Cgl trunk
Public Attributes | Friends
CglTwomir Class Reference

Twostep MIR Cut Generator Class. More...

#include <CglTwomir.hpp>

Inheritance diagram for CglTwomir:
Collaboration diagram for CglTwomir:

List of all members.

Public Member Functions

Generate Cuts
virtual void generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo()) const
 Generate Two step MIR cuts either from the tableau rows or from the formulation rows.
virtual bool needsOptimalBasis () const
 Return true if needs optimal basis to do cuts (will return true)
Change criterion on which scalings to use (default = 1,1,1,1)
void setMirScale (int tmin, int tmax)
 Set.
void setTwomirScale (int qmin, int qmax)
void setAMax (int a)
void setMaxElements (int n)
void setMaxElementsRoot (int n)
void setCutTypes (bool mir, bool twomir, bool tab, bool form)
void setFormulationRows (int n)
int getTmin () const
 Get.
int getTmax () const
int getQmin () const
int getQmax () const
int getAmax () const
int getMaxElements () const
int getMaxElementsRoot () const
int getIfMir () const
int getIfTwomir () const
int getIfTableau () const
int getIfFormulation () const
Change criterion on which variables to look at. All ones

more than "away" away from integrality will be investigated (default 0.05)

void setAway (double value)
 Set away.
double getAway () const
 Get away.
void setAwayAtRoot (double value)
 Set away at root.
double getAwayAtRoot () const
 Get away at root.
virtual int maximumLengthOfCutInTree () const
 Return maximum length of cut in tree.
Constructors and destructors
 CglTwomir ()
 Default constructor.
 CglTwomir (const CglTwomir &)
 Copy constructor.
virtual CglCutGeneratorclone () const
 Clone.
CglTwomiroperator= (const CglTwomir &rhs)
 Assignment operator.
virtual ~CglTwomir ()
 Destructor.
virtual std::string generateCpp (FILE *fp)
 Create C++ lines to get to current state.

Public Attributes

std::string probname_
 Problem name.

Friends

void CglTwomirUnitTest (const OsiSolverInterface *siP, const std::string mpdDir)
 A function that tests the methods in the CglTwomir class.

Detailed Description

Twostep MIR Cut Generator Class.

Definition at line 91 of file CglTwomir.hpp.


Constructor & Destructor Documentation

CglTwomir::CglTwomir ( )

Default constructor.

CglTwomir::CglTwomir ( const CglTwomir )

Copy constructor.

virtual CglTwomir::~CglTwomir ( ) [virtual]

Destructor.


Member Function Documentation

virtual void CglTwomir::generateCuts ( const OsiSolverInterface &  si,
OsiCuts &  cs,
const CglTreeInfo  info = CglTreeInfo() 
) const [virtual]

Generate Two step MIR cuts either from the tableau rows or from the formulation rows.

Implements CglCutGenerator.

virtual bool CglTwomir::needsOptimalBasis ( ) const [virtual]

Return true if needs optimal basis to do cuts (will return true)

Reimplemented from CglCutGenerator.

void CglTwomir::setMirScale ( int  tmin,
int  tmax 
) [inline]

Set.

Definition at line 115 of file CglTwomir.hpp.

void CglTwomir::setTwomirScale ( int  qmin,
int  qmax 
) [inline]

Definition at line 116 of file CglTwomir.hpp.

void CglTwomir::setAMax ( int  a) [inline]

Definition at line 117 of file CglTwomir.hpp.

void CglTwomir::setMaxElements ( int  n) [inline]

Definition at line 118 of file CglTwomir.hpp.

void CglTwomir::setMaxElementsRoot ( int  n) [inline]

Definition at line 119 of file CglTwomir.hpp.

void CglTwomir::setCutTypes ( bool  mir,
bool  twomir,
bool  tab,
bool  form 
) [inline]

Definition at line 120 of file CglTwomir.hpp.

void CglTwomir::setFormulationRows ( int  n) [inline]

Definition at line 122 of file CglTwomir.hpp.

int CglTwomir::getTmin ( ) const [inline]

Get.

Definition at line 125 of file CglTwomir.hpp.

int CglTwomir::getTmax ( ) const [inline]

Definition at line 126 of file CglTwomir.hpp.

int CglTwomir::getQmin ( ) const [inline]

Definition at line 127 of file CglTwomir.hpp.

int CglTwomir::getQmax ( ) const [inline]

Definition at line 128 of file CglTwomir.hpp.

int CglTwomir::getAmax ( ) const [inline]

Definition at line 129 of file CglTwomir.hpp.

int CglTwomir::getMaxElements ( ) const [inline]

Definition at line 130 of file CglTwomir.hpp.

int CglTwomir::getMaxElementsRoot ( ) const [inline]

Definition at line 131 of file CglTwomir.hpp.

int CglTwomir::getIfMir ( ) const [inline]

Definition at line 132 of file CglTwomir.hpp.

int CglTwomir::getIfTwomir ( ) const [inline]

Definition at line 133 of file CglTwomir.hpp.

int CglTwomir::getIfTableau ( ) const [inline]

Definition at line 134 of file CglTwomir.hpp.

int CglTwomir::getIfFormulation ( ) const [inline]

Definition at line 135 of file CglTwomir.hpp.

void CglTwomir::setAway ( double  value)

Set away.

double CglTwomir::getAway ( ) const

Get away.

void CglTwomir::setAwayAtRoot ( double  value)

Set away at root.

double CglTwomir::getAwayAtRoot ( ) const

Get away at root.

virtual int CglTwomir::maximumLengthOfCutInTree ( ) const [inline, virtual]

Return maximum length of cut in tree.

Reimplemented from CglCutGenerator.

Definition at line 151 of file CglTwomir.hpp.

virtual CglCutGenerator* CglTwomir::clone ( ) const [virtual]

Clone.

Implements CglCutGenerator.

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

Assignment operator.

virtual std::string CglTwomir::generateCpp ( FILE *  fp) [virtual]

Create C++ lines to get to current state.

Reimplemented from CglCutGenerator.


Friends And Related Function Documentation

void CglTwomirUnitTest ( const OsiSolverInterface *  siP,
const std::string  mpdDir 
) [friend]

A function that tests the methods in the CglTwomir 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.


Member Data Documentation

std::string CglTwomir::probname_ [mutable]

Problem name.

Definition at line 100 of file CglTwomir.hpp.


The documentation for this class was generated from the following file:
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines