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

#include <DiffusionLinearFEOperator.h>

Inheritance diagram for AMP::Operator::DiffusionLinearFEOperator:
Inheritance graph
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Public Types

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

Public Member Functions

virtual void apply (AMP::LinearAlgebra::Vector::const_shared_ptr u, AMP::LinearAlgebra::Vector::shared_ptr f) override
 
virtual void apply (std::shared_ptr< const AMP::LinearAlgebra::Vector > u, std::shared_ptr< AMP::LinearAlgebra::Vector > f)=0
 
std::shared_ptr< AMP::LinearAlgebra::VectorcreateInputVector () const override
 Get a input vector ( For \(\mathbf{A(x)}\), \(\mathbf{x}\) is a input vector )
 
std::shared_ptr< AMP::LinearAlgebra::VectorcreateOutputVector () const override
 Get an output vector ( For \(\mathbf{y=A(x)}\), \(\mathbf{y}\) is an output vector )
 
 DiffusionLinearFEOperator (std::shared_ptr< const OperatorParameters > params)
 
std::shared_ptr< AMP::LinearAlgebra::VariablegetInputVariable () const override
 Return the input variable.
 
virtual std::shared_ptr< AMP::LinearAlgebra::MatrixgetMatrix ()
 
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.
 
std::shared_ptr< AMP::LinearAlgebra::VariablegetOutputVariable () const override
 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)
 
std::shared_ptr< DiffusionTransportModelgetTransportModel ()
 
virtual bool isValidVector (std::shared_ptr< const AMP::LinearAlgebra::Vector >)
 given a vector return whether it is valid or not
 
virtual void makeConsistent (std::shared_ptr< AMP::LinearAlgebra::Vector > vec)
 
void postAssembly () override
 
void postElementOperation () override
 
void preAssembly (std::shared_ptr< const OperatorParameters > params) override
 
void preElementOperation (const AMP::Mesh::MeshElement &) override
 
virtual void reInitializeVector (std::shared_ptr< AMP::LinearAlgebra::Vector >)
 
void reset (std::shared_ptr< const OperatorParameters >) override
 
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.
 
virtual void setDebugPrintInfoLevel (int level)
 
virtual void setMatrix (std::shared_ptr< AMP::LinearAlgebra::Matrix > in_mat)
 
virtual void setVariables (std::shared_ptr< AMP::LinearAlgebra::Variable > in, std::shared_ptr< AMP::LinearAlgebra::Variable > out)
 
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
 Return the name of the operator.
 
virtual ~DiffusionLinearFEOperator ()
 

Protected Member Functions

void createCurrentLibMeshElement ()
 
void destroyCurrentLibMeshElement ()
 
 DiffusionLinearFEOperator (std::shared_ptr< const DiffusionLinearFEOperatorParameters > params, bool)
 
void getBackendFromInput (std::shared_ptr< AMP::Database > db)
 
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
 
std::set< std::string > d_constantVecs
 
libMesh::Elem * d_currElemPtr
 
AMP::Mesh::MeshElementVectorPtr d_currNodes
 
std::shared_ptr< DiffusionLinearElementd_diffLinElem
 
std::vector< std::vector< double > > d_elementStiffnessMatrix
 
std::shared_ptr< ElementOperationd_elemOp
 
int d_iDebugPrintInfoLevel = 0
 
std::shared_ptr< AMP::Discretization::DOFManagerd_inDofMap
 
std::shared_ptr< AMP::LinearAlgebra::Variabled_inputVariable
 
std::map< std::string, std::shared_ptr< const AMP::LinearAlgebra::Vector > > d_inputVecs
 
int d_iObject_id
 
std::shared_ptr< AMP::LinearAlgebra::Matrixd_matrix
 
AMP::Utilities::MemoryType d_memory_location = AMP::Utilities::MemoryType::none
 
std::shared_ptr< AMP::Mesh::Meshd_Mesh
 
std::shared_ptr< AMP::Discretization::DOFManagerd_outDofMap
 
std::shared_ptr< AMP::LinearAlgebra::Variabled_outputVariable
 
std::shared_ptr< DiffusionTransportModeld_transportModel
 

Static Protected Attributes

static int d_iInstance_id
 

Detailed Description

Definition at line 16 of file DiffusionLinearFEOperator.h.

Member Typedef Documentation

◆ shared_ptr

Definition at line 29 of file Operator.h.

Constructor & Destructor Documentation

◆ DiffusionLinearFEOperator() [1/2]

AMP::Operator::DiffusionLinearFEOperator::DiffusionLinearFEOperator ( std::shared_ptr< const OperatorParameters params)
explicit

◆ ~DiffusionLinearFEOperator()

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

Definition at line 21 of file DiffusionLinearFEOperator.h.

◆ DiffusionLinearFEOperator() [2/2]

AMP::Operator::DiffusionLinearFEOperator::DiffusionLinearFEOperator ( std::shared_ptr< const DiffusionLinearFEOperatorParameters params,
bool   
)
explicitprotected

Member Function Documentation

◆ apply() [1/2]

virtual void AMP::Operator::LinearOperator::apply ( AMP::LinearAlgebra::Vector::const_shared_ptr  u,
AMP::LinearAlgebra::Vector::shared_ptr  f 
)
overridevirtualinherited

The apply function for this operator, A, performs the following operation: f = A(u) Here, A(u) is simply a Matrix-Vector multiplication.

Parameters
[in]uinput vector.
[out]fresidual/output vector.

Reimplemented in AMP::Operator::IdentityOperator, AMP::Operator::PetscMatrixShellOperator, AMP::Operator::TrilinosMatrixShellOperator, and AMP::Operator::BDFRadDifOpPJac.

◆ 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.

◆ createCurrentLibMeshElement()

void AMP::Operator::LinearFEOperator::createCurrentLibMeshElement ( )
protectedinherited

◆ createInputVector()

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::LinearOperator::createInputVector ( ) const
overridevirtualinherited

Get a input vector ( For \(\mathbf{A(x)}\), \(\mathbf{x}\) is a input vector )

Returns
A newly created input vector

Reimplemented from AMP::Operator::Operator.

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

◆ createOutputVector()

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Operator::LinearOperator::createOutputVector ( ) const
overridevirtualinherited

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

Returns
A newly created output vector

Reimplemented from AMP::Operator::Operator.

Reimplemented in AMP::Operator::MemorySpaceMigrationLinearOperator.

◆ destroyCurrentLibMeshElement()

void AMP::Operator::LinearFEOperator::destroyCurrentLibMeshElement ( )
protectedinherited

◆ getBackendFromInput()

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

◆ getInputVariable()

std::shared_ptr< AMP::LinearAlgebra::Variable > AMP::Operator::LinearOperator::getInputVariable ( ) const
inlineoverridevirtualinherited

◆ getJacobianParameters()

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.

◆ getMatrix()

virtual std::shared_ptr< AMP::LinearAlgebra::Matrix > AMP::Operator::LinearOperator::getMatrix ( )
virtualinherited
Returns
The matrix representation of this linear operator.

Reimplemented in AMP::Operator::MemorySpaceMigrationLinearOperator.

◆ 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()

std::shared_ptr< AMP::LinearAlgebra::Variable > AMP::Operator::LinearOperator::getOutputVariable ( ) const
inlineoverridevirtualinherited

◆ 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.

◆ getTransportModel()

std::shared_ptr< DiffusionTransportModel > AMP::Operator::DiffusionLinearFEOperator::getTransportModel ( )

◆ isValidVector()

virtual bool AMP::Operator::Operator::isValidVector ( std::shared_ptr< const AMP::LinearAlgebra::Vector )
inlinevirtualinherited

◆ 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.

◆ postAssembly()

void AMP::Operator::DiffusionLinearFEOperator::postAssembly ( )
overridevirtual

This function will be called just after looping over all the elements to build the stiffness matrix, so if the derived classes need to perform any operations such as freeing any temporary memory allocations they can do so by implementing these operations in this function.

Implements AMP::Operator::LinearFEOperator.

◆ postElementOperation()

void AMP::Operator::DiffusionLinearFEOperator::postElementOperation ( )
overridevirtual

This function will be called once for each element, just after performing the element operation. Typically, the element stiffness matrix is added to the global stiffness matrix in this function.

Implements AMP::Operator::LinearFEOperator.

◆ preAssembly()

void AMP::Operator::DiffusionLinearFEOperator::preAssembly ( std::shared_ptr< const OperatorParameters )
overridevirtual

This function will be called just before looping over the elements to build the stiffness matrix, so if the derived classes need to perform some initialization operations just before looping over the elements they can do so by implementing these operations in this function. Also, the derived classes can access the parameters passed to the reset function by implementing this function.

Implements AMP::Operator::LinearFEOperator.

◆ preElementOperation()

void AMP::Operator::DiffusionLinearFEOperator::preElementOperation ( const AMP::Mesh::MeshElement )
overridevirtual

This function will be called once for each element, just before performing the element operation. Ideally, the element operation should not deal with global mesh related information such as DOFMap and global vectors and matrices. This function typically extracts the local information from these global objects and passes them to the element operation.

Implements AMP::Operator::LinearFEOperator.

◆ 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()

void AMP::Operator::LinearFEOperator::reset ( std::shared_ptr< const OperatorParameters )
overridevirtualinherited

This function creates the stiffness matrix and uses virtual function calls for setting values into the matrix.

Reimplemented from AMP::Operator::Operator.

◆ 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

◆ 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.

◆ setMatrix()

virtual void AMP::Operator::LinearOperator::setMatrix ( std::shared_ptr< AMP::LinearAlgebra::Matrix in_mat)
virtualinherited

Copies the shared pointer for the matrix representation of this linear operator.

Parameters
[in]in_matThe matrix representation of this linear operator.

Reimplemented in AMP::Operator::IdentityOperator.

Referenced by AMP::Solver::AMG::coarse_operator< Config >::coarse_operator(), and AMP::Operator::EpetraMatrixOperator::EpetraMatrixOperator().

◆ setMemoryAndBackendParameters()

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

◆ setVariables()

virtual void AMP::Operator::LinearOperator::setVariables ( std::shared_ptr< AMP::LinearAlgebra::Variable in,
std::shared_ptr< AMP::LinearAlgebra::Variable out 
)
inlinevirtualinherited

◆ 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::LinearFEOperator::type ( ) const
inlineoverridevirtualinherited

Return the name of the operator.

Implements AMP::Operator::Operator.

Reimplemented in AMP::Operator::MassLinearFEOperator.

Definition at line 38 of file LinearFEOperator.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_constantVecs

std::set<std::string> AMP::Operator::DiffusionLinearFEOperator::d_constantVecs
protected

Definition at line 38 of file DiffusionLinearFEOperator.h.

◆ d_currElemPtr

libMesh::Elem* AMP::Operator::LinearFEOperator::d_currElemPtr
protectedinherited

Definition at line 88 of file LinearFEOperator.h.

◆ d_currNodes

AMP::Mesh::MeshElementVectorPtr AMP::Operator::LinearFEOperator::d_currNodes
protectedinherited

Definition at line 86 of file LinearFEOperator.h.

◆ d_diffLinElem

std::shared_ptr<DiffusionLinearElement> AMP::Operator::DiffusionLinearFEOperator::d_diffLinElem
protected

Definition at line 43 of file DiffusionLinearFEOperator.h.

◆ d_elementStiffnessMatrix

std::vector<std::vector<double> > AMP::Operator::DiffusionLinearFEOperator::d_elementStiffnessMatrix
protected

Definition at line 41 of file DiffusionLinearFEOperator.h.

◆ d_elemOp

std::shared_ptr<ElementOperation> AMP::Operator::LinearFEOperator::d_elemOp
protectedinherited

Definition at line 90 of file LinearFEOperator.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_inDofMap

std::shared_ptr<AMP::Discretization::DOFManager> AMP::Operator::LinearFEOperator::d_inDofMap
protectedinherited

Definition at line 91 of file LinearFEOperator.h.

◆ d_inputVariable

std::shared_ptr<AMP::LinearAlgebra::Variable> AMP::Operator::LinearOperator::d_inputVariable
protectedinherited

◆ d_inputVecs

std::map<std::string, std::shared_ptr<const AMP::LinearAlgebra::Vector> > AMP::Operator::DiffusionLinearFEOperator::d_inputVecs
protected

Definition at line 39 of file DiffusionLinearFEOperator.h.

◆ d_iObject_id

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

Definition at line 189 of file Operator.h.

◆ d_matrix

std::shared_ptr<AMP::LinearAlgebra::Matrix> AMP::Operator::LinearOperator::d_matrix
protectedinherited

Definition at line 92 of file LinearOperator.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_outDofMap

std::shared_ptr<AMP::Discretization::DOFManager> AMP::Operator::LinearFEOperator::d_outDofMap
protectedinherited

Definition at line 92 of file LinearFEOperator.h.

◆ d_outputVariable

std::shared_ptr<AMP::LinearAlgebra::Variable> AMP::Operator::LinearOperator::d_outputVariable
protectedinherited

◆ d_transportModel

std::shared_ptr<DiffusionTransportModel> AMP::Operator::DiffusionLinearFEOperator::d_transportModel
protected

Definition at line 45 of file DiffusionLinearFEOperator.h.


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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