#include <linsys_BDDC.hh>

Inheritance diagram for LinSys_BDDC:

Collaboration diagram for LinSys_BDDC:

Public Member Functions
	LinSys_BDDC (const unsigned numDofsSub, const Distribution *rows_ds, const int matrixTypeInt=0, const int numSubLoc=1, const bool swap_sign=false)

void	load_mesh (const int nDim, const int numNodes, const int numDofs, const std::vector< int > &inet, const std::vector< int > &nnet, const std::vector< int > &nndf, const std::vector< int > &isegn, const std::vector< int > &isngn, const std::vector< int > &isvgvn, const std::vector< double > &xyz, const std::vector< double > &element_permeability, const int meshDim)

void	mat_set_values (int nrow, int rows, int ncol, int cols, double *vals)

void	rhs_set_values (int nrow, int rows, double vals)

void	diagonal_weights_set_value (int global_index, double value)

PetscErrorCode	mat_zero_entries () override

PetscErrorCode	rhs_zero_entries () override

void	finish_assembly ()

void	apply_constrains (double scalar=1.)

int	solve ()

void	set_from_input (const Input::Record in_rec)

double	get_solution_precision ()

	~LinSys_BDDC ()

Public Member Functions inherited from LinSys
	LinSys (const Distribution *rows_ds)

	LinSys (LinSys &other)

unsigned int	size ()

unsigned int	vec_lsize ()

virtual const Mat *	get_matrix ()

virtual const Vec *	get_rhs ()

void	set_matrix_changed ()

void	set_rhs_changed ()

bool	is_matrix_changed ()

bool	is_rhs_changed ()

virtual PetscErrorCode	set_matrix (Mat &matrix, MatStructure str)

virtual PetscErrorCode	set_rhs (Vec &rhs)

const Vec &	get_solution ()

void	set_solution (double *sol_array)

double *	get_solution_array ()

virtual void	start_allocation ()

virtual void	start_add_assembly ()

virtual void	start_insert_assembly ()

void	mat_set_value (int row, int col, double val)

void	rhs_set_value (int row, double val)

void	set_values (int nrow, int rows, int ncol, int cols, PetscScalar mat_vals, PetscScalar rhs_vals)
	Set values in the system matrix and values in the right-hand side vector on corresponding rows. More...

void	set_values (std::vector< int > &row_dofs, std::vector< int > &col_dofs, const arma::mat &matrix, const arma::vec &rhs, const arma::vec &row_solution, const arma::vec &col_solution)

void	add_constraint (int row, double value)

double	get_residual_norm ()

double	get_relative_accuracy ()

virtual double	get_absolute_accuracy ()

void	set_symmetric (bool flag=true)

bool	is_symmetric ()

void	set_positive_definite (bool flag=true)

void	set_negative_definite (bool flag=true)

bool	is_positive_definite ()

bool	is_negative_definite ()

bool	is_new ()

bool	is_preallocated ()

void	set_spd_via_symmetric_general (bool flag=true)

bool	is_spd_via_symmetric_general ()

virtual void	view ()

virtual	~LinSys ()

Static Public Attributes
static Input::Type::Record	input_type

Static Public Attributes inherited from LinSys
static Input::Type::AbstractRecord	input_type

Private Types
typedef la::BddcmlWrapper	Bddcml_

Private Attributes
int	max_nondecr_it_
	parameters expected from input file: More...

int	number_of_levels_
	number of levels in the multilevel method More...

bool	use_adaptive_bddc_
	should adaptive BDDC be used? More...

int	bddcml_verbosity_level_

const bool	swap_sign_
	swap sign of matrix and rhs entries, e.g. to make the matrix SPD More...

std::vector< int >	isngn_
	indices of subdomain nodes in global numbering More...

std::vector< double >	locSolution_
	subdomain solution More...

Vec	locSolVec_
	local solution PETSc vector - sequential More...

VecScatter	VSpetscToSubScatter_
	scatter from solution_ to locSolVec_ More...

Bddcml_ *	bddcml_
	BDDCML wrapper. More...

Additional Inherited Members
Public Types inherited from LinSys
enum	SetValuesMode { INSERT =INSERT_VALUES, ADD =ADD_VALUES, ALLOCATE, DONE, NONE }

Protected Types inherited from LinSys
typedef std::pair< unsigned, double >	Constraint_

typedef std::vector< Constraint_ >	ConstraintVec_

Protected Attributes inherited from LinSys
double	r_tol_

double	a_tol_

int	max_it_

MPI_Comm	comm_

SetValuesMode	status_
	Set value status of the linear system. More...

const unsigned	lsize_
	local number of matrix rows (non-overlapping division of rows) More...

unsigned	size_
	global number of matrix rows, i.e. problem size More...

const Distribution *	rows_ds_
	final distribution of rows of MH matrix More...

bool	symmetric_

bool	positive_definite_

bool	negative_definite_

bool	spd_via_symmetric_general_

bool	matrix_changed_
	true if the matrix was changed since the last solve More...

bool	rhs_changed_
	true if the right hand side was changed since the last solve More...

Vec	solution_
	PETSc vector constructed with vb array. More...

double *	v_solution_
	local solution array pointing into Vec solution_ More...

bool	own_solution_
	Indicates if the solution array has been allocated by this class. More...

double	residual_norm_
	local solution array pointing into Vec solution_ More...

ConstraintVec_	constraints_

std::vector< double >	globalSolution_
	global solution in numbering for linear system More...

Input::Record	in_rec_

Detailed Description

Definition at line 47 of file linsys_BDDC.hh.

Member Typedef Documentation

typedef la::BddcmlWrapper LinSys_BDDC::Bddcml_

private

Definition at line 114 of file linsys_BDDC.hh.

Constructor & Destructor Documentation

LinSys_BDDC::LinSys_BDDC	(	const unsigned	numDofsSub,
		const Distribution *	rows_ds,
		const int	matrixTypeInt = `0`,
		const int	numSubLoc = `1`,
		const bool	swap_sign = `false`
	)

Definition at line 62 of file linsys_BDDC.cc.

LinSys_BDDC::~LinSys_BDDC ( )

Definition at line 300 of file linsys_BDDC.cc.

Member Function Documentation

void LinSys_BDDC::apply_constrains ( double scalar = 1. )

virtual

Apply constrains to assembled matrix. Constrains are given by pairs: global row index, value. i.e. typedef pair<unsigned int, double> Constrain;

What is th meaning of ( const double factor ) form Cambridge code?

Implements LinSys.

Definition at line 240 of file linsys_BDDC.cc.

void LinSys_BDDC::diagonal_weights_set_value	(	int	global_index,
		double	value
	)

Definition at line 210 of file linsys_BDDC.cc.

void LinSys_BDDC::finish_assembly ( )

virtual

Finish assembly of the whole system. For PETSC this should call MatEndAssembly with MAT_FINAL_ASSEMBLY

Implements LinSys.

Definition at line 233 of file linsys_BDDC.cc.

double LinSys_BDDC::get_solution_precision ( )

virtual

Get precision of solving

Implements LinSys.

Definition at line 368 of file linsys_BDDC.cc.

void LinSys_BDDC::load_mesh	(	const int	nDim,
		const int	numNodes,
		const int	numDofs,
		const std::vector< int > &	inet,
		const std::vector< int > &	nnet,
		const std::vector< int > &	nndf,
		const std::vector< int > &	isegn,
		const std::vector< int > &	isngn,
		const std::vector< int > &	isvgvn,
		const std::vector< double > &	xyz,
		const std::vector< double > &	element_permeability,
		const int	meshDim
	)

Definition at line 113 of file linsys_BDDC.cc.

void LinSys_BDDC::mat_set_values	(	int	nrow,
		int *	rows,
		int	ncol,
		int *	cols,
		double *	vals
	)

virtual

Assembly full rectangular submatrix into the system matrix. Should be virtual, implemented differently in particular solvers.

Implements LinSys.

Definition at line 164 of file linsys_BDDC.cc.

PetscErrorCode LinSys_BDDC::mat_zero_entries ( )

overridevirtual

Clears entries of the matrix

Reimplemented from LinSys.

Definition at line 217 of file linsys_BDDC.cc.

void LinSys_BDDC::rhs_set_values	(	int	nrow,
		int *	rows,
		double *	vals
	)

virtual

Set values of the system right-hand side. Should be virtual, implemented differently in particular solvers.

Implements LinSys.

Definition at line 189 of file linsys_BDDC.cc.

PetscErrorCode LinSys_BDDC::rhs_zero_entries ( )

overridevirtual

Clears entries of the right-hand side

Reimplemented from LinSys.

Definition at line 225 of file linsys_BDDC.cc.

void LinSys_BDDC::set_from_input ( const Input::Record in_rec )

virtual

Sets basic parameters of LinSys defined by user in input file and used to calculate

Reimplemented from LinSys.

Definition at line 287 of file linsys_BDDC.cc.

int LinSys_BDDC::solve ( )

virtual

Solve the system and return convergence reason.

Implements LinSys.

Definition at line 247 of file linsys_BDDC.cc.

Member Data Documentation

Bddcml_* LinSys_BDDC::bddcml_

private

BDDCML wrapper.

Definition at line 115 of file linsys_BDDC.hh.

int LinSys_BDDC::bddcml_verbosity_level_

private

level of verbosity of BDDCML library ( 0 - only fatal errors reported, 1 - mild output, 2 - detailed output )//!< should adaptive BDDC be used?

Definition at line 102 of file linsys_BDDC.hh.

it::Record LinSys_BDDC::input_type

static

Initial value:

= it::Record("Bddc", "Solver setting.")
    .derive_from(LinSys::input_type)
    .declare_key("max_nondecr_it", it::Integer(0), it::Default("30"),
                 "Maximum number of iterations of the linear solver with non-decreasing residual.")
    .declare_key("number_of_levels", it::Integer(0), it::Default("2"),
                 "Number of levels in the multilevel method (=2 for the standard BDDC).")
    .declare_key("use_adaptive_bddc", it::Bool(), it::Default("false"),
                 "Use adaptive selection of constraints in BDDCML.")
    .declare_key("bddcml_verbosity_level", it::Integer(0,2), it::Default("0"),
                 "Level of verbosity of the BDDCML library: 0 - no output, 1 - mild output, 2 - detailed output.")

Definition at line 51 of file linsys_BDDC.hh.

std::vector<int> LinSys_BDDC::isngn_

private

indices of subdomain nodes in global numbering

Definition at line 109 of file linsys_BDDC.hh.

std::vector<double> LinSys_BDDC::locSolution_

private

subdomain solution

Definition at line 110 of file linsys_BDDC.hh.

Vec LinSys_BDDC::locSolVec_

private

local solution PETSc vector - sequential

Definition at line 111 of file linsys_BDDC.hh.

int LinSys_BDDC::max_nondecr_it_

private

parameters expected from input file:

maximum number of iterations of linear solver with non-decreasing residual

Definition at line 99 of file linsys_BDDC.hh.

int LinSys_BDDC::number_of_levels_

private

number of levels in the multilevel method

Definition at line 100 of file linsys_BDDC.hh.

const bool LinSys_BDDC::swap_sign_

private

swap sign of matrix and rhs entries, e.g. to make the matrix SPD

Definition at line 107 of file linsys_BDDC.hh.

bool LinSys_BDDC::use_adaptive_bddc_

private

should adaptive BDDC be used?

Definition at line 101 of file linsys_BDDC.hh.

VecScatter LinSys_BDDC::VSpetscToSubScatter_

private

scatter from solution_ to locSolVec_

Definition at line 112 of file linsys_BDDC.hh.

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

/home/cygwin64/F123-windows-release/flow123d/src/la/linsys_BDDC.hh
/home/cygwin64/F123-windows-release/flow123d/src/la/linsys_BDDC.cc

Public Member Functions

Static Public Attributes

Private Types

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation