ROL
Public Member Functions | Private Member Functions | Private Attributes | List of all members
ROL::RiskNeutralConstraint< Real > Class Template Reference

#include <ROL_RiskNeutralConstraint.hpp>

+ Inheritance diagram for ROL::RiskNeutralConstraint< Real >:

Public Member Functions

 RiskNeutralConstraint (const ROL::Ptr< Constraint< Real > > &con, const ROL::Ptr< SampleGenerator< Real > > &xsampler, const ROL::Ptr< BatchManager< Real > > &cbman)
 
void update (const Vector< Real > &x, bool flag=true, int iter=-1)
 Update constraint functions. x is the optimization variable, flag = true if optimization variable is changed, iter is the outer algorithm iterations count. More...
 
void value (Vector< Real > &c, const Vector< Real > &x, Real &tol)
 Evaluate the constraint operator \(c:\mathcal{X} \rightarrow \mathcal{C}\) at \(x\). More...
 
void applyJacobian (Vector< Real > &jv, const Vector< Real > &v, const Vector< Real > &x, Real &tol)
 Apply the constraint Jacobian at \(x\), \(c'(x) \in L(\mathcal{X}, \mathcal{C})\), to vector \(v\). More...
 
void applyAdjointJacobian (Vector< Real > &ajv, const Vector< Real > &v, const Vector< Real > &x, Real &tol)
 Apply the adjoint of the the constraint Jacobian at \(x\), \(c'(x)^* \in L(\mathcal{C}^*, \mathcal{X}^*)\), to vector \(v\). More...
 
void applyAdjointHessian (Vector< Real > &ahuv, const Vector< Real > &u, const Vector< Real > &v, const Vector< Real > &x, Real &tol)
 Apply the derivative of the adjoint of the constraint Jacobian at \(x\) to vector \(u\) in direction \(v\), according to \( v \mapsto c''(x)(v,\cdot)^*u \). More...
 
- Public Member Functions inherited from ROL::Constraint< Real >
virtual ~Constraint (void)
 
 Constraint (void)
 
virtual void applyAdjointJacobian (Vector< Real > &ajv, const Vector< Real > &v, const Vector< Real > &x, const Vector< Real > &dualv, Real &tol)
 Apply the adjoint of the the constraint Jacobian at \(x\), \(c'(x)^* \in L(\mathcal{C}^*, \mathcal{X}^*)\), to vector \(v\). More...
 
virtual std::vector< Real > solveAugmentedSystem (Vector< Real > &v1, Vector< Real > &v2, const Vector< Real > &b1, const Vector< Real > &b2, const Vector< Real > &x, Real &tol)
 Approximately solves the augmented system

\[ \begin{pmatrix} I & c'(x)^* \\ c'(x) & 0 \end{pmatrix} \begin{pmatrix} v_{1} \\ v_{2} \end{pmatrix} = \begin{pmatrix} b_{1} \\ b_{2} \end{pmatrix} \]

where \(v_{1} \in \mathcal{X}\), \(v_{2} \in \mathcal{C}^*\), \(b_{1} \in \mathcal{X}^*\), \(b_{2} \in \mathcal{C}\), \(I : \mathcal{X} \rightarrow \mathcal{X}^*\) is an identity or Riesz operator, and \(0 : \mathcal{C}^* \rightarrow \mathcal{C}\) is a zero operator. More...

 
virtual void applyPreconditioner (Vector< Real > &pv, const Vector< Real > &v, const Vector< Real > &x, const Vector< Real > &g, Real &tol)
 Apply a constraint preconditioner at \(x\), \(P(x) \in L(\mathcal{C}, \mathcal{C}^*)\), to vector \(v\). Ideally, this preconditioner satisfies the following relationship:

\[ \left[c'(x) \circ R \circ c'(x)^* \circ P(x)\right] v = v \,, \]

where R is the appropriate Riesz map in \(L(\mathcal{X}^*, \mathcal{X})\). It is used by the solveAugmentedSystem method. More...

 
void activate (void)
 Turn on constraints. More...
 
void deactivate (void)
 Turn off constraints. More...
 
bool isActivated (void)
 Check if constraints are on. More...
 
virtual std::vector
< std::vector< Real > > 
checkApplyJacobian (const Vector< Real > &x, const Vector< Real > &v, const Vector< Real > &jv, const std::vector< Real > &steps, const bool printToStream=true, std::ostream &outStream=std::cout, const int order=1)
 Finite-difference check for the constraint Jacobian application. More...
 
virtual std::vector
< std::vector< Real > > 
checkApplyJacobian (const Vector< Real > &x, const Vector< Real > &v, const Vector< Real > &jv, const bool printToStream=true, std::ostream &outStream=std::cout, const int numSteps=ROL_NUM_CHECKDERIV_STEPS, const int order=1)
 Finite-difference check for the constraint Jacobian application. More...
 
virtual std::vector
< std::vector< Real > > 
checkApplyAdjointJacobian (const Vector< Real > &x, const Vector< Real > &v, const Vector< Real > &c, const Vector< Real > &ajv, const bool printToStream=true, std::ostream &outStream=std::cout, const int numSteps=ROL_NUM_CHECKDERIV_STEPS)
 Finite-difference check for the application of the adjoint of constraint Jacobian. More...
 
virtual Real checkAdjointConsistencyJacobian (const Vector< Real > &w, const Vector< Real > &v, const Vector< Real > &x, const bool printToStream=true, std::ostream &outStream=std::cout)
 
virtual Real checkAdjointConsistencyJacobian (const Vector< Real > &w, const Vector< Real > &v, const Vector< Real > &x, const Vector< Real > &dualw, const Vector< Real > &dualv, const bool printToStream=true, std::ostream &outStream=std::cout)
 
virtual std::vector
< std::vector< Real > > 
checkApplyAdjointHessian (const Vector< Real > &x, const Vector< Real > &u, const Vector< Real > &v, const Vector< Real > &hv, const std::vector< Real > &step, const bool printToScreen=true, std::ostream &outStream=std::cout, const int order=1)
 Finite-difference check for the application of the adjoint of constraint Hessian. More...
 
virtual std::vector
< std::vector< Real > > 
checkApplyAdjointHessian (const Vector< Real > &x, const Vector< Real > &u, const Vector< Real > &v, const Vector< Real > &hv, const bool printToScreen=true, std::ostream &outStream=std::cout, const int numSteps=ROL_NUM_CHECKDERIV_STEPS, const int order=1)
 Finite-difference check for the application of the adjoint of constraint Hessian. More...
 
virtual void setParameter (const std::vector< Real > &param)
 

Private Member Functions

void init (const Vector< Real > &c, const Vector< Real > &x)
 

Private Attributes

const ROL::Ptr< Constraint
< Real > > 
con_
 
const ROL::Ptr
< SampleGenerator< Real > > 
xsampler_
 
const ROL::Ptr< BatchManager
< Real > > 
cbman_
 
ROL::Ptr< Vector< Real > > conVec_
 
ROL::Ptr< Vector< Real > > optVec_
 
bool initialized_
 

Additional Inherited Members

- Protected Member Functions inherited from ROL::Constraint< Real >
const std::vector< Real > getParameter (void) const
 

Detailed Description

template<class Real>
class ROL::RiskNeutralConstraint< Real >

Definition at line 55 of file ROL_RiskNeutralConstraint.hpp.

Constructor & Destructor Documentation

template<class Real >
ROL::RiskNeutralConstraint< Real >::RiskNeutralConstraint ( const ROL::Ptr< Constraint< Real > > &  con,
const ROL::Ptr< SampleGenerator< Real > > &  xsampler,
const ROL::Ptr< BatchManager< Real > > &  cbman 
)
inline

Definition at line 75 of file ROL_RiskNeutralConstraint.hpp.

Member Function Documentation

template<class Real >
void ROL::RiskNeutralConstraint< Real >::init ( const Vector< Real > &  c,
const Vector< Real > &  x 
)
inlineprivate
template<class Real >
void ROL::RiskNeutralConstraint< Real >::update ( const Vector< Real > &  x,
bool  flag = true,
int  iter = -1 
)
inlinevirtual

Update constraint functions. x is the optimization variable, flag = true if optimization variable is changed, iter is the outer algorithm iterations count.

Reimplemented from ROL::Constraint< Real >.

Definition at line 80 of file ROL_RiskNeutralConstraint.hpp.

References ROL::RiskNeutralConstraint< Real >::con_.

template<class Real >
void ROL::RiskNeutralConstraint< Real >::value ( Vector< Real > &  c,
const Vector< Real > &  x,
Real &  tol 
)
inlinevirtual

Evaluate the constraint operator \(c:\mathcal{X} \rightarrow \mathcal{C}\) at \(x\).

Parameters
[out]cis the result of evaluating the constraint operator at x; a constraint-space vector
[in]xis the constraint argument; an optimization-space vector
[in,out]tolis a tolerance for inexact evaluations; currently unused

On return, \(\mathsf{c} = c(x)\), where \(\mathsf{c} \in \mathcal{C}\), \(\mathsf{x} \in \mathcal{X}\).


Implements ROL::Constraint< Real >.

Definition at line 84 of file ROL_RiskNeutralConstraint.hpp.

References ROL::RiskNeutralConstraint< Real >::cbman_, ROL::RiskNeutralConstraint< Real >::con_, ROL::RiskNeutralConstraint< Real >::conVec_, ROL::RiskNeutralConstraint< Real >::init(), ROL::RiskNeutralConstraint< Real >::xsampler_, and ROL::Vector< Real >::zero().

template<class Real >
void ROL::RiskNeutralConstraint< Real >::applyJacobian ( Vector< Real > &  jv,
const Vector< Real > &  v,
const Vector< Real > &  x,
Real &  tol 
)
inlinevirtual

Apply the constraint Jacobian at \(x\), \(c'(x) \in L(\mathcal{X}, \mathcal{C})\), to vector \(v\).

  @param[out]      jv  is the result of applying the constraint Jacobian to @b v at @b x; a constraint-space vector
  @param[in]       v   is an optimization-space vector
  @param[in]       x   is the constraint argument; an optimization-space vector
  @param[in,out]   tol is a tolerance for inexact evaluations; currently unused

  On return, \form#77, where

\(v \in \mathcal{X}\), \(\mathsf{jv} \in \mathcal{C}\).

The default implementation is a finite-difference approximation.


Reimplemented from ROL::Constraint< Real >.

Definition at line 96 of file ROL_RiskNeutralConstraint.hpp.

References ROL::RiskNeutralConstraint< Real >::cbman_, ROL::RiskNeutralConstraint< Real >::con_, ROL::RiskNeutralConstraint< Real >::conVec_, ROL::RiskNeutralConstraint< Real >::init(), ROL::RiskNeutralConstraint< Real >::xsampler_, and ROL::Vector< Real >::zero().

template<class Real >
void ROL::RiskNeutralConstraint< Real >::applyAdjointJacobian ( Vector< Real > &  ajv,
const Vector< Real > &  v,
const Vector< Real > &  x,
Real &  tol 
)
inlinevirtual

Apply the adjoint of the the constraint Jacobian at \(x\), \(c'(x)^* \in L(\mathcal{C}^*, \mathcal{X}^*)\), to vector \(v\).

  @param[out]      ajv is the result of applying the adjoint of the constraint Jacobian to @b v at @b x; a dual optimization-space vector
  @param[in]       v   is a dual constraint-space vector
  @param[in]       x   is the constraint argument; an optimization-space vector
  @param[in,out]   tol is a tolerance for inexact evaluations; currently unused

  On return, \form#81, where

\(v \in \mathcal{C}^*\), \(\mathsf{ajv} \in \mathcal{X}^*\).

The default implementation is a finite-difference approximation.


Reimplemented from ROL::Constraint< Real >.

Definition at line 108 of file ROL_RiskNeutralConstraint.hpp.

References ROL::RiskNeutralConstraint< Real >::con_, ROL::Vector< Real >::dual(), ROL::RiskNeutralConstraint< Real >::init(), ROL::RiskNeutralConstraint< Real >::optVec_, ROL::RiskNeutralConstraint< Real >::xsampler_, and ROL::Vector< Real >::zero().

template<class Real >
void ROL::RiskNeutralConstraint< Real >::applyAdjointHessian ( Vector< Real > &  ahuv,
const Vector< Real > &  u,
const Vector< Real > &  v,
const Vector< Real > &  x,
Real &  tol 
)
inlinevirtual

Apply the derivative of the adjoint of the constraint Jacobian at \(x\) to vector \(u\) in direction \(v\), according to \( v \mapsto c''(x)(v,\cdot)^*u \).

  @param[out]      ahuv is the result of applying the derivative of the adjoint of the constraint Jacobian at @b x to vector @b u in direction @b v; a dual optimization-space vector
  @param[in]       u    is the direction vector; a dual constraint-space vector
  @param[in]       v    is an optimization-space vector
  @param[in]       x    is the constraint argument; an optimization-space vector
  @param[in,out]   tol  is a tolerance for inexact evaluations; currently unused

  On return, \form#86, where

\(u \in \mathcal{C}^*\), \(v \in \mathcal{X}\), and \(\mathsf{ahuv} \in \mathcal{X}^*\).

The default implementation is a finite-difference approximation based on the adjoint Jacobian.


Reimplemented from ROL::Constraint< Real >.

Definition at line 120 of file ROL_RiskNeutralConstraint.hpp.

References ROL::RiskNeutralConstraint< Real >::con_, ROL::Vector< Real >::dual(), ROL::RiskNeutralConstraint< Real >::init(), ROL::RiskNeutralConstraint< Real >::optVec_, ROL::RiskNeutralConstraint< Real >::xsampler_, and ROL::Vector< Real >::zero().

Member Data Documentation

template<class Real >
const ROL::Ptr<Constraint<Real> > ROL::RiskNeutralConstraint< Real >::con_
private
template<class Real >
const ROL::Ptr<SampleGenerator<Real> > ROL::RiskNeutralConstraint< Real >::xsampler_
private
template<class Real >
const ROL::Ptr<BatchManager<Real> > ROL::RiskNeutralConstraint< Real >::cbman_
private
template<class Real >
ROL::Ptr<Vector<Real> > ROL::RiskNeutralConstraint< Real >::conVec_
private
template<class Real >
ROL::Ptr<Vector<Real> > ROL::RiskNeutralConstraint< Real >::optVec_
private
template<class Real >
bool ROL::RiskNeutralConstraint< Real >::initialized_
private

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