Advanced Multi-Physics (AMP)
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AMP::Operator::BDFRadDifOp Class Referenceabstract

#include <RadiationDiffusionFDBDFWrappers.h>

Inheritance diagram for AMP::Operator::BDFRadDifOp:
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Public Types

typedef std::shared_ptr< AMP::Operator::Operatorshared_ptr
 

Public Member Functions

void apply (AMP::LinearAlgebra::Vector::const_shared_ptr u_in, AMP::LinearAlgebra::Vector::shared_ptr r) override
 Compute r <- u + gamma*L(u)
 
virtual void apply (std::shared_ptr< const AMP::LinearAlgebra::Vector > u, std::shared_ptr< AMP::LinearAlgebra::Vector > f)=0
 
 BDFRadDifOp (std::shared_ptr< const AMP::Operator::OperatorParameters > params_)
 Constructor.
 
virtual std::shared_ptr< AMP::LinearAlgebra::VectorcreateInputVector () const
 Get a input vector ( For \(\mathbf{A(x)}\), \(\mathbf{x}\) is a input vector )
 
virtual std::shared_ptr< AMP::LinearAlgebra::VectorcreateOutputVector () const
 Get a left vector ( For \(\mathbf{y=A(x)}\), \(\mathbf{y}\) is an output vector )
 
virtual std::shared_ptr< AMP::LinearAlgebra::VariablegetInputVariable () const
 Return the input variable.
 
AMP::Utilities::MemoryType getMemoryLocation () const
 
std::shared_ptr< AMP::Mesh::MeshgetMesh ()
 Return the mesh.
 
std::shared_ptr< const AMP::Mesh::MeshgetMesh () const
 Return the mesh.
 
virtual std::shared_ptr< AMP::LinearAlgebra::VariablegetOutputVariable () const
 Return the output variable.
 
virtual std::shared_ptr< OperatorParametersgetParameters (const std::string &type, std::shared_ptr< const AMP::LinearAlgebra::Vector > u, std::shared_ptr< OperatorParameters > params=nullptr)
 
bool isValidVector (std::shared_ptr< const AMP::LinearAlgebra::Vector > ET) override
 Returns RadDifOp's isValidVector.
 
virtual void makeConsistent (std::shared_ptr< AMP::LinearAlgebra::Vector > vec)
 
virtual void reInitializeVector (std::shared_ptr< AMP::LinearAlgebra::Vector >)
 
virtual void reset (std::shared_ptr< const OperatorParameters > params)
 
virtual void residual (std::shared_ptr< const AMP::LinearAlgebra::Vector > f, std::shared_ptr< const AMP::LinearAlgebra::Vector > u, std::shared_ptr< AMP::LinearAlgebra::Vector > r)
 
virtual std::shared_ptr< AMP::LinearAlgebra::VectorSelectorselectInputVector () const
 Return the selector for input vectors.
 
virtual std::shared_ptr< AMP::LinearAlgebra::VectorSelectorselectOutputVector () const
 Return the selector for output vectors.
 
void setComponentScalings (std::shared_ptr< AMP::LinearAlgebra::Vector > s, std::shared_ptr< AMP::LinearAlgebra::Vector > f)
 Set multiphysics scalings.
 
virtual void setDebugPrintInfoLevel (int level)
 
void setGamma (AMP::Scalar gamma_)
 Set the scaled time-step size of the operator.
 
std::shared_ptr< AMP::LinearAlgebra::VectorsubsetInputVector (std::shared_ptr< AMP::LinearAlgebra::Vector > vec) const
 Subset input vector.
 
std::shared_ptr< const AMP::LinearAlgebra::VectorsubsetInputVector (std::shared_ptr< const AMP::LinearAlgebra::Vector > vec) const
 Subset input vector.
 
std::shared_ptr< AMP::LinearAlgebra::VectorsubsetOutputVector (std::shared_ptr< AMP::LinearAlgebra::Vector > vec) const
 Subset output vector.
 
std::shared_ptr< const AMP::LinearAlgebra::VectorsubsetOutputVector (std::shared_ptr< const AMP::LinearAlgebra::Vector > vec) const
 Subset output vector.
 
std::string type () const override
 Used to register this operator in a factory.
 
virtual ~BDFRadDifOp ()
 Destructor.
 

Public Attributes

double d_gamma = -1.0
 Time-step size (up to scaling by BDF constants)
 
std::shared_ptr< RadDifOpd_RadDifOp = nullptr
 The underlying radiation diffusion spatial operator.
 

Protected Member Functions

void getBackendFromInput (std::shared_ptr< AMP::Database > db)
 
std::shared_ptr< AMP::Operator::OperatorParametersgetJacobianParameters (AMP::LinearAlgebra::Vector::const_shared_ptr u_in) override
 Returns a parameter object that may be used to reset the associated RadDifPJacOp operator.
 
virtual std::shared_ptr< OperatorParametersgetJacobianParameters (std::shared_ptr< const AMP::LinearAlgebra::Vector >)
 
void setMemoryAndBackendParameters (std::shared_ptr< AMP::Database > db)
 

Protected Attributes

AMP::Utilities::Backend d_backend = AMP::Utilities::Backend::Serial
 
int d_iDebugPrintInfoLevel = 0
 
int d_iObject_id
 
AMP::Utilities::MemoryType d_memory_location = AMP::Utilities::MemoryType::none
 
std::shared_ptr< AMP::Mesh::Meshd_Mesh
 
std::shared_ptr< AMP::LinearAlgebra::Vectord_pFunctionScaling
 
std::shared_ptr< AMP::LinearAlgebra::Vectord_pScratchSolVector
 
std::shared_ptr< AMP::LinearAlgebra::Vectord_pSolutionScaling
 Vectors for multiphysics scaling.
 

Static Protected Attributes

static int d_iInstance_id
 

Detailed Description

The classes in this file either are (or are associated with) wrapping spatial radiation diffusion operators, i.e., RadiationDiffusionFD and its Jacobian, as backward Euler operators, i. e., multiplying them by some time-step size and adding an identity. These operators here are closely related to AMP::TimeIntegrator::TimeOperator -------------------------------------------------------------— *

------— Class wrapping a RadDifOp as a BDF operator -------— *

Implements the Operator u + gamma*L(u) where L is a RadDifOp. This operator arises from the BDF discretization of the ODEs u'(t) + L(u) = s(t). The incoming OperatorParameters are used to create operator L.

Definition at line 45 of file RadiationDiffusionFDBDFWrappers.h.

Member Typedef Documentation

◆ shared_ptr

Definition at line 29 of file Operator.h.

Constructor & Destructor Documentation

◆ BDFRadDifOp()

AMP::Operator::BDFRadDifOp::BDFRadDifOp ( std::shared_ptr< const AMP::Operator::OperatorParameters params_)

Constructor.

◆ ~BDFRadDifOp()

virtual AMP::Operator::BDFRadDifOp::~BDFRadDifOp ( )
inlinevirtual

Destructor.

Definition at line 58 of file RadiationDiffusionFDBDFWrappers.h.

Member Function Documentation

◆ apply() [1/2]

void AMP::Operator::BDFRadDifOp::apply ( AMP::LinearAlgebra::Vector::const_shared_ptr  u_in,
AMP::LinearAlgebra::Vector::shared_ptr  r 
)
override

Compute r <- u + gamma*L(u)

◆ apply() [2/2]

virtual void AMP::Operator::Operator::apply ( std::shared_ptr< const AMP::LinearAlgebra::Vector u,
std::shared_ptr< AMP::LinearAlgebra::Vector f 
)
pure virtualinherited

This base class can not give a meaningful definition of apply. See the derived classes for how they define apply. Each operator is free to define apply in a way that is appropriate for that operator.

Parameters
ushared pointer to const input vector u
fshared pointer to output vector storing result of applying this operator

Implemented in AMP::Operator::RadDifOp, AMP::Operator::RadDifOpPJac, AMP::Operator::FunctionOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, and AMP::Operator::MemorySpaceMigrationOperator.

◆ createInputVector()

virtual std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::Operator::createInputVector ( ) const
virtualinherited

◆ createOutputVector()

virtual std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::Operator::createOutputVector ( ) const
virtualinherited

Get a left vector ( For \(\mathbf{y=A(x)}\), \(\mathbf{y}\) is an output vector )

Returns
A newly created output vector

Reimplemented in AMP::Operator::IdentityOperator, AMP::Operator::LinearOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, and AMP::Operator::MemorySpaceMigrationOperator.

◆ getBackendFromInput()

void AMP::Operator::Operator::getBackendFromInput ( std::shared_ptr< AMP::Database db)
protectedinherited

◆ getInputVariable()

virtual std::shared_ptr< AMP::LinearAlgebra::Variable > AMP::Operator::Operator::getInputVariable ( ) const
inlinevirtualinherited

◆ getJacobianParameters() [1/2]

std::shared_ptr< AMP::Operator::OperatorParameters > AMP::Operator::BDFRadDifOp::getJacobianParameters ( AMP::LinearAlgebra::Vector::const_shared_ptr  u_in)
overrideprotected

Returns a parameter object that may be used to reset the associated RadDifPJacOp operator.

Parameters
[in]u_inThe current nonlinear iterate.

Note that the base class's getParameters() get's redirected to this function.

◆ getJacobianParameters() [2/2]

virtual std::shared_ptr< OperatorParameters > AMP::Operator::Operator::getJacobianParameters ( std::shared_ptr< const AMP::LinearAlgebra::Vector )
inlineprotectedvirtualinherited

This function returns a OperatorParameters object constructed by the operator which contains parameters from which new Jacobian operators can be created. Returning a parameter object instead of an Operator itself is meant to give users more flexibility.

Definition at line 180 of file Operator.h.

◆ getMemoryLocation()

AMP::Utilities::MemoryType AMP::Operator::Operator::getMemoryLocation ( ) const
inlineinherited

Definition at line 89 of file Operator.h.

References AMP::Operator::Operator::d_memory_location.

◆ getMesh() [1/2]

std::shared_ptr< AMP::Mesh::Mesh > AMP::Operator::Operator::getMesh ( )
inlineinherited

Return the mesh.

Definition at line 149 of file Operator.h.

References AMP::Operator::Operator::d_Mesh.

◆ getMesh() [2/2]

std::shared_ptr< const AMP::Mesh::Mesh > AMP::Operator::Operator::getMesh ( ) const
inlineinherited

Return the mesh.

Definition at line 152 of file Operator.h.

References AMP::Operator::Operator::d_Mesh.

◆ getOutputVariable()

virtual std::shared_ptr< AMP::LinearAlgebra::Variable > AMP::Operator::Operator::getOutputVariable ( ) const
inlinevirtualinherited

Return the output variable.

Reimplemented in AMP::Operator::DirichletMatrixCorrection, AMP::Operator::NeumannVectorCorrection, AMP::Operator::ColumnOperator, AMP::Operator::ConstraintsEliminationOperator, AMP::Operator::ContactResidualCorrection, AMP::Operator::CoupledOperator, AMP::Operator::DiffusionNonlinearFEOperator, AMP::Operator::FickSoretNonlinearFEOperator, AMP::Operator::GradientOperator, AMP::Operator::MassLinearFEOperator, AMP::Operator::NodeToGaussPointOperator, AMP::Operator::VolumeIntegralOperator, AMP::Operator::LinearBVPOperator, AMP::Operator::LinearOperator, AMP::Operator::AsyncMapOperator, AMP::Operator::Map1Dto3D, AMP::Operator::Map3Dto1D, AMP::Operator::MapSurface, AMP::Operator::MechanicsNonlinearFEOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, AMP::Operator::MemorySpaceMigrationOperator, AMP::Operator::NeutronicsRhs, AMP::Operator::FirstOperator, AMP::Operator::SecondOperator, AMP::Operator::NonlinearBVPOperator, AMP::Operator::PetscMatrixShellOperator, AMP::Operator::CoupledChannelToCladMapOperator, AMP::Operator::CoupledFlowFrapconOperator, AMP::Operator::FlowFrapconJacobian, AMP::Operator::FlowFrapconOperator, AMP::Operator::SubchannelFourEqNonlinearOperator, AMP::Operator::SubchannelToPointMap, AMP::Operator::SubchannelTwoEqNonlinearOperator, AMP::Operator::TrilinosMatrixShellOperator, AMP::Operator::VectorCopyOperator, AMP::TimeIntegrator::LinearTimeOperator, and AMP::TimeIntegrator::TimeOperator.

Definition at line 100 of file Operator.h.

◆ getParameters()

virtual std::shared_ptr< OperatorParameters > AMP::Operator::Operator::getParameters ( const std::string &  type,
std::shared_ptr< const AMP::LinearAlgebra::Vector u,
std::shared_ptr< OperatorParameters params = nullptr 
)
virtualinherited

This function returns a OperatorParameters object constructed by the operator which contains parameters from which new operators can be created. Returning a parameter object instead of an Operator itself is meant to give users more flexibility. Examples of how this functionality might be used would be the construction of Jacobian, frozen Jacobian, preconditioner approximations to the Jacobian, adjoint operators etc

Parameters
typestd:string specifying type of return operator parameters being requested. Currently the valid option is Jacobian
uconst pointer to current solution vector
paramspointer to additional parameters that might be required to construct the return parameters

Reimplemented in AMP::Operator::IdentityOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, and AMP::Operator::MemorySpaceMigrationOperator.

◆ isValidVector()

bool AMP::Operator::BDFRadDifOp::isValidVector ( std::shared_ptr< const AMP::LinearAlgebra::Vector ET)
inlineoverridevirtual

Returns RadDifOp's isValidVector.

Reimplemented from AMP::Operator::Operator.

Definition at line 68 of file RadiationDiffusionFDBDFWrappers.h.

References d_RadDifOp.

◆ makeConsistent()

virtual void AMP::Operator::Operator::makeConsistent ( std::shared_ptr< AMP::LinearAlgebra::Vector vec)
virtualinherited

virtual interface used to make a vector consistent in an operator defined way. An example of where an operator is required to make a vector consistent is in the context of AMR where ghost values on coarse-fine interfaces are filled in an operator dependent way. The default implementation is to simply call the vector makeConsistent(SET)

Reimplemented in AMP::Operator::MemorySpaceMigrationLinearOperator, AMP::Operator::MemorySpaceMigrationOperator, and AMP::TimeIntegrator::TimeOperator.

◆ reInitializeVector()

virtual void AMP::Operator::Operator::reInitializeVector ( std::shared_ptr< AMP::LinearAlgebra::Vector )
inlinevirtualinherited

re-initialize a vector, e.g. after a regrid operation has happened. This is useful for example when numerical overshoots or undershoots have happened due to interpolation for example The default is a null op

Reimplemented in AMP::TimeIntegrator::TimeOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, and AMP::Operator::MemorySpaceMigrationOperator.

Definition at line 167 of file Operator.h.

◆ reset()

virtual void AMP::Operator::Operator::reset ( std::shared_ptr< const OperatorParameters params)
virtualinherited

This function is useful for re-initializing/updating an operator

Parameters
paramsparameter object containing parameters to change

Reimplemented in AMP::TimeIntegrator::ColumnTimeOperator, AMP::TimeIntegrator::LinearTimeOperator, AMP::TimeIntegrator::TimeOperator, AMP::Operator::PowerShape, AMP::Operator::NeutronicsRhs, AMP::Operator::WeldOperator, AMP::Operator::ColumnBoundaryOperator, AMP::Operator::DirichletVectorCorrection, AMP::Operator::NeumannVectorCorrection, AMP::Operator::RobinMatrixCorrection, AMP::Operator::RobinVectorCorrection, AMP::Operator::ColumnOperator, AMP::Operator::FickSoretNonlinearFEOperator, AMP::Operator::IdentityOperator, AMP::Operator::GradientOperator, AMP::Operator::PelletStackOperator, AMP::Operator::MapOperator, AMP::Operator::MemorySpaceMigrationLinearOperator, AMP::Operator::MemorySpaceMigrationOperator, AMP::Operator::MoveMeshOperator, AMP::Operator::NonlinearBVPOperator, AMP::Operator::PetscMatrixShellOperator, AMP::Operator::CoupledFlowFrapconOperator, AMP::Operator::FlowFrapconJacobian, AMP::Operator::FlowFrapconOperator, AMP::Operator::SubchannelFourEqLinearOperator, AMP::Operator::SubchannelFourEqNonlinearOperator, AMP::Operator::SubchannelTwoEqLinearOperator, AMP::Operator::SubchannelTwoEqNonlinearOperator, AMP::Operator::TrilinosMatrixShellOperator, AMP::Operator::DirichletMatrixCorrection, AMP::Operator::MassMatrixCorrection, AMP::Operator::DiffusionNonlinearFEOperator, AMP::Operator::LinearFEOperator, AMP::Operator::VolumeIntegralOperator, AMP::Operator::LinearBVPOperator, AMP::Operator::Map1Dto3D, AMP::Operator::Map3Dto1D, and AMP::Operator::MechanicsNonlinearFEOperator.

Referenced by AMP::Operator::FirstOperator::FirstOperator(), and AMP::Operator::SecondOperator::SecondOperator().

◆ residual()

virtual void AMP::Operator::Operator::residual ( std::shared_ptr< const AMP::LinearAlgebra::Vector f,
std::shared_ptr< const AMP::LinearAlgebra::Vector u,
std::shared_ptr< AMP::LinearAlgebra::Vector r 
)
virtualinherited

Default base class implementation of the residual: f-L(u)

Parameters
fshared pointer to const vector rhs
ushared pointer to const vector u
rshared pointer to vector residual

Reimplemented in AMP::Solver::AMG::HasDeferConsistency< AMP::Operator::LinearOperator >, AMP::Operator::MemorySpaceMigrationLinearOperator, AMP::Operator::MemorySpaceMigrationOperator, AMP::TimeIntegrator::IDATimeOperator, and AMP::TimeIntegrator::TimeOperator.

◆ selectInputVector()

virtual std::shared_ptr< AMP::LinearAlgebra::VectorSelector > AMP::Operator::Operator::selectInputVector ( ) const
virtualinherited

◆ selectOutputVector()

virtual std::shared_ptr< AMP::LinearAlgebra::VectorSelector > AMP::Operator::Operator::selectOutputVector ( ) const
virtualinherited

◆ setComponentScalings()

void AMP::Operator::BDFRadDifOp::setComponentScalings ( std::shared_ptr< AMP::LinearAlgebra::Vector s,
std::shared_ptr< AMP::LinearAlgebra::Vector f 
)

Set multiphysics scalings.

◆ setDebugPrintInfoLevel()

virtual void AMP::Operator::Operator::setDebugPrintInfoLevel ( int  level)
inlinevirtualinherited

Specify level of diagnostic information printed during iterations.

Parameters
levelzero prints none or minimal information, higher numbers provide increasingly verbose debugging information.

Reimplemented in AMP::Operator::MemorySpaceMigrationLinearOperator, and AMP::Operator::MemorySpaceMigrationOperator.

Definition at line 97 of file Operator.h.

References AMP::Operator::Operator::d_iDebugPrintInfoLevel.

◆ setGamma()

void AMP::Operator::BDFRadDifOp::setGamma ( AMP::Scalar  gamma_)

Set the scaled time-step size of the operator.

◆ setMemoryAndBackendParameters()

void AMP::Operator::Operator::setMemoryAndBackendParameters ( std::shared_ptr< AMP::Database db)
protectedinherited

◆ subsetInputVector() [1/2]

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::Operator::subsetInputVector ( std::shared_ptr< AMP::LinearAlgebra::Vector vec) const
inherited

Subset input vector.

◆ subsetInputVector() [2/2]

std::shared_ptr< const AMP::LinearAlgebra::Vector > AMP::Operator::Operator::subsetInputVector ( std::shared_ptr< const AMP::LinearAlgebra::Vector vec) const
inherited

Subset input vector.

◆ subsetOutputVector() [1/2]

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::Operator::subsetOutputVector ( std::shared_ptr< AMP::LinearAlgebra::Vector vec) const
inherited

Subset output vector.

◆ subsetOutputVector() [2/2]

std::shared_ptr< const AMP::LinearAlgebra::Vector > AMP::Operator::Operator::subsetOutputVector ( std::shared_ptr< const AMP::LinearAlgebra::Vector vec) const
inherited

Subset output vector.

◆ type()

std::string AMP::Operator::BDFRadDifOp::type ( ) const
inlineoverridevirtual

Used to register this operator in a factory.

Implements AMP::Operator::Operator.

Definition at line 65 of file RadiationDiffusionFDBDFWrappers.h.

Member Data Documentation

◆ d_backend

AMP::Utilities::Backend AMP::Operator::Operator::d_backend = AMP::Utilities::Backend::Serial
protectedinherited

Definition at line 197 of file Operator.h.

◆ d_gamma

double AMP::Operator::BDFRadDifOp::d_gamma = -1.0

Time-step size (up to scaling by BDF constants)

Definition at line 50 of file RadiationDiffusionFDBDFWrappers.h.

◆ d_iDebugPrintInfoLevel

int AMP::Operator::Operator::d_iDebugPrintInfoLevel = 0
protectedinherited

Definition at line 187 of file Operator.h.

Referenced by AMP::Operator::Operator::setDebugPrintInfoLevel().

◆ d_iInstance_id

int AMP::Operator::Operator::d_iInstance_id
staticprotectedinherited

Definition at line 191 of file Operator.h.

◆ d_iObject_id

int AMP::Operator::Operator::d_iObject_id
protectedinherited

Definition at line 189 of file Operator.h.

◆ d_memory_location

AMP::Utilities::MemoryType AMP::Operator::Operator::d_memory_location = AMP::Utilities::MemoryType::none
protectedinherited

Definition at line 195 of file Operator.h.

Referenced by AMP::Operator::Operator::getMemoryLocation().

◆ d_Mesh

std::shared_ptr<AMP::Mesh::Mesh> AMP::Operator::Operator::d_Mesh
protectedinherited

◆ d_pFunctionScaling

std::shared_ptr<AMP::LinearAlgebra::Vector> AMP::Operator::BDFRadDifOp::d_pFunctionScaling
protected

Definition at line 85 of file RadiationDiffusionFDBDFWrappers.h.

◆ d_pScratchSolVector

std::shared_ptr<AMP::LinearAlgebra::Vector> AMP::Operator::BDFRadDifOp::d_pScratchSolVector
protected

Definition at line 86 of file RadiationDiffusionFDBDFWrappers.h.

◆ d_pSolutionScaling

std::shared_ptr<AMP::LinearAlgebra::Vector> AMP::Operator::BDFRadDifOp::d_pSolutionScaling
protected

Vectors for multiphysics scaling.

Definition at line 84 of file RadiationDiffusionFDBDFWrappers.h.

◆ d_RadDifOp

std::shared_ptr<RadDifOp> AMP::Operator::BDFRadDifOp::d_RadDifOp = nullptr

The underlying radiation diffusion spatial operator.

Definition at line 52 of file RadiationDiffusionFDBDFWrappers.h.

Referenced by isValidVector().


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



Advanced Multi-Physics (AMP)
Oak Ridge National Laboratory
Idaho National Laboratory
Los Alamos National Laboratory
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Last updated: Tue Mar 10 2026 13:06:44.
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