BlisModel Class Reference

#include <BlisModel.h>

Inheritance diagram for BlisModel:

[legend]

Collaboration diagram for BlisModel:

[legend]

List of all members.

Public Member Functions
	BlisModel ()
	Default construtor.
virtual	~BlisModel ()
	Destructor.
void	gutsOfDestructor ()
	Actual destructor.
void	init ()
	Intialize member data.
virtual void	readInstance (const char *dataFile)
	Read in the instance data.
virtual void	readParameters (const int argnum, const char *const *arglist)
	Read in Alps, Blis parameters.
virtual void	writeParameters (std::ostream &outstream) const
	Write out parameters.
virtual AlpsTreeNode *	createRoot ()
	Create the root node based on model.
virtual bool	setupSelf ()
	Do necessary work to make model usable.
virtual void	setSolver (OsiSolverInterface *si)
	Set lp solver.
virtual OsiSolverInterface *	solver ()
	Get lp solver.
bool	resolve ()
	Resolving a lp.
void	setActiveNode (AlpsTreeNode *node)
	Set active node.
void	setSolEstimate (double est)
	Set the solution estimate of the active node.
int	getNumStrong ()
	Get number of strong branchings.
void	addNumStrong (int num=1)
	Add num to number of strong branchings.
double *	getObjCoef () const
	Get objective coefficients.
const double *	getColLower ()
	Get column lower bound.
const double *	getColUpper ()
	Get column upper bound.
int	getNumCols ()
	Get number of columns.
int	getNumRows ()
	Get number of rows.
double *	origVarLB ()
	Get original variable bounds arrary.
double *	origVarUB ()
double *	origConLB ()
	Get original constraint bounds arrary.
double *	origConUB ()
double *	startVarLB ()
	The starting variable bounds arrary of a subproblem (internal use).
double *	startVarUB ()
double *	startConLB ()
	The starting constraint bounds arrary of a subproblem (internal use).
double *	startConUB ()
int *	tempVarLBPos ()
	Temparory storage.
int *	tempVarUBPos ()
int *	tempConLBPos ()
int *	tempConUBPos ()
double	getLpObjValue () const
	Get current objective function value.
const double *	getLpSolution () const
	Get active lp solution.
int	getNumSolutions () const
	Return the stored lp solution.
int	getNumHeurSolutions () const
	Get number of heuristic solutions.
double *	incumbent ()
	Return best ip solution found so far.
bool	setBestSolution (BLIS_SOL_TYPE how, double &objectiveValue, const double *solution, bool fixVariables=false)
	Record a new incumbent solution and update objectiveValue.
double	getCutoff () const
	Get cut off value.
void	setCutoff (double co)
	Set cut off value.
bool	feasibleSolution (int &numIntegerInfs)
	Test the current lp solution for feasiblility.
bool	feasibleSolution (int &numIntegerInfs, int &numObjectInfs)
	Test the current solution for feasiblility.
void	findIntegers (bool startAgain)
	Identify integer variable.
int	getNumIntVars () const
	Get number of integers.
int *	getIntVars () const
	Get integer indices.
bool	checkInteger (double value) const
	Check if a value is integer.
void	addHeuristic (BlisHeuristic *heur)
	Add a heuristic.
BlisHeuristic *	heuristics (int i) const
	Get a specific heuristic.
int	numHeuristics () const
	Get the number of heuristics.
void	addCutGenerator (CglCutGenerator *generator, const char *name=NULL, int strategy=0, bool normal=true, bool atSolution=false, bool whenInfeasible=false)
	Add a cut generator.
BlisConGenerator *	cutGenerators (int i) const
	Get a specific cut generator.
int	numCutGenerators () const
	Get the number of cut generators.
int	getMaxNumCons () const
	Get the max number of cuts can be generated.
void	setMaxNumCons (int m)
	Set the max number of cuts can be generated.
BcpsConstraintPool *	constraintPool ()
	Access constraint pool.
int	useCons () const
	Query constraint generation strategy.
void	setUseCons (int u)
	Set constraint generation strategy.
int	getDenseConCutoff () const
	Get the thresheld to be considered as a dense constraint.
void	setDenseConCutoff (int cutoff)
	Set the thresheld to be considered as a dense constraint.
double *	getConRandoms () const
	Get randoms for check parallel constraints.
void	passInPriorities (const int *priorities, bool ifNotSimpleIntegers, int defaultValue=1000)
	Pass in branching priorities.
const int *	priority () const
	Priorities.
int	priority (int sequence) const
	Returns priority level for an object (or 1000 if no priorities exist).
const double	getNodeWeight () const
void	setNodeWeight (double nw)
virtual void	modelLog ()
	Log of specific models.
int	getNumNodes () const
	Get how many Nodes it took to solve the problem.
int	getNumIterations () const
	Get how many iterations it took to solve the problem.
int	getAveIterations () const
	Get the average iterations it took to solve a lp.
void	addNumNodes (int newNodes=1)
	Increment node count.
void	addNumIterations (int newIter)
	Increment Iteration count.
CoinMessageHandler *	messageHandler () const
	Get the message handler.
int	getHotstartStrategy ()
	Don't know what it is.
void	setHotstartStrategy (int value)
virtual void	registerKnowledge ()
	Register knowledge.
virtual AlpsEncoded *	encode () const
	The method that encodes the model into a encoded object.
virtual void	decodeToSelf (AlpsEncoded &)
	The method that decodes the model from a encoded object.
	BlisModel ()
	Default construtor.
virtual	~BlisModel ()
	Destructor.
void	gutsOfDestructor ()
	Actual destructor.
void	setColMatrix (CoinPackedMatrix *mat)
	Pass a matrix in.
void	setNumCons (int num)
	Pass column upper bounds.
void	setNumVars (int num)
	Pass column upper bounds.
void	setNumElems (int num)
	Pass column upper bounds.
void	setConLb (double *cl)
	Pass column upper bounds.
void	setConUb (double *cu)
	Pass column lower bounds.
void	setVarLb (double *lb)
	Pass variable upper bounds.
void	setVarUb (double *ub)
	Pass variable lower bounds.
void	setColType (char *colType)
	Pass variable types.
void	setObjCoef (double *obj)
	Pass objective coefficients.
virtual void	readInstance (const char *dataFile)
	For parallel code, only the master calls this function.
virtual void	importModel (std::vector< BlisVariable * > vars, std::vector< BlisConstraint * > cons)
	For parallel code, only the master calls this function.
virtual void	readParameters (const int argnum, const char *const *arglist)
	Read in Alps, Blis parameters.
virtual void	writeParameters (std::ostream &outstream) const
	Write out parameters.
virtual AlpsTreeNode *	createRoot ()
	For parallel code, only the master calls this function.
virtual bool	setupSelf ()
	All processes call this function.
virtual void	preprocess ()
	Preprocessing the model.
virtual void	postprocess ()
	Postprocessing the searching results.
virtual void	setSolver (OsiSolverInterface *si)
	Set lp solver.
virtual OsiSolverInterface *	getSolver ()
	Get lp solver.
virtual OsiSolverInterface *	solver ()
	Get lp solver.
bool	resolve ()
	Resolving a lp.
void	setActiveNode (AlpsTreeNode *node)
	Set active node.
void	setSolEstimate (double est)
	Set the solution estimate of the active node.
int	getNumStrong ()
	Get number of strong branchings.
void	addNumStrong (int num=1)
	Add num to number of strong branchings.
int	getNumBranchResolve ()
	Get the maximum number of resolve during branching.
void	setNumBranchResolve (int num)
	Set the maximum number of resolve during branching.
double *	getObjCoef () const
	Get objective coefficients.
const double *	getColLower ()
	Get column lower bound.
const double *	getColUpper ()
	Get column upper bound.
int	getNumCols ()
	Get number of columns.
int	getNumRows ()
	Get number of rows.
double *	varLB ()
	Get variable bounds arrary.
double *	varUB ()
double *	conLB ()
	Get original constraint bounds arrary.
double *	conUB ()
double *	startVarLB ()
	The starting variable bounds arrary of a subproblem (internal use).
double *	startVarUB ()
double *	startConLB ()
	The starting constraint bounds arrary of a subproblem (internal use).
double *	startConUB ()
int *	tempVarLBPos ()
	Temparory storage.
int *	tempVarUBPos ()
int *	tempConLBPos ()
int *	tempConUBPos ()
double	getLpObjValue () const
	Get current objective function value.
const double *	getLpSolution () const
	Get active lp solution.
int	getNumSolutions () const
	Get number of solutions.
int	getNumHeurSolutions () const
	Get number of heuristic solutions.
double *	incumbent ()
	Return best ip solution found so far.
int	storeSolution (BlisSolutionType how, BlisSolution *sol)
	Record a new incumbent solution and update objectiveValue.
double	getCutoff () const
	Get cut off value.
void	setCutoff (double co)
	Set cut off value.
BlisSolution *	feasibleSolutionHeur (const double *solution)
	Test if a solution found by heuristic is feasible.
virtual BlisSolution *	feasibleSolution (int &numIntegerInfs, int &numObjectInfs)
	Test the current LP solution for feasiblility.
virtual BlisSolution *	userFeasibleSolution (const double *solution, bool &feasible)
	User's criteria for a feasible solution.
void	createIntgerObjects (bool startAgain)
	Identify integer variable.
int *	getIntObjIndices () const
	Get integers' object indices.
int	getNumIntObjects () const
	Get number of integers.
int *	getIntColIndices () const
	Get integers' column indices.
bool	checkInteger (double value) const
	Check if a value is integer.
void	analyzeObjective ()
void	addHeuristic (BlisHeuristic *heur)
	Add a heuristic.
BlisHeuristic *	heuristics (int i) const
	Get a specific heuristic.
int	numHeuristics () const
	Get the number of heuristics.
void	addCutGenerator (BlisConGenerator *generator)
	Add a Blis cut generator.
void	addCutGenerator (CglCutGenerator *generator, const char *name=NULL, BlisCutStrategy strategy=BlisCutStrategyAuto, int cutGenerationFrequency=1, bool normal=true, bool atSolution=false, bool whenInfeasible=false)
	Add a Cgl cut generator.
BlisConGenerator *	cutGenerators (int i) const
	Get a specific cut generator.
int	numCutGenerators () const
	Get the number of cut generators.
int	getMaxNumCons () const
	Get the max number of cuts can be generated.
void	setMaxNumCons (int m)
	Set the max number of cuts can be generated.
BcpsConstraintPool *	constraintPool ()
	Access constraint pool.
BcpsConstraintPool *	constraintPoolReceive ()
	Access receive constraint pool.
BcpsConstraintPool *	constraintPoolSend ()
	Access send constraint pool.
BlisCutStrategy	getCutStrategy () const
	Query constraint generation strategy.
void	setCutStrategy (BlisCutStrategy u)
	Set constraint generation strategy.
int	getCutGenerationFrequency () const
	Query constraint generation frequency.
void	setCutStrategy (int f)
	Set constraint generation frequency.
int	getDenseConCutoff () const
	Get the thresheld to be considered as a dense constraint.
void	setDenseConCutoff (int cutoff)
	Set the thresheld to be considered as a dense constraint.
double *	getConRandoms () const
	Get randoms for check parallel constraints.
void	passInPriorities (const int *priorities, bool ifNotSimpleIntegers, int defaultValue=1000)
	Pass in branching priorities.
const int *	priority () const
	Priorities.
int	priority (int sequence) const
	Returns priority level for an object (or 1000 if no priorities exist).
double	getNodeWeight () const
void	setNodeWeight (double nw)
virtual void	modelLog ()
	Log of specific models.
int	getNumNodes () const
	Get how many Nodes it took to solve the problem.
int	getNumIterations () const
	Get how many iterations it took to solve the problem.
int	getAveIterations () const
	Get the average iterations it took to solve a lp.
void	addNumNodes (int newNodes=1)
	Increment node count.
void	addNumIterations (int newIter)
	Increment Iteration count.
CoinMessageHandler *	blisMessageHandler () const
	Get the message handler.
CoinMessages	blisMessages ()
	Return messages.
virtual void	nodeLog (AlpsTreeNode *node, bool force)
	Node log.
virtual void	registerKnowledge ()
	Register knowledge.
virtual AlpsEncoded *	encode () const
	The method that encodes the model into an encoded object.
virtual void	decodeToSelf (AlpsEncoded &)
	The method that decodes the model from an encoded object.
virtual AlpsEncoded *	packSharedKnowlege ()
	Pack knowledge to be shared with others into an encoded object.
virtual void	unpackSharedKnowledge (AlpsEncoded &)
	Unpack and store shared knowledge from an encoded object.
Branching Strategys
See the BcpsBranchStrategy class for additional information.
BcpsBranchStrategy *	branchStrategy () const
	Get the current branching strategy.
void	setBranchingMethod (BcpsBranchStrategy *method)
	Set the branching strategy.
void	setBranchingMethod (BcpsBranchStrategy &method)
	Set the branching stratedy.
BcpsBranchStrategy *	branchStrategy () const
	Get the current branching strategy.
void	setBranchingMethod (BcpsBranchStrategy *method)
	Set the branching strategy.
void	setBranchingMethod (BcpsBranchStrategy &method)
	Set the branching stratedy.
BcpsBranchStrategy *	rampUpBranchStrategy () const
	Get the current branching strategy.
Object manipulation routines
int	numObjects () const
	Get the number of objects.
void	setNumObjects (int num)
	Set the number of objects.
BcpsObject **	objects ()
	Get the array of objects.
BcpsObject *	objects (int which)
	Get the specified object.
void	deleteObjects ()
	Delete all object information.
void	addObjects (int numObjects, BcpsObject **objects)
	Add in object information.
int	numObjects () const
	Get the number of objects.
void	setNumObjects (int num)
	Set the number of objects.
BcpsObject **	objects ()
	Get the array of objects.
BcpsObject *	objects (int which)
	Get the specified object.
void	setSharedObjectMark (int i)
	Mark object to be shared.
void	clearSharedObjectMark ()
	Clear all the share mark.
void	deleteObjects ()
	Delete all object information.
void	addObjects (int numObjects, BcpsObject **objects)
	Add in object information.
Public Attributes
bool	isRoot_
	If root node.
double	startTime_
	Search starting time.
double	timeLimit_
	Max solution time.
double	integerTol_
	Integer tolerance.
double	optimalRelGap_
	Relative optimal gap.
double	optimalAbsGap_
	Absolute optimal gap.
bool	useHeuristics_
	If use heuristics.
OsiCuts	newCutPool_
	Store new cuts in each pass.
std::vector< AlpsTreeNode * >	leafToRootPath
	Record the path from leaf to root.
int	boundingPass_
	The number of passes during bounding procedure.
BlisHeurStrategy	heurStrategy_
	If use heuristics.
int	heurCallFrequency_
	Frequency of using heuristics.
Protected Member Functions
void	init ()
	Intialize member data.
void	createObjects ()
	Create variables and constraints.
AlpsReturnStatus	encodeBlis (AlpsEncoded *encoded) const
	Pack Blis portion of the model into an encoded object.
AlpsReturnStatus	decodeBlis (AlpsEncoded &encoded)
	Unpack Blis portion of the model from an encoded object.
void	packSharedPseudocost (AlpsEncoded *encoded, int numToShare)
	Retrieve and pack shared pseudocost.
void	unpackSharedPseudocost (AlpsEncoded &encoded)
	Unpack and store shared pseduocost.
void	packSharedConstraints (AlpsEncoded *encoded)
	Retrieve and pack shared constraints.
void	unpackSharedConstraints (AlpsEncoded &encoded)
	Unpack and store shared constraints.
void	packSharedVariables (AlpsEncoded *encoded)
	Retrieve and pack shared variables.
void	unpackSharedVariables (AlpsEncoded &encoded)
	Unpack and store shared variables.
Protected Attributes
OsiSolverInterface *	origLpSolver_
	Input by user.
OsiSolverInterface *	presolvedLpSolver_
	Presolved.
BlisPresolve *	presolve_
int *	intObjIndices_
BcpsBranchStrategy *	rampUpBranchStrategy_
BlisHotStartStrategy	hotstartStrategy_
char *	sharedObjectMark_
	The objects that can be shared.
int	numBranchResolve_
	Maximum number of resolve during branching.
BlisCutStrategy	cutStrategy_
	If use cut generators.
int	cutGenerationFrequency_
	Frequency of cut generation.
CoinMessageHandler *	blisMessageHandler_
	Message handler.
CoinMessages	blisMessages_
	Blis messages.
BcpsConstraintPool *	constraintPoolSend_
	Constraints that can be sent/broadcasted to other processes.
BcpsConstraintPool *	constraintPoolReceive_
	Constraints that are received from other processses.
Private Attributes
OsiSolverInterface *	lpSolver_
	Lp solver.
CoinPackedMatrix *	colMatrix_
	Orignial column majored matrix.
int	numSolutions_
int	numHeurSolutions_
double	incObjValue_
	Saved lp solution for temporatory usage.
double *	incumbent_
	Incumbent.
double	cutoff_
	Cutoff in lp solver.
double	cutoffInc_
	Cutoff increment.
BcpsBranchStrategy *	branchStrategy_
	Variable selection function.
int	hotstartStrategy_
int	numObjects_
	Number of objects.
BcpsObject **	objects_
	The set of objects.
int *	priority_
	Priorities of integer object.
AlpsTreeNode *	activeNode_
	Active node.
int	numStrong_
	Number of strong branching.
double	nodeWeight_
int	numHeuristics_
	Number of heuristics.
BlisHeuristic **	heuristics_
	The list of heuristics.
int	useCons_
	If use cut generators.
int	numCutGenerators_
	Number of cut generators used.
int	maxNumCons_
	Number of cuts can be generators.
BlisConGenerator **	generators_
	The list of cut generators used.
BcpsConstraintPool *	constraintPool_
	Store all the cuts.
BlisConstraint **	oldConstraints_
	Temporary store old cuts at a node when installing a node.
int	oldConstraintsSize_
	The memory size allocated for oldConstraints_.
int	numOldConstraints_
	Number of old constraints.
double *	conRandoms_
	Random keys.
int	denseConCutoff_
	Dense constraint cutoff.
BlisParams *	BlisPar_
	Blis parameters.
CoinMessageHandler *	handler_
	Message handler.
int	numNodes_
	Number of processed nodes.
int	numIterations_
	Number of lp(Simplex) iterations.
int	aveIterations_
	Average number of lp iterations to solve a subproblem.
double *	origVarLB_
	Original variable and constraint bounds.
double *	origVarUB_
	Original variable and constraint bounds.
double *	origConLB_
	Original variable and constraint bounds.
double *	origConUB_
	Original variable and constraint bounds.
int	numCols_
	Number of columns/rows/elements in active subproblem.
int	numRows_
	Original variable and constraint bounds.
int	numElems_
	Original variable and constraint bounds.
double	objSense_
	Objective function.
double *	objCoef_
	Original variable and constraint bounds.
int	numIntVars_
	Column types.
int *	intVars_
	Original variable and constraint bounds.
char *	colType_
	Original variable and constraint bounds.
double *	startVarLB_
	Starting var/con bounds for processing each node.
double *	startVarUB_
	Original variable and constraint bounds.
double *	startConLB_
	Original variable and constraint bounds.
double *	startConUB_
	Original variable and constraint bounds.
int *	tempVarLBPos_
	Tempory storage for var/con indices.
int *	tempVarUBPos_
	Original variable and constraint bounds.
int *	tempConLBPos_
	Original variable and constraint bounds.
int *	tempConUBPos_
	Original variable and constraint bounds.
double *	varLB_
	Variable and constraint bounds.
double *	varUB_
	Original variable and constraint bounds.
double *	conLB_
	Original variable and constraint bounds.
double *	conUB_
	Original variable and constraint bounds.
int	numIntObjects_
	Column types.
int *	intColIndices_
	Original variable and constraint bounds.
std::vector< BcpsVariable * >	inputVar_
	User's input objects.
std::vector< BcpsConstraint * >	inputCon_
	Original variable and constraint bounds.
int	getNumOldConstraints () const
	Get number of old constraints.
void	setNumOldConstraints (int num)
	Set number of old constraints.
int	getOldConstraintsSize () const
	Get max number of old constraints.
void	setOldConstraintsSize (int num)
	Set max number of old constraints.
BlisConstraint **	oldConstraints ()
	Access old constraints.
void	setOldConstraints (BlisConstraint **old)
	set old constraints.
void	delOldConstraints ()
	Set max number of old constraints.
BlisParams *	BlisPar ()
	Access parameters.
int	getNumOldConstraints () const
	Get number of old constraints.
void	setNumOldConstraints (int num)
	Set number of old constraints.
int	getOldConstraintsSize () const
	Get max number of old constraints.
void	setOldConstraintsSize (int num)
	Set max number of old constraints.
BlisConstraint **	oldConstraints ()
	Access old constraints.
void	setOldConstraints (BlisConstraint **old)
	set old constraints.
void	delOldConstraints ()
	Set max number of old constraints.
BlisParams *	BlisPar ()
	Access parameters.

---

Detailed Description

Definition at line 61 of file BlisModel.h.

---

Constructor & Destructor Documentation

BlisModel::BlisModel

(

)

[inline]

Default construtor.

Definition at line 277 of file BlisModel.h.

virtual BlisModel::~BlisModel

(

)

[virtual]

Destructor.

BlisModel::BlisModel

(

)

[inline]

Default construtor.

Definition at line 327 of file BlisModel.h.

virtual BlisModel::~BlisModel

(

)

[virtual]

Destructor.

---

Member Function Documentation

void BlisModel::gutsOfDestructor

(

)

Actual destructor.

void BlisModel::init

(

)

Intialize member data.

virtual void BlisModel::readInstance

(

const char *

dataFile

)

[virtual]

Read in the instance data.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual void BlisModel::readParameters	(	const int	argnum,
		const char *const *	arglist
	)			[virtual]

Read in Alps, Blis parameters.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual void BlisModel::writeParameters

(

std::ostream &

outstream

)

const [virtual]

Write out parameters.

Reimplemented from AlpsModel.

virtual AlpsTreeNode* BlisModel::createRoot

(

)

[virtual]

Create the root node based on model.

Reimplemented from AlpsModel.

virtual bool BlisModel::setupSelf

(

)

[virtual]

Do necessary work to make model usable.

Return success or not.

Reimplemented from AlpsModel.

virtual void BlisModel::setSolver

(

OsiSolverInterface *

si

)

[inline, virtual]

Set lp solver.

Definition at line 308 of file BlisModel.h.

virtual OsiSolverInterface* BlisModel::solver

(

)

[inline, virtual]

Get lp solver.

Definition at line 311 of file BlisModel.h.

bool BlisModel::resolve

(

)

Resolving a lp.

void BlisModel::setActiveNode

(

AlpsTreeNode *

node

)

[inline]

Set active node.

Definition at line 317 of file BlisModel.h.

void BlisModel::setSolEstimate

(

double

est

)

[inline]

Set the solution estimate of the active node.

Definition at line 320 of file BlisModel.h.

int BlisModel::getNumStrong

(

)

[inline]

Get number of strong branchings.

Definition at line 323 of file BlisModel.h.

void BlisModel::addNumStrong

(

int

num = 1

)

[inline]

Add num to number of strong branchings.

Definition at line 326 of file BlisModel.h.

double* BlisModel::getObjCoef

(

)

const [inline]

Get objective coefficients.

Definition at line 333 of file BlisModel.h.

const double* BlisModel::getColLower

(

)

[inline]

Get column lower bound.

Definition at line 336 of file BlisModel.h.

const double* BlisModel::getColUpper

(

)

[inline]

Get column upper bound.

Definition at line 339 of file BlisModel.h.

int BlisModel::getNumCols

(

)

[inline]

Get number of columns.

Definition at line 342 of file BlisModel.h.

int BlisModel::getNumRows

(

)

[inline]

Get number of rows.

Definition at line 345 of file BlisModel.h.

double* BlisModel::origVarLB

(

)

[inline]

Get original variable bounds arrary.

Definition at line 348 of file BlisModel.h.

double* BlisModel::origVarUB

(

)

[inline]

Definition at line 349 of file BlisModel.h.

double* BlisModel::origConLB

(

)

[inline]

Get original constraint bounds arrary.

Definition at line 352 of file BlisModel.h.

double* BlisModel::origConUB

(

)

[inline]

Definition at line 353 of file BlisModel.h.

double* BlisModel::startVarLB

(

)

[inline]

The starting variable bounds arrary of a subproblem (internal use).

Definition at line 356 of file BlisModel.h.

double* BlisModel::startVarUB

(

)

[inline]

Definition at line 357 of file BlisModel.h.

double* BlisModel::startConLB

(

)

[inline]

The starting constraint bounds arrary of a subproblem (internal use).

Definition at line 360 of file BlisModel.h.

double* BlisModel::startConUB

(

)

[inline]

Definition at line 361 of file BlisModel.h.

int* BlisModel::tempVarLBPos

(

)

[inline]

Temparory storage.

Definition at line 364 of file BlisModel.h.

int* BlisModel::tempVarUBPos

(

)

[inline]

Definition at line 365 of file BlisModel.h.

int* BlisModel::tempConLBPos

(

)

[inline]

Definition at line 366 of file BlisModel.h.

int* BlisModel::tempConUBPos

(

)

[inline]

Definition at line 367 of file BlisModel.h.

double BlisModel::getLpObjValue

(

)

const [inline]

Get current objective function value.

Definition at line 374 of file BlisModel.h.

const double* BlisModel::getLpSolution

(

)

const [inline]

Get active lp solution.

Definition at line 377 of file BlisModel.h.

int BlisModel::getNumSolutions

(

)

const [inline]

Return the stored lp solution.

Get number of solutions.

Definition at line 387 of file BlisModel.h.

int BlisModel::getNumHeurSolutions

(

)

const [inline]

Get number of heuristic solutions.

Definition at line 390 of file BlisModel.h.

double* BlisModel::incumbent

(

)

[inline]

Return best ip solution found so far.

Definition at line 393 of file BlisModel.h.

bool BlisModel::setBestSolution	(	BLIS_SOL_TYPE	how,
		double &	objectiveValue,
		const double *	solution,
		bool	fixVariables = false
	)

Record a new incumbent solution and update objectiveValue.

double BlisModel::getCutoff

(

)

const [inline]

Get cut off value.

Definition at line 402 of file BlisModel.h.

void BlisModel::setCutoff

(

double

co

)

[inline]

Set cut off value.

Definition at line 405 of file BlisModel.h.

bool BlisModel::feasibleSolution

(

int &

numIntegerInfs

)

Test the current lp solution for feasiblility.

Scan integer objects for indications of infeasibility.

bool BlisModel::feasibleSolution	(	int &	numIntegerInfs,
		int &	numObjectInfs
	)

Test the current solution for feasiblility.

Scan all objects for indications of infeasibility. This is broken down into simple integer infeasibility (numIntegerInfs) and all other reports of infeasibility(numObjectInfs).

BcpsBranchStrategy* BlisModel::branchStrategy

(

)

const [inline]

Get the current branching strategy.

Definition at line 432 of file BlisModel.h.

void BlisModel::setBranchingMethod

(

BcpsBranchStrategy *

method

)

[inline]

Set the branching strategy.

Definition at line 436 of file BlisModel.h.

void BlisModel::setBranchingMethod

(

BcpsBranchStrategy &

method

)

[inline]

Set the branching stratedy.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 442 of file BlisModel.h.

int BlisModel::numObjects

(

)

const [inline]

Get the number of objects.

Definition at line 452 of file BlisModel.h.

void BlisModel::setNumObjects

(

int

num

)

[inline]

Set the number of objects.

Definition at line 455 of file BlisModel.h.

BcpsObject** BlisModel::objects

(

)

[inline]

Get the array of objects.

Definition at line 458 of file BlisModel.h.

BcpsObject* BlisModel::objects

(

int

which

)

[inline]

Get the specified object.

Definition at line 461 of file BlisModel.h.

void BlisModel::deleteObjects

(

)

Delete all object information.

void BlisModel::addObjects	(	int	numObjects,
		BcpsObject **	objects
	)

Add in object information.

Objects are cloned; the owner can delete the originals.

void BlisModel::findIntegers

(

bool

startAgain

)

Identify integer variable.

int BlisModel::getNumIntVars

(

)

const [inline]

Get number of integers.

Definition at line 475 of file BlisModel.h.

int* BlisModel::getIntVars

(

)

const [inline]

Get integer indices.

Definition at line 478 of file BlisModel.h.

bool BlisModel::checkInteger

(

double

value

)

const [inline]

Check if a value is integer.

Definition at line 481 of file BlisModel.h.

void BlisModel::addHeuristic

(

BlisHeuristic *

heur

)

Add a heuristic.

BlisHeuristic* BlisModel::heuristics

(

int

i

)

const [inline]

Get a specific heuristic.

Definition at line 500 of file BlisModel.h.

int BlisModel::numHeuristics

(

)

const [inline]

Get the number of heuristics.

Definition at line 503 of file BlisModel.h.

void BlisModel::addCutGenerator	(	CglCutGenerator *	generator,
		const char *	name = NULL,
		int	strategy = 0,
		bool	normal = true,
		bool	atSolution = false,
		bool	whenInfeasible = false
	)

Add a cut generator.

BlisConGenerator* BlisModel::cutGenerators

(

int

i

)

const [inline]

Get a specific cut generator.

Definition at line 518 of file BlisModel.h.

int BlisModel::numCutGenerators

(

)

const [inline]

Get the number of cut generators.

Definition at line 521 of file BlisModel.h.

int BlisModel::getMaxNumCons

(

)

const [inline]

Get the max number of cuts can be generated.

Definition at line 524 of file BlisModel.h.

void BlisModel::setMaxNumCons

(

int

m

)

[inline]

Set the max number of cuts can be generated.

Definition at line 527 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPool

(

)

[inline]

Access constraint pool.

Definition at line 530 of file BlisModel.h.

int BlisModel::getNumOldConstraints

(

)

const [inline]

Get number of old constraints.

Definition at line 534 of file BlisModel.h.

void BlisModel::setNumOldConstraints

(

int

num

)

[inline]

Set number of old constraints.

Definition at line 537 of file BlisModel.h.

int BlisModel::getOldConstraintsSize

(

)

const [inline]

Get max number of old constraints.

Definition at line 540 of file BlisModel.h.

void BlisModel::setOldConstraintsSize

(

int

num

)

[inline]

Set max number of old constraints.

Definition at line 543 of file BlisModel.h.

BlisConstraint** BlisModel::oldConstraints

(

)

[inline]

Access old constraints.

Definition at line 546 of file BlisModel.h.

void BlisModel::setOldConstraints

(

BlisConstraint **

old

)

[inline]

set old constraints.

Definition at line 549 of file BlisModel.h.

void BlisModel::delOldConstraints

(

)

[inline]

Set max number of old constraints.

Definition at line 552 of file BlisModel.h.

int BlisModel::useCons

(

)

const [inline]

Query constraint generation strategy.

Definition at line 559 of file BlisModel.h.

void BlisModel::setUseCons

(

int

u

)

[inline]

Set constraint generation strategy.

Definition at line 562 of file BlisModel.h.

int BlisModel::getDenseConCutoff

(

)

const [inline]

Get the thresheld to be considered as a dense constraint.

Definition at line 565 of file BlisModel.h.

void BlisModel::setDenseConCutoff

(

int

cutoff

)

[inline]

Set the thresheld to be considered as a dense constraint.

Definition at line 568 of file BlisModel.h.

double* BlisModel::getConRandoms

(

)

const [inline]

Get randoms for check parallel constraints.

Definition at line 571 of file BlisModel.h.

void BlisModel::passInPriorities	(	const int *	priorities,
		bool	ifNotSimpleIntegers,
		int	defaultValue = 1000
	)

Pass in branching priorities.

If ifClique then priorities are on cliques otherwise priorities are on integer variables. Other type (if exists set to default) 1 is highest priority. (well actually -INT_MAX is but that's ugly) If hotstart > 0 then branches are created to force the variable to the value given by best solution. This enables a sort of hot start. The node choice should be greatest depth and hotstart should normally be switched off after a solution.

If ifNotSimpleIntegers true then appended to normal integers

const int* BlisModel::priority

(

)

const [inline]

Priorities.

Definition at line 596 of file BlisModel.h.

int BlisModel::priority

(

int

sequence

)

const [inline]

Returns priority level for an object (or 1000 if no priorities exist).

Definition at line 599 of file BlisModel.h.

const double BlisModel::getNodeWeight

(

)

const [inline]

Definition at line 604 of file BlisModel.h.

void BlisModel::setNodeWeight

(

double

nw

)

[inline]

Definition at line 606 of file BlisModel.h.

virtual void BlisModel::modelLog

(

)

[virtual]

Log of specific models.

Reimplemented from AlpsModel.

int BlisModel::getNumNodes

(

)

const [inline]

Get how many Nodes it took to solve the problem.

Definition at line 617 of file BlisModel.h.

int BlisModel::getNumIterations

(

)

const [inline]

Get how many iterations it took to solve the problem.

Definition at line 620 of file BlisModel.h.

int BlisModel::getAveIterations

(

)

const [inline]

Get the average iterations it took to solve a lp.

Definition at line 623 of file BlisModel.h.

void BlisModel::addNumNodes

(

int

newNodes = 1

)

[inline]

Increment node count.

Definition at line 626 of file BlisModel.h.

void BlisModel::addNumIterations

(

int

newIter

)

[inline]

Increment Iteration count.

Definition at line 629 of file BlisModel.h.

CoinMessageHandler* BlisModel::messageHandler

(

)

const [inline]

Get the message handler.

Definition at line 635 of file BlisModel.h.

BlisParams* BlisModel::BlisPar

(

)

[inline]

Access parameters.

Definition at line 639 of file BlisModel.h.

int BlisModel::getHotstartStrategy

(

)

[inline]

Don't know what it is.

Definition at line 643 of file BlisModel.h.

void BlisModel::setHotstartStrategy

(

int

value

)

[inline]

Definition at line 644 of file BlisModel.h.

virtual void BlisModel::registerKnowledge

(

)

[virtual]

Register knowledge.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual AlpsEncoded* BlisModel::encode

(

)

const [virtual]

The method that encodes the model into a encoded object.

Reimplemented from AlpsKnowledge.

Reimplemented in VrpModel.

virtual void BlisModel::decodeToSelf

(

AlpsEncoded &

)

[virtual]

The method that decodes the model from a encoded object.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

void BlisModel::init

(

)

[protected]

Intialize member data.

void BlisModel::createObjects

(

)

[protected]

Create variables and constraints.

void BlisModel::gutsOfDestructor

(

)

Actual destructor.

void BlisModel::setColMatrix

(

CoinPackedMatrix *

mat

)

[inline]

Pass a matrix in.

Definition at line 343 of file BlisModel.h.

void BlisModel::setNumCons

(

int

num

)

[inline]

Pass column upper bounds.

Definition at line 346 of file BlisModel.h.

void BlisModel::setNumVars

(

int

num

)

[inline]

Pass column upper bounds.

Definition at line 349 of file BlisModel.h.

void BlisModel::setNumElems

(

int

num

)

[inline]

Pass column upper bounds.

Definition at line 352 of file BlisModel.h.

void BlisModel::setConLb

(

double *

cl

)

[inline]

Pass column upper bounds.

Definition at line 355 of file BlisModel.h.

void BlisModel::setConUb

(

double *

cu

)

[inline]

Pass column lower bounds.

Definition at line 358 of file BlisModel.h.

void BlisModel::setVarLb

(

double *

lb

)

[inline]

Pass variable upper bounds.

Definition at line 361 of file BlisModel.h.

void BlisModel::setVarUb

(

double *

ub

)

[inline]

Pass variable lower bounds.

Definition at line 364 of file BlisModel.h.

void BlisModel::setColType

(

char *

colType

)

[inline]

Pass variable types.

Definition at line 367 of file BlisModel.h.

void BlisModel::setObjCoef

(

double *

obj

)

[inline]

Pass objective coefficients.

Definition at line 372 of file BlisModel.h.

virtual void BlisModel::readInstance

(

const char *

dataFile

)

[virtual]

For parallel code, only the master calls this function.

1) Read in the instance data 2) Set colMatrix_, varLB_, varUB_, conLB_, conUB numCols_, numRows_ 3) Set objCoef_ and objSense_ 4) Set colType_ ('C', 'I', or 'B') 5) Create variables and constraints 6) Set numCoreVariables_ and numCoreConstraints_

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual void BlisModel::importModel	(	std::vector< BlisVariable * >	vars,
		std::vector< BlisConstraint * >	cons
	)			[virtual]

For parallel code, only the master calls this function.

Import model from vars and cons. 1) Set colMatrix_, varLB_, varUB_, conLB_, conUB numCols_, numRows_ 2) Set objCoef_ (Assume minimization) 3) Set colType_ ('C', 'I', or 'B') 4) Set variables_ and constraints_ 5) Set numCoreVariables_ and numCoreConstraints_ NOTE: Blis takes over the memory ownship of vars and cons, which means users must NOT free vars or cons.

virtual void BlisModel::readParameters	(	const int	argnum,
		const char *const *	arglist
	)			[virtual]

Read in Alps, Blis parameters.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual void BlisModel::writeParameters

(

std::ostream &

outstream

)

const [virtual]

Write out parameters.

Reimplemented from AlpsModel.

virtual AlpsTreeNode* BlisModel::createRoot

(

)

[virtual]

For parallel code, only the master calls this function.

Create the root node based on model.

Reimplemented from AlpsModel.

virtual bool BlisModel::setupSelf

(

)

[virtual]

All processes call this function.

Do necessary work to make model usable. Return success or not. 1) Set numIntObjects_, intColIndices_, intObjectIndices_ 2) Load problem to LP solver. 3) Create integer objects (must after load to lp since using lp info) 4) Set branch strategy 5) Add heuristics 6) Add Cgl cut generators

Reimplemented from AlpsModel.

virtual void BlisModel::preprocess

(

)

[virtual]

Preprocessing the model.

Reimplemented from AlpsModel.

virtual void BlisModel::postprocess

(

)

[virtual]

Postprocessing the searching results.

Reimplemented from AlpsModel.

virtual void BlisModel::setSolver

(

OsiSolverInterface *

si

)

[inline, virtual]

Set lp solver.

Definition at line 428 of file BlisModel.h.

virtual OsiSolverInterface* BlisModel::getSolver

(

)

[inline, virtual]

Get lp solver.

Definition at line 431 of file BlisModel.h.

virtual OsiSolverInterface* BlisModel::solver

(

)

[inline, virtual]

Get lp solver.

Definition at line 434 of file BlisModel.h.

bool BlisModel::resolve

(

)

Resolving a lp.

void BlisModel::setActiveNode

(

AlpsTreeNode *

node

)

[inline]

Set active node.

Definition at line 440 of file BlisModel.h.

void BlisModel::setSolEstimate

(

double

est

)

[inline]

Set the solution estimate of the active node.

Definition at line 443 of file BlisModel.h.

int BlisModel::getNumStrong

(

)

[inline]

Get number of strong branchings.

Definition at line 446 of file BlisModel.h.

void BlisModel::addNumStrong

(

int

num = 1

)

[inline]

Add num to number of strong branchings.

Definition at line 449 of file BlisModel.h.

int BlisModel::getNumBranchResolve

(

)

[inline]

Get the maximum number of resolve during branching.

Definition at line 452 of file BlisModel.h.

void BlisModel::setNumBranchResolve

(

int

num

)

[inline]

Set the maximum number of resolve during branching.

Definition at line 455 of file BlisModel.h.

double* BlisModel::getObjCoef

(

)

const [inline]

Get objective coefficients.

Definition at line 462 of file BlisModel.h.

const double* BlisModel::getColLower

(

)

[inline]

Get column lower bound.

Definition at line 465 of file BlisModel.h.

const double* BlisModel::getColUpper

(

)

[inline]

Get column upper bound.

Definition at line 468 of file BlisModel.h.

int BlisModel::getNumCols

(

)

[inline]

Get number of columns.

Definition at line 471 of file BlisModel.h.

int BlisModel::getNumRows

(

)

[inline]

Get number of rows.

Definition at line 474 of file BlisModel.h.

double* BlisModel::varLB

(

)

[inline]

Get variable bounds arrary.

Definition at line 477 of file BlisModel.h.

double* BlisModel::varUB

(

)

[inline]

Definition at line 478 of file BlisModel.h.

double* BlisModel::conLB

(

)

[inline]

Get original constraint bounds arrary.

Definition at line 481 of file BlisModel.h.

double* BlisModel::conUB

(

)

[inline]

Definition at line 482 of file BlisModel.h.

double* BlisModel::startVarLB

(

)

[inline]

The starting variable bounds arrary of a subproblem (internal use).

Definition at line 485 of file BlisModel.h.

double* BlisModel::startVarUB

(

)

[inline]

Definition at line 486 of file BlisModel.h.

double* BlisModel::startConLB

(

)

[inline]

The starting constraint bounds arrary of a subproblem (internal use).

Definition at line 489 of file BlisModel.h.

double* BlisModel::startConUB

(

)

[inline]

Definition at line 490 of file BlisModel.h.

int* BlisModel::tempVarLBPos

(

)

[inline]

Temparory storage.

Definition at line 493 of file BlisModel.h.

int* BlisModel::tempVarUBPos

(

)

[inline]

Definition at line 494 of file BlisModel.h.

int* BlisModel::tempConLBPos

(

)

[inline]

Definition at line 495 of file BlisModel.h.

int* BlisModel::tempConUBPos

(

)

[inline]

Definition at line 496 of file BlisModel.h.

double BlisModel::getLpObjValue

(

)

const [inline]

Get current objective function value.

Definition at line 503 of file BlisModel.h.

const double* BlisModel::getLpSolution

(

)

const [inline]

Get active lp solution.

Definition at line 506 of file BlisModel.h.

int BlisModel::getNumSolutions

(

)

const [inline]

Get number of solutions.

Definition at line 513 of file BlisModel.h.

int BlisModel::getNumHeurSolutions

(

)

const [inline]

Get number of heuristic solutions.

Definition at line 516 of file BlisModel.h.

double* BlisModel::incumbent

(

)

[inline]

Return best ip solution found so far.

Definition at line 519 of file BlisModel.h.

int BlisModel::storeSolution	(	BlisSolutionType	how,
		BlisSolution *	sol
	)

Record a new incumbent solution and update objectiveValue.

double BlisModel::getCutoff

(

)

const [inline]

Get cut off value.

Definition at line 525 of file BlisModel.h.

void BlisModel::setCutoff

(

double

co

)

[inline]

Set cut off value.

Definition at line 528 of file BlisModel.h.

BlisSolution* BlisModel::feasibleSolutionHeur

(

const double *

solution

)

Test if a solution found by heuristic is feasible.

virtual BlisSolution* BlisModel::feasibleSolution	(	int &	numIntegerInfs,
		int &	numObjectInfs
	)			[virtual]

Test the current LP solution for feasiblility.

Scan all objects for indications of infeasibility. This is broken down into simple integer infeasibility (numIntegerInfs) and all other reports of infeasibility(numObjectInfs).

virtual BlisSolution* BlisModel::userFeasibleSolution	(	const double *	solution,
		bool &	feasible
	)			[inline, virtual]

User's criteria for a feasible solution.

If user think the given solution is feasible then need 1) set userFeasible to true, and 2) return a non-null solution. If user think the solution is infeasible then need 1) set userFeasible to false, and 2) return a null.

Reimplemented in VrpModel.

Definition at line 559 of file BlisModel.h.

BcpsBranchStrategy* BlisModel::branchStrategy

(

)

const [inline]

Get the current branching strategy.

Definition at line 575 of file BlisModel.h.

void BlisModel::setBranchingMethod

(

BcpsBranchStrategy *

method

)

[inline]

Set the branching strategy.

Definition at line 579 of file BlisModel.h.

void BlisModel::setBranchingMethod

(

BcpsBranchStrategy &

method

)

[inline]

Set the branching stratedy.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 585 of file BlisModel.h.

BcpsBranchStrategy* BlisModel::rampUpBranchStrategy

(

)

const [inline]

Get the current branching strategy.

Definition at line 589 of file BlisModel.h.

int BlisModel::numObjects

(

)

const [inline]

Get the number of objects.

Definition at line 597 of file BlisModel.h.

void BlisModel::setNumObjects

(

int

num

)

[inline]

Set the number of objects.

Definition at line 600 of file BlisModel.h.

BcpsObject** BlisModel::objects

(

)

[inline]

Get the array of objects.

Definition at line 603 of file BlisModel.h.

BcpsObject* BlisModel::objects

(

int

which

)

[inline]

Get the specified object.

Definition at line 606 of file BlisModel.h.

void BlisModel::setSharedObjectMark

(

int

i

)

[inline]

Mark object to be shared.

Definition at line 609 of file BlisModel.h.

void BlisModel::clearSharedObjectMark

(

)

[inline]

Clear all the share mark.

Definition at line 612 of file BlisModel.h.

void BlisModel::deleteObjects

(

)

Delete all object information.

void BlisModel::addObjects	(	int	numObjects,
		BcpsObject **	objects
	)

Add in object information.

Objects are cloned; the owner can delete the originals.

void BlisModel::createIntgerObjects

(

bool

startAgain

)

Identify integer variable.

int* BlisModel::getIntObjIndices

(

)

const [inline]

Get integers' object indices.

Definition at line 630 of file BlisModel.h.

int BlisModel::getNumIntObjects

(

)

const [inline]

Get number of integers.

Definition at line 633 of file BlisModel.h.

int* BlisModel::getIntColIndices

(

)

const [inline]

Get integers' column indices.

Definition at line 636 of file BlisModel.h.

bool BlisModel::checkInteger

(

double

value

)

const [inline]

Check if a value is integer.

Definition at line 639 of file BlisModel.h.

void BlisModel::analyzeObjective

(

)

void BlisModel::addHeuristic

(

BlisHeuristic *

heur

)

Add a heuristic.

BlisHeuristic* BlisModel::heuristics

(

int

i

)

const [inline]

Get a specific heuristic.

Definition at line 660 of file BlisModel.h.

int BlisModel::numHeuristics

(

)

const [inline]

Get the number of heuristics.

Definition at line 663 of file BlisModel.h.

void BlisModel::addCutGenerator

(

BlisConGenerator *

generator

)

Add a Blis cut generator.

void BlisModel::addCutGenerator	(	CglCutGenerator *	generator,
		const char *	name = NULL,
		BlisCutStrategy	strategy = BlisCutStrategyAuto,
		int	cutGenerationFrequency = 1,
		bool	normal = true,
		bool	atSolution = false,
		bool	whenInfeasible = false
	)

Add a Cgl cut generator.

BlisConGenerator* BlisModel::cutGenerators

(

int

i

)

const [inline]

Get a specific cut generator.

Definition at line 682 of file BlisModel.h.

int BlisModel::numCutGenerators

(

)

const [inline]

Get the number of cut generators.

Definition at line 685 of file BlisModel.h.

int BlisModel::getMaxNumCons

(

)

const [inline]

Get the max number of cuts can be generated.

Definition at line 688 of file BlisModel.h.

void BlisModel::setMaxNumCons

(

int

m

)

[inline]

Set the max number of cuts can be generated.

Definition at line 691 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPool

(

)

[inline]

Access constraint pool.

Definition at line 694 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPoolReceive

(

)

[inline]

Access receive constraint pool.

Definition at line 697 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPoolSend

(

)

[inline]

Access send constraint pool.

Definition at line 701 of file BlisModel.h.

int BlisModel::getNumOldConstraints

(

)

const [inline]

Get number of old constraints.

Definition at line 705 of file BlisModel.h.

void BlisModel::setNumOldConstraints

(

int

num

)

[inline]

Set number of old constraints.

Definition at line 708 of file BlisModel.h.

int BlisModel::getOldConstraintsSize

(

)

const [inline]

Get max number of old constraints.

Definition at line 711 of file BlisModel.h.

void BlisModel::setOldConstraintsSize

(

int

num

)

[inline]

Set max number of old constraints.

Definition at line 714 of file BlisModel.h.

BlisConstraint** BlisModel::oldConstraints

(

)

[inline]

Access old constraints.

Definition at line 717 of file BlisModel.h.

void BlisModel::setOldConstraints

(

BlisConstraint **

old

)

[inline]

set old constraints.

Definition at line 720 of file BlisModel.h.

void BlisModel::delOldConstraints

(

)

[inline]

Set max number of old constraints.

Definition at line 723 of file BlisModel.h.

BlisCutStrategy BlisModel::getCutStrategy

(

)

const [inline]

Query constraint generation strategy.

Definition at line 730 of file BlisModel.h.

void BlisModel::setCutStrategy

(

BlisCutStrategy

u

)

[inline]

Set constraint generation strategy.

Definition at line 735 of file BlisModel.h.

int BlisModel::getCutGenerationFrequency

(

)

const [inline]

Query constraint generation frequency.

Definition at line 738 of file BlisModel.h.

void BlisModel::setCutStrategy

(

int

f

)

[inline]

Set constraint generation frequency.

Definition at line 741 of file BlisModel.h.

int BlisModel::getDenseConCutoff

(

)

const [inline]

Get the thresheld to be considered as a dense constraint.

Definition at line 744 of file BlisModel.h.

void BlisModel::setDenseConCutoff

(

int

cutoff

)

[inline]

Set the thresheld to be considered as a dense constraint.

Definition at line 747 of file BlisModel.h.

double* BlisModel::getConRandoms

(

)

const [inline]

Get randoms for check parallel constraints.

Definition at line 750 of file BlisModel.h.

void BlisModel::passInPriorities	(	const int *	priorities,
		bool	ifNotSimpleIntegers,
		int	defaultValue = 1000
	)

Pass in branching priorities.

If ifClique then priorities are on cliques otherwise priorities are on integer variables. Other type (if exists set to default) 1 is highest priority. (well actually -INT_MAX is but that's ugly) If hotstart > 0 then branches are created to force the variable to the value given by best solution. This enables a sort of hot start. The node choice should be greatest depth and hotstart should normally be switched off after a solution.

If ifNotSimpleIntegers true then appended to normal integers

const int* BlisModel::priority

(

)

const [inline]

Priorities.

Definition at line 775 of file BlisModel.h.

int BlisModel::priority

(

int

sequence

)

const [inline]

Returns priority level for an object (or 1000 if no priorities exist).

Definition at line 778 of file BlisModel.h.

double BlisModel::getNodeWeight

(

)

const [inline]

Definition at line 783 of file BlisModel.h.

void BlisModel::setNodeWeight

(

double

nw

)

[inline]

Definition at line 785 of file BlisModel.h.

virtual void BlisModel::modelLog

(

)

[virtual]

Log of specific models.

Reimplemented from AlpsModel.

int BlisModel::getNumNodes

(

)

const [inline]

Get how many Nodes it took to solve the problem.

Definition at line 796 of file BlisModel.h.

int BlisModel::getNumIterations

(

)

const [inline]

Get how many iterations it took to solve the problem.

Definition at line 799 of file BlisModel.h.

int BlisModel::getAveIterations

(

)

const [inline]

Get the average iterations it took to solve a lp.

Definition at line 802 of file BlisModel.h.

void BlisModel::addNumNodes

(

int

newNodes = 1

)

[inline]

Increment node count.

Definition at line 805 of file BlisModel.h.

void BlisModel::addNumIterations

(

int

newIter

)

[inline]

Increment Iteration count.

Definition at line 808 of file BlisModel.h.

CoinMessageHandler* BlisModel::blisMessageHandler

(

)

const [inline]

Get the message handler.

Definition at line 814 of file BlisModel.h.

CoinMessages BlisModel::blisMessages

(

)

[inline]

Return messages.

Definition at line 818 of file BlisModel.h.

BlisParams* BlisModel::BlisPar

(

)

[inline]

Access parameters.

Definition at line 822 of file BlisModel.h.

virtual void BlisModel::nodeLog	(	AlpsTreeNode *	node,
		bool	force
	)			[virtual]

Node log.

Reimplemented from AlpsModel.

AlpsReturnStatus BlisModel::encodeBlis

(

AlpsEncoded *

encoded

)

const [protected]

Pack Blis portion of the model into an encoded object.

AlpsReturnStatus BlisModel::decodeBlis

(

AlpsEncoded &

encoded

)

[protected]

Unpack Blis portion of the model from an encoded object.

void BlisModel::packSharedPseudocost	(	AlpsEncoded *	encoded,
		int	numToShare
	)			[protected]

Retrieve and pack shared pseudocost.

void BlisModel::unpackSharedPseudocost

(

AlpsEncoded &

encoded

)

[protected]

Unpack and store shared pseduocost.

void BlisModel::packSharedConstraints

(

AlpsEncoded *

encoded

)

[protected]

Retrieve and pack shared constraints.

void BlisModel::unpackSharedConstraints

(

AlpsEncoded &

encoded

)

[protected]

Unpack and store shared constraints.

void BlisModel::packSharedVariables

(

AlpsEncoded *

encoded

)

[protected]

Retrieve and pack shared variables.

void BlisModel::unpackSharedVariables

(

AlpsEncoded &

encoded

)

[protected]

Unpack and store shared variables.

virtual void BlisModel::registerKnowledge

(

)

[virtual]

Register knowledge.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual AlpsEncoded* BlisModel::encode

(

)

const [virtual]

The method that encodes the model into an encoded object.

Reimplemented from AlpsKnowledge.

Reimplemented in VrpModel.

virtual void BlisModel::decodeToSelf

(

AlpsEncoded &

)

[virtual]

The method that decodes the model from an encoded object.

Reimplemented from AlpsModel.

Reimplemented in VrpModel.

virtual AlpsEncoded* BlisModel::packSharedKnowlege

(

)

[virtual]

Pack knowledge to be shared with others into an encoded object.

Return NULL means that no knowledge can be shared.

Reimplemented from AlpsModel.

virtual void BlisModel::unpackSharedKnowledge

(

AlpsEncoded &

)

[virtual]

Unpack and store shared knowledge from an encoded object.

Reimplemented from AlpsModel.

---

Member Data Documentation

OsiSolverInterface * BlisModel::lpSolver_ [private]

Lp solver.

Actually used.

If using presolve, then it is presolved; otherwise it is the original.

Definition at line 70 of file BlisModel.h.

CoinPackedMatrix * BlisModel::colMatrix_ [private]

Orignial column majored matrix.

Column majored matrix.

(For MPS file, etc.)

Definition at line 77 of file BlisModel.h.

double* BlisModel::origVarLB_ [private]

Original variable and constraint bounds.

Definition at line 81 of file BlisModel.h.

double* BlisModel::origVarUB_ [private]

Original variable and constraint bounds.

Definition at line 82 of file BlisModel.h.

double* BlisModel::origConLB_ [private]

Original variable and constraint bounds.

Definition at line 83 of file BlisModel.h.

double* BlisModel::origConUB_ [private]

Original variable and constraint bounds.

Definition at line 84 of file BlisModel.h.

int BlisModel::numCols_ [private]

Number of columns/rows/elements in active subproblem.

Number of columns/rows/elements.

Initaially is the same as numCoreVariables.

Definition at line 90 of file BlisModel.h.

int BlisModel::numRows_ [private]

Original variable and constraint bounds.

Definition at line 91 of file BlisModel.h.

int BlisModel::numElems_ [private]

Original variable and constraint bounds.

Definition at line 92 of file BlisModel.h.

double BlisModel::objSense_ [private]

Objective function.

Definition at line 97 of file BlisModel.h.

double * BlisModel::objCoef_ [private]

Original variable and constraint bounds.

Definition at line 98 of file BlisModel.h.

int BlisModel::numIntVars_ [private]

Column types.

Definition at line 103 of file BlisModel.h.

int* BlisModel::intVars_ [private]

Original variable and constraint bounds.

Definition at line 104 of file BlisModel.h.

char * BlisModel::colType_ [private]

Original variable and constraint bounds.

Definition at line 105 of file BlisModel.h.

int BlisModel::numSolutions_ [private]

Definition at line 112 of file BlisModel.h.

int BlisModel::numHeurSolutions_ [private]

Definition at line 113 of file BlisModel.h.

double BlisModel::incObjValue_ [private]

Saved lp solution for temporatory usage.

Incumbent objective value.

Definition at line 119 of file BlisModel.h.

double * BlisModel::incumbent_ [private]

Incumbent.

Definition at line 122 of file BlisModel.h.

double BlisModel::cutoff_ [private]

Cutoff in lp solver.

Definition at line 125 of file BlisModel.h.

double BlisModel::cutoffInc_ [private]

Cutoff increment.

Definition at line 128 of file BlisModel.h.

double * BlisModel::startVarLB_ [private]

Starting var/con bounds for processing each node.

Definition at line 136 of file BlisModel.h.

double * BlisModel::startVarUB_ [private]

Original variable and constraint bounds.

Definition at line 137 of file BlisModel.h.

double * BlisModel::startConLB_ [private]

Original variable and constraint bounds.

Definition at line 138 of file BlisModel.h.

double * BlisModel::startConUB_ [private]

Original variable and constraint bounds.

Definition at line 139 of file BlisModel.h.

BcpsBranchStrategy * BlisModel::branchStrategy_ [private]

Variable selection function.

Definition at line 143 of file BlisModel.h.

int BlisModel::hotstartStrategy_ [private]

Definition at line 148 of file BlisModel.h.

int BlisModel::numObjects_ [private]

Number of objects.

Definition at line 151 of file BlisModel.h.

BcpsObject ** BlisModel::objects_ [private]

The set of objects.

Definition at line 154 of file BlisModel.h.

int * BlisModel::priority_ [private]

Priorities of integer object.

Definition at line 157 of file BlisModel.h.

AlpsTreeNode * BlisModel::activeNode_ [private]

Active node.

Definition at line 160 of file BlisModel.h.

int BlisModel::numStrong_ [private]

Number of strong branching.

Definition at line 163 of file BlisModel.h.

double BlisModel::nodeWeight_ [private]

Definition at line 166 of file BlisModel.h.

int BlisModel::numHeuristics_ [private]

Number of heuristics.

Definition at line 173 of file BlisModel.h.

BlisHeuristic ** BlisModel::heuristics_ [private]

The list of heuristics.

Definition at line 176 of file BlisModel.h.

int BlisModel::useCons_ [private]

If use cut generators.

Definition at line 183 of file BlisModel.h.

int BlisModel::numCutGenerators_ [private]

Number of cut generators used.

Definition at line 186 of file BlisModel.h.

int BlisModel::maxNumCons_ [private]

Number of cuts can be generators.

Definition at line 189 of file BlisModel.h.

BlisConGenerator ** BlisModel::generators_ [private]

The list of cut generators used.

Definition at line 192 of file BlisModel.h.

BcpsConstraintPool * BlisModel::constraintPool_ [private]

Store all the cuts.

Definition at line 195 of file BlisModel.h.

BlisConstraint ** BlisModel::oldConstraints_ [private]

Temporary store old cuts at a node when installing a node.

Definition at line 198 of file BlisModel.h.

int BlisModel::oldConstraintsSize_ [private]

The memory size allocated for oldConstraints_.

Definition at line 201 of file BlisModel.h.

int BlisModel::numOldConstraints_ [private]

Number of old constraints.

Definition at line 204 of file BlisModel.h.

double * BlisModel::conRandoms_ [private]

Random keys.

Definition at line 207 of file BlisModel.h.

int BlisModel::denseConCutoff_ [private]

Dense constraint cutoff.

Definition at line 210 of file BlisModel.h.

BlisParams * BlisModel::BlisPar_ [private]

Blis parameters.

Definition at line 217 of file BlisModel.h.

CoinMessageHandler* BlisModel::handler_ [private]

Message handler.

Definition at line 220 of file BlisModel.h.

int BlisModel::numNodes_ [private]

Number of processed nodes.

Definition at line 223 of file BlisModel.h.

int BlisModel::numIterations_ [private]

Number of lp(Simplex) iterations.

Definition at line 226 of file BlisModel.h.

int BlisModel::aveIterations_ [private]

Average number of lp iterations to solve a subproblem.

Definition at line 229 of file BlisModel.h.

int * BlisModel::tempVarLBPos_ [private]

Tempory storage for var/con indices.

Definition at line 237 of file BlisModel.h.

int * BlisModel::tempVarUBPos_ [private]

Original variable and constraint bounds.

Definition at line 238 of file BlisModel.h.

int * BlisModel::tempConLBPos_ [private]

Original variable and constraint bounds.

Definition at line 239 of file BlisModel.h.

int * BlisModel::tempConUBPos_ [private]

Original variable and constraint bounds.

Definition at line 240 of file BlisModel.h.

bool BlisModel::isRoot_

If root node.

Definition at line 246 of file BlisModel.h.

double BlisModel::startTime_

Search starting time.

Definition at line 249 of file BlisModel.h.

double BlisModel::timeLimit_

Max solution time.

Definition at line 252 of file BlisModel.h.

double BlisModel::integerTol_

Integer tolerance.

Definition at line 255 of file BlisModel.h.

double BlisModel::optimalRelGap_

Relative optimal gap.

Definition at line 258 of file BlisModel.h.

double BlisModel::optimalAbsGap_

Absolute optimal gap.

Definition at line 261 of file BlisModel.h.

bool BlisModel::useHeuristics_

If use heuristics.

Definition at line 264 of file BlisModel.h.

OsiCuts BlisModel::newCutPool_

Store new cuts in each pass.

Definition at line 267 of file BlisModel.h.

std::vector< AlpsTreeNode * > BlisModel::leafToRootPath

Record the path from leaf to root.

Definition at line 272 of file BlisModel.h.

OsiSolverInterface* BlisModel::origLpSolver_ [protected]

Input by user.

Definition at line 76 of file BlisModel.h.

OsiSolverInterface* BlisModel::presolvedLpSolver_ [protected]

Presolved.

Definition at line 78 of file BlisModel.h.

double* BlisModel::varLB_ [protected]

Variable and constraint bounds.

Definition at line 92 of file BlisModel.h.

double* BlisModel::varUB_ [protected]

Original variable and constraint bounds.

Definition at line 93 of file BlisModel.h.

double* BlisModel::conLB_ [protected]

Original variable and constraint bounds.

Definition at line 94 of file BlisModel.h.

double* BlisModel::conUB_ [protected]

Original variable and constraint bounds.

Definition at line 95 of file BlisModel.h.

int BlisModel::numIntObjects_ [protected]

Column types.

Definition at line 113 of file BlisModel.h.

int* BlisModel::intColIndices_ [protected]

Original variable and constraint bounds.

Definition at line 114 of file BlisModel.h.

std::vector<BcpsVariable *> BlisModel::inputVar_ [protected]

User's input objects.

Definition at line 119 of file BlisModel.h.

std::vector<BcpsConstraint *> BlisModel::inputCon_ [protected]

Original variable and constraint bounds.

Definition at line 120 of file BlisModel.h.

BlisPresolve* BlisModel::presolve_ [protected]

Definition at line 127 of file BlisModel.h.

int* BlisModel::intObjIndices_ [protected]

Definition at line 152 of file BlisModel.h.

BcpsBranchStrategy* BlisModel::rampUpBranchStrategy_ [protected]

Definition at line 165 of file BlisModel.h.

BlisHotStartStrategy BlisModel::hotstartStrategy_ [protected]

Definition at line 170 of file BlisModel.h.

char* BlisModel::sharedObjectMark_ [protected]

The objects that can be shared.

Definition at line 179 of file BlisModel.h.

int BlisModel::numBranchResolve_ [protected]

Maximum number of resolve during branching.

Definition at line 194 of file BlisModel.h.

BlisCutStrategy BlisModel::cutStrategy_ [protected]

If use cut generators.

Definition at line 211 of file BlisModel.h.

int BlisModel::cutGenerationFrequency_ [protected]

Frequency of cut generation.

Definition at line 214 of file BlisModel.h.

CoinMessageHandler* BlisModel::blisMessageHandler_ [protected]

Message handler.

Definition at line 251 of file BlisModel.h.

CoinMessages BlisModel::blisMessages_ [protected]

Blis messages.

Definition at line 254 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPoolSend_ [protected]

Constraints that can be sent/broadcasted to other processes.

Definition at line 282 of file BlisModel.h.

BcpsConstraintPool* BlisModel::constraintPoolReceive_ [protected]

Constraints that are received from other processses.

Definition at line 285 of file BlisModel.h.

int BlisModel::boundingPass_

The number of passes during bounding procedure.

Definition at line 293 of file BlisModel.h.

BlisHeurStrategy BlisModel::heurStrategy_

If use heuristics.

Definition at line 305 of file BlisModel.h.

int BlisModel::heurCallFrequency_

Frequency of using heuristics.

Definition at line 308 of file BlisModel.h.

---

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

• /home/coin/svn-release/OptimizationSuite-1.1.0/Bcps/examples/Blis/BlisModel.h
• /home/coin/svn-release/OptimizationSuite-1.1.0/Blis/src/BlisModel.h