14 #include <OpenMS/OpenMSConfig.h>
15 #include <OpenMS/config.h>
25 #ifndef OPENMS_HAS_COINOR
26 #ifndef GLP_PROB_DEFINED
27 #define GLP_PROB_DEFINED
30 #if OPENMS_GLPK_VERSION_MAJOR == 4 && OPENMS_GLPK_VERSION_MINOR < 48
33 double _opaque_prob[100];
83 message_level(3), branching_tech(4), backtrack_tech(3),
84 preprocessing_tech(2), enable_feas_pump_heuristic(true), enable_gmi_cuts(true),
85 enable_mir_cuts(true), enable_cov_cuts(true), enable_clq_cuts(true), mip_gap(0.0),
86 time_limit((std::numeric_limits<
Int>::max)()), output_freq(5000), output_delay(10000), enable_presolve(true),
87 enable_binarization(true)
165 #ifdef OPENMS_HAS_COINOR
206 Int addRow(
const std::vector<Int>& row_indices,
const std::vector<double>& row_values,
const String& name);
223 Int addColumn(
const std::vector<Int>& column_indices,
const std::vector<double>& column_values,
const String& name);
237 Int addRow(
const std::vector<Int>& row_indices,
const std::vector<double>& row_values,
238 const String& name,
double lower_bound,
double upper_bound,
Type type);
250 Int addColumn(
const std::vector<Int>& column_indices,
const std::vector<double>& column_values,
const String& name,
double lower_bound,
double upper_bound,
Type type);
512 #ifdef OPENMS_HAS_COINOR
513 CoinModel * model_ =
nullptr;
514 std::vector<double> solution_;
516 glp_prob * lp_problem_ =
nullptr;
A wrapper class for linear programming (LP) solvers.
Definition: LPWrapper.h:66
Int addColumn()
Adds an empty column to the LP matrix.
void setObjective(Int index, double obj_value)
Set the objective coefficient for a column/variable.
void setColumnBounds(Int index, double lower_bound, double upper_bound, Type type)
Set column bounds.
Int solve(SolverParam &solver_param, const Size verbose_level=0)
solve problems, parameters like enabled heuristics can be given via solver_param
Type
Enumeration for variable/constraint bound types.
Definition: LPWrapper.h:114
@ UPPER_BOUND_ONLY
Only upper bound is specified.
Definition: LPWrapper.h:117
@ LOWER_BOUND_ONLY
Only lower bound is specified.
Definition: LPWrapper.h:116
@ DOUBLE_BOUNDED
Both lower and upper bounds are specified.
Definition: LPWrapper.h:118
double getObjective(Int index)
Get the objective coefficient for a column/variable.
double getElement(Int row_index, Int column_index)
Get the value of a matrix element at the specified position.
void setObjectiveSense(Sense sense)
Set objective direction.
void readProblem(const String &filename, const String &format)
Read LP from file.
void writeProblem(const String &filename, const WriteFormat format) const
Write LP formulation to a file.
Int getRowIndex(const String &name)
Find the index of a row by its name.
double getObjectiveValue()
Get the objective function value of the solution.
Sense getObjectiveSense()
Get the current objective direction.
String getRowName(Int index)
Get the name of a row.
Int getNumberOfNonZeroEntriesInRow(Int idx)
Get the number of non-zero entries in a specific row.
void setElement(Int row_index, Int column_index, double value)
Set the value of a matrix element at the specified position.
void setRowName(Int index, const String &name)
Set the name of a row.
void deleteRow(Int index)
Delete the row at the specified index.
VariableType getColumnType(Int index)
Get column/variable type.
SOLVER getSolver() const
Get the currently active solver backend.
SolverStatus
Enumeration for solver status after solving an LP problem.
Definition: LPWrapper.h:176
String getColumnName(Int index)
Get the name of a column.
void setRowBounds(Int index, double lower_bound, double upper_bound, Type type)
Set row bounds.
Int addColumn(const std::vector< Int > &column_indices, const std::vector< double > &column_values, const String &name, double lower_bound, double upper_bound, Type type)
Adds a column with boundaries to the LP matrix, returns index.
Int addRow(const std::vector< Int > &row_indices, const std::vector< double > &row_values, const String &name, double lower_bound, double upper_bound, Type type)
Adds a row with boundaries to the LP matrix, returns index.
Int getNumberOfColumns()
Get the number of columns/variables in the LP problem.
double getRowUpperBound(Int index)
Get the upper bound of a row.
LPWrapper()
Default constructor.
void setColumnType(Int index, VariableType type)
Set column/variable type.
Int getColumnIndex(const String &name)
Find the index of a column by its name.
SolverStatus getStatus()
Get solution status.
Int addRow(const std::vector< Int > &row_indices, const std::vector< double > &row_values, const String &name)
Adds a row to the LP matrix.
SOLVER
Enumeration for available LP solvers.
Definition: LPWrapper.h:163
SOLVER solver_
Currently active solver backend.
Definition: LPWrapper.h:519
void getMatrixRow(Int idx, std::vector< Int > &indexes)
Get the indices of non-zero entries in a specific row.
double getRowLowerBound(Int index)
Get the lower bound of a row.
Int getNumberOfRows()
Get the number of rows/constraints in the LP problem.
Sense
Enumeration for optimization direction.
Definition: LPWrapper.h:140
VariableType
Enumeration for variable types in the LP problem.
Definition: LPWrapper.h:128
@ INTEGER
Integer variable (can only take integer values within bounds)
Definition: LPWrapper.h:130
double getColumnUpperBound(Int index)
Get the upper bound of a column.
double getColumnLowerBound(Int index)
Get the lower bound of a column.
Int addColumn(const std::vector< Int > &column_indices, const std::vector< double > &column_values, const String &name)
Adds a column to the LP matrix.
double getColumnValue(Int index)
Get the value of a variable in the solution.
void setColumnName(Int index, const String &name)
Set the name of a column.
virtual ~LPWrapper()
Virtual destructor.
WriteFormat
Enumeration for LP problem file formats.
Definition: LPWrapper.h:151
@ FORMAT_MPS
MPS format (industry standard)
Definition: LPWrapper.h:153
A more convenient string class.
Definition: String.h:34
int Int
Signed integer type.
Definition: Types.h:72
size_t Size
Size type e.g. used as variable which can hold result of size()
Definition: Types.h:97
Main OpenMS namespace.
Definition: openswathalgo/include/OpenMS/OPENSWATHALGO/DATAACCESS/ISpectrumAccess.h:19
Struct that holds the parameters of the LP solver.
Definition: LPWrapper.h:78
Int backtrack_tech
Backtracking technique for MIP problems.
Definition: LPWrapper.h:93
double mip_gap
Relative gap tolerance for MIP problems.
Definition: LPWrapper.h:100
Int branching_tech
Branching technique for MIP problems.
Definition: LPWrapper.h:92
bool enable_binarization
Enable binarization (only with presolve)
Definition: LPWrapper.h:105
bool enable_cov_cuts
Enable cover cuts.
Definition: LPWrapper.h:98
Int time_limit
Time limit in milliseconds.
Definition: LPWrapper.h:101
bool enable_gmi_cuts
Enable Gomory mixed-integer cuts.
Definition: LPWrapper.h:96
Int message_level
Controls verbosity of solver output (0-3)
Definition: LPWrapper.h:91
Int output_delay
Output delay in milliseconds.
Definition: LPWrapper.h:103
bool enable_presolve
Enable presolve techniques.
Definition: LPWrapper.h:104
bool enable_mir_cuts
Enable mixed-integer rounding cuts.
Definition: LPWrapper.h:97
SolverParam()
Default constructor that initializes all parameters with reasonable defaults.
Definition: LPWrapper.h:82
Int output_freq
Output frequency in milliseconds.
Definition: LPWrapper.h:102
bool enable_feas_pump_heuristic
Enable feasibility pump heuristic.
Definition: LPWrapper.h:95
Int preprocessing_tech
Preprocessing technique.
Definition: LPWrapper.h:94
bool enable_clq_cuts
Enable clique cuts.
Definition: LPWrapper.h:99