem)
const_types types of the constraints (has to be filled by function).
virtual bool BonminProblem::get_nlp_info ( Ipopt::Index &  n,
Ipopt::Index &  m,
Ipopt::Index &  nnz_jac_g,
Ipopt::Index &  nnz_h_lag,
Ipopt::TNLP::IndexStyleEnum &  index_style 
) [virtual]

Method to pass the main dimensions of the problem to Ipopt.

Parameters:
n number of variables in problem.
m number of constraints.
nnz_jac_g number of nonzeroes in Jacobian of constraints system.
nnz_h_lag number of nonzeroes in Hessian of the Lagrangean.
index_style indicate wether arrays are numbered from 0 (C-style) or from 1 (Fortran).
Returns:
true in case of success.
virtual bool BonminProblem::get_bounds_info ( Ipopt::Index  n,
Ipopt::Number *  x_l,
Ipopt::Number *  x_u,
Ipopt::Index  m,
Ipopt::Number *  g_l,
Ipopt::Number *  g_u 
) [virtual]

Bonmin specific methods for defining the nlp problem.

Method to return the bounds for my problem

virtual bool BonminProblem::get_starting_point ( Ipopt::Index  n,
bool  init_x,
Ipopt::Number *  x,
bool  init_z,
Ipopt::Number *  z_L,
Ipopt::Number *  z_U,
Ipopt::Index  m,
bool  init_lambda,
Ipopt::Number *  lambda 
) [virtual]

Method to return the starting point for the algorithm.

virtual bool BonminProblem::eval_f ( Ipopt::Index  n,
const Ipopt::Number *  x,
bool  new_x,
Ipopt::Number &  obj_value 
) [virtual]

Method to return the objective value.

virtual bool BonminProblem::eval_grad_f ( Ipopt::Index  n,
const Ipopt::Number *  x,
bool  new_x,
Ipopt::Number *  grad_f 
) [virtual]

Method to return the gradient of the objective.

virtual bool BonminProblem::eval_g ( Ipopt::Index  n,
const Ipopt::Number *  x,
bool  new_x,
Ipopt::Index  m,
Ipopt::Number *  g 
) [virtual]

Method to return the constraint residuals.

virtual bool BonminProblem::eval_jac_g ( Ipopt::Index  n,
const Ipopt::Number *  x,
bool  new_x,
Ipopt::Index  m,
Ipopt::Index  nele_jac,
Ipopt::Index *  iRow,
Ipopt::Index *  jCol,
Ipopt::Number *  values 
) [virtual]

Method to return: 1) The structure of the jacobian (if "values" is NULL) 2) The values of the jacobian (if "values" is not NULL).

virtual bool BonminProblem::eval_h ( Ipopt::Index  n,
const Ipopt::Number *  x,
bool  new_x,
Ipopt::Number  obj_factor,
Ipopt::Index  m,
const Ipopt::Number *  lambda,
bool  new_lambda,
Ipopt::Index  nele_hess,
Ipopt::Index *  iRow,
Ipopt::Index *  jCol,
Ipopt::Number *  values 
) [virtual]

Method to return: 1) The structure of the hessian of the lagrangian (if "values" is NULL) 2) The values of the hessian of the lagrangian (if "values" is not NULL).

virtual bool BonminProblem::get_scaling_parameters ( Ipopt::Number &  obj_scaling,
bool &  use_x_scaling,
Ipopt::Index  n,
Ipopt::Number *  x_scaling,
bool &  use_g_scaling,
Ipopt::Index  m,
Ipopt::Number *  g_scaling 
) [virtual]
virtual void BonminProblem::finalize_solution ( Bonmin::TMINLP::SolverReturn  status_,
Ipopt::Index  n,
const Ipopt::Number *  x,
Ipopt::Number  obj_value 
) [virtual]

Method called by Ipopt at the end of optimization.

virtual const SosInfo* BonminProblem::sosConstraints (  )  const [inline, virtual]

Definition at line 166 of file OSBonminSolver.h.

virtual const BranchingInfo* BonminProblem::branchingInfo (  )  const [inline, virtual]

Definition at line 170 of file OSBonminSolver.h.

void BonminProblem::printSolutionAtEndOfAlgorithm (  )  [inline]

Definition at line 175 of file OSBonminSolver.h.


Member Data Documentation

Definition at line 66 of file OSBonminSolver.h.

Definition at line 68 of file OSBonminSolver.h.

Bonmin::TMINLP::SolverReturn BonminProblem::status

Definition at line 70 of file OSBonminSolver.h.

bool BonminProblem::printSol_ [private]

Definition at line 185 of file OSBonminSolver.h.

std::string BonminProblem::bonminErrorMsg [private]

Definition at line 205 of file OSBonminSolver.h.


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

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