Classes
struct	amg_id_influence
	Helper struct for sequential classical one-pass coarsening. More...

Functions
template<typename NumericT >
void	amg_influence_trivial (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Routine for taking all connections in the matrix as strong. More...

template<typename NumericT >
void	amg_influence_advanced (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Routine for extracting strongly connected points considering a user-provided threshold value. More...

template<typename NumericT >
void	amg_influence (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Dispatcher for influence processing. More...

void	enumerate_coarse_points (viennacl::linalg::detail::amg::amg_level_context &amg_context)
	Assign IDs to coarse points. More...

bool	operator> (amg_id_influence const &a, amg_id_influence const &b)

template<typename NumericT >
void	amg_coarse_classic_onepass (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Classical (RS) one-pass coarsening. Single-Threaded! (VIENNACL_AMG_COARSE_CLASSIC_ONEPASS) More...

template<typename NumericT >
void	amg_coarse_ag_stage1_sequential (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	AG (aggregation based) coarsening, single-threaded version of stage 1. More...

template<typename NumericT >
void	amg_coarse_ag_stage1_mis2 (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	AG (aggregation based) coarsening, multi-threaded version of stage 1 using parallel maximum independent sets. More...

template<typename NumericT >
void	amg_coarse_ag (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	AG (aggregation based) coarsening. Partially single-threaded version (VIENNACL_AMG_COARSE_AG) More...

template<typename MatrixT >
void	amg_coarse (MatrixT &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Entry point and dispatcher for coarsening procedures. More...

template<typename NumericT >
void	amg_interpol_direct (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Direct interpolation. Multi-threaded! (VIENNACL_AMG_INTERPOL_DIRECT) More...

template<typename NumericT >
void	amg_interpol_ag (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	AG (aggregation based) interpolation. Multi-Threaded! (VIENNACL_INTERPOL_AG) More...

template<typename NumericT >
void	amg_interpol_sa (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Smoothed aggregation interpolation. Multi-Threaded! (VIENNACL_INTERPOL_SA) More...

template<typename MatrixT >
void	amg_interpol (MatrixT const &A, MatrixT &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
	Dispatcher for building the interpolation matrix. More...

template<typename NumericT >
void	amg_transpose (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &B)
	Computes B = trans(A). More...

template<typename NumericT , unsigned int AlignmentV>
void	assign_to_dense (viennacl::compressed_matrix< NumericT, AlignmentV > const &A, viennacl::matrix_base< NumericT > &B)

template<typename NumericT >
void	smooth_jacobi (unsigned int iterations, compressed_matrix< NumericT > const &A, vector< NumericT > &x, vector< NumericT > &x_backup, vector< NumericT > const &rhs_smooth, NumericT weight)
	Damped Jacobi Smoother (CUDA version) More...

Function Documentation

template<typename MatrixT >

void viennacl::linalg::host_based::amg::amg_coarse	(	MatrixT &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Entry point and dispatcher for coarsening procedures.

Parameters

A	Operator matrix for the respective level
amg_context	AMG datastructure object for the grid hierarchy
tag	AMG preconditioner tag

Definition at line 697 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_coarse_ag	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

AG (aggregation based) coarsening. Partially single-threaded version (VIENNACL_AMG_COARSE_AG)

Parameters

A	Operator matrix for the respective level
amg_context	AMG datastructure object for the grid hierarchy
tag	AMG preconditioner tag

Definition at line 604 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_coarse_ag_stage1_mis2	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

AG (aggregation based) coarsening, multi-threaded version of stage 1 using parallel maximum independent sets.

Parameters

A	Operator matrix for the respective level
amg_context	AMG datastructure object for the grid hierarchy
tag	AMG preconditioner tag

Definition at line 418 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_coarse_ag_stage1_sequential	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

AG (aggregation based) coarsening, single-threaded version of stage 1.

Parameters

A	Operator matrix for the respective level
amg_context	AMG datastructure object for the grid hierarchy
tag	AMG preconditioner tag

Definition at line 367 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_coarse_classic_onepass	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Classical (RS) one-pass coarsening. Single-Threaded! (VIENNACL_AMG_COARSE_CLASSIC_ONEPASS)

Parameters

A	Operator matrix for the respective level
amg_context	AMG datastructure object for the grid hierarchy
tag	AMG preconditioner tag

Definition at line 284 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_influence	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Dispatcher for influence processing.

Definition at line 224 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_influence_advanced	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Routine for extracting strongly connected points considering a user-provided threshold value.

Definition at line 84 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_influence_trivial	(	compressed_matrix< NumericT > const &	A,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Routine for taking all connections in the matrix as strong.

Definition at line 50 of file amg_operations.hpp.

template<typename MatrixT >

void viennacl::linalg::host_based::amg::amg_interpol	(	MatrixT const &	A,
		MatrixT &	P,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Dispatcher for building the interpolation matrix.

Parameters

A	Operator matrix
P	Prolongation matrix
amg_context	AMG hierarchy datastructures
tag	AMG configuration tag

Definition at line 952 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_interpol_ag	(	compressed_matrix< NumericT > const &	A,
		compressed_matrix< NumericT > &	P,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

AG (aggregation based) interpolation. Multi-Threaded! (VIENNACL_INTERPOL_AG)

Parameters

A	Operator matrix
P	Prolongation matrix
amg_context	AMG hierarchy datastructures
tag	AMG configuration tag

Definition at line 841 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_interpol_direct	(	compressed_matrix< NumericT > const &	A,
		compressed_matrix< NumericT > &	P,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Direct interpolation. Multi-threaded! (VIENNACL_AMG_INTERPOL_DIRECT)

Parameters

A	Operator matrix
P	Prolongation matrix
amg_context	AMG hierarchy datastructures
tag	AMG preconditioner tag

Definition at line 724 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_interpol_sa	(	compressed_matrix< NumericT > const &	A,
		compressed_matrix< NumericT > &	P,
		viennacl::linalg::detail::amg::amg_level_context &	amg_context,
		viennacl::linalg::amg_tag &	tag
	)

Smoothed aggregation interpolation. Multi-Threaded! (VIENNACL_INTERPOL_SA)

Parameters

A	Operator matrix
P	Prolongation matrix
amg_context	AMG hierarchy datastructures
tag	AMG configuration tag

Definition at line 880 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::amg_transpose	(	compressed_matrix< NumericT > const &	A,
		compressed_matrix< NumericT > &	B
	)

Computes B = trans(A).

To be replaced by native functionality in ViennaCL.

Definition at line 972 of file amg_operations.hpp.

template<typename NumericT , unsigned int AlignmentV>

void viennacl::linalg::host_based::amg::assign_to_dense	(	viennacl::compressed_matrix< NumericT, AlignmentV > const &	A,
		viennacl::matrix_base< NumericT > &	B
	)

Assign sparse matrix A to dense matrix B

Definition at line 1042 of file amg_operations.hpp.

void viennacl::linalg::host_based::amg::enumerate_coarse_points ( viennacl::linalg::detail::amg::amg_level_context & amg_context )

inline

Assign IDs to coarse points.

Definition at line 235 of file amg_operations.hpp.

bool viennacl::linalg::host_based::amg::operator>	(	amg_id_influence const &	a,
		amg_id_influence const &	b
	)

inline

Definition at line 268 of file amg_operations.hpp.

template<typename NumericT >

void viennacl::linalg::host_based::amg::smooth_jacobi	(	unsigned int	iterations,
		compressed_matrix< NumericT > const &	A,
		vector< NumericT > &	x,
		vector< NumericT > &	x_backup,
		vector< NumericT > const &	rhs_smooth,
		NumericT	weight
	)

Damped Jacobi Smoother (CUDA version)

Parameters

iterations	Number of smoother iterations
A	Operator matrix for the smoothing
x	The vector smoothing is applied to
x_backup	(Different) Vector holding the same values as x
rhs_smooth	The right hand side of the equation for the smoother
weight	Damping factor. 0: No effect of smoother. 1: Undamped Jacobi iteration

Definition at line 1074 of file amg_operations.hpp.

Classes

Functions

Function Documentation