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| MockProblem (int year) |
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| Problem (SolverAbstract::Ptr solver_abstract) |
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unsigned int | McYear () const |
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unsigned int | Week () const |
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int | get_number_of_instances () override |
| Returns number of instances of solver currently in memory.
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std::string | get_solver_name () const override |
| Returns the solver used.
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void | init () override |
| Initializes a problem.
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void | free () override |
| Frees all the datas contained in the Solver environment.
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void | write_prob_mps (const std::filesystem::path &filename) override |
| writes an optimization problem in a MPS file
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void | write_prob_lp (const std::filesystem::path &filename) override |
| writes an optimization problem in a LP file
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void | read_prob_mps (const std::filesystem::path &filename) override |
| reads an optimization problem contained in a MPS file
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void | read_prob_lp (const std::filesystem::path &filename) override |
| reads an optimization problem contained in a MPS file
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void | copy_prob (Ptr fictif_solv) override |
| copy an existing problem
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int | get_ncols () const override |
| returns number of columns of the problem
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int | get_nrows () const override |
| returns number of rows of the problem
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int | get_nelems () const override |
| returns number of non zeros elements in the matrix, excluding objective
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int | get_n_integer_vars () const override |
| returns number of integer variables in the problem
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void | get_obj (double *obj, int first, int last) const override |
| returns the objective function coefficients for the columns in a given range
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void | set_obj_to_zero () override |
| Set the objective function coefficients to zero.
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void | set_obj (const double *obj, int first, int last) override |
| Set the objective function coefficients for the columns in a given range.
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void | get_rows (int *mstart, int *mclind, double *dmatval, int size, int *nels, int first, int last) const override |
| get coefficients of rows from index first to last
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void | get_row_type (char *qrtype, int first, int last) const override |
| Returns the row types for the rows in a given range.
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void | get_rhs (double *rhs, int first, int last) const override |
| Returns the right-hand sides of the rows in a given range.
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void | get_rhs_range (double *range, int first, int last) const override |
| Returns the right hand side range values for the rows in a given range.
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void | get_col_type (char *coltype, int first, int last) const override |
| Returns the column types for the columns in a given range.
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void | get_lb (double *lb, int fisrt, int last) const override |
| Returns the lower bounds for variables in a given range.
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void | get_ub (double *ub, int fisrt, int last) const override |
| Returns the upper bounds for variables in a given range.
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int | get_row_index (const std::string &name) override |
| Returns the index of row named "name".
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int | get_col_index (const std::string &name) override |
| Returns the index of column named "name".
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std::vector< std::string > | get_row_names (int first, int last) override |
| Returns the names of row from index first to last cannot be declared as const because of some solver methods.
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std::vector< std::string > | get_row_names () override |
| Returns the names of rows.
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std::vector< std::string > | get_col_names (int first, int last) override |
| Returns the names of columns from index first to last cannot be declared as const because of some solver methods.
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std::vector< std::string > | get_col_names () override |
| Returns the names of columns.
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void | del_rows (int first, int last) override |
| Deletes rows between index first and last.
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void | add_rows (int newrows, int newnz, const char *qrtype, const double *rhs, const double *range, const int *mstart, const int *mclind, const double *dmatval, const std::vector< std::string > &names) override |
| Adds rows to the problem.
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void | add_cols (int newcol, int newnz, const double *objx, const int *mstart, const int *mrwind, const double *dmatval, const double *bdl, const double *bdu, const std::vector< std::string > &names) override |
| Adds new columns to the problem.
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void | add_name (int type, const char *cnames, int indice) override |
| Adds a name to a row or a column.
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void | add_names (int type, const std::vector< std::string > &cnames, int first, int end) override |
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void | chg_obj (const std::vector< int > &mindex, const std::vector< double > &obj) override |
| Change coefficients in objective function.
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void | chg_obj_direction (const bool minimize) override |
| Change the problem's objective function sense to minimize or maximize.
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void | chg_bounds (const std::vector< int > &mindex, const std::vector< char > &qbtype, const std::vector< double > &bnd) override |
| Change bounds of some variables.
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void | chg_col_type (const std::vector< int > &mindex, const std::vector< char > &qctype) override |
| Change type of some columns.
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void | chg_rhs (int id_row, double val) override |
| Change rhs of a row.
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void | chg_coef (int id_row, int id_col, double val) override |
| Change a coefficient in the matrix.
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void | chg_row_name (int id_row, const std::string &name) override |
| Change the name of a constraint.
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void | chg_col_name (int id_col, const std::string &name) override |
| Change the name of a variable.
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int | solve_lp () override |
| Solves a problem as LP.
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int | solve_mip () override |
| Solves a problem as MIP.
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void | get_basis (int *rstatus, int *cstatus) const override |
| Returns the current basis into the user’s data arrays.
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double | get_mip_value () const override |
| Get the optimal value of a MIP problem (available after method "solve_mip")
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double | get_lp_value () const override |
| Get the optimal value of a LP problem (available after method "solve_lp" )
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int | get_splex_num_of_ite_last () const override |
| Get the number of simplex iterations done in the last resolution of the problem.
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void | get_lp_sol (double *primals, double *duals, double *reduced_costs) const override |
| Get LP solution of a problem (available after method "solve_lp")
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void | get_mip_sol (double *primals) override |
| Get MIP solution of a problem (available after method "solve_mip")
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void | set_output_log_level (int loglevel) override |
| Sets log level of the solver.
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void | set_algorithm (const std::string &algo) override |
| Sets algorithm used by solver to solve LP's.
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void | set_threads (int n_threads) override |
| Sets the maximum number of threads used to perform optimization.
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void | set_optimality_gap (double gap) override |
| Sets the optimality gap.
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void | set_simplex_iter (int iter) override |
| Sets the maximum number of simplex iterations the solver can perform.
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void | write_basis (const std::filesystem::path &filename) override |
| Writes the current basis to a file for later input into the optimizer.
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void | read_basis (const std::filesystem::path &filename) override |
| Instructs the optimizer to read in a previously saved basis from a file.
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void | save_prob (const std::filesystem::path &filename) override |
| write an optimisation problem in a file
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void | restore_prob (const std::filesystem::path &filename) override |
| read an optimisation problem from a file
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| SolverAbstract () |
| constructor of SolverAbstract class : does nothing
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| SolverAbstract (const std::string &name, const SolverAbstract::Ptr toCopy) |
| Copy constructor, copy the problem "toCopy" in memory and name it "name" if possible.
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virtual | ~SolverAbstract () |
| destructor of SolverAbstract class : does nothing
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std::list< std::ostream * > & | get_stream () |
| returns the list of streams used by the solver instance
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void | add_stream (std::ostream &stream) |
| add a stream to the list of streams used by the solver instance
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void | set_fp (FILE *fp) |
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void | zero_status_check (int status, const std::string &action_failed, const std::string &log_location) const |
| Check if a status code is different to 0, throw InvalidStatusException if it occurs.
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bool | operator== (const SolverAbstract &) const |
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