LOCA::MultiContinuation::ArcLengthConstraint Class Reference

Implementation of LOCA::MultiContinuation::ConstraintInterfaceMVDX for arclength continuation. More...

#include <LOCA_MultiContinuation_ArcLengthConstraint.H>

Inheritance diagram for LOCA::MultiContinuation::ArcLengthConstraint:

Inheritance graph
[legend]
Collaboration diagram for LOCA::MultiContinuation::ArcLengthConstraint:

Collaboration graph
[legend]

List of all members.

Public Member Functions

 ArcLengthConstraint (const Teuchos::RCP< LOCA::GlobalData > &global_data, const Teuchos::RCP< LOCA::MultiContinuation::ArcLengthGroup > &grp)
 Constructor.
 ArcLengthConstraint (const ArcLengthConstraint &source, NOX::CopyType type=NOX::DeepCopy)
 Copy constructor.
 ~ArcLengthConstraint ()
 Destructor.
virtual void setArcLengthGroup (const Teuchos::RCP< LOCA::MultiContinuation::ArcLengthGroup > &grp)
 Set pointer to arclength group.
Implementation of LOCA::MultiContinuation::ConstraintInterface
virtual methods

virtual void copy (const ConstraintInterface &source)
 Copy.
virtual Teuchos::RCP
< LOCA::MultiContinuation::ConstraintInterface > 		clone (NOX::CopyType type=NOX::DeepCopy) const
 Cloning function.
virtual int numConstraints () const
 Return number of constraints.
virtual void setX (const NOX::Abstract::Vector &y)
 Set the solution vector to y.
virtual void setParam (int paramID, double val)
 Sets parameter indexed by paramID.
virtual void setParams (const vector< int > &paramIDs, const NOX::Abstract::MultiVector::DenseMatrix &vals)
 Sets parameters indexed by paramIDs.
virtual
NOX::Abstract::Group::ReturnType 		computeConstraints ()
 Compute continuation constraint equations.
virtual
NOX::Abstract::Group::ReturnType 		computeDX ()
 Compute derivative of constraints w.r.t. solution vector x.
virtual
NOX::Abstract::Group::ReturnType 		computeDP (const vector< int > &paramIDs, NOX::Abstract::MultiVector::DenseMatrix &dgdp, bool isValidG)
 Compute derivative of constraints w.r.t. supplied parameters.
virtual bool isConstraints () const
 Return true if constraint residuals are valid.
virtual bool isDX () const
 Return true if derivatives of constraints w.r.t. x are valid.
virtual const
NOX::Abstract::MultiVector::DenseMatrix & 		getConstraints () const
 Return constraint residuals.
virtual const
NOX::Abstract::MultiVector * 		getDX () const
 Return solution component of constraint derivatives.
virtual bool isDXZero () const
 Return true if solution component of constraint derivatives is zero.

Protected Attributes

Teuchos::RCP< LOCA::GlobalData > globalData
 LOCA global data object.
Teuchos::RCP
< LOCA::MultiContinuation::ArcLengthGroup > 		arcLengthGroup
 Pointer to arc-length group.
NOX::Abstract::MultiVector::DenseMatrix constraints
 Constraint values.
bool isValidConstraints
 Flag indicating whether constraints are valid.
vector< int > conParamIDs
 Continuation parameter IDs.

Private Member Functions

ArcLengthConstraint & operator= (const ArcLengthConstraint &source)
 Prohibit generation and use of operator=().

Detailed Description

Implementation of LOCA::MultiContinuation::ConstraintInterfaceMVDX for arclength continuation.

This class implements the arclength constraint equation for pseudo-arclength continuation:

\[ g(x,p,x_0,p_0,x^\ast,p^\ast,v,\Delta s)= (x-x^\ast)^Tv_x + (p-p^\ast) v_p - \Delta s \]

where $v_x$, $v_p$ are the solution and parameter components of the predictor direction $v$ respectively. Since the derivative of $g$ with respect to $x$ is just $v$, the predictor tangent, this class implements the MVDX version of the constraint interface.

Definition at line 78 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Constructor & Destructor Documentation

LOCA::MultiContinuation::ArcLengthConstraint::ArcLengthConstraint ( const Teuchos::RCP< LOCA::GlobalData > &  global_data,
const Teuchos::RCP< LOCA::MultiContinuation::ArcLengthGroup > &  grp 
)

Constructor.

Definition at line 47 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

Referenced by clone().

LOCA::MultiContinuation::ArcLengthConstraint::ArcLengthConstraint ( const ArcLengthConstraint &  source,
NOX::CopyType  type = NOX::DeepCopy 
)

Copy constructor.

Definition at line 58 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References NOX::DeepCopy, and isValidConstraints.

LOCA::MultiContinuation::ArcLengthConstraint::~ArcLengthConstraint (  ) 

Destructor.

Definition at line 71 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

Member Function Documentation

void LOCA::MultiContinuation::ArcLengthConstraint::setArcLengthGroup ( const Teuchos::RCP< LOCA::MultiContinuation::ArcLengthGroup > &  grp  )  [virtual]

Set pointer to arclength group.

Definition at line 76 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References arcLengthGroup.

void LOCA::MultiContinuation::ArcLengthConstraint::copy ( const ConstraintInterface &  source  )  [virtual]

Copy.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 82 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References conParamIDs, constraints, globalData, and isValidConstraints.

Teuchos::RCP< LOCA::MultiContinuation::ConstraintInterface > LOCA::MultiContinuation::ArcLengthConstraint::clone ( NOX::CopyType  type = NOX::DeepCopy  )  const [virtual]

Cloning function.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 97 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References ArcLengthConstraint().

int LOCA::MultiContinuation::ArcLengthConstraint::numConstraints (  )  const [virtual]

Return number of constraints.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 103 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References constraints.

void LOCA::MultiContinuation::ArcLengthConstraint::setX ( const NOX::Abstract::Vector &  y  )  [virtual]

Set the solution vector to y.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 109 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References isValidConstraints.

void LOCA::MultiContinuation::ArcLengthConstraint::setParam ( int  paramID,
double  val 
) [virtual]

Sets parameter indexed by paramID.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 116 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References isValidConstraints.

void LOCA::MultiContinuation::ArcLengthConstraint::setParams ( const vector< int > &  paramIDs,
const NOX::Abstract::MultiVector::DenseMatrix &  vals 
) [virtual]

Sets parameters indexed by paramIDs.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 122 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References isValidConstraints.

NOX::Abstract::Group::ReturnType LOCA::MultiContinuation::ArcLengthConstraint::computeConstraints (  )  [virtual]

Compute continuation constraint equations.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 130 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References arcLengthGroup, LOCA::MultiContinuation::ExtendedMultiVector::clone(), constraints, globalData, isValidConstraints, and NOX::Abstract::Group::Ok.

Referenced by computeDP(), and computeDX().

NOX::Abstract::Group::ReturnType LOCA::MultiContinuation::ArcLengthConstraint::computeDX (  )  [virtual]

Compute derivative of constraints w.r.t. solution vector x.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 173 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References computeConstraints(), isValidConstraints, and NOX::Abstract::Group::Ok.

NOX::Abstract::Group::ReturnType LOCA::MultiContinuation::ArcLengthConstraint::computeDP ( const vector< int > &  paramIDs,
NOX::Abstract::MultiVector::DenseMatrix &  dgdp,
bool  isValidG 
) [virtual]

Compute derivative of constraints w.r.t. supplied parameters.

The first column of dgdp should be filled with the constraint residuals $g$ if isValidG is false. If isValidG is true, then the dgdp contains $g$ on input.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 182 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References arcLengthGroup, computeConstraints(), conParamIDs, constraints, LOCA::Extended::MultiVector::getScalar(), globalData, isValidConstraints, and NOX::Abstract::Group::Ok.

bool LOCA::MultiContinuation::ArcLengthConstraint::isConstraints (  )  const [virtual]

Return true if constraint residuals are valid.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 230 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References isValidConstraints.

bool LOCA::MultiContinuation::ArcLengthConstraint::isDX (  )  const [virtual]

Return true if derivatives of constraints w.r.t. x are valid.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 236 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References isValidConstraints.

const NOX::Abstract::MultiVector::DenseMatrix & LOCA::MultiContinuation::ArcLengthConstraint::getConstraints (  )  const [virtual]

Return constraint residuals.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 242 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References constraints.

const NOX::Abstract::MultiVector * LOCA::MultiContinuation::ArcLengthConstraint::getDX (  )  const [virtual]

Return solution component of constraint derivatives.

Implements LOCA::MultiContinuation::ConstraintInterfaceMVDX.

Definition at line 248 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

References arcLengthGroup, and LOCA::MultiContinuation::ExtendedMultiVector::getXMultiVec().

bool LOCA::MultiContinuation::ArcLengthConstraint::isDXZero (  )  const [virtual]

Return true if solution component of constraint derivatives is zero.

Implements LOCA::MultiContinuation::ConstraintInterface.

Definition at line 258 of file LOCA_MultiContinuation_ArcLengthConstraint.C.

ArcLengthConstraint& LOCA::MultiContinuation::ArcLengthConstraint::operator= ( const ArcLengthConstraint &  source  )  [private]

Prohibit generation and use of operator=().

Member Data Documentation

Teuchos::RCP<LOCA::GlobalData> LOCA::MultiContinuation::ArcLengthConstraint::globalData [protected]

LOCA global data object.

Definition at line 175 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Referenced by computeConstraints(), computeDP(), and copy().

Teuchos::RCP< LOCA::MultiContinuation::ArcLengthGroup> LOCA::MultiContinuation::ArcLengthConstraint::arcLengthGroup [protected]

Pointer to arc-length group.

Definition at line 179 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Referenced by computeConstraints(), computeDP(), getDX(), and setArcLengthGroup().

NOX::Abstract::MultiVector::DenseMatrix LOCA::MultiContinuation::ArcLengthConstraint::constraints [protected]

Constraint values.

Definition at line 182 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Referenced by computeConstraints(), computeDP(), copy(), getConstraints(), and numConstraints().

bool LOCA::MultiContinuation::ArcLengthConstraint::isValidConstraints [protected]

Flag indicating whether constraints are valid.

Definition at line 185 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Referenced by ArcLengthConstraint(), computeConstraints(), computeDP(), computeDX(), copy(), isConstraints(), isDX(), setParam(), setParams(), and setX().

vector<int> LOCA::MultiContinuation::ArcLengthConstraint::conParamIDs [protected]

Continuation parameter IDs.

Definition at line 188 of file LOCA_MultiContinuation_ArcLengthConstraint.H.

Referenced by computeDP(), and copy().

The documentation for this class was generated from the following files:
Generated on Wed Oct 21 14:28:36 2009 for Nonlinear Solver Project by  doxygen 1.5.9