Vol 1.5.4
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OsiVolSolverInterface Class Reference

Vol(ume) Solver Interface. More...

#include <OsiVolSolverInterface.hpp>

+ Inheritance diagram for OsiVolSolverInterface:
+ Collaboration diagram for OsiVolSolverInterface:

Classes

class  OsiVolMatrixOneMinusOne_
 

Public Member Functions

Solve methods
virtual void initialSolve ()
 Solve initial LP relaxation.
 
virtual void resolve ()
 Resolve an LP relaxation after problem modification.
 
virtual void branchAndBound ()
 Invoke solver's built-in enumeration algorithm.
 
Parameter set/get methods

The set methods return true if the parameter was set to the given value, false otherwise.

There can be various reasons for failure: the given parameter is not applicable for the solver (e.g., refactorization frequency for the volume algorithm), the parameter is not yet implemented for the solver or simply the value of the parameter is out of the range the solver accepts. If a parameter setting call returns false check the details of your solver.

The get methods return true if the given parameter is applicable for the solver and is implemented. In this case the value of the parameter is returned in the second argument. Otherwise they return false.

bool setIntParam (OsiIntParam key, int value)
 
bool setDblParam (OsiDblParam key, double value)
 
bool setStrParam (OsiStrParam key, const std::string &value)
 
bool getIntParam (OsiIntParam key, int &value) const
 
bool getDblParam (OsiDblParam key, double &value) const
 
bool getStrParam (OsiStrParam key, std::string &value) const
 
Methods returning info on how the solution process terminated
virtual bool isAbandoned () const
 Are there a numerical difficulties?
 
virtual bool isProvenOptimal () const
 Is optimality proven?
 
virtual bool isProvenPrimalInfeasible () const
 Is primal infeasiblity proven?
 
virtual bool isProvenDualInfeasible () const
 Is dual infeasiblity proven?
 
virtual bool isPrimalObjectiveLimitReached () const
 Is the given primal objective limit reached?
 
virtual bool isDualObjectiveLimitReached () const
 Is the given dual objective limit reached?
 
virtual bool isIterationLimitReached () const
 Iteration limit reached?
 
WarmStart related methods
virtual CoinWarmStartgetEmptyWarmStart () const
 Get an empty warm start object.
 
virtual CoinWarmStartgetWarmStart () const
 Get warmstarting information.
 
virtual bool setWarmStart (const CoinWarmStart *warmstart)
 Set warmstarting information.
 
Hotstart related methods (primarily used in strong branching). <br>

The user can create a hotstart (a snapshot) of the optimization process then reoptimize over and over again always starting from there.


NOTE: between hotstarted optimizations only bound changes are allowed.

virtual void markHotStart ()
 Create a hotstart point of the optimization process.
 
virtual void solveFromHotStart ()
 Optimize starting from the hotstart.
 
virtual void unmarkHotStart ()
 Delete the snapshot.
 
Methods related to querying the input data
virtual int getNumCols () const
 Get number of columns.
 
virtual int getNumRows () const
 Get number of rows.
 
virtual int getNumElements () const
 Get number of nonzero elements.
 
virtual const double * getColLower () const
 Get pointer to array[getNumCols()] of column lower bounds.
 
virtual const double * getColUpper () const
 Get pointer to array[getNumCols()] of column upper bounds.
 
virtual const char * getRowSense () const
 Get pointer to array[getNumRows()] of row constraint senses.
 
virtual const double * getRightHandSide () const
 Get pointer to array[getNumRows()] of rows right-hand sides.
 
virtual const double * getRowRange () const
 Get pointer to array[getNumRows()] of row ranges.
 
virtual const double * getRowLower () const
 Get pointer to array[getNumRows()] of row lower bounds.
 
virtual const double * getRowUpper () const
 Get pointer to array[getNumRows()] of row upper bounds.
 
virtual const double * getObjCoefficients () const
 Get pointer to array[getNumCols()] of objective function coefficients.
 
virtual double getObjSense () const
 Get objective function sense (1 for min (default), -1 for max)
 
virtual bool isContinuous (int colNumber) const
 Return true if column is continuous.
 
virtual const CoinPackedMatrixgetMatrixByRow () const
 Get pointer to row-wise copy of matrix.
 
virtual const CoinPackedMatrixgetMatrixByCol () const
 Get pointer to column-wise copy of matrix.
 
virtual double getInfinity () const
 Get solver's value for infinity.
 
Methods related to querying the solution
virtual const double * getColSolution () const
 Get pointer to array[getNumCols()] of primal solution vector.
 
virtual const double * getRowPrice () const
 Get pointer to array[getNumRows()] of dual prices.
 
virtual const double * getReducedCost () const
 Get a pointer to array[getNumCols()] of reduced costs.
 
virtual const double * getRowActivity () const
 Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector.
 
virtual double getObjValue () const
 Get objective function value.
 
virtual int getIterationCount () const
 Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver.
 
virtual std::vector< double * > getDualRays (int maxNumRays, bool fullRay=false) const
 Get as many dual rays as the solver can provide.
 
virtual std::vector< double * > getPrimalRays (int maxNumRays) const
 Get as many primal rays as the solver can provide.
 
Changing bounds on variables and constraints
virtual void setObjCoeff (int elementIndex, double elementValue)
 Set an objective function coefficient.
 
virtual void setColLower (int elementIndex, double elementValue)
 Set a single column lower bound
Use -DBL_MAX for -infinity.
 
virtual void setColUpper (int elementIndex, double elementValue)
 Set a single column upper bound
Use DBL_MAX for infinity.
 
virtual void setColBounds (int elementIndex, double lower, double upper)
 Set a single column lower and upper bound.
 
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.
 
virtual void setRowLower (int elementIndex, double elementValue)
 Set a single row lower bound
Use -DBL_MAX for -infinity.
 
virtual void setRowUpper (int elementIndex, double elementValue)
 Set a single row upper bound
Use DBL_MAX for infinity.
 
virtual void setRowBounds (int elementIndex, double lower, double upper)
 Set a single row lower and upper bound.
 
virtual void setRowType (int index, char sense, double rightHandSide, double range)
 Set the type of a single row

 
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.
 
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.
 
virtual void setColLower (int elementIndex, double elementValue)=0
 
virtual void setColLower (const double *array)
 
virtual void setColLower (int elementIndex, double elementValue)=0
 
virtual void setColLower (const double *array)
 
virtual void setColUpper (int elementIndex, double elementValue)=0
 
virtual void setColUpper (const double *array)
 
virtual void setColUpper (int elementIndex, double elementValue)=0
 
virtual void setColUpper (const double *array)
 
Integrality related changing methods
virtual void setContinuous (int index)
 Set the index-th variable to be a continuous variable.
 
virtual void setInteger (int index)
 Set the index-th variable to be an integer variable.
 
virtual void setContinuous (const int *indices, int len)
 Set the variables listed in indices (which is of length len) to be continuous variables.
 
virtual void setInteger (const int *indices, int len)
 Set the variables listed in indices (which is of length len) to be integer variables.
 
virtual void setObjSense (double s)
 Set objective function sense (1 for min (default), -1 for max,)
 
virtual void setColSolution (const double *colsol)
 Set the primal solution column values.
 
virtual void setRowPrice (const double *rowprice)
 Set dual solution vector.
 
Methods to expand a problem.<br>

Note that if a column is added then by default it will correspond to a continuous variable.

virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)
 
virtual void addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj)
 
virtual void deleteCols (const int num, const int *colIndices)
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const double *rowlb, const double *rowub)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const char *rowsen, const double *rowrhs, const double *rowrng)
 
virtual void deleteRows (const int num, const int *rowIndices)
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)=0
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj, std::string name)
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj)
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj, std::string name)
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)=0
 
virtual void addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj, std::string name)
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj)
 
virtual void addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj, std::string name)
 
virtual void addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj)
 
virtual void addCols (const int numcols, const CoinBigIndex *columnStarts, const int *rows, const double *elements, const double *collb, const double *colub, const double *obj)
 
void addCols (const CoinBuild &buildObject)
 
int addCols (CoinModel &modelObject)
 
virtual void addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj)
 
virtual void addCols (const int numcols, const CoinBigIndex *columnStarts, const int *rows, const double *elements, const double *collb, const double *colub, const double *obj)
 
void addCols (const CoinBuild &buildObject)
 
int addCols (CoinModel &modelObject)
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)=0
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub, std::string name)
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)=0
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng, std::string name)
 
virtual void addRow (int numberElements, const int *columns, const double *element, const double rowlb, const double rowub)
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)=0
 
virtual void addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub, std::string name)
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)=0
 
virtual void addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng, std::string name)
 
virtual void addRow (int numberElements, const int *columns, const double *element, const double rowlb, const double rowub)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const double *rowlb, const double *rowub)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const char *rowsen, const double *rowrhs, const double *rowrng)
 
virtual void addRows (const int numrows, const CoinBigIndex *rowStarts, const int *columns, const double *element, const double *rowlb, const double *rowub)
 
void addRows (const CoinBuild &buildObject)
 
int addRows (CoinModel &modelObject)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const double *rowlb, const double *rowub)
 
virtual void addRows (const int numrows, const CoinPackedVectorBase *const *rows, const char *rowsen, const double *rowrhs, const double *rowrng)
 
virtual void addRows (const int numrows, const CoinBigIndex *rowStarts, const int *columns, const double *element, const double *rowlb, const double *rowub)
 
void addRows (const CoinBuild &buildObject)
 
int addRows (CoinModel &modelObject)
 
Methods to input a problem
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).
 
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).
 
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).
 
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).
 
virtual void loadProblem (const int numcols, const int numrows, const int *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).
 
virtual void loadProblem (const int numcols, const int numrows, const int *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).
 
virtual int readMps (const char *filename, const char *extension="mps")
 Read an mps file from the given filename.
 
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.
 
virtual int readMps (const char *filename, const char *extension="mps")
 
virtual int readMps (const char *filename, const char *extension, int &numberSets, CoinSet **&sets)
 
virtual int readMps (const char *filename, const char *extension="mps")
 
virtual int readMps (const char *filename, const char *extension, int &numberSets, CoinSet **&sets)
 
OSL specific public interfaces
VOL_problemvolprob ()
 Get pointer to Vol model.
 
Constructors and destructors
 OsiVolSolverInterface ()
 Default Constructor.
 
virtual OsiSolverInterfaceclone (bool copyData=true) const
 Clone.
 
 OsiVolSolverInterface (const OsiVolSolverInterface &)
 Copy constructor.
 
OsiVolSolverInterfaceoperator= (const OsiVolSolverInterface &rhs)
 Assignment operator.
 
virtual ~OsiVolSolverInterface ()
 Destructor.
 
- Public Member Functions inherited from OsiSolverInterface
virtual bool setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *=NULL)
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo) const
 
void copyParameters (OsiSolverInterface &rhs)
 
double getIntegerTolerance () const
 
virtual CoinWarmStartgetPointerToWarmStart (bool &mustDelete)
 
virtual int getNumIntegers () const
 
virtual bool isBinary (int colIndex) const
 
virtual bool isInteger (int colIndex) const
 
virtual bool isIntegerNonBinary (int colIndex) const
 
virtual bool isFreeBinary (int colIndex) const
 
const char * columnType (bool refresh=false) const
 
void setColumnType (int iColumn, char type)
 
virtual const char * getColType (bool refresh=false) const
 
virtual CoinPackedMatrixgetMutableMatrixByRow () const
 
virtual CoinPackedMatrixgetMutableMatrixByCol () const
 
virtual const double * getStrictColSolution ()
 
virtual OsiVectorInt getFractionalIndices (const double etol=1.e-05) const
 
virtual void setObjCoeffSet (const int *indexFirst, const int *indexLast, const double *coeffList)
 
virtual void setObjective (const double *array)
 
virtual int reducedCostFix (double gap, bool justInteger=true)
 
virtual std::string dfltRowColName (char rc, int ndx, unsigned digits=7) const
 
virtual std::string getObjName (unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual void setObjName (std::string name)
 
virtual std::string getRowName (int rowIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual const OsiNameVecgetRowNames ()
 
virtual void setRowName (int ndx, std::string name)
 
virtual void setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 
virtual void deleteRowNames (int tgtStart, int len)
 
virtual std::string getColName (int colIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual const OsiNameVecgetColNames ()
 
virtual void setColName (int ndx, std::string name)
 
virtual void setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 
virtual void deleteColNames (int tgtStart, int len)
 
void setRowColNames (const CoinMpsIO &mps)
 
void setRowColNames (CoinModel &mod)
 
void setRowColNames (CoinLpIO &mod)
 
void addCols (const CoinBuild &buildObject)
 
int addCols (CoinModel &modelObject)
 
void addRows (const CoinBuild &buildObject)
 
int addRows (CoinModel &modelObject)
 
virtual void replaceMatrixOptional (const CoinPackedMatrix &)
 
virtual void replaceMatrix (const CoinPackedMatrix &)
 
virtual void saveBaseModel ()
 
virtual void restoreBaseModel (int numberRows)
 
virtual ApplyCutsReturnCode applyCuts (const OsiCuts &cs, double effectivenessLb=0.0)
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut *cuts)
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut **cuts)
 
void deleteBranchingInfo (int numberDeleted, const int *which)
 
virtual int loadFromCoinModel (CoinModel &modelObject, bool keepSolution=false)
 
virtual int readGMPL (const char *filename, const char *dataname=NULL)
 
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
 
virtual void writeLp (const char *filename, const char *extension="lp", double epsilon=1e-5, int numberAcross=10, int decimals=9, double objSense=0.0, bool useRowNames=true) const
 
virtual void writeLp (FILE *fp, double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
 
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
 
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
 
virtual int readLp (const char *filename, const double epsilon=1e-5)
 
int readLp (FILE *fp, const double epsilon=1e-5)
 
int differentModel (OsiSolverInterface &other, bool ignoreNames=true)
 
void statistics (double &minimumNegative, double &maximumNegative, double &minimumPositive, double &maximumPositive, int type=3) const
 
void setApplicationData (void *appData)
 
void setAuxiliaryInfo (OsiAuxInfo *auxiliaryInfo)
 
void * getApplicationData () const
 
OsiAuxInfogetAuxiliaryInfo () const
 
virtual void passInMessageHandler (CoinMessageHandler *handler)
 
void newLanguage (CoinMessages::Language language)
 
void setLanguage (CoinMessages::Language language)
 
CoinMessageHandlermessageHandler () const
 
CoinMessages messages ()
 
CoinMessagesmessagesPointer ()
 
bool defaultHandler () const
 
void findIntegers (bool justCount)
 
virtual int findIntegersAndSOS (bool justCount)
 
int numberObjects () const
 
void setNumberObjects (int number)
 
OsiObject ** objects () const
 
const OsiObjectobject (int which) const
 
OsiObjectmodifiableObject (int which) const
 
void deleteObjects ()
 
void addObjects (int numberObjects, OsiObject **objects)
 
double forceFeasible ()
 
virtual void activateRowCutDebugger (const char *modelName)
 
virtual void activateRowCutDebugger (const double *solution, bool enforceOptimality=true)
 
const OsiRowCutDebuggergetRowCutDebugger () const
 
OsiRowCutDebuggergetRowCutDebuggerAlways () const
 
virtual int canDoSimplexInterface () const
 
virtual void enableFactorization () const
 
virtual void disableFactorization () const
 
virtual bool basisIsAvailable () const
 
bool optimalBasisIsAvailable () const
 
virtual void getBasisStatus (int *cstat, int *rstat) const
 
virtual int setBasisStatus (const int *cstat, const int *rstat)
 
virtual void getReducedGradient (double *columnReducedCosts, double *duals, const double *c) const
 
virtual void getBInvARow (int row, double *z, double *slack=NULL) const
 
virtual void getBInvRow (int row, double *z) const
 
virtual void getBInvACol (int col, double *vec) const
 
virtual void getBInvCol (int col, double *vec) const
 
virtual void getBasics (int *index) const
 
virtual void enableSimplexInterface (bool doingPrimal)
 
virtual void disableSimplexInterface ()
 
virtual int pivot (int colIn, int colOut, int outStatus)
 
virtual int primalPivotResult (int colIn, int sign, int &colOut, int &outStatus, double &t, CoinPackedVector *dx)
 
virtual int dualPivotResult (int &colIn, int &sign, int colOut, int outStatus, double &t, CoinPackedVector *dx)
 
 OsiSolverInterface ()
 
 OsiSolverInterface (const OsiSolverInterface &)
 
OsiSolverInterfaceoperator= (const OsiSolverInterface &rhs)
 
virtual ~OsiSolverInterface ()
 
virtual void reset ()
 
virtual bool setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *=NULL)
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const
 
virtual bool getHintParam (OsiHintParam key, bool &yesNo) const
 
void copyParameters (OsiSolverInterface &rhs)
 
double getIntegerTolerance () const
 
virtual CoinWarmStartgetPointerToWarmStart (bool &mustDelete)
 
virtual int getNumIntegers () const
 
virtual bool isBinary (int colIndex) const
 
virtual bool isInteger (int colIndex) const
 
virtual bool isIntegerNonBinary (int colIndex) const
 
virtual bool isFreeBinary (int colIndex) const
 
const char * columnType (bool refresh=false) const
 
void setColumnType (int iColumn, char type)
 
virtual const char * getColType (bool refresh=false) const
 
virtual CoinPackedMatrixgetMutableMatrixByRow () const
 
virtual CoinPackedMatrixgetMutableMatrixByCol () const
 
virtual const double * getStrictColSolution ()
 
virtual OsiVectorInt getFractionalIndices (const double etol=1.e-05) const
 
virtual void setObjCoeffSet (const int *indexFirst, const int *indexLast, const double *coeffList)
 
virtual void setObjective (const double *array)
 
virtual int reducedCostFix (double gap, bool justInteger=true)
 
virtual std::string dfltRowColName (char rc, int ndx, unsigned digits=7) const
 
virtual std::string getObjName (unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual void setObjName (std::string name)
 
virtual std::string getRowName (int rowIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual const OsiNameVecgetRowNames ()
 
virtual void setRowName (int ndx, std::string name)
 
virtual void setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 
virtual void deleteRowNames (int tgtStart, int len)
 
virtual std::string getColName (int colIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
 
virtual const OsiNameVecgetColNames ()
 
virtual void setColName (int ndx, std::string name)
 
virtual void setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
 
virtual void deleteColNames (int tgtStart, int len)
 
void setRowColNames (const CoinMpsIO &mps)
 
void setRowColNames (CoinModel &mod)
 
void setRowColNames (CoinLpIO &mod)
 
void addCols (const CoinBuild &buildObject)
 
int addCols (CoinModel &modelObject)
 
void addRows (const CoinBuild &buildObject)
 
int addRows (CoinModel &modelObject)
 
virtual void replaceMatrixOptional (const CoinPackedMatrix &)
 
virtual void replaceMatrix (const CoinPackedMatrix &)
 
virtual void saveBaseModel ()
 
virtual void restoreBaseModel (int numberRows)
 
virtual ApplyCutsReturnCode applyCuts (const OsiCuts &cs, double effectivenessLb=0.0)
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut *cuts)
 
virtual void applyRowCuts (int numberCuts, const OsiRowCut **cuts)
 
void deleteBranchingInfo (int numberDeleted, const int *which)
 
virtual int loadFromCoinModel (CoinModel &modelObject, bool keepSolution=false)
 
virtual int readGMPL (const char *filename, const char *dataname=NULL)
 
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
 
virtual void writeLp (const char *filename, const char *extension="lp", double epsilon=1e-5, int numberAcross=10, int decimals=9, double objSense=0.0, bool useRowNames=true) const
 
virtual void writeLp (FILE *fp, double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
 
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
 
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
 
virtual int readLp (const char *filename, const double epsilon=1e-5)
 
int readLp (FILE *fp, const double epsilon=1e-5)
 
int differentModel (OsiSolverInterface &other, bool ignoreNames=true)
 
void statistics (double &minimumNegative, double &maximumNegative, double &minimumPositive, double &maximumPositive, int type=3) const
 
void setApplicationData (void *appData)
 
void setAuxiliaryInfo (OsiAuxInfo *auxiliaryInfo)
 
void * getApplicationData () const
 
OsiAuxInfogetAuxiliaryInfo () const
 
virtual void passInMessageHandler (CoinMessageHandler *handler)
 
void newLanguage (CoinMessages::Language language)
 
void setLanguage (CoinMessages::Language language)
 
CoinMessageHandlermessageHandler () const
 
CoinMessages messages ()
 
CoinMessagesmessagesPointer ()
 
bool defaultHandler () const
 
void findIntegers (bool justCount)
 
virtual int findIntegersAndSOS (bool justCount)
 
int numberObjects () const
 
void setNumberObjects (int number)
 
OsiObject ** objects () const
 
const OsiObjectobject (int which) const
 
OsiObjectmodifiableObject (int which) const
 
void deleteObjects ()
 
void addObjects (int numberObjects, OsiObject **objects)
 
double forceFeasible ()
 
virtual void activateRowCutDebugger (const char *modelName)
 
virtual void activateRowCutDebugger (const double *solution, bool enforceOptimality=true)
 
const OsiRowCutDebuggergetRowCutDebugger () const
 
OsiRowCutDebuggergetRowCutDebuggerAlways () const
 
virtual int canDoSimplexInterface () const
 
virtual void enableFactorization () const
 
virtual void disableFactorization () const
 
virtual bool basisIsAvailable () const
 
bool optimalBasisIsAvailable () const
 
virtual void getBasisStatus (int *cstat, int *rstat) const
 
virtual int setBasisStatus (const int *cstat, const int *rstat)
 
virtual void getReducedGradient (double *columnReducedCosts, double *duals, const double *c) const
 
virtual void getBInvARow (int row, double *z, double *slack=NULL) const
 
virtual void getBInvRow (int row, double *z) const
 
virtual void getBInvACol (int col, double *vec) const
 
virtual void getBInvCol (int col, double *vec) const
 
virtual void getBasics (int *index) const
 
virtual void enableSimplexInterface (bool doingPrimal)
 
virtual void disableSimplexInterface ()
 
virtual int pivot (int colIn, int colOut, int outStatus)
 
virtual int primalPivotResult (int colIn, int sign, int &colOut, int &outStatus, double &t, CoinPackedVector *dx)
 
virtual int dualPivotResult (int &colIn, int &sign, int colOut, int outStatus, double &t, CoinPackedVector *dx)
 
 OsiSolverInterface ()
 
 OsiSolverInterface (const OsiSolverInterface &)
 
OsiSolverInterfaceoperator= (const OsiSolverInterface &rhs)
 
virtual ~OsiSolverInterface ()
 
virtual void reset ()
 
- Public Member Functions inherited from VOL_user_hooks
virtual ~VOL_user_hooks ()
 
virtual ~VOL_user_hooks ()
 

Protected Member Functions

Helper methods for problem input
void initFromRlbRub (const int rownum, const double *rowlb, const double *rowub)
 
void initFromRhsSenseRange (const int rownum, const char *rowsen, const double *rowrhs, const double *rowrng)
 
void initFromClbCubObj (const int colnum, const double *collb, const double *colub, const double *obj)
 
Protected methods
virtual void applyRowCut (const OsiRowCut &rc)
 Apply a row cut (append to constraint matrix).
 
virtual void applyColCut (const OsiColCut &cc)
 Apply a column cut (adjust one or more bounds).
 
- Protected Member Functions inherited from OsiSolverInterface
void convertBoundToSense (const double lower, const double upper, char &sense, double &right, double &range) const
 
void convertSenseToBound (const char sense, const double right, const double range, double &lower, double &upper) const
 
forceIntoRange (const T value, const T lower, const T upper) const
 
void setInitialData ()
 
void convertBoundToSense (const double lower, const double upper, char &sense, double &right, double &range) const
 
void convertSenseToBound (const char sense, const double right, const double range, double &lower, double &upper) const
 
forceIntoRange (const T value, const T lower, const T upper) const
 
void setInitialData ()
 

Private Member Functions

Methods of <code>VOL_user_hooks</code>
virtual int compute_rc (const VOL_dvector &u, VOL_dvector &rc)
 compute reduced costs

 
virtual int solve_subproblem (const VOL_dvector &dual, const VOL_dvector &rc, double &lcost, VOL_dvector &x, VOL_dvector &v, double &pcost)
 Solve the subproblem for the subgradient step.
 
virtual int heuristics (const VOL_problem &, const VOL_dvector &, double &heur_val)
 Starting from the primal vector x, run a heuristic to produce an integer solution.
 
Private helper methods
void updateRowMatrix_ () const
 Update the row ordered matrix from the column ordered one.
 
void updateColMatrix_ () const
 Update the column ordered matrix from the row ordered one.
 
void checkData_ () const
 Test whether the Volume Algorithm can be applied to the given problem.
 
void compute_rc_ (const double *u, double *rc) const
 Compute the reduced costs (rc) with respect to the dual values given in u.
 
void gutsOfDestructor_ ()
 A method deleting every member data.
 
void rowRimAllocator_ ()
 A method allocating sufficient space for the rim vectors corresponding to the rows.
 
void colRimAllocator_ ()
 A method allocating sufficient space for the rim vectors corresponding to the columns.
 
void rowRimResize_ (const int newSize)
 Reallocate the rim arrays corresponding to the rows.
 
void colRimResize_ (const int newSize)
 Reallocate the rim arrays corresponding to the columns.
 
void convertBoundsToSenses_ ()
 For each row convert LB/UB style row constraints to sense/rhs style.
 
void convertSensesToBounds_ ()
 For each row convert sense/rhs style row constraints to LB/UB style.
 
bool test_zero_one_minusone_ (const CoinPackedMatrix &m) const
 test whether the given matrix is 0/1/-1 entries only.
 

Private Attributes

The problem matrix in row and column ordered forms <br>

Note that at least one of the matrices is always current.

bool rowMatrixCurrent_
 A flag indicating whether the row ordered matrix is up-to-date.
 
CoinPackedMatrix rowMatrix_
 The problem matrix in a row ordered form.
 
bool colMatrixCurrent_
 A flag indicating whether the column ordered matrix is up-to-date.
 
CoinPackedMatrix colMatrix_
 The problem matrix in a column ordered form.
 
Data members used when 0/1/-1 matrix is detected
bool isZeroOneMinusOne_
 An indicator whether the matrix is 0/1/-1.
 
OsiVolMatrixOneMinusOne_rowMatrixOneMinusOne_
 The row ordered matrix without the elements.
 
OsiVolMatrixOneMinusOne_colMatrixOneMinusOne_
 The column ordered matrix without the elements.
 
The rim vectors
double * colupper_
 Pointer to dense vector of structural variable upper bounds.
 
double * collower_
 Pointer to dense vector of structural variable lower bounds.
 
bool * continuous_
 Pointer to dense vector of bool to indicate if column is continuous.
 
double * rowupper_
 Pointer to dense vector of slack variable upper bounds.
 
double * rowlower_
 Pointer to dense vector of slack variable lower bounds.
 
char * rowsense_
 Pointer to dense vector of row sense indicators.
 
double * rhs_
 Pointer to dense vector of row right-hand side values.
 
double * rowrange_
 Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows).
 
double * objcoeffs_
 Pointer to dense vector of objective coefficients.
 
double objsense_
 Sense of objective (1 for min; -1 for max)
 
The solution
double * colsol_
 Pointer to dense vector of primal structural variable values.
 
double * rowprice_
 Pointer to dense vector of dual row variable values.
 
double * rc_
 Pointer to dense vector of reduced costs.
 
double * lhs_
 Pointer to dense vector of left hand sides (row activity levels)
 
double lagrangeanCost_
 The Lagrangean cost, a lower bound on the objective value.
 
double * rowpriceHotStart_
 An array to store the hotstart information between solveHotStart() calls.
 
int maxNumrows_
 allocated size of the row related rim vectors
 
int maxNumcols_
 allocated size of the column related rim vectors
 
VOL_problem volprob_
 The volume solver.
 

Friends

void OsiVolSolverInterfaceUnitTest (const std::string &mpsDir, const std::string &netlibDir)
 A function that tests the methods in the OsiVolSolverInterface class.
 

Additional Inherited Members

- Public Types inherited from OsiSolverInterface
typedef std::vector< std::string > OsiNameVec
 
- Protected Attributes inherited from OsiSolverInterface
OsiRowCutDebuggerrowCutDebugger_
 
CoinMessageHandlerhandler_
 
bool defaultHandler_
 
CoinMessages messages_
 
int numberIntegers_
 
int numberObjects_
 
OsiObject ** object_
 
char * columnType_
 

Detailed Description

Vol(ume) Solver Interface.

Instantiation of OsiVolSolverInterface for the Volume Algorithm

Definition at line 27 of file OsiVolSolverInterface.hpp.

Constructor & Destructor Documentation

◆ OsiVolSolverInterface() [1/2]

OsiVolSolverInterface::OsiVolSolverInterface ( )

Default Constructor.

◆ OsiVolSolverInterface() [2/2]

OsiVolSolverInterface::OsiVolSolverInterface ( const OsiVolSolverInterface & )

Copy constructor.

◆ ~OsiVolSolverInterface()

virtual OsiVolSolverInterface::~OsiVolSolverInterface ( )
virtual

Destructor.

Member Function Documentation

◆ initialSolve()

virtual void OsiVolSolverInterface::initialSolve ( )
virtual

Solve initial LP relaxation.

Implements OsiSolverInterface.

◆ resolve()

virtual void OsiVolSolverInterface::resolve ( )
virtual

Resolve an LP relaxation after problem modification.

Implements OsiSolverInterface.

◆ branchAndBound()

virtual void OsiVolSolverInterface::branchAndBound ( )
inlinevirtual

Invoke solver's built-in enumeration algorithm.

Implements OsiSolverInterface.

Definition at line 63 of file OsiVolSolverInterface.hpp.

◆ setIntParam()

bool OsiVolSolverInterface::setIntParam ( OsiIntParam key,
int value )
virtual

Reimplemented from OsiSolverInterface.

◆ setDblParam()

bool OsiVolSolverInterface::setDblParam ( OsiDblParam key,
double value )
virtual

Reimplemented from OsiSolverInterface.

◆ setStrParam()

bool OsiVolSolverInterface::setStrParam ( OsiStrParam key,
const std::string & value )
virtual

Reimplemented from OsiSolverInterface.

◆ getIntParam()

bool OsiVolSolverInterface::getIntParam ( OsiIntParam key,
int & value ) const
virtual

Reimplemented from OsiSolverInterface.

◆ getDblParam()

bool OsiVolSolverInterface::getDblParam ( OsiDblParam key,
double & value ) const
virtual

Reimplemented from OsiSolverInterface.

◆ getStrParam()

bool OsiVolSolverInterface::getStrParam ( OsiStrParam key,
std::string & value ) const
virtual

Reimplemented from OsiSolverInterface.

◆ isAbandoned()

virtual bool OsiVolSolverInterface::isAbandoned ( ) const
virtual

Are there a numerical difficulties?

Implements OsiSolverInterface.

◆ isProvenOptimal()

virtual bool OsiVolSolverInterface::isProvenOptimal ( ) const
virtual

Is optimality proven?

Implements OsiSolverInterface.

◆ isProvenPrimalInfeasible()

virtual bool OsiVolSolverInterface::isProvenPrimalInfeasible ( ) const
virtual

Is primal infeasiblity proven?

Implements OsiSolverInterface.

◆ isProvenDualInfeasible()

virtual bool OsiVolSolverInterface::isProvenDualInfeasible ( ) const
virtual

Is dual infeasiblity proven?

Implements OsiSolverInterface.

◆ isPrimalObjectiveLimitReached()

virtual bool OsiVolSolverInterface::isPrimalObjectiveLimitReached ( ) const
virtual

Is the given primal objective limit reached?

Reimplemented from OsiSolverInterface.

◆ isDualObjectiveLimitReached()

virtual bool OsiVolSolverInterface::isDualObjectiveLimitReached ( ) const
virtual

Is the given dual objective limit reached?

Reimplemented from OsiSolverInterface.

◆ isIterationLimitReached()

virtual bool OsiVolSolverInterface::isIterationLimitReached ( ) const
virtual

Iteration limit reached?

Implements OsiSolverInterface.

◆ getEmptyWarmStart()

virtual CoinWarmStart * OsiVolSolverInterface::getEmptyWarmStart ( ) const
virtual

Get an empty warm start object.

This routine returns an empty warm start object. Its purpose is to provide a way to give a client a warm start object of the appropriate type, which can resized and modified as desired.

Implements OsiSolverInterface.

◆ getWarmStart()

virtual CoinWarmStart * OsiVolSolverInterface::getWarmStart ( ) const
virtual

Get warmstarting information.

Implements OsiSolverInterface.

◆ setWarmStart()

virtual bool OsiVolSolverInterface::setWarmStart ( const CoinWarmStart * warmstart)
virtual

Set warmstarting information.

Return true/false depending on whether the warmstart information was accepted or not.

Implements OsiSolverInterface.

◆ markHotStart()

virtual void OsiVolSolverInterface::markHotStart ( )
virtual

Create a hotstart point of the optimization process.

Reimplemented from OsiSolverInterface.

◆ solveFromHotStart()

virtual void OsiVolSolverInterface::solveFromHotStart ( )
virtual

Optimize starting from the hotstart.

Reimplemented from OsiSolverInterface.

◆ unmarkHotStart()

virtual void OsiVolSolverInterface::unmarkHotStart ( )
virtual

Delete the snapshot.

Reimplemented from OsiSolverInterface.

◆ getNumCols()

virtual int OsiVolSolverInterface::getNumCols ( ) const
inlinevirtual

Get number of columns.

Implements OsiSolverInterface.

Definition at line 167 of file OsiVolSolverInterface.hpp.

◆ getNumRows()

virtual int OsiVolSolverInterface::getNumRows ( ) const
inlinevirtual

Get number of rows.

Implements OsiSolverInterface.

Definition at line 172 of file OsiVolSolverInterface.hpp.

◆ getNumElements()

virtual int OsiVolSolverInterface::getNumElements ( ) const
inlinevirtual

Get number of nonzero elements.

Implements OsiSolverInterface.

Definition at line 177 of file OsiVolSolverInterface.hpp.

◆ getColLower()

virtual const double * OsiVolSolverInterface::getColLower ( ) const
inlinevirtual

Get pointer to array[getNumCols()] of column lower bounds.

Implements OsiSolverInterface.

Definition at line 182 of file OsiVolSolverInterface.hpp.

◆ getColUpper()

virtual const double * OsiVolSolverInterface::getColUpper ( ) const
inlinevirtual

Get pointer to array[getNumCols()] of column upper bounds.

Implements OsiSolverInterface.

Definition at line 185 of file OsiVolSolverInterface.hpp.

◆ getRowSense()

virtual const char * OsiVolSolverInterface::getRowSense ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of row constraint senses.

  • 'L' <= constraint
  • 'E' = constraint
  • 'G' >= constraint
  • 'R' ranged constraint
  • 'N' free constraint

Implements OsiSolverInterface.

Definition at line 196 of file OsiVolSolverInterface.hpp.

◆ getRightHandSide()

virtual const double * OsiVolSolverInterface::getRightHandSide ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of rows right-hand sides.

  • if rowsense()[i] == 'L' then rhs()[i] == rowupper()[i]
  • if rowsense()[i] == 'G' then rhs()[i] == rowlower()[i]
  • if rowsense()[i] == 'R' then rhs()[i] == rowupper()[i]
  • if rowsense()[i] == 'N' then rhs()[i] == 0.0

Implements OsiSolverInterface.

Definition at line 206 of file OsiVolSolverInterface.hpp.

◆ getRowRange()

virtual const double * OsiVolSolverInterface::getRowRange ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of row ranges.

  • if rowsense()[i] == 'R' then rowrange()[i] == rowupper()[i] - rowlower()[i]
  • if rowsense()[i] != 'R' then rowrange()[i] is undefined

Implements OsiSolverInterface.

Definition at line 216 of file OsiVolSolverInterface.hpp.

◆ getRowLower()

virtual const double * OsiVolSolverInterface::getRowLower ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of row lower bounds.

Implements OsiSolverInterface.

Definition at line 219 of file OsiVolSolverInterface.hpp.

◆ getRowUpper()

virtual const double * OsiVolSolverInterface::getRowUpper ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of row upper bounds.

Implements OsiSolverInterface.

Definition at line 222 of file OsiVolSolverInterface.hpp.

◆ getObjCoefficients()

virtual const double * OsiVolSolverInterface::getObjCoefficients ( ) const
inlinevirtual

Get pointer to array[getNumCols()] of objective function coefficients.

Implements OsiSolverInterface.

Definition at line 225 of file OsiVolSolverInterface.hpp.

◆ getObjSense()

virtual double OsiVolSolverInterface::getObjSense ( ) const
inlinevirtual

Get objective function sense (1 for min (default), -1 for max)

Implements OsiSolverInterface.

Definition at line 228 of file OsiVolSolverInterface.hpp.

◆ isContinuous()

virtual bool OsiVolSolverInterface::isContinuous ( int colNumber) const
virtual

Return true if column is continuous.

Implements OsiSolverInterface.

◆ getMatrixByRow()

virtual const CoinPackedMatrix * OsiVolSolverInterface::getMatrixByRow ( ) const
virtual

Get pointer to row-wise copy of matrix.

Implements OsiSolverInterface.

◆ getMatrixByCol()

virtual const CoinPackedMatrix * OsiVolSolverInterface::getMatrixByCol ( ) const
virtual

Get pointer to column-wise copy of matrix.

Implements OsiSolverInterface.

◆ getInfinity()

virtual double OsiVolSolverInterface::getInfinity ( ) const
inlinevirtual

Get solver's value for infinity.

Implements OsiSolverInterface.

Definition at line 257 of file OsiVolSolverInterface.hpp.

◆ getColSolution()

virtual const double * OsiVolSolverInterface::getColSolution ( ) const
inlinevirtual

Get pointer to array[getNumCols()] of primal solution vector.

Implements OsiSolverInterface.

Definition at line 263 of file OsiVolSolverInterface.hpp.

◆ getRowPrice()

virtual const double * OsiVolSolverInterface::getRowPrice ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of dual prices.

Implements OsiSolverInterface.

Definition at line 266 of file OsiVolSolverInterface.hpp.

◆ getReducedCost()

virtual const double * OsiVolSolverInterface::getReducedCost ( ) const
inlinevirtual

Get a pointer to array[getNumCols()] of reduced costs.

Implements OsiSolverInterface.

Definition at line 269 of file OsiVolSolverInterface.hpp.

◆ getRowActivity()

virtual const double * OsiVolSolverInterface::getRowActivity ( ) const
inlinevirtual

Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector.

Implements OsiSolverInterface.

Definition at line 273 of file OsiVolSolverInterface.hpp.

◆ getObjValue()

virtual double OsiVolSolverInterface::getObjValue ( ) const
inlinevirtual

Get objective function value.

Implements OsiSolverInterface.

Definition at line 276 of file OsiVolSolverInterface.hpp.

◆ getIterationCount()

virtual int OsiVolSolverInterface::getIterationCount ( ) const
inlinevirtual

Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver.

Implements OsiSolverInterface.

Definition at line 287 of file OsiVolSolverInterface.hpp.

◆ getDualRays()

virtual std::vector< double * > OsiVolSolverInterface::getDualRays ( int maxNumRays,
bool fullRay = false ) const
virtual

Get as many dual rays as the solver can provide.

(In case of proven primal infeasibility there should be at least one.)

The first getNumRows() ray components will always be associated with the row duals (as returned by getRowPrice()). If fullRay is true, the final getNumCols() entries will correspond to the ray components associated with the nonbasic variables. If the full ray is requested and the method cannot provide it, it will throw an exception.

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumRows() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Implements OsiSolverInterface.

◆ getPrimalRays()

virtual std::vector< double * > OsiVolSolverInterface::getPrimalRays ( int maxNumRays) const
virtual

Get as many primal rays as the solver can provide.

(In case of proven dual infeasibility there should be at least one.)

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumCols() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Implements OsiSolverInterface.

◆ setObjCoeff()

virtual void OsiVolSolverInterface::setObjCoeff ( int elementIndex,
double elementValue )
inlinevirtual

Set an objective function coefficient.

Implements OsiSolverInterface.

Definition at line 338 of file OsiVolSolverInterface.hpp.

◆ setColLower() [1/5]

virtual void OsiVolSolverInterface::setColLower ( int elementIndex,
double elementValue )
inlinevirtual

Set a single column lower bound
Use -DBL_MAX for -infinity.

Implements OsiSolverInterface.

Definition at line 345 of file OsiVolSolverInterface.hpp.

◆ setColUpper() [1/5]

virtual void OsiVolSolverInterface::setColUpper ( int elementIndex,
double elementValue )
inlinevirtual

Set a single column upper bound
Use DBL_MAX for infinity.

Implements OsiSolverInterface.

Definition at line 352 of file OsiVolSolverInterface.hpp.

◆ setColBounds()

virtual void OsiVolSolverInterface::setColBounds ( int elementIndex,
double lower,
double upper )
inlinevirtual

Set a single column lower and upper bound.

Reimplemented from OsiSolverInterface.

Definition at line 357 of file OsiVolSolverInterface.hpp.

◆ setColSetBounds()

virtual void OsiVolSolverInterface::setColSetBounds ( const int * indexFirst,
const int * indexLast,
const double * boundList )
virtual

Set the bounds on a number of columns simultaneously
The default implementation just invokes setColLower() and setColUpper() over and over again.

Parameters
indexFirst,indexLastpointers to the beginning and after the end of the array of the indices of the variables whose either bound changes
boundListthe new lower/upper bound pairs for the variables

Reimplemented from OsiSolverInterface.

◆ setRowLower()

virtual void OsiVolSolverInterface::setRowLower ( int elementIndex,
double elementValue )
inlinevirtual

Set a single row lower bound
Use -DBL_MAX for -infinity.

Implements OsiSolverInterface.

Definition at line 377 of file OsiVolSolverInterface.hpp.

◆ setRowUpper()

virtual void OsiVolSolverInterface::setRowUpper ( int elementIndex,
double elementValue )
inlinevirtual

Set a single row upper bound
Use DBL_MAX for infinity.

Implements OsiSolverInterface.

Definition at line 386 of file OsiVolSolverInterface.hpp.

◆ setRowBounds()

virtual void OsiVolSolverInterface::setRowBounds ( int elementIndex,
double lower,
double upper )
inlinevirtual

Set a single row lower and upper bound.

Reimplemented from OsiSolverInterface.

Definition at line 394 of file OsiVolSolverInterface.hpp.

◆ setRowType()

virtual void OsiVolSolverInterface::setRowType ( int index,
char sense,
double rightHandSide,
double range )
inlinevirtual

Set the type of a single row

Implements OsiSolverInterface.

Definition at line 404 of file OsiVolSolverInterface.hpp.

◆ setRowSetBounds()

virtual void OsiVolSolverInterface::setRowSetBounds ( const int * indexFirst,
const int * indexLast,
const double * boundList )
virtual

Set the bounds on a number of rows simultaneously
The default implementation just invokes setRowLower() and setRowUpper() over and over again.

Parameters
indexFirst,indexLastpointers to the beginning and after the end of the array of the indices of the constraints whose either bound changes
boundListthe new lower/upper bound pairs for the constraints

Reimplemented from OsiSolverInterface.

◆ setRowSetTypes()

virtual void OsiVolSolverInterface::setRowSetTypes ( const int * indexFirst,
const int * indexLast,
const char * senseList,
const double * rhsList,
const double * rangeList )
virtual

Set the type of a number of rows simultaneously
The default implementation just invokes setRowType() over and over again.

Parameters
indexFirst,indexLastpointers to the beginning and after the end of the array of the indices of the constraints whose any characteristics changes
senseListthe new senses
rhsListthe new right hand sides
rangeListthe new ranges

Reimplemented from OsiSolverInterface.

◆ setContinuous() [1/2]

virtual void OsiVolSolverInterface::setContinuous ( int index)
virtual

Set the index-th variable to be a continuous variable.

Implements OsiSolverInterface.

◆ setInteger() [1/2]

virtual void OsiVolSolverInterface::setInteger ( int index)
virtual

Set the index-th variable to be an integer variable.

Implements OsiSolverInterface.

◆ setContinuous() [2/2]

virtual void OsiVolSolverInterface::setContinuous ( const int * indices,
int len )
virtual

Set the variables listed in indices (which is of length len) to be continuous variables.

Reimplemented from OsiSolverInterface.

◆ setInteger() [2/2]

virtual void OsiVolSolverInterface::setInteger ( const int * indices,
int len )
virtual

Set the variables listed in indices (which is of length len) to be integer variables.

Reimplemented from OsiSolverInterface.

◆ setObjSense()

virtual void OsiVolSolverInterface::setObjSense ( double s)
inlinevirtual

Set objective function sense (1 for min (default), -1 for max,)

Implements OsiSolverInterface.

Definition at line 459 of file OsiVolSolverInterface.hpp.

◆ setColSolution()

virtual void OsiVolSolverInterface::setColSolution ( const double * colsol)
virtual

Set the primal solution column values.

colsol[numcols()] is an array of values of the problem column variables. These values are copied to memory owned by the solver object or the solver. They will be returned as the result of colsol() until changed by another call to setColsol() or by a call to any solver routine. Whether the solver makes use of the solution in any way is solver-dependent.

Implements OsiSolverInterface.

◆ setRowPrice()

virtual void OsiVolSolverInterface::setRowPrice ( const double * rowprice)
virtual

Set dual solution vector.

rowprice[numrows()] is an array of values of the problem row dual variables. These values are copied to memory owned by the solver object or the solver. They will be returned as the result of rowprice() until changed by another call to setRowprice() or by a call to any solver routine. Whether the solver makes use of the solution in any way is solver-dependent.

Implements OsiSolverInterface.

◆ addCol() [1/9]

virtual void OsiVolSolverInterface::addCol ( const CoinPackedVectorBase & vec,
const double collb,
const double colub,
const double obj )
virtual

Implements OsiSolverInterface.

◆ addCols() [1/9]

virtual void OsiVolSolverInterface::addCols ( const int numcols,
const CoinPackedVectorBase *const * cols,
const double * collb,
const double * colub,
const double * obj )
virtual

Reimplemented from OsiSolverInterface.

◆ deleteCols()

virtual void OsiVolSolverInterface::deleteCols ( const int num,
const int * colIndices )
virtual

Implements OsiSolverInterface.

◆ addRow() [1/12]

virtual void OsiVolSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const double rowlb,
const double rowub )
virtual

Implements OsiSolverInterface.

◆ addRow() [2/12]

virtual void OsiVolSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const char rowsen,
const double rowrhs,
const double rowrng )
virtual

Implements OsiSolverInterface.

◆ addRows() [1/12]

virtual void OsiVolSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const double * rowlb,
const double * rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [2/12]

virtual void OsiVolSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const char * rowsen,
const double * rowrhs,
const double * rowrng )
virtual

Reimplemented from OsiSolverInterface.

◆ deleteRows()

virtual void OsiVolSolverInterface::deleteRows ( const int num,
const int * rowIndices )
virtual

Implements OsiSolverInterface.

◆ initFromRlbRub()

void OsiVolSolverInterface::initFromRlbRub ( const int rownum,
const double * rowlb,
const double * rowub )
protected

◆ initFromRhsSenseRange()

void OsiVolSolverInterface::initFromRhsSenseRange ( const int rownum,
const char * rowsen,
const double * rowrhs,
const double * rowrng )
protected

◆ initFromClbCubObj()

void OsiVolSolverInterface::initFromClbCubObj ( const int colnum,
const double * collb,
const double * colub,
const double * obj )
protected

◆ loadProblem() [1/4]

virtual void OsiVolSolverInterface::loadProblem ( const CoinPackedMatrix & matrix,
const double * collb,
const double * colub,
const double * obj,
const double * rowlb,
const double * rowub )
virtual

Load in an problem by copying the arguments (the constraints on the rows are given by lower and upper bounds).

If a pointer is 0 then the following values are the default:

  • colub: all columns have upper bound infinity
  • collb: all columns have lower bound 0
  • rowub: all rows have upper bound infinity
  • rowlb: all rows have lower bound -infinity
  • obj: all variables have 0 objective coefficient

Implements OsiSolverInterface.

◆ assignProblem() [1/2]

virtual void OsiVolSolverInterface::assignProblem ( CoinPackedMatrix *& matrix,
double *& collb,
double *& colub,
double *& obj,
double *& rowlb,
double *& rowub )
virtual

Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by lower and upper bounds).

For default values see the previous method.
WARNING: The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

◆ loadProblem() [2/4]

virtual void OsiVolSolverInterface::loadProblem ( const CoinPackedMatrix & matrix,
const double * collb,
const double * colub,
const double * obj,
const char * rowsen,
const double * rowrhs,
const double * rowrng )
virtual

Load in an problem by copying the arguments (the constraints on the rows are given by sense/rhs/range triplets).

If a pointer is 0 then the following values are the default:

  • colub: all columns have upper bound infinity
  • collb: all columns have lower bound 0
  • obj: all variables have 0 objective coefficient
  • rowsen: all rows are >=
  • rowrhs: all right hand sides are 0
  • rowrng: 0 for the ranged rows

Implements OsiSolverInterface.

◆ assignProblem() [2/2]

virtual void OsiVolSolverInterface::assignProblem ( CoinPackedMatrix *& matrix,
double *& collb,
double *& colub,
double *& obj,
char *& rowsen,
double *& rowrhs,
double *& rowrng )
virtual

Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by sense/rhs/range triplets).

For default values see the previous method.
WARNING: The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

◆ loadProblem() [3/4]

virtual void OsiVolSolverInterface::loadProblem ( const int numcols,
const int numrows,
const int * start,
const int * index,
const double * value,
const double * collb,
const double * colub,
const double * obj,
const double * rowlb,
const double * rowub )
virtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

◆ loadProblem() [4/4]

virtual void OsiVolSolverInterface::loadProblem ( const int numcols,
const int numrows,
const int * 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 )
virtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

◆ readMps() [1/5]

virtual int OsiVolSolverInterface::readMps ( const char * filename,
const char * extension = "mps" )
virtual

Read an mps file from the given filename.

Reimplemented from OsiSolverInterface.

◆ writeMps()

virtual void OsiVolSolverInterface::writeMps ( const char * filename,
const char * extension = "mps",
double objSense = 0.0 ) const
virtual

Write the problem into an mps file of the given filename.

If objSense is non zero then -1.0 forces the code to write a maximization objective and +1.0 to write a minimization one. If 0.0 then solver can do what it wants

Implements OsiSolverInterface.

◆ volprob()

VOL_problem * OsiVolSolverInterface::volprob ( )
inline

Get pointer to Vol model.

Definition at line 681 of file OsiVolSolverInterface.hpp.

◆ clone()

virtual OsiSolverInterface * OsiVolSolverInterface::clone ( bool copyData = true) const
virtual

Clone.

Implements OsiSolverInterface.

◆ operator=()

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

Assignment operator.

◆ applyRowCut()

virtual void OsiVolSolverInterface::applyRowCut ( const OsiRowCut & rc)
protectedvirtual

Apply a row cut (append to constraint matrix).

Implements OsiSolverInterface.

◆ applyColCut()

virtual void OsiVolSolverInterface::applyColCut ( const OsiColCut & cc)
protectedvirtual

Apply a column cut (adjust one or more bounds).

Implements OsiSolverInterface.

◆ compute_rc()

virtual int OsiVolSolverInterface::compute_rc ( const VOL_dvector & u,
VOL_dvector & rc )
privatevirtual

compute reduced costs

Implements VOL_user_hooks.

◆ solve_subproblem()

virtual int OsiVolSolverInterface::solve_subproblem ( const VOL_dvector & dual,
const VOL_dvector & rc,
double & lcost,
VOL_dvector & x,
VOL_dvector & v,
double & pcost )
privatevirtual

Solve the subproblem for the subgradient step.

Implements VOL_user_hooks.

◆ heuristics()

virtual int OsiVolSolverInterface::heuristics ( const VOL_problem & ,
const VOL_dvector & ,
double & heur_val )
inlineprivatevirtual

Starting from the primal vector x, run a heuristic to produce an integer solution.

This is not done in LP solving.

Implements VOL_user_hooks.

Definition at line 730 of file OsiVolSolverInterface.hpp.

◆ updateRowMatrix_()

void OsiVolSolverInterface::updateRowMatrix_ ( ) const
private

Update the row ordered matrix from the column ordered one.

◆ updateColMatrix_()

void OsiVolSolverInterface::updateColMatrix_ ( ) const
private

Update the column ordered matrix from the row ordered one.

◆ checkData_()

void OsiVolSolverInterface::checkData_ ( ) const
private

Test whether the Volume Algorithm can be applied to the given problem.

◆ compute_rc_()

void OsiVolSolverInterface::compute_rc_ ( const double * u,
double * rc ) const
private

Compute the reduced costs (rc) with respect to the dual values given in u.

◆ gutsOfDestructor_()

void OsiVolSolverInterface::gutsOfDestructor_ ( )
private

A method deleting every member data.

◆ rowRimAllocator_()

void OsiVolSolverInterface::rowRimAllocator_ ( )
private

A method allocating sufficient space for the rim vectors corresponding to the rows.

◆ colRimAllocator_()

void OsiVolSolverInterface::colRimAllocator_ ( )
private

A method allocating sufficient space for the rim vectors corresponding to the columns.

◆ rowRimResize_()

void OsiVolSolverInterface::rowRimResize_ ( const int newSize)
private

Reallocate the rim arrays corresponding to the rows.

◆ colRimResize_()

void OsiVolSolverInterface::colRimResize_ ( const int newSize)
private

Reallocate the rim arrays corresponding to the columns.

◆ convertBoundsToSenses_()

void OsiVolSolverInterface::convertBoundsToSenses_ ( )
private

For each row convert LB/UB style row constraints to sense/rhs style.

◆ convertSensesToBounds_()

void OsiVolSolverInterface::convertSensesToBounds_ ( )
private

For each row convert sense/rhs style row constraints to LB/UB style.

◆ test_zero_one_minusone_()

bool OsiVolSolverInterface::test_zero_one_minusone_ ( const CoinPackedMatrix & m) const
private

test whether the given matrix is 0/1/-1 entries only.

◆ setColLower() [2/5]

virtual void OsiSolverInterface::setColLower ( int elementIndex,
double elementValue )
virtual

Implements OsiSolverInterface.

◆ setColLower() [3/5]

virtual void OsiSolverInterface::setColLower ( const double * array)
virtual

Reimplemented from OsiSolverInterface.

◆ setColLower() [4/5]

virtual void OsiSolverInterface::setColLower ( int elementIndex,
double elementValue )
virtual

Implements OsiSolverInterface.

◆ setColLower() [5/5]

virtual void OsiSolverInterface::setColLower ( const double * array)
virtual

Reimplemented from OsiSolverInterface.

◆ setColUpper() [2/5]

virtual void OsiSolverInterface::setColUpper ( int elementIndex,
double elementValue )
virtual

Implements OsiSolverInterface.

◆ setColUpper() [3/5]

virtual void OsiSolverInterface::setColUpper ( const double * array)
virtual

Reimplemented from OsiSolverInterface.

◆ setColUpper() [4/5]

virtual void OsiSolverInterface::setColUpper ( int elementIndex,
double elementValue )
virtual

Implements OsiSolverInterface.

◆ setColUpper() [5/5]

virtual void OsiSolverInterface::setColUpper ( const double * array)
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [2/9]

virtual void OsiSolverInterface::addCol ( const CoinPackedVectorBase & vec,
const double collb,
const double colub,
const double obj )
virtual

Implements OsiSolverInterface.

◆ addCol() [3/9]

virtual void OsiSolverInterface::addCol ( const CoinPackedVectorBase & vec,
const double collb,
const double colub,
const double obj,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [4/9]

virtual void OsiSolverInterface::addCol ( int numberElements,
const int * rows,
const double * elements,
const double collb,
const double colub,
const double obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [5/9]

virtual void OsiSolverInterface::addCol ( int numberElements,
const int * rows,
const double * elements,
const double collb,
const double colub,
const double obj,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [6/9]

virtual void OsiSolverInterface::addCol ( const CoinPackedVectorBase & vec,
const double collb,
const double colub,
const double obj )
virtual

Implements OsiSolverInterface.

◆ addCol() [7/9]

virtual void OsiSolverInterface::addCol ( const CoinPackedVectorBase & vec,
const double collb,
const double colub,
const double obj,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [8/9]

virtual void OsiSolverInterface::addCol ( int numberElements,
const int * rows,
const double * elements,
const double collb,
const double colub,
const double obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCol() [9/9]

virtual void OsiSolverInterface::addCol ( int numberElements,
const int * rows,
const double * elements,
const double collb,
const double colub,
const double obj,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addCols() [2/9]

virtual void OsiSolverInterface::addCols ( const int numcols,
const CoinPackedVectorBase *const * cols,
const double * collb,
const double * colub,
const double * obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCols() [3/9]

virtual void OsiSolverInterface::addCols ( const int numcols,
const CoinBigIndex * columnStarts,
const int * rows,
const double * elements,
const double * collb,
const double * colub,
const double * obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCols() [4/9]

void OsiSolverInterface::addCols ( const CoinBuild & buildObject)

◆ addCols() [5/9]

int OsiSolverInterface::addCols ( CoinModel & modelObject)

◆ addCols() [6/9]

virtual void OsiSolverInterface::addCols ( const int numcols,
const CoinPackedVectorBase *const * cols,
const double * collb,
const double * colub,
const double * obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCols() [7/9]

virtual void OsiSolverInterface::addCols ( const int numcols,
const CoinBigIndex * columnStarts,
const int * rows,
const double * elements,
const double * collb,
const double * colub,
const double * obj )
virtual

Reimplemented from OsiSolverInterface.

◆ addCols() [8/9]

void OsiSolverInterface::addCols ( const CoinBuild & buildObject)

◆ addCols() [9/9]

int OsiSolverInterface::addCols ( CoinModel & modelObject)

◆ addRow() [3/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const double rowlb,
const double rowub )
virtual

Implements OsiSolverInterface.

◆ addRow() [4/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const double rowlb,
const double rowub,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addRow() [5/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const char rowsen,
const double rowrhs,
const double rowrng )
virtual

Implements OsiSolverInterface.

◆ addRow() [6/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const char rowsen,
const double rowrhs,
const double rowrng,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addRow() [7/12]

virtual void OsiSolverInterface::addRow ( int numberElements,
const int * columns,
const double * element,
const double rowlb,
const double rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRow() [8/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const double rowlb,
const double rowub )
virtual

Implements OsiSolverInterface.

◆ addRow() [9/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const double rowlb,
const double rowub,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addRow() [10/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const char rowsen,
const double rowrhs,
const double rowrng )
virtual

Implements OsiSolverInterface.

◆ addRow() [11/12]

virtual void OsiSolverInterface::addRow ( const CoinPackedVectorBase & vec,
const char rowsen,
const double rowrhs,
const double rowrng,
std::string name )
virtual

Reimplemented from OsiSolverInterface.

◆ addRow() [12/12]

virtual void OsiSolverInterface::addRow ( int numberElements,
const int * columns,
const double * element,
const double rowlb,
const double rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [3/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const double * rowlb,
const double * rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [4/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const char * rowsen,
const double * rowrhs,
const double * rowrng )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [5/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinBigIndex * rowStarts,
const int * columns,
const double * element,
const double * rowlb,
const double * rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [6/12]

void OsiSolverInterface::addRows ( const CoinBuild & buildObject)

◆ addRows() [7/12]

int OsiSolverInterface::addRows ( CoinModel & modelObject)

◆ addRows() [8/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const double * rowlb,
const double * rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [9/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinPackedVectorBase *const * rows,
const char * rowsen,
const double * rowrhs,
const double * rowrng )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [10/12]

virtual void OsiSolverInterface::addRows ( const int numrows,
const CoinBigIndex * rowStarts,
const int * columns,
const double * element,
const double * rowlb,
const double * rowub )
virtual

Reimplemented from OsiSolverInterface.

◆ addRows() [11/12]

void OsiSolverInterface::addRows ( const CoinBuild & buildObject)

◆ addRows() [12/12]

int OsiSolverInterface::addRows ( CoinModel & modelObject)

◆ readMps() [2/5]

virtual int OsiSolverInterface::readMps ( const char * filename,
const char * extension = "mps" )
virtual

Reimplemented from OsiSolverInterface.

◆ readMps() [3/5]

virtual int OsiSolverInterface::readMps ( const char * filename,
const char * extension,
int & numberSets,
CoinSet **& sets )
virtual

Reimplemented from OsiSolverInterface.

◆ readMps() [4/5]

virtual int OsiSolverInterface::readMps ( const char * filename,
const char * extension = "mps" )
virtual

Reimplemented from OsiSolverInterface.

◆ readMps() [5/5]

virtual int OsiSolverInterface::readMps ( const char * filename,
const char * extension,
int & numberSets,
CoinSet **& sets )
virtual

Reimplemented from OsiSolverInterface.

Friends And Related Symbol Documentation

◆ OsiVolSolverInterfaceUnitTest

void OsiVolSolverInterfaceUnitTest ( const std::string & mpsDir,
const std::string & netlibDir )
friend

A function that tests the methods in the OsiVolSolverInterface class.

Member Data Documentation

◆ rowMatrixCurrent_

bool OsiVolSolverInterface::rowMatrixCurrent_
mutableprivate

A flag indicating whether the row ordered matrix is up-to-date.

Definition at line 786 of file OsiVolSolverInterface.hpp.

◆ rowMatrix_

CoinPackedMatrix OsiVolSolverInterface::rowMatrix_
mutableprivate

The problem matrix in a row ordered form.

Definition at line 788 of file OsiVolSolverInterface.hpp.

◆ colMatrixCurrent_

bool OsiVolSolverInterface::colMatrixCurrent_
mutableprivate

A flag indicating whether the column ordered matrix is up-to-date.

Definition at line 790 of file OsiVolSolverInterface.hpp.

◆ colMatrix_

CoinPackedMatrix OsiVolSolverInterface::colMatrix_
mutableprivate

The problem matrix in a column ordered form.

Definition at line 792 of file OsiVolSolverInterface.hpp.

◆ isZeroOneMinusOne_

bool OsiVolSolverInterface::isZeroOneMinusOne_
private

An indicator whether the matrix is 0/1/-1.

Definition at line 799 of file OsiVolSolverInterface.hpp.

◆ rowMatrixOneMinusOne_

OsiVolMatrixOneMinusOne_* OsiVolSolverInterface::rowMatrixOneMinusOne_
private

The row ordered matrix without the elements.

Definition at line 801 of file OsiVolSolverInterface.hpp.

◆ colMatrixOneMinusOne_

OsiVolMatrixOneMinusOne_* OsiVolSolverInterface::colMatrixOneMinusOne_
private

The column ordered matrix without the elements.

Definition at line 803 of file OsiVolSolverInterface.hpp.

◆ colupper_

double* OsiVolSolverInterface::colupper_
private

Pointer to dense vector of structural variable upper bounds.

Definition at line 810 of file OsiVolSolverInterface.hpp.

◆ collower_

double* OsiVolSolverInterface::collower_
private

Pointer to dense vector of structural variable lower bounds.

Definition at line 812 of file OsiVolSolverInterface.hpp.

◆ continuous_

bool* OsiVolSolverInterface::continuous_
private

Pointer to dense vector of bool to indicate if column is continuous.

Definition at line 814 of file OsiVolSolverInterface.hpp.

◆ rowupper_

double* OsiVolSolverInterface::rowupper_
private

Pointer to dense vector of slack variable upper bounds.

Definition at line 816 of file OsiVolSolverInterface.hpp.

◆ rowlower_

double* OsiVolSolverInterface::rowlower_
private

Pointer to dense vector of slack variable lower bounds.

Definition at line 818 of file OsiVolSolverInterface.hpp.

◆ rowsense_

char* OsiVolSolverInterface::rowsense_
private

Pointer to dense vector of row sense indicators.

Definition at line 820 of file OsiVolSolverInterface.hpp.

◆ rhs_

double* OsiVolSolverInterface::rhs_
private

Pointer to dense vector of row right-hand side values.

Definition at line 822 of file OsiVolSolverInterface.hpp.

◆ rowrange_

double* OsiVolSolverInterface::rowrange_
private

Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows).

Definition at line 825 of file OsiVolSolverInterface.hpp.

◆ objcoeffs_

double* OsiVolSolverInterface::objcoeffs_
private

Pointer to dense vector of objective coefficients.

Definition at line 827 of file OsiVolSolverInterface.hpp.

◆ objsense_

double OsiVolSolverInterface::objsense_
private

Sense of objective (1 for min; -1 for max)

Definition at line 832 of file OsiVolSolverInterface.hpp.

◆ colsol_

double* OsiVolSolverInterface::colsol_
private

Pointer to dense vector of primal structural variable values.

Definition at line 838 of file OsiVolSolverInterface.hpp.

◆ rowprice_

double* OsiVolSolverInterface::rowprice_
private

Pointer to dense vector of dual row variable values.

Definition at line 840 of file OsiVolSolverInterface.hpp.

◆ rc_

double* OsiVolSolverInterface::rc_
private

Pointer to dense vector of reduced costs.

Definition at line 842 of file OsiVolSolverInterface.hpp.

◆ lhs_

double* OsiVolSolverInterface::lhs_
private

Pointer to dense vector of left hand sides (row activity levels)

Definition at line 844 of file OsiVolSolverInterface.hpp.

◆ lagrangeanCost_

double OsiVolSolverInterface::lagrangeanCost_
private

The Lagrangean cost, a lower bound on the objective value.

Definition at line 846 of file OsiVolSolverInterface.hpp.

◆ rowpriceHotStart_

double* OsiVolSolverInterface::rowpriceHotStart_
private

An array to store the hotstart information between solveHotStart() calls.

Definition at line 852 of file OsiVolSolverInterface.hpp.

◆ maxNumrows_

int OsiVolSolverInterface::maxNumrows_
private

allocated size of the row related rim vectors

Definition at line 855 of file OsiVolSolverInterface.hpp.

◆ maxNumcols_

int OsiVolSolverInterface::maxNumcols_
private

allocated size of the column related rim vectors

Definition at line 857 of file OsiVolSolverInterface.hpp.

◆ volprob_

VOL_problem OsiVolSolverInterface::volprob_
private

The volume solver.

Definition at line 860 of file OsiVolSolverInterface.hpp.


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