ABA_FIXCAND Class Reference

candidates for fixing More...

#include <fixcand.h>

Inheritance diagram for ABA_FIXCAND:

List of all members.

Public Member Functions
	ABA_FIXCAND (ABA_MASTER *master)
	~ABA_FIXCAND ()
	The destructor.
Private Member Functions
void	saveCandidates (ABA_SUB *sub)
void	fixByRedCost (ABA_CUTBUFFER< ABA_VARIABLE, ABA_CONSTRAINT > *addVarBuffer)
void	deleteAll ()
void	allocate (int nCand)
	ABA_FIXCAND (const ABA_FIXCAND &rhs)
const ABA_FIXCAND &	operator= (const ABA_FIXCAND &rhs)
Private Attributes
ABA_MASTER *	master_
ABA_BUFFER< ABA_POOLSLOTREF< ABA_VARIABLE, ABA_CONSTRAINT > * > *	candidates_
ABA_BUFFER< ABA_FSVARSTAT * > *	fsVarStat_
ABA_BUFFER< double > *	lhs_
Friends
class	ABA_SUB
class	ABA_MASTER

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Detailed Description

candidates for fixing

Definition at line 60 of file fixcand.h.

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Constructor & Destructor Documentation

ABA_FIXCAND::ABA_FIXCAND

(

ABA_MASTER *

master

)

The constructor.

Parameters:

master

A pointer to the corresponding master of the optimization.

ABA_FIXCAND::~ABA_FIXCAND

(

)

The destructor.

ABA_FIXCAND::ABA_FIXCAND

(

const ABA_FIXCAND &

rhs

)

[private]

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Member Function Documentation

void ABA_FIXCAND::saveCandidates

(

ABA_SUB *

sub

)

[private]

Memorizes suitable variables for fixing.

Parameters:

sub

A pointer to the root node of the remaining \ tree.

void ABA_FIXCAND::fixByRedCost

(

ABA_CUTBUFFER< ABA_VARIABLE, ABA_CONSTRAINT > *

addVarBuffer

)

[private]

Tries to fix as many candidates as possible.

The new variable status is both stored in the global variable status of the class ABA_MASTER and in the local variable status of ABA_SUB. Candidates which are fixed are removed from the candidate set.

Returns:

1 If contradictions to the variables statuses of sub are detected.

0 otherwise.

Parameters:

addVarBuffer

Inactive variables which are fixed to a nonzero value are added to addVarBuffer to be activated in the next iteration.

We do not used the function ABA_MASTER::primalViolated() for checking of a variable can be fixed, because here we also have to be careful for integer objective function.

void ABA_FIXCAND::deleteAll

(

)

[private]

Deletes all allocated memory of members.

The member pointers are set to 0 that multiple deletion cannot cause any error.

void ABA_FIXCAND::allocate

(

int

nCand

)

[private]

Allocates memory to store nCand candidates for fixing.

const ABA_FIXCAND& ABA_FIXCAND::operator=

(

const ABA_FIXCAND &

rhs

)

[private]

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Friends And Related Function Documentation

friend class ABA_SUB [friend]

Definition at line 61 of file fixcand.h.

friend class ABA_MASTER [friend]

Definition at line 62 of file fixcand.h.

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Member Data Documentation

ABA_MASTER* ABA_FIXCAND::master_ [private]

A pointer to the corresponding master of the optimization.

Definition at line 115 of file fixcand.h.

ABA_BUFFER<ABA_POOLSLOTREF<ABA_VARIABLE, ABA_CONSTRAINT>*>* ABA_FIXCAND::candidates_ [private]

The candidates for fixing.

Definition at line 119 of file fixcand.h.

ABA_BUFFER<ABA_FSVARSTAT*>* ABA_FIXCAND::fsVarStat_ [private]

The fixing status of the candidates.

Definition at line 123 of file fixcand.h.

ABA_BUFFER<double>* ABA_FIXCAND::lhs_ [private]

The left hand side of the expression evaluated for fixing.

Definition at line 127 of file fixcand.h.

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

• Include/abacus/fixcand.h

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