This is a very simple class to guide algorithms. More...

#include <ClpSolve.hpp>

Public Types
enum	SolveType { useDual = 0, usePrimal, usePrimalorSprint, useBarrier, useBarrierNoCross, automatic, tryDantzigWolfe, tryBenders, notImplemented }
	enums for solve function More...

enum	PresolveType { presolveOn = 0, presolveOff, presolveNumber, presolveNumberCost }

Public Member Functions
Constructors and destructor and copy
	ClpSolve ()
	Default constructor. More...

	ClpSolve (SolveType method, PresolveType presolveType, int numberPasses, int options[6], int extraInfo[6], int independentOptions[3])
	Constructor when you really know what you are doing. More...

void	generateCpp (FILE *fp)
	Generates code for above constructor. More...

	ClpSolve (const ClpSolve &)
	Copy constructor. More...

ClpSolve &	operator= (const ClpSolve &rhs)
	Assignment operator. This copies the data. More...

	~ClpSolve ()
	Destructor. More...

Functions most useful to user
void	setSpecialOption (int which, int value, int extraInfo=-1)
	Special options - bits 0 4 - use crash (default allslack in dual, idiot in primal) 8 - all slack basis in primal 2 16 - switch off interrupt handling 3 32 - do not try and make plus minus one matrix 64 - do not use sprint even if problem looks good. More...

int	getSpecialOption (int which) const

void	setSolveType (SolveType method, int extraInfo=-1)
	Solve types. More...

SolveType	getSolveType ()

void	setPresolveType (PresolveType amount, int extraInfo=-1)

PresolveType	getPresolveType ()

int	getPresolvePasses () const

int	getExtraInfo (int which) const
	Extra info for idiot (or sprint) More...

void	setInfeasibleReturn (bool trueFalse)
	Say to return at once if infeasible, default is to solve. More...

bool	infeasibleReturn () const

bool	doDual () const
	Whether we want to do dual part of presolve. More...

void	setDoDual (bool doDual_)

bool	doSingleton () const
	Whether we want to do singleton part of presolve. More...

void	setDoSingleton (bool doSingleton_)

bool	doDoubleton () const
	Whether we want to do doubleton part of presolve. More...

void	setDoDoubleton (bool doDoubleton_)

bool	doTripleton () const
	Whether we want to do tripleton part of presolve. More...

void	setDoTripleton (bool doTripleton_)

bool	doTighten () const
	Whether we want to do tighten part of presolve. More...

void	setDoTighten (bool doTighten_)

bool	doForcing () const
	Whether we want to do forcing part of presolve. More...

void	setDoForcing (bool doForcing_)

bool	doImpliedFree () const
	Whether we want to do impliedfree part of presolve. More...

void	setDoImpliedFree (bool doImpliedfree)

bool	doDupcol () const
	Whether we want to do dupcol part of presolve. More...

void	setDoDupcol (bool doDupcol_)

bool	doDuprow () const
	Whether we want to do duprow part of presolve. More...

void	setDoDuprow (bool doDuprow_)

bool	doSingletonColumn () const
	Whether we want to do singleton column part of presolve. More...

void	setDoSingletonColumn (bool doSingleton_)

bool	doKillSmall () const
	Whether we want to kill small substitutions. More...

void	setDoKillSmall (bool doKill)

int	presolveActions () const
	Set whole group. More...

void	setPresolveActions (int action)

int	substitution () const
	Largest column for substitution (normally 3) More...

void	setSubstitution (int value)

void	setIndependentOption (int type, int value)

int	independentOption (int type) const

Private Attributes
data.
SolveType	method_
	Solve type. More...

PresolveType	presolveType_
	Presolve type. More...

int	numberPasses_
	Amount of presolve. More...

int	options_ [7]
	Options - last is switch for OsiClp. More...

int	extraInfo_ [7]
	Extra information. More...

int	independentOptions_ [3]
	Extra algorithm dependent options 0 - if set return from clpsolve if infeasible 1 - To be copied over to presolve options 2 - max substitution level If Dantzig Wolfe/benders 0 is number blocks, 2 is #passes (notional) More...

Detailed Description

This is a very simple class to guide algorithms.

It is used to tidy up passing parameters to initialSolve and maybe for output from that

Definition at line 20 of file ClpSolve.hpp.

Member Enumeration Documentation

enum ClpSolve::SolveType

enums for solve function

Enumerator
useDual
usePrimal
usePrimalorSprint
useBarrier
useBarrierNoCross
automatic
tryDantzigWolfe
tryBenders
notImplemented

Definition at line 24 of file ClpSolve.hpp.

enum ClpSolve::PresolveType

Enumerator
presolveOn
presolveOff
presolveNumber
presolveNumberCost

Definition at line 35 of file ClpSolve.hpp.

Constructor & Destructor Documentation

ClpSolve::ClpSolve ( )

Default constructor.

ClpSolve::ClpSolve	(	SolveType	method,
		PresolveType	presolveType,
		int	numberPasses,
		int	options[6],
		int	extraInfo[6],
		int	independentOptions[3]
	)

Constructor when you really know what you are doing.

ClpSolve::ClpSolve ( const ClpSolve & )

Copy constructor.

ClpSolve::~ClpSolve ( )

Destructor.

Member Function Documentation

void ClpSolve::generateCpp ( FILE * fp )

Generates code for above constructor.

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

Assignment operator. This copies the data.

void ClpSolve::setSpecialOption	(	int	which,
		int	value,
		int	extraInfo = `-1`
	)

Special options - bits 0 4 - use crash (default allslack in dual, idiot in primal) 8 - all slack basis in primal 2 16 - switch off interrupt handling 3 32 - do not try and make plus minus one matrix 64 - do not use sprint even if problem looks good.

which translation is: which: 0 - startup in Dual (nothing if basis exists).: 0 - no basis 1 - crash 2 - use initiative about idiot! but no crash 1 - startup in Primal (nothing if basis exists): 0 - use initiative 1 - use crash 2 - use idiot and look at further info 3 - use sprint and look at further info 4 - use all slack 5 - use initiative but no idiot 6 - use initiative but no sprint 7 - use initiative but no crash 8 - do allslack or idiot 9 - do allslack or sprint 10 - slp before 11 - no nothing and primal(0) 2 - interrupt handling - 0 yes, 1 no (for threadsafe) 3 - whether to make +- 1matrix - 0 yes, 1 no 4 - for barrier 0 - dense cholesky 1 - Wssmp allowing some long columns 2 - Wssmp not allowing long columns 3 - Wssmp using KKT 4 - Using Florida ordering 8 - bit set to do scaling 16 - set to be aggressive with gamma/delta? 32 - Use KKT 5 - for presolve 1 - switch off dual stuff 6 - extra switches

int ClpSolve::getSpecialOption ( int which ) const

void ClpSolve::setSolveType	(	SolveType	method,
		int	extraInfo = `-1`
	)

Solve types.

SolveType ClpSolve::getSolveType ( )

void ClpSolve::setPresolveType	(	PresolveType	amount,
		int	extraInfo = `-1`
	)

PresolveType ClpSolve::getPresolveType ( )

int ClpSolve::getPresolvePasses ( ) const

int ClpSolve::getExtraInfo ( int which ) const

Extra info for idiot (or sprint)

void ClpSolve::setInfeasibleReturn ( bool trueFalse )

Say to return at once if infeasible, default is to solve.

bool ClpSolve::infeasibleReturn ( ) const

inline

Definition at line 120 of file ClpSolve.hpp.

bool ClpSolve::doDual ( ) const

inline

Whether we want to do dual part of presolve.

Definition at line 125 of file ClpSolve.hpp.

void ClpSolve::setDoDual ( bool doDual_ )

inline

Definition at line 129 of file ClpSolve.hpp.

bool ClpSolve::doSingleton ( ) const

inline

Whether we want to do singleton part of presolve.

Definition at line 137 of file ClpSolve.hpp.

void ClpSolve::setDoSingleton ( bool doSingleton_ )

inline

Definition at line 141 of file ClpSolve.hpp.

bool ClpSolve::doDoubleton ( ) const

inline

Whether we want to do doubleton part of presolve.

Definition at line 149 of file ClpSolve.hpp.

void ClpSolve::setDoDoubleton ( bool doDoubleton_ )

inline

Definition at line 153 of file ClpSolve.hpp.

bool ClpSolve::doTripleton ( ) const

inline

Whether we want to do tripleton part of presolve.

Definition at line 161 of file ClpSolve.hpp.

void ClpSolve::setDoTripleton ( bool doTripleton_ )

inline

Definition at line 165 of file ClpSolve.hpp.

bool ClpSolve::doTighten ( ) const

inline

Whether we want to do tighten part of presolve.

Definition at line 173 of file ClpSolve.hpp.

void ClpSolve::setDoTighten ( bool doTighten_ )

inline

Definition at line 177 of file ClpSolve.hpp.

bool ClpSolve::doForcing ( ) const

inline

Whether we want to do forcing part of presolve.

Definition at line 185 of file ClpSolve.hpp.

void ClpSolve::setDoForcing ( bool doForcing_ )

inline

Definition at line 189 of file ClpSolve.hpp.

bool ClpSolve::doImpliedFree ( ) const

inline

Whether we want to do impliedfree part of presolve.

Definition at line 197 of file ClpSolve.hpp.

void ClpSolve::setDoImpliedFree ( bool doImpliedfree )

inline

Definition at line 201 of file ClpSolve.hpp.

bool ClpSolve::doDupcol ( ) const

inline

Whether we want to do dupcol part of presolve.

Definition at line 209 of file ClpSolve.hpp.

void ClpSolve::setDoDupcol ( bool doDupcol_ )

inline

Definition at line 213 of file ClpSolve.hpp.

bool ClpSolve::doDuprow ( ) const

inline

Whether we want to do duprow part of presolve.

Definition at line 221 of file ClpSolve.hpp.

void ClpSolve::setDoDuprow ( bool doDuprow_ )

inline

Definition at line 225 of file ClpSolve.hpp.

bool ClpSolve::doSingletonColumn ( ) const

inline

Whether we want to do singleton column part of presolve.

Definition at line 233 of file ClpSolve.hpp.

void ClpSolve::setDoSingletonColumn ( bool doSingleton_ )

inline

Definition at line 237 of file ClpSolve.hpp.

bool ClpSolve::doKillSmall ( ) const

inline

Whether we want to kill small substitutions.

Definition at line 245 of file ClpSolve.hpp.

void ClpSolve::setDoKillSmall ( bool doKill )

inline

Definition at line 249 of file ClpSolve.hpp.

int ClpSolve::presolveActions ( ) const

inline

Set whole group.

Definition at line 257 of file ClpSolve.hpp.

void ClpSolve::setPresolveActions ( int action )

inline

Definition at line 261 of file ClpSolve.hpp.

int ClpSolve::substitution ( ) const

inline

Largest column for substitution (normally 3)

Definition at line 266 of file ClpSolve.hpp.

void ClpSolve::setSubstitution ( int value )

inline

Definition at line 270 of file ClpSolve.hpp.

void ClpSolve::setIndependentOption	(	int	type,
		int	value
	)

inline

Definition at line 274 of file ClpSolve.hpp.

int ClpSolve::independentOption ( int type ) const

inline

Definition at line 278 of file ClpSolve.hpp.

Member Data Documentation

SolveType ClpSolve::method_

private

Solve type.

Definition at line 290 of file ClpSolve.hpp.

PresolveType ClpSolve::presolveType_

private

Presolve type.

Definition at line 292 of file ClpSolve.hpp.

int ClpSolve::numberPasses_

private

Amount of presolve.

Definition at line 294 of file ClpSolve.hpp.

int ClpSolve::options_[7]

private

Options - last is switch for OsiClp.

Definition at line 296 of file ClpSolve.hpp.

int ClpSolve::extraInfo_[7]

private

Extra information.

Definition at line 298 of file ClpSolve.hpp.

int ClpSolve::independentOptions_[3]

private

Extra algorithm dependent options 0 - if set return from clpsolve if infeasible 1 - To be copied over to presolve options 2 - max substitution level If Dantzig Wolfe/benders 0 is number blocks, 2 is #passes (notional)

Definition at line 305 of file ClpSolve.hpp.

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

/tmp/Cgl-0.60.3/Clp/src/ClpSolve.hpp

Public Types

Public Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation