MeltPoolDG::OperatorMatrixFree< dim, number > Class Template Reference

Operator handling matrix-free computations. More...

#include <operator_base.hpp>

Inheritance diagram for MeltPoolDG::OperatorMatrixFree< dim, number >:

Collaboration diagram for MeltPoolDG::OperatorMatrixFree< dim, number >:

Public Types
using	VectorType = dealii::LinearAlgebra::distributed::Vector< number >
using	BlockVectorType = dealii::LinearAlgebra::distributed::BlockVector< number >
using	SparseMatrixType = dealii::TrilinosWrappers::SparseMatrix

Public Member Functions
virtual	~OperatorMatrixFree ()=default
virtual void	create_rhs (VectorType &, const VectorType &) const
	Compute the right-hand side vector.
virtual void	create_rhs (BlockVectorType &, const VectorType &) const
	Compute the right-hand side vector for block vectors dst.
virtual void	create_rhs (VectorType &, const BlockVectorType &) const
	Compute the right-hand side vector for block vectors src.
virtual void	vmult (VectorType &, const VectorType &) const
virtual void	vmult (BlockVectorType &, const BlockVectorType &) const
virtual void	compute_system_matrix_from_matrixfree (dealii::TrilinosWrappers::SparseMatrix &) const
	Compute a sparse matrix using matrix-free techniques.
virtual void	compute_inverse_diagonal_from_matrixfree (VectorType &) const
	Compute the inverse diagonal using matrix-free techniques.
virtual void	compute_inverse_diagonal_from_matrixfree (BlockVectorType &) const
	Compute the inverse diagonal using matrix-free techniques for block vectors.
Public Member Functions inherited from MeltPoolDG::OperatorBase< number >
virtual	~OperatorBase ()=default
void	reset_dof_index (const unsigned int dof_idx_in)
	Set the index for the current degrees of freedom (DoF).
void	reset_time_increment (const number dt)
	Set the time increment for the operator.
virtual void	pre ()
	Prepare for computations (e.g. update ghost values). Can be overridden by derived classes.
virtual void	post ()
	Finalize for computations (e.g. zero out ghost values). Can be overridden by derived classes.
virtual void	reinit ()
	Reinitialize data structures. Can be overridden by derived classes.

Additional Inherited Members
Protected Attributes inherited from MeltPoolDG::OperatorBase< number >
unsigned int	dof_idx = dealii::numbers::invalid_unsigned_int
number	time_increment = numbers::invalid_double
number	time_increment_inv = numbers::invalid_double

Detailed Description

template<int dim, typename number>
class MeltPoolDG::OperatorMatrixFree< dim, number >

Operator handling matrix-free computations.

This class implements methods for performing operations without explicit assembly of matrices.

Member Typedef Documentation

BlockVectorType

template<int dim, typename number >

using MeltPoolDG::OperatorMatrixFree< dim, number >::BlockVectorType = dealii::LinearAlgebra::distributed::BlockVector<number>

SparseMatrixType

template<int dim, typename number >

using MeltPoolDG::OperatorMatrixFree< dim, number >::SparseMatrixType = dealii::TrilinosWrappers::SparseMatrix

VectorType

template<int dim, typename number >

using MeltPoolDG::OperatorMatrixFree< dim, number >::VectorType = dealii::LinearAlgebra::distributed::Vector<number>

Constructor & Destructor Documentation

~OperatorMatrixFree()

template<int dim, typename number >

virtual MeltPoolDG::OperatorMatrixFree< dim, number >::~OperatorMatrixFree ( )

virtualdefault

Member Function Documentation

compute_inverse_diagonal_from_matrixfree() [1/2]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::compute_inverse_diagonal_from_matrixfree ( BlockVectorType &  ) const

inlinevirtual

Compute the inverse diagonal using matrix-free techniques for block vectors.

Reimplemented in MeltPoolDG::LevelSet::NormalVectorOperator< dim, number >.

compute_inverse_diagonal_from_matrixfree() [2/2]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::compute_inverse_diagonal_from_matrixfree ( VectorType &  ) const

inlinevirtual

Compute the inverse diagonal using matrix-free techniques.

Parameters

diag	Vector representing the diagonal.

Reimplemented in MeltPoolDG::Heat::HeatCutOperator< dim, number >, MeltPoolDG::Heat::HeatDiffuseMultiPhaseOperator< dim, number >, MeltPoolDG::LevelSet::AdvectionDiffusionOperator< dim, number >, MeltPoolDG::LevelSet::CurvatureOperator< dim, number >, MeltPoolDG::LevelSet::OlssonOperator< dim, number >, MeltPoolDG::LevelSet::ReinitializationEllipticOperator< dim, number >, MeltPoolDG::RadiativeTransport::PseudoRTEOperator< dim, number >, and MeltPoolDG::RadiativeTransport::RadiativeTransportOperator< dim, number >.

compute_system_matrix_from_matrixfree()

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::compute_system_matrix_from_matrixfree ( dealii::TrilinosWrappers::SparseMatrix &  ) const

inlinevirtual

Compute a sparse matrix using matrix-free techniques.

Parameters

matrix

Sparse matrix to compute.

Reimplemented in MeltPoolDG::Heat::HeatCutOperator< dim, number >, MeltPoolDG::LevelSet::AdvectionDiffusionOperator< dim, number >, MeltPoolDG::LevelSet::CurvatureOperator< dim, number >, MeltPoolDG::LevelSet::NormalVectorOperator< dim, number >, MeltPoolDG::LevelSet::OlssonOperator< dim, number >, MeltPoolDG::LevelSet::ReinitializationEllipticOperator< dim, number >, MeltPoolDG::Heat::HeatDiffuseMultiPhaseOperator< dim, number >, MeltPoolDG::RadiativeTransport::PseudoRTEOperator< dim, number >, and MeltPoolDG::RadiativeTransport::RadiativeTransportOperator< dim, number >.

create_rhs() [1/3]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::create_rhs ( BlockVectorType &  , const VectorType &    ) const

inlinevirtual

Compute the right-hand side vector for block vectors dst.

Reimplemented in MeltPoolDG::LevelSet::NormalVectorOperator< dim, number >.

create_rhs() [2/3]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::create_rhs ( VectorType &  , const BlockVectorType &    ) const

inlinevirtual

Compute the right-hand side vector for block vectors src.

Reimplemented in MeltPoolDG::LevelSet::CurvatureOperator< dim, number >.

create_rhs() [3/3]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::create_rhs ( VectorType &  , const VectorType &    ) const

inlinevirtual

Compute the right-hand side vector.

This function is intended to compute the right-hand side vector (dst). It is currently used in the utility function create_rhs_and_apply_dirichlet_matrixfree().

Parameters

src	Source vector.
dst	Destination vector.

Reimplemented in MeltPoolDG::Heat::HeatDiffuseMultiPhaseOperator< dim, number >, MeltPoolDG::LevelSet::AdvectionDiffusionOperator< dim, number >, MeltPoolDG::RadiativeTransport::PseudoRTEOperator< dim, number >, MeltPoolDG::RadiativeTransport::RadiativeTransportOperator< dim, number >, MeltPoolDG::Heat::HeatCutOperator< dim, number >, MeltPoolDG::LevelSet::OlssonOperator< dim, number >, and MeltPoolDG::LevelSet::ReinitializationEllipticOperator< dim, number >.

vmult() [1/2]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::vmult ( BlockVectorType &  , const BlockVectorType &    ) const

inlinevirtual

Apply the matrix-free operator for block vectors.

Reimplemented in MeltPoolDG::LevelSet::NormalVectorOperator< dim, number >.

vmult() [2/2]

template<int dim, typename number >

virtual void MeltPoolDG::OperatorMatrixFree< dim, number >::vmult ( VectorType &  , const VectorType &    ) const

inlinevirtual

Apply the matrix-free operator to a vector src and store It inside dst. This function is used in the iterative linear solver.

Parameters

src	Source vector.
dst	Destination vector.

Reimplemented in MeltPoolDG::Heat::HeatCutOperator< dim, number >, MeltPoolDG::Heat::HeatDiffuseMultiPhaseOperator< dim, number >, MeltPoolDG::LevelSet::AdvectionDiffusionOperator< dim, number >, MeltPoolDG::LevelSet::CurvatureOperator< dim, number >, MeltPoolDG::LevelSet::OlssonOperator< dim, number >, MeltPoolDG::LevelSet::ReinitializationEllipticOperator< dim, number >, MeltPoolDG::RadiativeTransport::PseudoRTEOperator< dim, number >, and MeltPoolDG::RadiativeTransport::RadiativeTransportOperator< dim, number >.

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

• include/meltpooldg/core/operator_base.hpp