BFGS Class Reference

The quasi-Newton BFGS formula. More...

Inheritance diagram for BFGS:

Collaboration diagram for BFGS:

Public Member Functions
	TypeName ("BFGS")
	BFGS (const fvMesh &mesh, const dictionary &dict)
virtual	~BFGS ()=default
void	computeCorrection ()
virtual void	updateOldCorrection (const scalarField &oldCorrection)
virtual void	write ()
Public Member Functions inherited from updateMethod
	TypeName ("updateMethod")
	declareRunTimeSelectionTable (autoPtr, updateMethod, dictionary,(const fvMesh &mesh, const dictionary &dict),(mesh, dict))
	updateMethod (const fvMesh &mesh, const dictionary &dict)
virtual	~updateMethod ()=default
void	setObjectiveDeriv (const scalarField &derivs)
void	setConstraintDeriv (const PtrList< scalarField > &derivs)
void	setObjectiveValue (const scalar value)
void	setConstraintValues (const scalarField &values)
void	setStep (const scalar eta)
void	setGlobalSum (const bool useGlobalSum)
scalarField &	returnCorrection ()
void	writeCorrection ()
virtual scalar	computeMeritFunction ()
virtual scalar	meritFunctionDirectionalDerivative ()
bool &	initialEtaSet ()

Protected Member Functions
void	allocateMatrices ()
void	updateHessian ()
void	update ()
void	readFromDict ()
Protected Member Functions inherited from updateMethod
const scalarField	leftMult (const scalarField &, const SquareMatrix< scalar > &)
const scalarField	rightMult (const SquareMatrix< scalar > &, const scalarField &)
SquareMatrix< scalar >	outerProd (const scalarField &, const scalarField &)
SquareMatrix< scalar >	inv (SquareMatrix< scalar > A)
scalar	globalSum (const scalarField &field)
scalar	globalSum (tmp< scalarField > &tfield)
dictionary	coeffsDict ()

Protected Attributes
scalar	etaHessian_
label	nSteepestDescent_
labelList	activeDesignVars_
bool	scaleFirstHessian_
scalar	curvatureThreshold_
SquareMatrix< scalar >	HessianInv_
SquareMatrix< scalar >	HessianInvOld_
scalarField	derivativesOld_
scalarField	correctionOld_
label	counter_
Protected Attributes inherited from updateMethod
const fvMesh &	mesh_
const dictionary	dict_
IOdictionary	optMethodIODict_
scalarField	objectiveDerivatives_
PtrList< scalarField >	constraintDerivatives_
scalar	objectiveValue_
scalarField	cValues_
scalarField	correction_
scalarField	cumulativeCorrection_
scalar	eta_
bool	initialEtaSet_
word	correctionFolder_
bool	globalSum_

Additional Inherited Members
Static Public Member Functions inherited from updateMethod
static autoPtr< updateMethod >	New (const fvMesh &mesh, const dictionary &dict)

Detailed Description

The quasi-Newton BFGS formula.

Source files

• BFGS.H
• BFGS.C

Definition at line 50 of file BFGS.H.

Constructor & Destructor Documentation

BFGS()

BFGS	(	const fvMesh &	mesh,
		const dictionary &	dict
	)

Definition at line 162 of file BFGS.C.

References Foam::endl(), and Foam::Info.

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~BFGS()

virtual ~BFGS ( )

virtualdefault

Member Function Documentation

allocateMatrices()

void allocateMatrices ( )

protected

Definition at line 42 of file BFGS.C.

References BFGS::activeDesignVars_, BFGS::HessianInv_, BFGS::HessianInvOld_, Foam::I, Foam::identity(), and updateMethod::objectiveDerivatives_.

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updateHessian()

void updateHessian ( )

protected

Definition at line 60 of file BFGS.C.

References DebugInfo, Foam::endl(), forAll, Foam::Info, s, Foam::sqr(), WarningInFunction, y, and Foam::Zero.

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update()

void update ( )

protected

Definition at line 102 of file BFGS.C.

References Foam::endl(), forAll, Foam::Info, Field::map(), and Foam::Zero.

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readFromDict()

void readFromDict ( )

protected

Definition at line 137 of file BFGS.C.

References Foam::identity(), n, and Foam::Zero.

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TypeName()

TypeName

(

"BFGS"

)

computeCorrection()

void computeCorrection ( )

virtual

Implements updateMethod.

Definition at line 210 of file BFGS.C.

References update().

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updateOldCorrection()

void updateOldCorrection ( const scalarField &  oldCorrection )

virtual

Reimplemented from updateMethod.

Definition at line 226 of file BFGS.C.

References updateMethod::updateOldCorrection().

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write()

void write ( )

virtual

Reimplemented from updateMethod.

Definition at line 233 of file BFGS.C.

References updateMethod::write().

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Member Data Documentation

etaHessian_

scalar etaHessian_

protected

Definition at line 70 of file BFGS.H.

nSteepestDescent_

label nSteepestDescent_

protected

Definition at line 73 of file BFGS.H.

activeDesignVars_

labelList activeDesignVars_

protected

Definition at line 76 of file BFGS.H.

Referenced by BFGS::allocateMatrices().

scaleFirstHessian_

bool scaleFirstHessian_

protected

Definition at line 79 of file BFGS.H.

curvatureThreshold_

scalar curvatureThreshold_

protected

Definition at line 82 of file BFGS.H.

HessianInv_

SquareMatrix<scalar> HessianInv_

protected

Definition at line 86 of file BFGS.H.

Referenced by BFGS::allocateMatrices().

HessianInvOld_

SquareMatrix<scalar> HessianInvOld_

protected

Definition at line 89 of file BFGS.H.

Referenced by BFGS::allocateMatrices().

derivativesOld_

scalarField derivativesOld_

protected

Definition at line 92 of file BFGS.H.

correctionOld_

scalarField correctionOld_

protected

Definition at line 95 of file BFGS.H.

counter_

label counter_

protected

Definition at line 98 of file BFGS.H.

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

• src/optimisation/adjointOptimisation/adjoint/optimisation/updateMethod/BFGS/BFGS.H
• src/optimisation/adjointOptimisation/adjoint/optimisation/updateMethod/BFGS/BFGS.C