#include <OsiCpxSolverInterface.hpp>
Inheritance diagram for OsiCpxSolverInterface:
CPLEX specific public interfaces | |
enum | keepCachedFlag { KEEPCACHED_NONE = 0, KEEPCACHED_COLUMN = 1, KEEPCACHED_ROW = 2, KEEPCACHED_MATRIX = 4, KEEPCACHED_RESULTS = 8, KEEPCACHED_PROBLEM = KEEPCACHED_COLUMN | KEEPCACHED_ROW | KEEPCACHED_MATRIX, KEEPCACHED_ALL = KEEPCACHED_PROBLEM | KEEPCACHED_RESULTS, FREECACHED_COLUMN = KEEPCACHED_PROBLEM & !KEEPCACHED_COLUMN, FREECACHED_ROW = KEEPCACHED_PROBLEM & !KEEPCACHED_ROW, FREECACHED_MATRIX = KEEPCACHED_PROBLEM & !KEEPCACHED_MATRIX, FREECACHED_RESULTS = KEEPCACHED_ALL & !KEEPCACHED_RESULTS } |
Get pointer to CPLEX model and free all specified cached data entries (combined with logical or-operator '|' ):. More... | |
CPXLPptr | getLpPtr (int keepCached=KEEPCACHED_NONE) |
Get pointer to CPLEX model and free all specified cached data entries (combined with logical or-operator '|' ):. | |
Public Member Functions | |
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. | |
const char * | getCtype () const |
return a vector of variable types (continous, binary, integer) | |
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 | |
CoinWarmStart * | getEmptyWarmStart () const |
Get an empty warm start object. | |
virtual CoinWarmStart * | getWarmStart () 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 CoinPackedMatrix * | getMatrixByRow () const |
Get pointer to row-wise copy of matrix. | |
virtual const CoinPackedMatrix * | getMatrixByCol () 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) 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 | setObjCoeffSet (const int *indexFirst, const int *indexLast, const double *coeffList) |
Set a a set of objective function coefficients. | |
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 The default implementation just invokes setColLower() and setColUpper() . | |
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 The default implementation just invokes setRowLower() and setRowUpper() . | |
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() and over and over again. | |
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. | |
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) |
Add a column (primal variable) to the problem. | |
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. | |
virtual void | deleteCols (const int num, const int *colIndices) |
Remove a set of columns (primal variables) from the problem. | |
virtual void | addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub) |
Add a row (constraint) to the problem. | |
virtual void | addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng) |
Add a column (primal variable) to the problem. | |
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. | |
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. | |
virtual void | deleteRows (const int num, const int *rowIndices) |
Delete a set of rows (constraints) from the problem. | |
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. | |
CPLEX specific public interfaces | |
CPXENVptr | getEnvironmentPtr () |
Method to access CPLEX environment pointer. | |
Constructors and destructor | |
OsiCpxSolverInterface () | |
Default Constructor. | |
virtual OsiSolverInterface * | clone (bool copyData=true) const |
Clone. | |
OsiCpxSolverInterface (const OsiCpxSolverInterface &) | |
Copy constructor. | |
OsiCpxSolverInterface & | operator= (const OsiCpxSolverInterface &rhs) |
Assignment operator. | |
virtual | ~OsiCpxSolverInterface () |
Destructor. | |
virtual void | reset () |
Resets as if default constructor. | |
OsiSimplexInterface methods | |
Cplex adds a slack with coeff +1 in "<=" and "=" constraints, with coeff -1 in ">=", slack being non negative. We switch in order to get a "Clp tableau" where all the slacks have coefficient +1 in the original tableau. If a slack for ">=" is non basic, invB is not changed; column of the slack in the optimal tableau is flipped. If a slack for ">=" is basic, corresp. row of invB is flipped; whole row of the optimal tableau is flipped; then whole column for the slack in opt tableau is flipped. Ranged rows are not supported. It might work, but no garantee is given.
Code implemented only for Cplex9.0 and higher, lower version number of Cplex will abort the code. | |
virtual int | canDoSimplexInterface () const |
Returns 1 if can just do getBInv etc 2 if has all OsiSimplex methods and 0 if it has none. | |
virtual void | enableSimplexInterface (int doingPrimal) |
Useless function, defined only for compatibility with OsiSimplexInterface. | |
virtual void | disableSimplexInterface () |
Useless function, defined only for compatibility with OsiSimplexInterface. | |
virtual void | enableFactorization () const |
Useless function, defined only for compatibility with OsiSimplexInterface. | |
virtual void | disableFactorization () const |
Useless function, defined only for compatibility with OsiSimplexInterface. | |
virtual bool | basisIsAvailable () const |
Returns true if a basis is available. | |
virtual void | getBasisStatus (int *cstat, int *rstat) const |
Returns a basis status of the structural/artificial variables At present as warm start i.e 0: free, 1: basic, 2: upper, 3: lower. | |
virtual void | getBInvARow (int row, double *z, double *slack=NULL) const |
Get a row of the tableau (slack part in slack if not NULL). | |
virtual void | getBInvRow (int row, double *z) const |
Get a row of the basis inverse. | |
virtual void | getBInvACol (int col, double *vec) const |
Get a column of the tableau. | |
virtual void | getBInvCol (int col, double *vec) const |
Get a column of the basis inverse. | |
virtual void | getBasics (int *index) const |
Get indices of the pivot variable in each row (order of indices corresponds to the order of elements in a vector retured by getBInvACol() and getBInvCol()). | |
Static Public Member Functions | |
Static instance counter methods | |
void | incrementInstanceCounter () |
CPLEX has a context which must be created prior to all other CPLEX calls. | |
void | decrementInstanceCounter () |
CPLEX has a context which should be deleted after CPLEX calls. | |
unsigned int | getNumInstances () |
Return the number of instances of instantiated objects using CPLEX services. | |
Protected Member Functions | |
Protected methods | |
virtual void | applyRowCut (const OsiRowCut &rc) |
Apply a row cut. Return true if cut was applied. | |
virtual void | applyColCut (const OsiColCut &cc) |
Apply a column cut (bound adjustment). | |
Private Member Functions | |
Private static class functions | |
void | switchToLP () |
switches CPLEX to prob type LP | |
void | switchToMIP () |
switches CPLEX to prob type MIP | |
void | resizeColType (int minsize) |
resizes coltype_ vector to be able to store at least minsize elements | |
void | freeColType () |
frees colsize_ vector | |
Private methods | |
CPXLPptr | getMutableLpPtr () const |
Get LP Pointer for const methods. | |
void | gutsOfCopy (const OsiCpxSolverInterface &source) |
The real work of a copy constructor (used by copy and assignment). | |
void | gutsOfConstructor () |
The real work of the constructor. | |
void | gutsOfDestructor () |
The real work of the destructor. | |
void | freeCachedColRim () |
free cached column rim vectors | |
void | freeCachedRowRim () |
free cached row rim vectors | |
void | freeCachedResults () |
free cached result vectors | |
void | freeCachedMatrix () |
free cached matrices | |
void | freeCachedData (int keepCached=KEEPCACHED_NONE) |
free all cached data (except specified entries, see getLpPtr()) | |
void | freeAllMemory () |
free all allocated memory | |
void | printBounds () |
Just for testing purposes. | |
Private Attributes | |
Private member data | |
CPXLPptr | lp_ |
CPLEX model represented by this class instance. | |
int * | hotStartCStat_ |
Hotstart information. | |
int | hotStartCStatSize_ |
CPLEX model represented by this class instance. | |
int * | hotStartRStat_ |
CPLEX model represented by this class instance. | |
int | hotStartRStatSize_ |
CPLEX model represented by this class instance. | |
int | hotStartMaxIteration_ |
CPLEX model represented by this class instance. | |
Cached information derived from the CPLEX model | |
double * | obj_ |
Pointer to objective vector. | |
double * | collower_ |
Pointer to dense vector of variable lower bounds. | |
double * | colupper_ |
Pointer to dense vector of 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 * | rowlower_ |
Pointer to dense vector of row lower bounds. | |
double * | rowupper_ |
Pointer to dense vector of row upper bounds. | |
double * | colsol_ |
Pointer to primal solution vector. | |
double * | rowsol_ |
Pointer to dual solution vector. | |
double * | redcost_ |
Pointer to reduced cost vector. | |
double * | rowact_ |
Pointer to row activity (slack) vector. | |
CoinPackedMatrix * | matrixByRow_ |
Pointer to row-wise copy of problem matrix coefficients. | |
CoinPackedMatrix * | matrixByCol_ |
Pointer to row-wise copy of problem matrix coefficients. | |
Additional information needed for storing MIP problems | |
char * | coltype_ |
Pointer to dense vector of variable types (continous, binary, integer). | |
int | coltypesize_ |
Size of allocated memory for coltype_. | |
bool | probtypemip_ |
Stores whether CPLEX' prob type is currently set to MIP. | |
Static Private Attributes | |
Private static class data | |
CPXENVptr | env_ |
CPLEX environment pointer. | |
int | cpxVersionMajor_ |
CPLEX version. | |
int | cpxVersionMinor_ |
CPLEX environment pointer. | |
int | cpxVersionMinorMinor_ |
CPLEX environment pointer. | |
unsigned int | numInstances_ |
Number of live problem instances. | |
Friends | |
void | OsiCpxSolverInterfaceUnitTest (const std::string &mpsDir, const std::string &netlibDir) |
A function that tests the methods in the OsiOslSolverInterface class. |
Instantiation of OsiCpxSolverInterface for CPLEX
Definition at line 35 of file OsiCpxSolverInterface.hpp.
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Get pointer to CPLEX model and free all specified cached data entries (combined with logical or-operator '|' ):.
Definition at line 591 of file OsiCpxSolverInterface.hpp. |
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Default Constructor.
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Copy constructor.
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Destructor.
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Solve initial LP relaxation.
Implements OsiSolverInterface. |
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Resolve an LP relaxation after problem modification.
Implements OsiSolverInterface. |
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Invoke solver's built-in enumeration algorithm.
Implements OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Reimplemented from OsiSolverInterface. |
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Are there a numerical difficulties?
Implements OsiSolverInterface. |
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Is optimality proven?
Implements OsiSolverInterface. |
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Is primal infeasiblity proven?
Implements OsiSolverInterface. |
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Is dual infeasiblity proven?
Implements OsiSolverInterface. |
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Is the given primal objective limit reached?
Implements OsiSolverInterface. |
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Is the given dual objective limit reached?
Implements OsiSolverInterface. |
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Iteration limit reached?
Implements OsiSolverInterface. |
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Get an empty warm start object. This routine returns an empty CoinWarmStartBasis object. Its purpose is to provide a way to give a client a warm start basis object of the appropriate type, which can resized and modified as desired. Implements OsiSolverInterface. Definition at line 112 of file OsiCpxSolverInterface.hpp. |
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Get warmstarting information.
Implements OsiSolverInterface. |
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Set warmstarting information. Return true/false depending on whether the warmstart information was accepted or not. Implements OsiSolverInterface. |
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Create a hotstart point of the optimization process.
Reimplemented from OsiSolverInterface. |
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Optimize starting from the hotstart.
Reimplemented from OsiSolverInterface. |
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Delete the snapshot.
Reimplemented from OsiSolverInterface. |
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Get number of columns.
Implements OsiSolverInterface. |
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Get number of rows.
Implements OsiSolverInterface. |
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Get number of nonzero elements.
Implements OsiSolverInterface. |
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Get pointer to array[getNumCols()] of column lower bounds.
Implements OsiSolverInterface. |
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Get pointer to array[getNumCols()] of column upper bounds.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of row constraint senses.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of rows right-hand sides.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of row ranges.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of row lower bounds.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of row upper bounds.
Implements OsiSolverInterface. |
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Get pointer to array[getNumCols()] of objective function coefficients.
Implements OsiSolverInterface. |
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Get objective function sense (1 for min (default), -1 for max).
Implements OsiSolverInterface. |
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Return true if column is continuous.
Implements OsiSolverInterface. |
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Get pointer to row-wise copy of matrix.
Implements OsiSolverInterface. |
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Get pointer to column-wise copy of matrix.
Implements OsiSolverInterface. |
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Get solver's value for infinity.
Implements OsiSolverInterface. |
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Get pointer to array[getNumCols()] of primal solution vector.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of dual prices.
Implements OsiSolverInterface. |
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Get a pointer to array[getNumCols()] of reduced costs.
Implements OsiSolverInterface. |
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Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector.
Implements OsiSolverInterface. |
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Get objective function value.
Implements OsiSolverInterface. |
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Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver.
Implements OsiSolverInterface. |
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Get as many dual rays as the solver can provide. (In case of proven primal infeasibility there should be at least one.)
NOTE for implementers of solver interfaces:
NOTE for users of solver interfaces: Implements OsiSolverInterface. |
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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:
NOTE for users of solver interfaces: Implements OsiSolverInterface. |
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Set an objective function coefficient.
Implements OsiSolverInterface. |
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Set a a set of objective function coefficients.
Reimplemented from OsiSolverInterface. |
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Set a single column lower bound
Implements OsiSolverInterface. |
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Set a single column upper bound
Implements OsiSolverInterface. |
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Set a single column lower and upper bound
Reimplemented from OsiSolverInterface. |
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Set the bounds on a number of columns simultaneously
Reimplemented from OsiSolverInterface. |
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Set a single row lower bound
Implements OsiSolverInterface. |
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Set a single row upper bound
Implements OsiSolverInterface. |
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Set a single row lower and upper bound
Reimplemented from OsiSolverInterface. |
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Set the type of a single row
Implements OsiSolverInterface. |
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Set the bounds on a number of rows simultaneously
Reimplemented from OsiSolverInterface. |
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Set the type of a number of rows simultaneously
Reimplemented from OsiSolverInterface. |
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Set the index-th variable to be a continuous variable.
Implements OsiSolverInterface. |
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Set the index-th variable to be an integer variable.
Implements OsiSolverInterface. |
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Set the variables listed in indices (which is of length len) to be continuous variables.
Reimplemented from OsiSolverInterface. |
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Set the variables listed in indices (which is of length len) to be integer variables.
Reimplemented from OsiSolverInterface. |
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Set objective function sense (1 for min (default), -1 for max,).
Implements OsiSolverInterface. |
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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. |
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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. |
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Add a column (primal variable) to the problem.
Implements OsiSolverInterface. |
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Add a set of columns (primal variables) to the problem. The default implementation simply makes repeated calls to addCol(). Reimplemented from OsiSolverInterface. |
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Remove a set of columns (primal variables) from the problem. The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted variables are nonbasic. Implements OsiSolverInterface. |
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Add a row (constraint) to the problem.
Implements OsiSolverInterface. |
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Add a column (primal variable) to the problem.
Implements OsiSolverInterface. |
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Add a set of rows (constraints) to the problem. The default implementation simply makes repeated calls to addRow(). Reimplemented from OsiSolverInterface. |
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Add a set of rows (constraints) to the problem. The default implementation simply makes repeated calls to addRow(). Reimplemented from OsiSolverInterface. |
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Delete a set of rows (constraints) from the problem. The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted rows are loose. Implements OsiSolverInterface. |
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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:
Implements OsiSolverInterface. |
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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. Implements OsiSolverInterface. |
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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:
Implements OsiSolverInterface. |
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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. Implements OsiSolverInterface. |
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Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).
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Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).
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Read an mps file from the given filename.
Reimplemented from OsiSolverInterface. |
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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. |
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Get pointer to CPLEX model and free all specified cached data entries (combined with logical or-operator '|' ):.
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Method to access CPLEX environment pointer.
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return a vector of variable types (continous, binary, integer)
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CPLEX has a context which must be created prior to all other CPLEX calls. This method:
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CPLEX has a context which should be deleted after CPLEX calls. This method:
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Return the number of instances of instantiated objects using CPLEX services.
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Clone.
Implements OsiSolverInterface. |
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Assignment operator.
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Resets as if default constructor.
Reimplemented from OsiSolverInterface. |
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Returns 1 if can just do getBInv etc 2 if has all OsiSimplex methods and 0 if it has none.
Reimplemented from OsiSolverInterface. |
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Useless function, defined only for compatibility with OsiSimplexInterface.
Definition at line 702 of file OsiCpxSolverInterface.hpp. |
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Useless function, defined only for compatibility with OsiSimplexInterface.
Reimplemented from OsiSolverInterface. Definition at line 707 of file OsiCpxSolverInterface.hpp. |
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Useless function, defined only for compatibility with OsiSimplexInterface.
Reimplemented from OsiSolverInterface. Definition at line 712 of file OsiCpxSolverInterface.hpp. |
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Useless function, defined only for compatibility with OsiSimplexInterface.
Reimplemented from OsiSolverInterface. Definition at line 717 of file OsiCpxSolverInterface.hpp. |
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Returns true if a basis is available.
Reimplemented from OsiSolverInterface. |
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Returns a basis status of the structural/artificial variables At present as warm start i.e 0: free, 1: basic, 2: upper, 3: lower.
Reimplemented from OsiSolverInterface. |
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Get a row of the tableau (slack part in slack if not NULL).
Reimplemented from OsiSolverInterface. |
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Get a row of the basis inverse.
Reimplemented from OsiSolverInterface. |
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Get a column of the tableau.
Reimplemented from OsiSolverInterface. |
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Get a column of the basis inverse.
Reimplemented from OsiSolverInterface. |
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Get indices of the pivot variable in each row (order of indices corresponds to the order of elements in a vector retured by getBInvACol() and getBInvCol()).
Reimplemented from OsiSolverInterface. |
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Apply a row cut. Return true if cut was applied.
Implements OsiSolverInterface. |
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Apply a column cut (bound adjustment). Return true if cut was applied. Implements OsiSolverInterface. |
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switches CPLEX to prob type LP
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switches CPLEX to prob type MIP
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resizes coltype_ vector to be able to store at least minsize elements
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frees colsize_ vector
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Get LP Pointer for const methods.
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The real work of a copy constructor (used by copy and assignment).
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The real work of the constructor.
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The real work of the destructor.
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free cached column rim vectors
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free cached row rim vectors
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free cached result vectors
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free cached matrices
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free all cached data (except specified entries, see getLpPtr())
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free all allocated memory
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Just for testing purposes.
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A function that tests the methods in the OsiOslSolverInterface class. The only reason for it not to be a member method is that this way it doesn't have to be compiled into the library. And that's a gain, because the library should be compiled with optimization on, but this method should be compiled with debugging. |
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CPLEX environment pointer.
Definition at line 780 of file OsiCpxSolverInterface.hpp. |
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CPLEX version.
Definition at line 782 of file OsiCpxSolverInterface.hpp. |
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CPLEX environment pointer.
Definition at line 783 of file OsiCpxSolverInterface.hpp. |
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CPLEX environment pointer.
Definition at line 784 of file OsiCpxSolverInterface.hpp. |
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Number of live problem instances.
Definition at line 786 of file OsiCpxSolverInterface.hpp. |
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CPLEX model represented by this class instance.
Definition at line 831 of file OsiCpxSolverInterface.hpp. |
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Hotstart information.
Definition at line 834 of file OsiCpxSolverInterface.hpp. |
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CPLEX model represented by this class instance.
Definition at line 835 of file OsiCpxSolverInterface.hpp. |
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CPLEX model represented by this class instance.
Definition at line 836 of file OsiCpxSolverInterface.hpp. |
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CPLEX model represented by this class instance.
Definition at line 837 of file OsiCpxSolverInterface.hpp. |
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CPLEX model represented by this class instance.
Definition at line 838 of file OsiCpxSolverInterface.hpp. |
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Pointer to objective vector.
Definition at line 843 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of variable lower bounds.
Definition at line 846 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of variable lower bounds.
Definition at line 849 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of row sense indicators.
Definition at line 852 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of row right-hand side values.
Definition at line 855 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of slack upper bounds for range constraints (undefined for non-range rows).
Definition at line 858 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of row lower bounds.
Definition at line 861 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of row upper bounds.
Definition at line 864 of file OsiCpxSolverInterface.hpp. |
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Pointer to primal solution vector.
Definition at line 867 of file OsiCpxSolverInterface.hpp. |
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Pointer to dual solution vector.
Definition at line 870 of file OsiCpxSolverInterface.hpp. |
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Pointer to reduced cost vector.
Definition at line 873 of file OsiCpxSolverInterface.hpp. |
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Pointer to row activity (slack) vector.
Definition at line 876 of file OsiCpxSolverInterface.hpp. |
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Pointer to row-wise copy of problem matrix coefficients.
Definition at line 879 of file OsiCpxSolverInterface.hpp. |
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Pointer to row-wise copy of problem matrix coefficients.
Definition at line 882 of file OsiCpxSolverInterface.hpp. |
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Pointer to dense vector of variable types (continous, binary, integer).
Definition at line 888 of file OsiCpxSolverInterface.hpp. |
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Size of allocated memory for coltype_.
Definition at line 891 of file OsiCpxSolverInterface.hpp. |
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Stores whether CPLEX' prob type is currently set to MIP.
Definition at line 894 of file OsiCpxSolverInterface.hpp. |