Additive Macro-wise Matrix-based Vanka preconditioner/smoother. More...

#include <voxel_amavanka.hpp>

Inheritance diagram for FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >:

Public Types
typedef Solver::AmaVanka< Matrix_, Filter_ >	BaseClass
	our base-class More...

typedef Matrix_::DataType	DataType
	our data type More...

typedef Matrix_::IndexType	IndexType
	our index type More...

typedef Matrix_::VectorTypeL	VectorType
	our vector type More...

Public Member Functions
template<typename ColoringType_ >
	VoxelAmaVanka (const Matrix_ &matrix, const Filter_ &filter, const ColoringType_ &coloring, const DataType omega=DataType(1), const Index num_steps=Index(1))
	Constructor. More...

	VoxelAmaVanka (const VoxelAmaVanka &)=delete

	VoxelAmaVanka (VoxelAmaVanka &&) noexcept=delete

virtual Status	apply (VectorType &vec_x, const VectorType &vec_b) override
	applies the preconditioner More...

std::size_t	bytes () const
	Returns the total number of bytes currently allocated in this object. More...

void	clear_macro_dofs ()
	Clears the macro dofs graphs. More...

bool	compare (const AmaVanka *other) const

std::size_t	data_size () const
	Returns the total data size used by the AmaVanka smoother. More...

virtual void	done ()
	Finalization method. More...

virtual void	done_numeric ()
	Numeric finalization method. More...

virtual void	done_symbolic () override
	Frees symbolic values and device pointers. More...

template<typename ColoringType_ >
void	fill_color (const ColoringType_ &color, int hint=-1)
	Fills the coloring data. More...

virtual void	init ()
	Initialization method. More...

virtual void	init_numeric () override
	Performs numeric factorization. More...

virtual void	init_symbolic () override
	Initializes symbolic values and device pointers. More...

virtual String	name () const override
	Returns the name of the solver. More...

VoxelAmaVanka &	operator= (const VoxelAmaVanka &)=delete

VoxelAmaVanka &	operator= (VoxelAmaVanka &&) noexcept=delete

void	push_macro_dofs (Adjacency::Graph &&dofs)
	Pushes the dofs-at-macro graph of the next block. More...

void	reset_timings ()
	Resets the internal stop watches for time measurement. More...

void	set_num_steps (Index num_steps)
	Sets the number of smoothing steps. More...

void	set_omega (DataType omega)
	Sets the damping parameter omega. More...

void	set_skip_singular (bool skip_sing)
	Sets whether singular macros are to be skipped. More...

double	time_apply () const
	Returns the total accumulated time for the solver application. More...

double	time_init_numeric () const
	Returns the total accumulated time for numeric initialization. More...

double	time_init_symbolic () const
	Returns the total accumulated time for symbolic initialization. More...

Protected Types
typedef Intern::CSRTupleMatrixWrapper< DataType, IndexType, Intern::AmaVankaMatrixHelper< Matrix_ >::num_blocks >	MatrixWrapper
	our matrix data wrapper More...

typedef Intern::AmaVankaMatrixHelper< Matrix_ >::VankaMatrix	VankaMatrixType
	the type of our Vanka matrix More...

typedef Intern::CSRTupleMatrixWrapper< DataType, IndexType, Intern::AmaVankaMatrixHelper< VankaMatrixType >::num_blocks >	VankaWrapper
	our vanka data wrapper More...

Protected Member Functions
void	_alloc_device ()
	Allocates device pointers, if required. More...

void	_alloc_max_degrees ()
	Calculate the max degree of our graphs. More...

void	_free_device ()
	Frees device pointers. More...

void	_init_numeric_cuda (const MatrixWrapper &mat_wrap, VankaWrapper &vanka_wrap, Index num_macros, Index stride, DataType eps)
	Calls cuda numeric kernel. More...

void	_init_numeric_generic (const MatrixWrapper &mat_wrap, VankaWrapper &vanka_wrap, Index num_macros, Index stride, DataType eps)
	Calls generic numeric kernel. More...

Protected Attributes
bool	_allocate_device = false
	flag whether we should allocate additional device pointer More...

bool	_auto_macros
	deduct macro dofs automatically? More...

Adjacency::ColoringDataHandler	_coloring_data
	coloring More...

std::vector< Index * >	_d_dof_macros

std::vector< Index * >	_d_macro_dofs
	vector of graph arrays More...

int *	_d_macro_mask
	array of macro mask More...

std::vector< Adjacency::Graph >	_dof_macros

const Filter_ &	_filter
	the system filter More...

std::vector< Adjacency::Graph >	_macro_dofs
	the DOF-macro graphs More...

std::vector< int >	_macro_mask
	the macro mask More...

const Matrix_ &	_matrix
	the system matrix More...

std::vector< Index >	_max_degree_dofs
	size data More...

std::vector< Index >	_max_degree_macros

Index	_num_steps
	number of steps More...

int	_num_threads
	number of threads for numeric factorization More...

DataType	_omega
	damping parameter More...

bool	_skip_singular
	skip singular macros? More...

VankaMatrixType	_vanka
	the Vanka preconditioner matrix More...

VectorType	_vec_c
	temporary vectors More...

VectorType	_vec_d

StopWatch	watch_apply

StopWatch	watch_init_numeric

StopWatch	watch_init_symbolic

Detailed Description

template<typename Matrix_, typename Filter_, FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>
class FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >

Additive Macro-wise Matrix-based Vanka preconditioner/smoother.

Template Parameters

Matrix_	The MatrixType of the system matrix.
Filter_	The FilterType to be used.
pol_threading_	The threading policy to be used. Defaults to batched assembly.
macro_type_	The macro policy to be used. Defaults to uniform macros.

This class implements an additive macro-wise Vanka smoother, which stores its pre-computed operator as a sparse matrix, so that each application of the Vanka smoother consists of only one sparse matrix-vector multiplication.

This class is based on the standard Amavanka smoother and differs in one major point: The backend of the numeric assembly of the underlying vanka matrix can be chosen at runtime by the PreferredBackend static variable and supports (for now) a, on OpenMP based, threadparallel generic assembly and a CUDA based device assembly.

This class supports all matrix-types and macro distributions that the AmaVanka baseclass does. For specific information of the AmaVanka solver refer to the baseclass documentation.

Attention: Due to the threadparallel nature of the assembly, this class requires a valid macro coloring to be added either to the constructor or added by the fill_color() method before the symbolic initialization is started.

Author: Maximilian Esser

Definition at line 303 of file voxel_amavanka.hpp.

Member Typedef Documentation

◆ BaseClass

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Solver::AmaVanka<Matrix_, Filter_> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::BaseClass

our base-class

Definition at line 308 of file voxel_amavanka.hpp.

◆ DataType

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Matrix_::DataType FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::DataType

our data type

Definition at line 311 of file voxel_amavanka.hpp.

◆ IndexType

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Matrix_::IndexType FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::IndexType

our index type

Definition at line 313 of file voxel_amavanka.hpp.

◆ MatrixWrapper

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Intern::CSRTupleMatrixWrapper<DataType, IndexType, Intern::AmaVankaMatrixHelper<Matrix_>::num_blocks> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::MatrixWrapper

protected

our matrix data wrapper

Definition at line 321 of file voxel_amavanka.hpp.

◆ VankaMatrixType

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Intern::AmaVankaMatrixHelper<Matrix_>::VankaMatrix FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VankaMatrixType

protected

the type of our Vanka matrix

Definition at line 319 of file voxel_amavanka.hpp.

◆ VankaWrapper

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Intern::CSRTupleMatrixWrapper<DataType, IndexType, Intern::AmaVankaMatrixHelper<VankaMatrixType>::num_blocks> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VankaWrapper

protected

our vanka data wrapper

Definition at line 323 of file voxel_amavanka.hpp.

◆ VectorType

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

typedef Matrix_::VectorTypeL FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VectorType

our vector type

Definition at line 315 of file voxel_amavanka.hpp.

Constructor & Destructor Documentation

◆ VoxelAmaVanka()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

template<typename ColoringType_ >

FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VoxelAmaVanka	(	const Matrix_ &	matrix,
		const Filter_ &	filter,
		const ColoringType_ &	coloring,
		const DataType	omega = `DataType(1)`,
		const Index	num_steps = `Index(1)`
	)

inlineexplicit

Constructor.

Template Parameters

ColoringType_ The type of the coloring array, should either be a vector of ints or a Coloring object.

Parameters

[in]	matrix	The saddle-point system matrix.
[in]	filter	The system filter.
[in]	coloring	The coloring of the macros to be added. This should be used, if automatic marco deduction is used.
[in]	omega	The damping parameter.
[in]	num_steps	The number of smoothing steps to be performed.

Definition at line 515 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_allocate_device, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_coloring_data, and FEAT::Adjacency::ColoringDataHandler::fill_color().

Member Function Documentation

◆ _alloc_device()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device ( )

inlineprotected

Allocates device pointers, if required.

Definition at line 351 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_allocate_device, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_dofs, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_mask, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_mask, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_skip_singular, and XASSERTM.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_symbolic().

◆ _alloc_max_degrees()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_max_degrees ( )

inlineprotected

Calculate the max degree of our graphs.

Definition at line 336 of file voxel_amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_dofs.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_symbolic().

◆ _free_device()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_free_device ( )

inlineprotected

Frees device pointers.

Definition at line 413 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_dofs, and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_mask.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::done_symbolic().

◆ _init_numeric_cuda()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda	(	const MatrixWrapper &	mat_wrap,
		VankaWrapper &	vanka_wrap,
		Index	num_macros,
		Index	stride,
		DataType	eps
	)

inlineprotected

Calls cuda numeric kernel.

Parameters

[in]	mat_wrap	Wrapper of the system matrix.
	[in/out]	vanka_wrap Wrapper of the vanka matrix.
[in]	num_macros	Number of macros. Ignored.
[in]	stride	The local matrix stride.
[in]	eps	Tolerance for singular matrix identifaication.

Definition at line 472 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_allocate_device, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_coloring_data, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_dofs, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_mask, FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_omega, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_skip_singular, and XASSERTM.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric().

◆ _init_numeric_generic()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic	(	const MatrixWrapper &	mat_wrap,
		VankaWrapper &	vanka_wrap,
		Index	num_macros,
		Index	stride,
		DataType	eps
	)

inlineprotected

Calls generic numeric kernel.

Parameters

[in]	mat_wrap	Wrapper of the system matrix.
	[in/out]	vanka_wrap Wrapper of the vanka matrix.
[in]	num_macros	Number of macros. Ignored.
[in]	stride	The local matrix stride.
[in]	eps	Tolerance for singular matrix identifaication.

Definition at line 446 of file voxel_amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_mask, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_omega, and FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_skip_singular.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric().

◆ apply()

template<typename Matrix_ , typename Filter_ >

virtual Status FEAT::Solver::AmaVanka< Matrix_, Filter_ >::apply	(	VectorType &	vec_x,
		const VectorType &	vec_b
	)

inlineoverridevirtualinherited

applies the preconditioner

Implements FEAT::Solver::SolverBase< Matrix_::VectorTypeL >.

Definition at line 444 of file amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_num_steps, FEAT::StopWatch::start(), FEAT::StopWatch::stop(), and FEAT::Solver::success.

◆ bytes()

template<typename Matrix_ , typename Filter_ >

std::size_t FEAT::Solver::AmaVanka< Matrix_, Filter_ >::bytes ( ) const

inlineinherited

Returns the total number of bytes currently allocated in this object.

Definition at line 212 of file amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vanka, and FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vec_c.

◆ clear_macro_dofs()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::clear_macro_dofs ( )

inlineinherited

Clears the macro dofs graphs.

Definition at line 143 of file amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_auto_macros.

◆ compare()

template<typename Matrix_ , typename Filter_ >

bool FEAT::Solver::AmaVanka< Matrix_, Filter_ >::compare ( const AmaVanka< Matrix_, Filter_ > * other ) const

inlineinherited

Definition at line 472 of file amavanka.hpp.

◆ data_size()

template<typename Matrix_ , typename Filter_ >

std::size_t FEAT::Solver::AmaVanka< Matrix_, Filter_ >::data_size ( ) const

inlineinherited

Returns the total data size used by the AmaVanka smoother.

Returns: The total data size, i.e. the total number of floating point values used in the factorization.

Definition at line 230 of file amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vanka.

◆ done()

virtual void FEAT::Solver::SolverBase< Matrix_::VectorTypeL >::done ( )

inlinevirtualinherited

Finalization method.

This function performs both the symbolic and numeric finalization, i.e. it simply performs

this->done_numeric();
this->done_symbolic();

Definition at line 283 of file base.hpp.

◆ done_numeric()

virtual void FEAT::Solver::SolverBase< Matrix_::VectorTypeL >::done_numeric ( )

inlinevirtualinherited

Numeric finalization method.

This method is called to release any data allocated in the numeric initialization step.

Reimplemented in FEAT::Solver::GenericUmfpack< Matrix_ >.

Definition at line 246 of file base.hpp.

◆ done_symbolic()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

virtual void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::done_symbolic ( )

inlineoverridevirtual

Frees symbolic values and device pointers.

Reimplemented from FEAT::Solver::AmaVanka< Matrix_, Filter_ >.

Definition at line 625 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_free_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_dofs, and FEAT::Solver::AmaVanka< Matrix_, Filter_ >::done_symbolic().

◆ fill_color()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

template<typename ColoringType_ >

void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::fill_color	(	const ColoringType_ &	color,
		int	hint = `-1`
	)

inline

Fills the coloring data.

Template Parameters

ColoringType_ Arraytype mapping index to a color

Parameters

[in]	color	The coloring data. Has to fit the macro dofs, i.e. call after pushing all macro dofs.
[in]	hint	Optionally give hint on the number of colors.

Definition at line 600 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_coloring_data, FEAT::Adjacency::ColoringDataHandler::fill_color(), and XASSERTM.

◆ init()

virtual void FEAT::Solver::SolverBase< Matrix_::VectorTypeL >::init ( )

inlinevirtualinherited

Initialization method.

This function performs both the symbolic and numeric initialization, i.e. it simply performs

this->init_symbolic();
this->init_numeric();

Definition at line 268 of file base.hpp.

◆ init_numeric()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

virtual void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric ( )

inlineoverridevirtual

Performs numeric factorization.

Reimplemented from FEAT::Solver::AmaVanka< Matrix_, Filter_ >.

Definition at line 636 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic(), FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_matrix, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vanka, FEAT::Solver::SolverBase< Vector_ >::init_numeric(), FEAT::StopWatch::start(), and FEAT::StopWatch::stop().

◆ init_symbolic()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

virtual void FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_symbolic ( )

inlineoverridevirtual

Initializes symbolic values and device pointers.

Reimplemented from FEAT::Solver::AmaVanka< Matrix_, Filter_ >.

Definition at line 614 of file voxel_amavanka.hpp.

References FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_max_degrees(), FEAT::Solver::AmaVanka< Matrix_, Filter_ >::init_symbolic(), FEAT::StopWatch::start(), and FEAT::StopWatch::stop().

◆ name()

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

virtual String FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::name ( ) const

inlineoverridevirtual

Returns the name of the solver.

Reimplemented from FEAT::Solver::AmaVanka< Matrix_, Filter_ >.

Definition at line 608 of file voxel_amavanka.hpp.

◆ push_macro_dofs()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::push_macro_dofs ( Adjacency::Graph && dofs )

inlineinherited

Pushes the dofs-at-macro graph of the next block.

Parameters

[in] dofs The dofs-at-macro graph of the block.

Definition at line 155 of file amavanka.hpp.

References FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_auto_macros, FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs, and XABORTM.

◆ reset_timings()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::reset_timings ( )

inlineinherited

Resets the internal stop watches for time measurement.

Definition at line 238 of file amavanka.hpp.

References FEAT::StopWatch::reset().

◆ set_num_steps()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::set_num_steps ( Index num_steps )

inlineinherited

Sets the number of smoothing steps.

Parameters

[in] num_steps The number of smoothing steps to be performed.

Definition at line 180 of file amavanka.hpp.

References XASSERT.

◆ set_omega()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::set_omega ( DataType omega )

inlineinherited

Sets the damping parameter omega.

Parameters

[in] omega The damping parameter.

Definition at line 192 of file amavanka.hpp.

References XASSERT.

◆ set_skip_singular()

template<typename Matrix_ , typename Filter_ >

void FEAT::Solver::AmaVanka< Matrix_, Filter_ >::set_skip_singular ( bool skip_sing )

inlineinherited

Sets whether singular macros are to be skipped.

Parameters

[in] skip_sing Specifies whether singular macros are to be skipped.

Definition at line 204 of file amavanka.hpp.

◆ time_apply()

template<typename Matrix_ , typename Filter_ >

double FEAT::Solver::AmaVanka< Matrix_, Filter_ >::time_apply ( ) const

inlineinherited

Returns the total accumulated time for the solver application.

Definition at line 264 of file amavanka.hpp.

References FEAT::StopWatch::elapsed().

◆ time_init_numeric()

template<typename Matrix_ , typename Filter_ >

double FEAT::Solver::AmaVanka< Matrix_, Filter_ >::time_init_numeric ( ) const

inlineinherited

Returns the total accumulated time for numeric initialization.

Definition at line 256 of file amavanka.hpp.

References FEAT::StopWatch::elapsed().

◆ time_init_symbolic()

template<typename Matrix_ , typename Filter_ >

double FEAT::Solver::AmaVanka< Matrix_, Filter_ >::time_init_symbolic ( ) const

inlineinherited

Returns the total accumulated time for symbolic initialization.

Definition at line 248 of file amavanka.hpp.

References FEAT::StopWatch::elapsed().

Member Data Documentation

◆ _allocate_device

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

bool FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_allocate_device = false

protected

flag whether we should allocate additional device pointer

Definition at line 333 of file voxel_amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VoxelAmaVanka(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda().

◆ _auto_macros

template<typename Matrix_ , typename Filter_ >

bool FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_auto_macros

protectedinherited

deduct macro dofs automatically?

Definition at line 88 of file amavanka.hpp.

Referenced by FEAT::Solver::AmaVanka< Matrix_, Filter_ >::clear_macro_dofs(), and FEAT::Solver::AmaVanka< Matrix_, Filter_ >::push_macro_dofs().

◆ _coloring_data

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

Adjacency::ColoringDataHandler FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_coloring_data

protected

coloring

Definition at line 325 of file voxel_amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::VoxelAmaVanka(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::fill_color().

◆ _d_dof_macros

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

std::vector<Index*> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_dof_macros

protected

Definition at line 327 of file voxel_amavanka.hpp.

◆ _d_macro_dofs

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

std::vector<Index*> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_dofs

protected

vector of graph arrays

Definition at line 327 of file voxel_amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_free_device(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda().

◆ _d_macro_mask

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

int* FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_d_macro_mask

protected

array of macro mask

Definition at line 331 of file voxel_amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_free_device(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda().

◆ _dof_macros

template<typename Matrix_ , typename Filter_ >

std::vector<Adjacency::Graph> FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_dof_macros

protectedinherited

Definition at line 92 of file amavanka.hpp.

◆ _filter

template<typename Matrix_ , typename Filter_ >

const Filter_& FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_filter

protectedinherited

the system filter

Definition at line 84 of file amavanka.hpp.

◆ _macro_dofs

template<typename Matrix_ , typename Filter_ >

std::vector<Adjacency::Graph> FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_dofs

protectedinherited

the DOF-macro graphs

Definition at line 92 of file amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_max_degrees(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic(), FEAT::Solver::AmaVanka< Matrix_, Filter_ >::bytes(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric(), FEAT::Solver::AmaVanka< Matrix_, Filter_ >::init_symbolic(), and FEAT::Solver::AmaVanka< Matrix_, Filter_ >::push_macro_dofs().

◆ _macro_mask

template<typename Matrix_ , typename Filter_ >

std::vector<int> FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_macro_mask

protectedinherited

the macro mask

Definition at line 94 of file amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic().

◆ _matrix

template<typename Matrix_ , typename Filter_ >

const Matrix_& FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_matrix

protectedinherited

the system matrix

Definition at line 82 of file amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric().

◆ _max_degree_dofs

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

std::vector<Index> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_dofs

protected

size data

Definition at line 329 of file voxel_amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_max_degrees(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::done_symbolic().

◆ _max_degree_macros

template<typename Matrix_ , typename Filter_ , FEAT::Intern::VankaAssemblyPolicy pol_threading_ = FEAT::Intern::VankaAssemblyPolicy::batchedAssembly, FEAT::Intern::VankaMacroPolicy macro_type_ = FEAT::Intern::VankaMacroPolicy::uniformMacros>

std::vector<Index> FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_max_degree_macros

protected

Definition at line 329 of file voxel_amavanka.hpp.

◆ _num_steps

template<typename Matrix_ , typename Filter_ >

Index FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_num_steps

protectedinherited

number of steps

Definition at line 96 of file amavanka.hpp.

Referenced by FEAT::Solver::AmaVanka< Matrix_, Filter_ >::apply().

◆ _num_threads

template<typename Matrix_ , typename Filter_ >

int FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_num_threads

protectedinherited

number of threads for numeric factorization

Definition at line 110 of file amavanka.hpp.

◆ _omega

template<typename Matrix_ , typename Filter_ >

DataType FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_omega

protectedinherited

damping parameter

Definition at line 98 of file amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic().

◆ _skip_singular

template<typename Matrix_ , typename Filter_ >

bool FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_skip_singular

protectedinherited

skip singular macros?

Definition at line 90 of file amavanka.hpp.

Referenced by FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_alloc_device(), FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_cuda(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::_init_numeric_generic().

◆ _vanka

template<typename Matrix_ , typename Filter_ >

VankaMatrixType FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vanka

protectedinherited

the Vanka preconditioner matrix

Definition at line 86 of file amavanka.hpp.

Referenced by FEAT::Solver::AmaVanka< Matrix_, Filter_ >::bytes(), FEAT::Solver::AmaVanka< Matrix_, Filter_ >::data_size(), and FEAT::Solver::VoxelAmaVanka< Matrix_, Filter_, pol_threading_, macro_type_ >::init_numeric().

◆ _vec_c

template<typename Matrix_ , typename Filter_ >

VectorType FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vec_c

protectedinherited

temporary vectors

Definition at line 100 of file amavanka.hpp.

Referenced by FEAT::Solver::AmaVanka< Matrix_, Filter_ >::bytes().

◆ _vec_d

template<typename Matrix_ , typename Filter_ >

VectorType FEAT::Solver::AmaVanka< Matrix_, Filter_ >::_vec_d

protectedinherited

Definition at line 100 of file amavanka.hpp.

◆ watch_apply

template<typename Matrix_ , typename Filter_ >

StopWatch FEAT::Solver::AmaVanka< Matrix_, Filter_ >::watch_apply

protectedinherited

Definition at line 107 of file amavanka.hpp.

◆ watch_init_numeric

template<typename Matrix_ , typename Filter_ >

StopWatch FEAT::Solver::AmaVanka< Matrix_, Filter_ >::watch_init_numeric

protectedinherited

Definition at line 105 of file amavanka.hpp.

◆ watch_init_symbolic

template<typename Matrix_ , typename Filter_ >

StopWatch FEAT::Solver::AmaVanka< Matrix_, Filter_ >::watch_init_symbolic

protectedinherited

Definition at line 103 of file amavanka.hpp.

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

kernel/solver/voxel_amavanka.hpp

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ BaseClass

◆ DataType

◆ IndexType

◆ MatrixWrapper

◆ VankaMatrixType

◆ VankaWrapper

◆ VectorType

Constructor & Destructor Documentation

◆ VoxelAmaVanka()

Member Function Documentation

◆ _alloc_device()

◆ _alloc_max_degrees()

◆ _free_device()

◆ _init_numeric_cuda()

◆ _init_numeric_generic()

◆ apply()

◆ bytes()

◆ clear_macro_dofs()

◆ compare()

◆ data_size()

◆ done()

◆ done_numeric()

◆ done_symbolic()

◆ fill_color()

◆ init()

◆ init_numeric()

◆ init_symbolic()

◆ name()

◆ push_macro_dofs()

◆ reset_timings()

◆ set_num_steps()

◆ set_omega()

◆ set_skip_singular()

◆ time_apply()

◆ time_init_numeric()

◆ time_init_symbolic()

Member Data Documentation

◆ _allocate_device

◆ _auto_macros

◆ _coloring_data

◆ _d_dof_macros

◆ _d_macro_dofs

◆ _d_macro_mask

◆ _dof_macros

◆ _filter

◆ _macro_dofs

◆ _macro_mask

◆ _matrix

◆ _max_degree_dofs

◆ _max_degree_macros

◆ _num_steps

◆ _num_threads

◆ _omega

◆ _skip_singular

◆ _vanka

◆ _vec_c

◆ _vec_d

◆ watch_apply

◆ watch_init_numeric

◆ watch_init_symbolic