SoPlex
Sequential object-oriented simPlex
Sequential object-oriented simPlex
#include <spxpapilo.h>
Public Member Functions | |
Constructors / destructors | |
default constructor. | |
| Presol (Timer::TYPE ttype=Timer::USER_TIME) | |
| Presol (const Presol &old) | |
| copy constructor. More... | |
| Presol & | operator= (const Presol &rhs) |
| assignment operator More... | |
| virtual | ~Presol () |
| destructor. More... | |
| SPxSimplifier< R > * | clone () const |
| virtual SPxSimplifier< R >::Result | simplify (SPxLPBase< R > &lp, Real remainingTime, bool keepbounds, uint32_t seed) |
| virtual void | unsimplify (const VectorBase< R > &, const VectorBase< R > &, const VectorBase< R > &, const VectorBase< R > &, const typename SPxSolverBase< R >::VarStatus[], const typename SPxSolverBase< R >::VarStatus[], bool isOptimal) |
| virtual SPxSimplifier< R >::Result | result () const |
| returns result status of the simplification More... | |
| virtual bool | isUnsimplified () const |
| specifies whether an optimal solution has already been unsimplified. More... | |
| virtual const VectorBase< R > & | unsimplifiedPrimal () |
| returns a reference to the unsimplified primal solution. More... | |
| virtual const VectorBase< R > & | unsimplifiedDual () |
| returns a reference to the unsimplified dual solution. More... | |
| virtual const VectorBase< R > & | unsimplifiedSlacks () |
| returns a reference to the unsimplified slack values. More... | |
| virtual const VectorBase< R > & | unsimplifiedRedCost () |
| returns a reference to the unsimplified reduced costs. More... | |
| virtual SPxSolverBase< R >::VarStatus | getBasisRowStatus (int i) const |
| gets basis status for a single row. More... | |
| virtual SPxSolverBase< R >::VarStatus | getBasisColStatus (int j) const |
| gets basis status for a single column. More... | |
| virtual void | getBasis (typename SPxSolverBase< R >::VarStatus rows[], typename SPxSolverBase< R >::VarStatus cols[], const int rowsSize, const int colsSize) const |
| get optimal basis. More... | |
 Public Member Functions inherited from SPxSimplifier< R > | |
| void | setOutstream (SPxOut &newOutstream) |
| virtual void | setTolerances (std::shared_ptr< Tolerances > newTolerances) |
| set the _tolerances member variable More... | |
| const std::shared_ptr< Tolerances > | tolerances () const |
| get the _tolerances member variable More... | |
| virtual const char * | getName () const |
| get name of simplifier. More... | |
| virtual R | timeUsed () const |
| virtual R | getObjoffset () const |
| get objective offset. More... | |
| virtual void | addObjoffset (const R val) |
| add objective offset. More... | |
| virtual void | setMinReduction (const R minRed) |
| set minimal reduction threshold to continue simplification More... | |
| virtual bool | isConsistent () const |
| consistency check More... | |
| SPxSimplifier (const char *p_name, Timer::TYPE ttype=Timer::USER_TIME) | |
| constructor More... | |
| SPxSimplifier (const SPxSimplifier &old) | |
| copy constructor More... | |
| SPxSimplifier & | operator= (const SPxSimplifier &rhs) |
| assignment operator More... | |
| virtual | ~SPxSimplifier () |
| destructor. More... | |
Additional Inherited Members | |
| Public Types inherited from SPxSimplifier< R > | |
| enum | Result { OKAY = 0 , INFEASIBLE = 1 , DUAL_INFEASIBLE = 2 , UNBOUNDED = 3 , VANISHED = 4 } |
| Result of the simplification. More... | |
| Protected Attributes inherited from SPxSimplifier< R > | |
| const char * | m_name |
| name of the simplifier More... | |
| Timer * | m_timeUsed |
| user time used for simplification More... | |
| Timer::TYPE | m_timerType |
| int | m_remRows |
| number of removed rows More... | |
| int | m_remCols |
| number of removed columns More... | |
| int | m_remNzos |
| number of removed nonzero coefficients More... | |
| int | m_chgBnds |
| number of changed bounds More... | |
| int | m_chgLRhs |
| number of change right-hand sides More... | |
| int | m_keptBnds |
| number of kept bounds More... | |
| int | m_keptLRhs |
| number of kept left- and right-hand sides More... | |
| R | m_objoffset |
| objective offset More... | |
| R | m_minReduction |
| minimal reduction (sum of removed rows/cols) to continue simplification More... | |
| SPxOut * | spxout |
| message handler More... | |
| std::shared_ptr< Tolerances > | _tolerances |
Definition at line 31 of file spxpapilo.h.
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explicit |
Definition at line 40 of file spxpapilo.h.
Referenced by Presol< R >::clone().
copy constructor.
Definition at line 44 of file spxpapilo.h.
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virtual |
destructor.
Definition at line 53 of file spxpapilo.h.
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virtual |
Implements SPxSimplifier< R >.
Definition at line 58 of file spxpapilo.h.
References Presol< R >::Presol().
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virtual |
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gets basis status for a single column.
Implements SPxSimplifier< R >.
Definition at line 133 of file spxpapilo.h.
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gets basis status for a single row.
Implements SPxSimplifier< R >.
Definition at line 126 of file spxpapilo.h.
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specifies whether an optimal solution has already been unsimplified.
Reimplemented from SPxSimplifier< R >.
Definition at line 87 of file spxpapilo.h.
assignment operator
Definition at line 47 of file spxpapilo.h.
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virtual |
returns result status of the simplification
Implements SPxSimplifier< R >.
Definition at line 80 of file spxpapilo.h.
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Implements SPxSimplifier< R >.
Definition at line 63 of file spxpapilo.h.
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returns a reference to the unsimplified dual solution.
Implements SPxSimplifier< R >.
Definition at line 102 of file spxpapilo.h.
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returns a reference to the unsimplified primal solution.
Implements SPxSimplifier< R >.
Definition at line 94 of file spxpapilo.h.
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returns a reference to the unsimplified reduced costs.
Implements SPxSimplifier< R >.
Definition at line 118 of file spxpapilo.h.
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returns a reference to the unsimplified slack values.
Implements SPxSimplifier< R >.
Definition at line 110 of file spxpapilo.h.
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Implements SPxSimplifier< R >.
Definition at line 70 of file spxpapilo.h.