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OsiSolverLink Class Reference

This is to allow the user to replace initialSolve and resolve This version changes coefficients. More...

#include <CbcLinked.hpp>

+ Inheritance diagram for OsiSolverLink:
+ Collaboration diagram for OsiSolverLink:

Public Member Functions

Solve methods
virtual void initialSolve ()
 Solve initial LP relaxation. More...
 
virtual void resolve ()
 Resolve an LP relaxation after problem modification. More...
 
virtual int fathom (bool allFixed)
 Problem specific Returns -1 if node fathomed and no solution 0 if did nothing 1 if node fathomed and solution allFixed is true if all LinkedBound variables are fixed. More...
 
double * nonlinearSLP (int numberPasses, double deltaTolerance)
 Solves nonlinear problem from CoinModel using SLP - may be used as crash for other algorithms when number of iterations small. More...
 
double linearizedBAB (CglStored *cut)
 Solve linearized quadratic objective branch and bound. More...
 
double * heuristicSolution (int numberPasses, double deltaTolerance, int mode)
 Solves nonlinear problem from CoinModel using SLP - and then tries to get heuristic solution Returns solution array mode - 0 just get continuous 1 round and try normal bab 2 use defaultBound_ to bound integer variables near current solution. More...
 
int doAOCuts (CglTemporary *cutGen, const double *solution, const double *solution2)
 Do OA cuts. More...
 
Constructors and destructors
 OsiSolverLink ()
 Default Constructor. More...
 
 OsiSolverLink (CoinModel &modelObject)
 This creates from a coinModel object. More...
 
void load (CoinModel &modelObject, bool tightenBounds=false, int logLevel=1)
 
virtual OsiSolverInterfaceclone (bool copyData=true) const
 Clone. More...
 
 OsiSolverLink (const OsiSolverLink &)
 Copy constructor. More...
 
OsiSolverLinkoperator= (const OsiSolverLink &rhs)
 Assignment operator. More...
 
virtual ~OsiSolverLink ()
 Destructor. More...
 
Sets and Gets
void addBoundModifier (bool upperBoundAffected, bool useUpperBound, int whichVariable, int whichVariableAffected, double multiplier=1.0)
 Add a bound modifier. More...
 
int updateCoefficients (ClpSimplex *solver, CoinPackedMatrix *matrix)
 Update coefficients - returns number updated if in updating mode. More...
 
void analyzeObjects ()
 Analyze constraints to see which are convex (quadratic) More...
 
void addTighterConstraints ()
 Add reformulated bilinear constraints. More...
 
double bestObjectiveValue () const
 Objective value of best solution found internally. More...
 
void setBestObjectiveValue (double value)
 Set objective value of best solution found internally. More...
 
const double * bestSolution () const
 Best solution found internally. More...
 
void setBestSolution (const double *solution, int numberColumns)
 Set best solution found internally. More...
 
void setSpecialOptions2 (int value)
 Set special options. More...
 
void sayConvex (bool convex)
 Say convex (should work it out) - if convex false then strictly concave. More...
 
int specialOptions2 () const
 Get special options. More...
 
CoinPackedMatrixcleanMatrix () const
 Clean copy of matrix So we can add rows. More...
 
CoinPackedMatrixoriginalRowCopy () const
 Row copy of matrix Just genuine columns and rows Linear part. More...
 
ClpSimplexquadraticModel () const
 Copy of quadratic model if one. More...
 
CoinPackedMatrixquadraticRow (int rowNumber, double *linear) const
 Gets correct form for a quadratic row - user to delete. More...
 
double defaultMeshSize () const
 Default meshSize. More...
 
void setDefaultMeshSize (double value)
 
double defaultBound () const
 Default maximumbound. More...
 
void setDefaultBound (double value)
 
void setIntegerPriority (int value)
 Set integer priority. More...
 
int integerPriority () const
 Get integer priority. More...
 
int objectiveVariable () const
 Objective transfer variable if one. More...
 
void setBiLinearPriority (int value)
 Set biLinear priority. More...
 
int biLinearPriority () const
 Get biLinear priority. More...
 
const CoinModelcoinModel () const
 Return CoinModel. More...
 
void setBiLinearPriorities (int value, double meshSize=1.0)
 Set all biLinear priorities on x-x variables. More...
 
void setBranchingStrategyOnVariables (int strategyValue, int priorityValue=-1, int mode=7)
 Set options and priority on all or some biLinear variables 1 - on I-I 2 - on I-x 4 - on x-x or combinations. More...
 
void setMeshSizes (double value)
 Set all mesh sizes on x-x variables. More...
 
void setFixedPriority (int priorityValue)
 Two tier integer problem where when set of variables with priority less than this are fixed the problem becomes an easier integer problem. More...
 
- Public Member Functions inherited from CbcOsiSolver
 CbcOsiSolver ()
 Default Constructor. More...
 
 CbcOsiSolver (const CbcOsiSolver &)
 Copy constructor. More...
 
CbcOsiSolveroperator= (const CbcOsiSolver &rhs)
 Assignment operator. More...
 
virtual ~CbcOsiSolver ()
 Destructor. More...
 
void setCbcModel (CbcModel *model)
 Set Cbc Model. More...
 
CbcModelcbcModel () const
 Return Cbc Model. More...
 
- Public Member Functions inherited from OsiClpSolverInterface
virtual void setObjSense (double s)
 Set objective function sense (1 for min (default), -1 for max,) More...
 
virtual void setColSolution (const double *colsol)
 Set the primal solution column values. More...
 
virtual void setRowPrice (const double *rowprice)
 Set dual solution vector. More...
 
virtual void resolveGub (int needed)
 Resolve an LP relaxation after problem modification (try GUB) More...
 
virtual void branchAndBound ()
 Invoke solver's built-in enumeration algorithm. More...
 
void crossover (int options, int basis)
 Solve when primal column and dual row solutions are near-optimal options - 0 no presolve (use primal and dual) 1 presolve (just use primal) 2 no presolve (just use primal) basis - 0 use all slack basis 1 try and put some in basis. More...
 
virtual int canDoSimplexInterface () const
 Simplex API capability. More...
 
virtual void enableFactorization () const
 Enables simplex mode 1 (tableau access) More...
 
virtual void disableFactorization () const
 Undo any setting changes made by enableFactorization. More...
 
virtual bool basisIsAvailable () const
 Returns true if a basis is available AND problem is optimal. More...
 
virtual void getBasisStatus (int *cstat, int *rstat) const
 The following two methods may be replaced by the methods of OsiSolverInterface using OsiWarmStartBasis if: More...
 
virtual int setBasisStatus (const int *cstat, const int *rstat)
 Set the status of structural/artificial variables and factorize, update solution etc. More...
 
virtual void getReducedGradient (double *columnReducedCosts, double *duals, const double *c) const
 Get the reduced gradient for the cost vector c. More...
 
virtual void getBInvARow (int row, double *z, double *slack=NULL) const
 Get a row of the tableau (slack part in slack if not NULL) More...
 
virtual void getBInvARow (int row, CoinIndexedVector *z, CoinIndexedVector *slack=NULL, bool keepScaled=false) const
 Get a row of the tableau (slack part in slack if not NULL) If keepScaled is true then scale factors not applied after so user has to use coding similar to what is in this method. More...
 
virtual void getBInvRow (int row, double *z) const
 Get a row of the basis inverse. More...
 
virtual void getBInvACol (int col, double *vec) const
 Get a column of the tableau. More...
 
virtual void getBInvACol (int col, CoinIndexedVector *vec) const
 Get a column of the tableau. More...
 
virtual void getBInvACol (CoinIndexedVector *vec) const
 Update (i.e. More...
 
virtual void getBInvCol (int col, double *vec) const
 Get a column of the basis inverse. More...
 
virtual void getBasics (int *index) const
 Get basic indices (order of indices corresponds to the order of elements in a vector retured by getBInvACol() and getBInvCol()). More...
 
virtual void enableSimplexInterface (bool doingPrimal)
 Enables simplex mode 2 (individual pivot control) More...
 
void copyEnabledSuff (OsiClpSolverInterface &rhs)
 Copy across enabled stuff from one solver to another. More...
 
virtual void disableSimplexInterface ()
 Undo setting changes made by enableSimplexInterface. More...
 
void copyEnabledStuff (ClpSimplex &rhs)
 Copy across enabled stuff from one solver to another. More...
 
virtual int pivot (int colIn, int colOut, int outStatus)
 Perform a pivot by substituting a colIn for colOut in the basis. More...
 
virtual int primalPivotResult (int colIn, int sign, int &colOut, int &outStatus, double &t, CoinPackedVector *dx)
 Obtain a result of the primal pivot Outputs: colOut – leaving column, outStatus – its status, t – step size, and, if dx!=NULL, *dx – primal ray direction. More...
 
virtual int dualPivotResult (int &colIn, int &sign, int colOut, int outStatus, double &t, CoinPackedVector *dx)
 Obtain a result of the dual pivot (similar to the previous method) Differences: entering variable and a sign of its change are now the outputs, the leaving variable and its statuts – the inputs If dx!=NULL, then *dx contains dual ray Return code: same. More...
 
bool setIntParam (OsiIntParam key, int value)
 Set an integer parameter. More...
 
bool setDblParam (OsiDblParam key, double value)
 Set a double parameter. More...
 
bool setStrParam (OsiStrParam key, const std::string &value)
 Set a string parameter. More...
 
bool getIntParam (OsiIntParam key, int &value) const
 Get an integer parameter. More...
 
bool getDblParam (OsiDblParam key, double &value) const
 Get a double parameter. More...
 
bool getStrParam (OsiStrParam key, std::string &value) const
 Get a string parameter. More...
 
virtual bool setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *otherInformation=NULL)
 Set a hint parameter. More...
 
virtual bool isAbandoned () const
 Are there a numerical difficulties? More...
 
virtual bool isProvenOptimal () const
 Is optimality proven? More...
 
virtual bool isProvenPrimalInfeasible () const
 Is primal infeasiblity proven? More...
 
virtual bool isProvenDualInfeasible () const
 Is dual infeasiblity proven? More...
 
virtual bool isPrimalObjectiveLimitReached () const
 Is the given primal objective limit reached? More...
 
virtual bool isDualObjectiveLimitReached () const
 Is the given dual objective limit reached? More...
 
virtual bool isIterationLimitReached () const
 Iteration limit reached? More...
 
virtual CoinWarmStartgetEmptyWarmStart () const
 Get an empty warm start object. More...
 
virtual CoinWarmStartgetWarmStart () const
 Get warmstarting information. More...
 
CoinWarmStartBasisgetPointerToWarmStart ()
 Get warmstarting information. More...
 
const CoinWarmStartBasisgetConstPointerToWarmStart () const
 Get warmstarting information. More...
 
virtual bool setWarmStart (const CoinWarmStart *warmstart)
 Set warmstarting information. More...
 
virtual CoinWarmStartgetPointerToWarmStart (bool &mustDelete)
 Get warm start information. More...
 
void setColumnStatus (int iColumn, ClpSimplex::Status status)
 Set column status in ClpSimplex and warmStart. More...
 
virtual void markHotStart ()
 Create a hotstart point of the optimization process. More...
 
virtual void solveFromHotStart ()
 Optimize starting from the hotstart. More...
 
virtual void unmarkHotStart ()
 Delete the snapshot. More...
 
int startFastDual (int options)
 Start faster dual - returns negative if problems 1 if infeasible, Options to pass to solver 1 - create external reduced costs for columns 2 - create external reduced costs for rows 4 - create external row activity (columns always done) Above only done if feasible When set resolve does less work. More...
 
void stopFastDual ()
 Stop fast dual. More...
 
void setStuff (double tolerance, double increment)
 Sets integer tolerance and increment. More...
 
OsiRowCutsmallModelCut (const double *originalLower, const double *originalUpper, int numberRowsAtContinuous, const int *whichGenerator, int typeCut=0)
 Return a conflict analysis cut from small model. More...
 
OsiRowCutmodelCut (const double *originalLower, const double *originalUpper, int numberRowsAtContinuous, const int *whichGenerator, int typeCut=0)
 Return a conflict analysis cut from model If type is 0 then genuine cut, if 1 then only partially processed. More...
 
virtual int getNumCols () const
 Get number of columns. More...
 
virtual int getNumRows () const
 Get number of rows. More...
 
virtual int getNumElements () const
 Get number of nonzero elements. More...
 
virtual std::string getRowName (int rowIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 Return name of row if one exists or Rnnnnnnn maxLen is currently ignored and only there to match the signature from the base class! More...
 
virtual std::string getColName (int colIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 Return name of column if one exists or Cnnnnnnn maxLen is currently ignored and only there to match the signature from the base class! More...
 
virtual const double * getColLower () const
 Get pointer to array[getNumCols()] of column lower bounds. More...
 
virtual const double * getColUpper () const
 Get pointer to array[getNumCols()] of column upper bounds. More...
 
virtual const char * getRowSense () const
 Get pointer to array[getNumRows()] of row constraint senses. More...
 
virtual const double * getRightHandSide () const
 Get pointer to array[getNumRows()] of rows right-hand sides. More...
 
virtual const double * getRowRange () const
 Get pointer to array[getNumRows()] of row ranges. More...
 
virtual const double * getRowLower () const
 Get pointer to array[getNumRows()] of row lower bounds. More...
 
virtual const double * getRowUpper () const
 Get pointer to array[getNumRows()] of row upper bounds. More...
 
virtual const double * getObjCoefficients () const
 Get pointer to array[getNumCols()] of objective function coefficients. More...
 
virtual double getObjSense () const
 Get objective function sense (1 for min (default), -1 for max) More...
 
virtual bool isContinuous (int colNumber) const
 Return true if column is continuous. More...
 
virtual bool isBinary (int colIndex) const
 Return true if variable is binary. More...
 
virtual bool isInteger (int colIndex) const
 Return true if column is integer. More...
 
virtual bool isIntegerNonBinary (int colIndex) const
 Return true if variable is general integer. More...
 
virtual bool isFreeBinary (int colIndex) const
 Return true if variable is binary and not fixed at either bound. More...
 
virtual const char * getColType (bool refresh=false) const
 Return array of column length 0 - continuous 1 - binary (may get fixed later) 2 - general integer (may get fixed later) More...
 
bool isOptionalInteger (int colIndex) const
 Return true if column is integer but does not have to be declared as such. More...
 
void setOptionalInteger (int index)
 Set the index-th variable to be an optional integer variable. More...
 
virtual const CoinPackedMatrixgetMatrixByRow () const
 Get pointer to row-wise copy of matrix. More...
 
virtual const CoinPackedMatrixgetMatrixByCol () const
 Get pointer to column-wise copy of matrix. More...
 
virtual CoinPackedMatrixgetMutableMatrixByCol () const
 Get pointer to mutable column-wise copy of matrix. More...
 
virtual double getInfinity () const
 Get solver's value for infinity. More...
 
virtual const double * getColSolution () const
 Get pointer to array[getNumCols()] of primal solution vector. More...
 
virtual const double * getRowPrice () const
 Get pointer to array[getNumRows()] of dual prices. More...
 
virtual const double * getReducedCost () const
 Get a pointer to array[getNumCols()] of reduced costs. More...
 
virtual const double * getRowActivity () const
 Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector. More...
 
virtual double getObjValue () const
 Get objective function value. More...
 
virtual int getIterationCount () const
 Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver. More...
 
virtual std::vector< double * > getDualRays (int maxNumRays, bool fullRay=false) const
 Get as many dual rays as the solver can provide. More...
 
virtual std::vector< double * > getPrimalRays (int maxNumRays) const
 Get as many primal rays as the solver can provide. More...
 
virtual void setObjCoeff (int elementIndex, double elementValue)
 Set an objective function coefficient. More...
 
virtual void setColLower (int elementIndex, double elementValue)
 Set a single column lower bound
Use -DBL_MAX for -infinity. More...
 
virtual void setColUpper (int elementIndex, double elementValue)
 Set a single column upper bound
Use DBL_MAX for infinity. More...
 
virtual void setColBounds (int elementIndex, double lower, double upper)
 Set a single column lower and upper bound. More...
 
virtual void setColSetBounds (const int *indexFirst, const int *indexLast, const double *boundList)
 Set the bounds on a number of columns simultaneously
The default implementation just invokes setColLower() and setColUpper() over and over again. More...
 
virtual void setRowLower (int elementIndex, double elementValue)
 Set a single row lower bound
Use -DBL_MAX for -infinity. More...
 
virtual void setRowUpper (int elementIndex, double elementValue)
 Set a single row upper bound
Use DBL_MAX for infinity. More...
 
virtual void setRowBounds (int elementIndex, double lower, double upper)
 Set a single row lower and upper bound. More...
 
virtual void setRowType (int index, char sense, double rightHandSide, double range)
 Set the type of a single row
More...
 
virtual void setRowSetBounds (const int *indexFirst, const int *indexLast, const double *boundList)
 Set the bounds on a number of rows simultaneously
The default implementation just invokes setRowLower() and setRowUpper() over and over again. More...
 
virtual void setRowSetTypes (const int *indexFirst, const int *indexLast, const char *senseList, const double *rhsList, const double *rangeList)
 Set the type of a number of rows simultaneously
The default implementation just invokes setRowType() over and over again. More...
 
virtual void setObjective (const double *array)
 Set the objective coefficients for all columns array [getNumCols()] is an array of values for the objective. More...
 
virtual void setColLower (const double *array)
 Set the lower bounds for all columns array [getNumCols()] is an array of values for the objective. More...
 
virtual void setColUpper (const double *array)
 Set the upper bounds for all columns array [getNumCols()] is an array of values for the objective. More...
 
virtual void setRowName (int rowIndex, std::string name)
 Set name of row. More...
 
virtual void setColName (int colIndex, std::string name)
 Set name of column. More...
 
virtual void setContinuous (int index)
 Set the index-th variable to be a continuous variable. More...
 
virtual void setInteger (int index)
 Set the index-th variable to be an integer variable. More...
 
virtual void setContinuous (const int *indices, int len)
 Set the variables listed in indices (which is of length len) to be continuous variables. More...
 
virtual void setInteger (const int *indices, int len)
 Set the variables listed in indices (which is of length len) to be integer variables. More...
 
int numberSOS () const
 Number of SOS sets. More...
 
const CoinSetsetInfo () const
 SOS set info. More...
 
virtual int findIntegersAndSOS (bool justCount)
 Identify integer variables and SOS and create corresponding objects. More...
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)
 Add a column (primal variable) to the problem. More...
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj, std::string name)
 Add a named column (primal variable) to the problem. More...
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj)
 Add a column (primal variable) to the problem. More...
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj, std::string name)
 Add a named column (primal variable) to the problem. More...
 
virtual void addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj)
 Add a set of columns (primal variables) to the problem. More...
 
virtual void addCols (const int numcols, const int *columnStarts, const int *rows, const double *elements, const double *collb, const double *colub, const double *obj)
 Add a set of columns (primal variables) to the problem. More...
 
virtual void deleteCols (const int num, const int *colIndices)
 Remove a set of columns (primal variables) from the problem. More...
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)
 Add a row (constraint) to the problem. More...
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub, std::string name)
 Add a named row (constraint) to the problem. More...
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)
 Add a row (constraint) to the problem. More...
 
virtual void addRow (int numberElements, const int *columns, const double *element, const double rowlb, const double rowub)
 Add a row (constraint) to the problem. More...
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng, std::string name)
 Add a named row (constraint) to the problem. More...
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const double *rowlb, const double *rowub)
 Add a set of rows (constraints) to the problem. More...
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const char *rowsen, const double *rowrhs, const double *rowrng)
 Add a set of rows (constraints) to the problem. More...
 
virtual void addRows (const int numrows, const int *rowStarts, const int *columns, const double *element, const double *rowlb, const double *rowub)
 Add a set of rows (constraints) to the problem. More...
 
void modifyCoefficient (int row, int column, double newElement, bool keepZero=false)
 
virtual void deleteRows (const int num, const int *rowIndices)
 Delete a set of rows (constraints) from the problem. More...
 
virtual void saveBaseModel ()
 If solver wants it can save a copy of "base" (continuous) model here. More...
 
virtual void restoreBaseModel (int numberRows)
 Strip off rows to get to this number of rows. More...
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut *cuts)
 Apply a collection of row cuts which are all effective. More...
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut **cuts)
 Apply a collection of row cuts which are all effective. More...
 
virtual ApplyCutsReturnCode applyCuts (const OsiCuts &cs, double effectivenessLb=0.0)
 Apply a collection of cuts. More...
 
virtual void loadProblem (const CoinPackedMatrix &matrix, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub)
 Load in an problem by copying the arguments (the constraints on the rows are given by lower and upper bounds). More...
 
virtual void assignProblem (CoinPackedMatrix *&matrix, double *&collb, double *&colub, double *&obj, double *&rowlb, double *&rowub)
 Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by lower and upper bounds). More...
 
virtual void loadProblem (const CoinPackedMatrix &matrix, const double *collb, const double *colub, const double *obj, const char *rowsen, const double *rowrhs, const double *rowrng)
 Load in an problem by copying the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...
 
virtual void assignProblem (CoinPackedMatrix *&matrix, double *&collb, double *&colub, double *&obj, char *&rowsen, double *&rowrhs, double *&rowrng)
 Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...
 
virtual void loadProblem (const ClpMatrixBase &matrix, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub)
 Just like the other loadProblem() methods except that the matrix is given as a ClpMatrixBase. More...
 
virtual void loadProblem (const int numcols, const int numrows, const CoinBigIndex *start, const int *index, const double *value, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub)
 Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps). More...
 
virtual void loadProblem (const int numcols, const int numrows, const CoinBigIndex *start, const int *index, const double *value, const double *collb, const double *colub, const double *obj, const char *rowsen, const double *rowrhs, const double *rowrng)
 Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps). More...
 
virtual int loadFromCoinModel (CoinModel &modelObject, bool keepSolution=false)
 This loads a model from a coinModel object - returns number of errors. More...
 
virtual int readMps (const char *filename, const char *extension="mps")
 Read an mps file from the given filename (defaults to Osi reader) - returns number of errors (see OsiMpsReader class) More...
 
int readMps (const char *filename, bool keepNames, bool allowErrors)
 Read an mps file from the given filename returns number of errors (see OsiMpsReader class) More...
 
virtual int readMps (const char *filename, const char *extension, int &numberSets, CoinSet **&sets)
 Read an mps file. More...
 
virtual void writeMps (const char *filename, const char *extension="mps", double objSense=0.0) const
 Write the problem into an mps file of the given filename. More...
 
virtual int writeMpsNative (const char *filename, const char **rowNames, const char **columnNames, int formatType=0, int numberAcross=2, double objSense=0.0) const
 Write the problem into an mps file of the given filename, names may be null. More...
 
virtual int readLp (const char *filename, const double epsilon=1e-5)
 Read file in LP format (with names) More...
 
virtual void writeLp (const char *filename, const char *extension="lp", double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
 Write the problem into an Lp file of the given filename. More...
 
virtual void writeLp (FILE *fp, double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
 Write the problem into the file pointed to by the parameter fp. More...
 
virtual void replaceMatrixOptional (const CoinPackedMatrix &matrix)
 I (JJF) am getting annoyed because I can't just replace a matrix. More...
 
virtual void replaceMatrix (const CoinPackedMatrix &matrix)
 And if it does matter (not used at present) More...
 
virtual void passInMessageHandler (CoinMessageHandler *handler)
 Pass in a message handler. More...
 
void newLanguage (CoinMessages::Language language)
 Set language. More...
 
void setLanguage (CoinMessages::Language language)
 
void setLogLevel (int value)
 Set log level (will also set underlying solver's log level) More...
 
void generateCpp (FILE *fp)
 Create C++ lines to get to current state. More...
 
ClpSimplexgetModelPtr () const
 Get pointer to Clp model. More...
 
ClpSimplexswapModelPtr (ClpSimplex *newModel)
 Set pointer to Clp model and return old. More...
 
unsigned int specialOptions () const
 Get special options. More...
 
void setSpecialOptions (unsigned int value)
 
int lastAlgorithm () const
 Last algorithm used , 1 = primal, 2 = dual other unknown. More...
 
void setLastAlgorithm (int value)
 Set last algorithm used , 1 = primal, 2 = dual other unknown. More...
 
int cleanupScaling () const
 Get scaling action option. More...
 
void setCleanupScaling (int value)
 Set Scaling option When scaling is on it is possible that the scaled problem is feasible but the unscaled is not. More...
 
double smallestElementInCut () const
 Get smallest allowed element in cut. More...
 
void setSmallestElementInCut (double value)
 Set smallest allowed element in cut. More...
 
double smallestChangeInCut () const
 Get smallest change in cut. More...
 
void setSmallestChangeInCut (double value)
 Set smallest change in cut. More...
 
void setSolveOptions (const ClpSolve &options)
 Pass in initial solve options. More...
 
virtual int tightenBounds (int lightweight=0)
 Tighten bounds - lightweight or very lightweight 0 - normal, 1 lightweight but just integers, 2 lightweight and all. More...
 
int infeasibleOtherWay (char *whichWay)
 See if any integer variables make infeasible other way. More...
 
virtual CoinBigIndex getSizeL () const
 Return number of entries in L part of current factorization. More...
 
virtual CoinBigIndex getSizeU () const
 Return number of entries in U part of current factorization. More...
 
const OsiClpDisasterHandlerdisasterHandler () const
 Get disaster handler. More...
 
void passInDisasterHandler (OsiClpDisasterHandler *handler)
 Pass in disaster handler. More...
 
ClpLinearObjectivefakeObjective () const
 Get fake objective. More...
 
void setFakeObjective (ClpLinearObjective *fakeObjective)
 Set fake objective (and take ownership) More...
 
void setFakeObjective (double *fakeObjective)
 Set fake objective. More...
 
void setupForRepeatedUse (int senseOfAdventure=0, int printOut=0)
 Set up solver for repeated use by Osi interface. More...
 
virtual void synchronizeModel ()
 Synchronize model (really if no cuts in tree) More...
 
void setSpecialOptionsMutable (unsigned int value) const
 Set special options in underlying clp solver. More...
 
 OsiClpSolverInterface ()
 Default Constructor. More...
 
 OsiClpSolverInterface (const OsiClpSolverInterface &)
 Copy constructor. More...
 
 OsiClpSolverInterface (ClpSimplex *rhs, bool reallyOwn=false)
 Borrow constructor - only delete one copy. More...
 
void releaseClp ()
 Releases so won't error. More...
 
OsiClpSolverInterfaceoperator= (const OsiClpSolverInterface &rhs)
 Assignment operator. More...
 
virtual ~OsiClpSolverInterface ()
 Destructor. More...
 
virtual void reset ()
 Resets as if default constructor. More...
 
void setBasis (const CoinWarmStartBasis &basis)
 Sets up working basis as a copy of input and puts in as basis. More...
 
void setBasis ()
 Just puts current basis_ into ClpSimplex model. More...
 
CoinWarmStartDiffgetBasisDiff (const unsigned char *statusArray) const
 Warm start difference from basis_ to statusArray. More...
 
CoinWarmStartBasisgetBasis (const unsigned char *statusArray) const
 Warm start from statusArray. More...
 
void deleteScaleFactors ()
 Delete all scale factor stuff and reset option. More...
 
const double * upRange () const
 If doing fast hot start then ranges are computed. More...
 
const double * downRange () const
 
void passInRanges (int *array)
 Pass in range array. More...
 
void setSOSData (int numberSOS, const char *type, const int *start, const int *indices, const double *weights=NULL)
 Pass in sos stuff from AMPl. More...
 
void computeLargestAway ()
 Compute largest amount any at continuous away from bound. More...
 
double largestAway () const
 Get largest amount continuous away from bound. More...
 
void setLargestAway (double value)
 Set largest amount continuous away from bound. More...
 
void lexSolve ()
 Sort of lexicographic resolve. More...
 
- Public Member Functions inherited from OsiSolverInterface
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const
 Get a hint parameter (all information) More...
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const
 Get a hint parameter (sense and strength only) More...
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo) const
 Get a hint parameter (sense only) More...
 
void copyParameters (OsiSolverInterface &rhs)
 Copy all parameters in this section from one solver to another. More...
 
double getIntegerTolerance () const
 Return the integrality tolerance of the underlying solver. More...
 
virtual int getNumIntegers () const
 Get the number of integer variables. More...
 
const char * columnType (bool refresh=false) const
 Return an array[getNumCols()] of column types. More...
 
virtual CoinPackedMatrixgetMutableMatrixByRow () const
 Get a pointer to a mutable row-wise copy of the matrix. More...
 
virtual const double * getStrictColSolution ()
 Get a pointer to an array[getNumCols()] of primal variable values guaranteed to be between the column lower and upper bounds. More...
 
virtual OsiVectorInt getFractionalIndices (const double etol=1.e-05) const
 Get vector of indices of primal variables which are integer variables but have fractional values in the current solution. More...
 
virtual void setObjCoeffSet (const int *indexFirst, const int *indexLast, const double *coeffList)
 Set a set of objective function coefficients. More...
 
virtual int reducedCostFix (double gap, bool justInteger=true)
 Fix variables at bound based on reduced cost. More...
 
virtual std::string dfltRowColName (char rc, int ndx, unsigned digits=7) const
 Generate a standard name of the form Rnnnnnnn or Cnnnnnnn. More...
 
virtual std::string getObjName (unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 Return the name of the objective function. More...
 
virtual void setObjName (std::string name)
 Set the name of the objective function. More...
 
virtual const OsiNameVecgetRowNames ()
 Return a pointer to a vector of row names. More...
 
virtual void setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 Set multiple row names. More...
 
virtual void deleteRowNames (int tgtStart, int len)
 Delete len row names starting at index tgtStart. More...
 
virtual const OsiNameVecgetColNames ()
 Return a pointer to a vector of column names. More...
 
virtual void setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 Set multiple column names. More...
 
virtual void deleteColNames (int tgtStart, int len)
 Delete len column names starting at index tgtStart. More...
 
void setRowColNames (const CoinMpsIO &mps)
 Set row and column names from a CoinMpsIO object. More...
 
void setRowColNames (CoinModel &mod)
 Set row and column names from a CoinModel object. More...
 
void setRowColNames (CoinLpIO &mod)
 Set row and column names from a CoinLpIO object. More...
 
void addCols (const CoinBuild &buildObject)
 Add columns using a CoinBuild object. More...
 
int addCols (CoinModel &modelObject)
 Add columns from a model object. More...
 
void addRows (const CoinBuild &buildObject)
 Add rows using a CoinBuild object. More...
 
int addRows (CoinModel &modelObject)
 Add rows from a CoinModel object. More...
 
void deleteBranchingInfo (int numberDeleted, const int *which)
 Deletes branching information before columns deleted. More...
 
virtual int readGMPL (const char *filename, const char *dataname=NULL)
 Read a problem in GMPL format from the given filenames. More...
 
int writeMpsNative (const char *filename, const char **rowNames, const char **columnNames, int formatType=0, int numberAcross=2, double objSense=0.0, int numberSOS=0, const CoinSet *setInfo=NULL) const
 Write the problem in MPS format to the specified file with more control over the output. More...
 
int writeLpNative (const char *filename, char const *const *const rowNames, char const *const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
 Write the problem into an Lp file. More...
 
int writeLpNative (FILE *fp, char const *const *const rowNames, char const *const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
 Write the problem into the file pointed to by the parameter fp. More...
 
int readLp (FILE *fp, const double epsilon=1e-5)
 Read file in LP format from the file pointed to by fp. More...
 
int differentModel (OsiSolverInterface &other, bool ignoreNames=true)
 Check two models against each other. More...
 
void setApplicationData (void *appData)
 Set application data. More...
 
void setAuxiliaryInfo (OsiAuxInfo *auxiliaryInfo)
 Create a clone of an Auxiliary Information object. More...
 
voidgetApplicationData () const
 Get application data. More...
 
OsiAuxInfogetAuxiliaryInfo () const
 Get pointer to auxiliary info object. More...
 
void newLanguage (CoinMessages::Language language)
 Set language. More...
 
void setLanguage (CoinMessages::Language language)
 
CoinMessageHandlermessageHandler () const
 Return a pointer to the current message handler. More...
 
CoinMessages messages ()
 Return the current set of messages. More...
 
CoinMessagesmessagesPointer ()
 Return a pointer to the current set of messages. More...
 
bool defaultHandler () const
 Return true if default handler. More...
 
void findIntegers (bool justCount)
 Identify integer variables and create corresponding objects. More...
 
int numberObjects () const
 Get the number of objects. More...
 
void setNumberObjects (int number)
 Set the number of objects. More...
 
OsiObject ** objects () const
 Get the array of objects. More...
 
const OsiObjectobject (int which) const
 Get the specified object. More...
 
OsiObjectmodifiableObject (int which) const
 Get the specified object. More...
 
void deleteObjects ()
 Delete all object information. More...
 
void addObjects (int numberObjects, OsiObject **objects)
 Add in object information. More...
 
double forceFeasible ()
 Use current solution to set bounds so current integer feasible solution will stay feasible. More...
 
virtual void activateRowCutDebugger (const char *modelName)
 Activate the row cut debugger. More...
 
virtual void activateRowCutDebugger (const double *solution, bool enforceOptimality=true)
 Activate the row cut debugger using a full solution array. More...
 
const OsiRowCutDebuggergetRowCutDebugger () const
 Get the row cut debugger provided the solution known to the debugger is within the feasible region held in the solver. More...
 
OsiRowCutDebuggergetRowCutDebuggerAlways () const
 Get the row cut debugger object. More...
 
bool optimalBasisIsAvailable () const
 Synonym for basisIsAvailable. More...
 
 OsiSolverInterface ()
 Default Constructor. More...
 
 OsiSolverInterface (const OsiSolverInterface &)
 Copy constructor. More...
 
OsiSolverInterfaceoperator= (const OsiSolverInterface &rhs)
 Assignment operator. More...
 
virtual ~OsiSolverInterface ()
 Destructor. More...
 

Protected Member Functions

functions
void gutsOfDestructor (bool justNullify=false)
 Do real work of initialize. More...
 
void gutsOfCopy (const OsiSolverLink &rhs)
 Do real work of copy. More...
 
- Protected Member Functions inherited from OsiClpSolverInterface
virtual void applyRowCut (const OsiRowCut &rc)
 Apply a row cut (append to constraint matrix). More...
 
virtual void applyColCut (const OsiColCut &cc)
 Apply a column cut (adjust one or more bounds). More...
 
void gutsOfDestructor ()
 The real work of a copy constructor (used by copy and assignment) More...
 
void freeCachedResults () const
 Deletes all mutable stuff. More...
 
void freeCachedResults0 () const
 Deletes all mutable stuff for row ranges etc. More...
 
void freeCachedResults1 () const
 Deletes all mutable stuff for matrix etc. More...
 
void extractSenseRhsRange () const
 A method that fills up the rowsense_, rhs_ and rowrange_ arrays. More...
 
void fillParamMaps ()
 
CoinWarmStartBasis getBasis (ClpSimplex *model) const
 Warm start. More...
 
void setBasis (const CoinWarmStartBasis &basis, ClpSimplex *model)
 Sets up working basis as a copy of input. More...
 
void crunch ()
 Crunch down problem a bit. More...
 
void redoScaleFactors (int numberRows, const CoinBigIndex *starts, const int *indices, const double *elements)
 Extend scale factors. More...
 
- Protected Member Functions inherited from OsiSolverInterface
void convertBoundToSense (const double lower, const double upper, char &sense, double &right, double &range) const
 A quick inlined function to convert from the lb/ub style of constraint definition to the sense/rhs/range style. More...
 
void convertSenseToBound (const char sense, const double right, const double range, double &lower, double &upper) const
 A quick inlined function to convert from the sense/rhs/range style of constraint definition to the lb/ub style. More...
 
template<class T >
forceIntoRange (const T value, const T lower, const T upper) const
 A quick inlined function to force a value to be between a minimum and a maximum value. More...
 
void setInitialData ()
 Set OsiSolverInterface object state for default constructor. More...
 

Protected Attributes

Private member data
CoinPackedMatrixmatrix_
 Clean copy of matrix Marked coefficients will be multiplied by L or U. More...
 
CoinPackedMatrixoriginalRowCopy_
 Row copy of matrix Just genuine columns and rows. More...
 
ClpSimplexquadraticModel_
 Copy of quadratic model if one. More...
 
int numberNonLinearRows_
 Number of rows with nonLinearities. More...
 
int * startNonLinear_
 Starts of lists. More...
 
int * rowNonLinear_
 Row number for a list. More...
 
int * convex_
 Indicator whether is convex, concave or neither -1 concave, 0 neither, +1 convex. More...
 
int * whichNonLinear_
 Indices in a list/row. More...
 
CoinModel coinModel_
 Model in CoinModel format. More...
 
int numberVariables_
 Number of variables in tightening phase. More...
 
OsiLinkedBoundinfo_
 Information. More...
 
int specialOptions2_
 0 bit (1) - call fathom (may do mini B&B) 1 bit (2) - quadratic only in objective (add OA cuts) 2 bit (4) - convex 3 bit (8) - try adding OA cuts 4 bit (16) - add linearized constraints More...
 
int objectiveRow_
 Objective transfer row if one. More...
 
int objectiveVariable_
 Objective transfer variable if one. More...
 
double bestObjectiveValue_
 Objective value of best solution found internally. More...
 
double defaultMeshSize_
 Default mesh. More...
 
double defaultBound_
 Default maximum bound. More...
 
double * bestSolution_
 Best solution found internally. More...
 
int integerPriority_
 Priority for integers. More...
 
int biLinearPriority_
 Priority for bilinear. More...
 
int numberFix_
 Number of variables which when fixed help. More...
 
int * fixVariables_
 list of fixed variables More...
 
- Protected Attributes inherited from CbcOsiSolver
CbcModelcbcModel_
 Pointer back to CbcModel. More...
 
- Protected Attributes inherited from OsiClpSolverInterface
ClpSimplexmodelPtr_
 Clp model represented by this class instance. More...
 
char * rowsense_
 Pointer to dense vector of row sense indicators. More...
 
double * rhs_
 Pointer to dense vector of row right-hand side values. More...
 
double * rowrange_
 Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows) More...
 
CoinWarmStartBasisws_
 A pointer to the warmstart information to be used in the hotstarts. More...
 
double * rowActivity_
 also save row and column information for hot starts only used in hotstarts so can be casual More...
 
double * columnActivity_
 
ClpNodeStuff stuff_
 Stuff for fast dual. More...
 
int numberSOS_
 Number of SOS sets. More...
 
CoinSetsetInfo_
 SOS set info. More...
 
ClpSimplexsmallModel_
 Alternate model (hot starts) - but also could be permanent and used for crunch. More...
 
ClpFactorizationfactorization_
 factorization for hot starts More...
 
double smallestElementInCut_
 Smallest allowed element in cut. More...
 
double smallestChangeInCut_
 Smallest change in cut. More...
 
double largestAway_
 Largest amount continuous away from bound. More...
 
char * spareArrays_
 Arrays for hot starts. More...
 
CoinWarmStartBasis basis_
 Warmstart information to be used in resolves. More...
 
int itlimOrig_
 The original iteration limit before hotstarts started. More...
 
int lastAlgorithm_
 Last algorithm used. More...
 
bool notOwned_
 To say if destructor should delete underlying model. More...
 
CoinPackedMatrixmatrixByRow_
 Pointer to row-wise copy of problem matrix coefficients. More...
 
CoinPackedMatrixmatrixByRowAtContinuous_
 Pointer to row-wise copy of continuous problem matrix coefficients. More...
 
char * integerInformation_
 Pointer to integer information. More...
 
int * whichRange_
 Pointer to variables for which we want range information The number is in [0] memory is not owned by OsiClp. More...
 
bool fakeMinInSimplex_
 Faking min to get proper dual solution signs in simplex API. More...
 
double * linearObjective_
 Linear objective. More...
 
ClpDataSave saveData_
 To save data in OsiSimplex stuff. More...
 
ClpSolve solveOptions_
 Options for initialSolve. More...
 
int cleanupScaling_
 Scaling option When scaling is on it is possible that the scaled problem is feasible but the unscaled is not. More...
 
unsigned int specialOptions_
 Special options 0x80000000 off 0 simple stuff for branch and bound 1 try and keep work regions as much as possible 2 do not use any perturbation 4 allow exit before re-factorization 8 try and re-use factorization if no cuts 16 use standard strong branching rather than clp's 32 Just go to first factorization in fast dual 64 try and tighten bounds in crunch 128 Model will only change in column bounds 256 Clean up model before hot start 512 Give user direct access to Clp regions in getBInvARow etc (i.e., do not unscale, and do not return result in getBInv parameters; you have to know where to look for the answer) 1024 Don't "borrow" model in initialSolve 2048 Don't crunch 4096 quick check for optimality Bits above 8192 give where called from in Cbc At present 0 is normal, 1 doing fast hotstarts, 2 is can do quick check 65536 Keep simple i.e. More...
 
ClpSimplexbaseModel_
 Copy of model when option 131072 set. More...
 
int lastNumberRows_
 Number of rows when last "scaled". More...
 
ClpSimplexcontinuousModel_
 Continuous model. More...
 
OsiClpDisasterHandlerdisasterHandler_
 Possible disaster handler. More...
 
ClpLinearObjectivefakeObjective_
 Fake objective. More...
 
CoinDoubleArrayWithLength rowScale_
 Row scale factors (has inverse at end) More...
 
CoinDoubleArrayWithLength columnScale_
 Column scale factors (has inverse at end) More...
 
- Protected Attributes inherited from OsiSolverInterface
OsiRowCutDebuggerrowCutDebugger_
 Pointer to row cut debugger object. More...
 
CoinMessageHandlerhandler_
 Message handler. More...
 
bool defaultHandler_
 Flag to say if the currrent handler is the default handler. More...
 
CoinMessages messages_
 Messages. More...
 
int numberIntegers_
 Number of integers. More...
 
int numberObjects_
 Total number of objects. More...
 
OsiObject ** object_
 Integer and ... information (integer info normally at beginning) More...
 
char * columnType_
 Column type 0 - continuous 1 - binary (may get fixed later) 2 - general integer (may get fixed later) More...
 

Additional Inherited Members

- Public Types inherited from OsiSolverInterface
typedef std::vector< std::string > OsiNameVec
 Data type for name vectors. More...
 

Detailed Description

This is to allow the user to replace initialSolve and resolve This version changes coefficients.

Definition at line 29 of file CbcLinked.hpp.

Constructor & Destructor Documentation

OsiSolverLink::OsiSolverLink ( )

Default Constructor.

OsiSolverLink::OsiSolverLink ( CoinModel modelObject)

This creates from a coinModel object.

if errors.then number of sets is -1

This creates linked ordered sets information. It assumes -

for product terms syntax is yy*f(zz) also just f(zz) is allowed and even a constant

modelObject not const as may be changed as part of process.

OsiSolverLink::OsiSolverLink ( const OsiSolverLink )

Copy constructor.

virtual OsiSolverLink::~OsiSolverLink ( )
virtual

Destructor.

Member Function Documentation

virtual void OsiSolverLink::initialSolve ( )
virtual

Solve initial LP relaxation.

Reimplemented from OsiClpSolverInterface.

virtual void OsiSolverLink::resolve ( )
virtual

Resolve an LP relaxation after problem modification.

Reimplemented from OsiClpSolverInterface.

virtual int OsiSolverLink::fathom ( bool  allFixed)
virtual

Problem specific Returns -1 if node fathomed and no solution 0 if did nothing 1 if node fathomed and solution allFixed is true if all LinkedBound variables are fixed.

double* OsiSolverLink::nonlinearSLP ( int  numberPasses,
double  deltaTolerance 
)

Solves nonlinear problem from CoinModel using SLP - may be used as crash for other algorithms when number of iterations small.

Also exits if all problematical variables are changing less than deltaTolerance Returns solution array

double OsiSolverLink::linearizedBAB ( CglStored cut)

Solve linearized quadratic objective branch and bound.

Return cutoff and OA cut

double* OsiSolverLink::heuristicSolution ( int  numberPasses,
double  deltaTolerance,
int  mode 
)

Solves nonlinear problem from CoinModel using SLP - and then tries to get heuristic solution Returns solution array mode - 0 just get continuous 1 round and try normal bab 2 use defaultBound_ to bound integer variables near current solution.

int OsiSolverLink::doAOCuts ( CglTemporary cutGen,
const double *  solution,
const double *  solution2 
)

Do OA cuts.

void OsiSolverLink::load ( CoinModel modelObject,
bool  tightenBounds = false,
int  logLevel = 1 
)
virtual OsiSolverInterface* OsiSolverLink::clone ( bool  copyData = true) const
virtual

Clone.

Reimplemented from CbcOsiSolver.

OsiSolverLink& OsiSolverLink::operator= ( const OsiSolverLink rhs)

Assignment operator.

void OsiSolverLink::addBoundModifier ( bool  upperBoundAffected,
bool  useUpperBound,
int  whichVariable,
int  whichVariableAffected,
double  multiplier = 1.0 
)

Add a bound modifier.

int OsiSolverLink::updateCoefficients ( ClpSimplex solver,
CoinPackedMatrix matrix 
)

Update coefficients - returns number updated if in updating mode.

void OsiSolverLink::analyzeObjects ( )

Analyze constraints to see which are convex (quadratic)

void OsiSolverLink::addTighterConstraints ( )

Add reformulated bilinear constraints.

double OsiSolverLink::bestObjectiveValue ( ) const
inline

Objective value of best solution found internally.

Definition at line 122 of file CbcLinked.hpp.

void OsiSolverLink::setBestObjectiveValue ( double  value)
inline

Set objective value of best solution found internally.

Definition at line 126 of file CbcLinked.hpp.

const double* OsiSolverLink::bestSolution ( ) const
inline

Best solution found internally.

Definition at line 130 of file CbcLinked.hpp.

void OsiSolverLink::setBestSolution ( const double *  solution,
int  numberColumns 
)

Set best solution found internally.

void OsiSolverLink::setSpecialOptions2 ( int  value)
inline

Set special options.

Definition at line 136 of file CbcLinked.hpp.

void OsiSolverLink::sayConvex ( bool  convex)

Say convex (should work it out) - if convex false then strictly concave.

int OsiSolverLink::specialOptions2 ( ) const
inline

Get special options.

Definition at line 142 of file CbcLinked.hpp.

CoinPackedMatrix* OsiSolverLink::cleanMatrix ( ) const
inline

Clean copy of matrix So we can add rows.

Definition at line 148 of file CbcLinked.hpp.

CoinPackedMatrix* OsiSolverLink::originalRowCopy ( ) const
inline

Row copy of matrix Just genuine columns and rows Linear part.

Definition at line 155 of file CbcLinked.hpp.

ClpSimplex* OsiSolverLink::quadraticModel ( ) const
inline

Copy of quadratic model if one.

Definition at line 159 of file CbcLinked.hpp.

CoinPackedMatrix* OsiSolverLink::quadraticRow ( int  rowNumber,
double *  linear 
) const

Gets correct form for a quadratic row - user to delete.

double OsiSolverLink::defaultMeshSize ( ) const
inline

Default meshSize.

Definition at line 165 of file CbcLinked.hpp.

void OsiSolverLink::setDefaultMeshSize ( double  value)
inline

Definition at line 168 of file CbcLinked.hpp.

double OsiSolverLink::defaultBound ( ) const
inline

Default maximumbound.

Definition at line 172 of file CbcLinked.hpp.

void OsiSolverLink::setDefaultBound ( double  value)
inline

Definition at line 175 of file CbcLinked.hpp.

void OsiSolverLink::setIntegerPriority ( int  value)
inline

Set integer priority.

Definition at line 179 of file CbcLinked.hpp.

int OsiSolverLink::integerPriority ( ) const
inline

Get integer priority.

Definition at line 183 of file CbcLinked.hpp.

int OsiSolverLink::objectiveVariable ( ) const
inline

Objective transfer variable if one.

Definition at line 187 of file CbcLinked.hpp.

void OsiSolverLink::setBiLinearPriority ( int  value)
inline

Set biLinear priority.

Definition at line 191 of file CbcLinked.hpp.

int OsiSolverLink::biLinearPriority ( ) const
inline

Get biLinear priority.

Definition at line 195 of file CbcLinked.hpp.

const CoinModel* OsiSolverLink::coinModel ( ) const
inline

Return CoinModel.

Definition at line 199 of file CbcLinked.hpp.

void OsiSolverLink::setBiLinearPriorities ( int  value,
double  meshSize = 1.0 
)

Set all biLinear priorities on x-x variables.

void OsiSolverLink::setBranchingStrategyOnVariables ( int  strategyValue,
int  priorityValue = -1,
int  mode = 7 
)

Set options and priority on all or some biLinear variables 1 - on I-I 2 - on I-x 4 - on x-x or combinations.

-1 means leave (for priority value and strategy value)

void OsiSolverLink::setMeshSizes ( double  value)

Set all mesh sizes on x-x variables.

void OsiSolverLink::setFixedPriority ( int  priorityValue)

Two tier integer problem where when set of variables with priority less than this are fixed the problem becomes an easier integer problem.

void OsiSolverLink::gutsOfDestructor ( bool  justNullify = false)
protected

Do real work of initialize.

Do real work of delete

void OsiSolverLink::gutsOfCopy ( const OsiSolverLink rhs)
protected

Do real work of copy.

Member Data Documentation

CoinPackedMatrix* OsiSolverLink::matrix_
protected

Clean copy of matrix Marked coefficients will be multiplied by L or U.

Definition at line 241 of file CbcLinked.hpp.

CoinPackedMatrix* OsiSolverLink::originalRowCopy_
protected

Row copy of matrix Just genuine columns and rows.

Definition at line 245 of file CbcLinked.hpp.

ClpSimplex* OsiSolverLink::quadraticModel_
protected

Copy of quadratic model if one.

Definition at line 247 of file CbcLinked.hpp.

int OsiSolverLink::numberNonLinearRows_
protected

Number of rows with nonLinearities.

Definition at line 249 of file CbcLinked.hpp.

int* OsiSolverLink::startNonLinear_
protected

Starts of lists.

Definition at line 251 of file CbcLinked.hpp.

int* OsiSolverLink::rowNonLinear_
protected

Row number for a list.

Definition at line 253 of file CbcLinked.hpp.

int* OsiSolverLink::convex_
protected

Indicator whether is convex, concave or neither -1 concave, 0 neither, +1 convex.

Definition at line 257 of file CbcLinked.hpp.

int* OsiSolverLink::whichNonLinear_
protected

Indices in a list/row.

Definition at line 259 of file CbcLinked.hpp.

CoinModel OsiSolverLink::coinModel_
protected

Model in CoinModel format.

Definition at line 261 of file CbcLinked.hpp.

int OsiSolverLink::numberVariables_
protected

Number of variables in tightening phase.

Definition at line 263 of file CbcLinked.hpp.

OsiLinkedBound* OsiSolverLink::info_
protected

Information.

Definition at line 265 of file CbcLinked.hpp.

int OsiSolverLink::specialOptions2_
protected

0 bit (1) - call fathom (may do mini B&B) 1 bit (2) - quadratic only in objective (add OA cuts) 2 bit (4) - convex 3 bit (8) - try adding OA cuts 4 bit (16) - add linearized constraints

Definition at line 273 of file CbcLinked.hpp.

int OsiSolverLink::objectiveRow_
protected

Objective transfer row if one.

Definition at line 275 of file CbcLinked.hpp.

int OsiSolverLink::objectiveVariable_
protected

Objective transfer variable if one.

Definition at line 277 of file CbcLinked.hpp.

double OsiSolverLink::bestObjectiveValue_
protected

Objective value of best solution found internally.

Definition at line 279 of file CbcLinked.hpp.

double OsiSolverLink::defaultMeshSize_
protected

Default mesh.

Definition at line 281 of file CbcLinked.hpp.

double OsiSolverLink::defaultBound_
protected

Default maximum bound.

Definition at line 283 of file CbcLinked.hpp.

double* OsiSolverLink::bestSolution_
protected

Best solution found internally.

Definition at line 285 of file CbcLinked.hpp.

int OsiSolverLink::integerPriority_
protected

Priority for integers.

Definition at line 287 of file CbcLinked.hpp.

int OsiSolverLink::biLinearPriority_
protected

Priority for bilinear.

Definition at line 289 of file CbcLinked.hpp.

int OsiSolverLink::numberFix_
protected

Number of variables which when fixed help.

Definition at line 291 of file CbcLinked.hpp.

int* OsiSolverLink::fixVariables_
protected

list of fixed variables

Definition at line 293 of file CbcLinked.hpp.


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