Sparse Matrix implementation, that map over Eigen. More...

Detailed Description

template<typename T, typename id_t>
class SparseMatrix< T, id_t, PETSC_BASE >

Sparse Matrix implementation, that map over Eigen.

Template Parameters

T	Type of the sparse Matrix store on each row,colums
id_t	type of id
impl	implementation

Definition at line 96 of file SparseMatrix_petsc.hpp.

#include <SparseMatrix_petsc.hpp>

Public Types
typedef boost::mpl::int_ < PETSC_BASE >	triplet_impl
	Triplet implementation id.

typedef triplet< T, PETSC_BASE >	triplet_type
	Triplet type.

Public Member Functions
	SparseMatrix (size_t N1, size_t N2, size_t n_row_local)
	Create an empty Matrix. More...

	SparseMatrix ()
	Create an empty Matrix. More...

openfpm::vector< triplet_type > &	getMatrixTriplets ()
	Get the Matrix triplets buffer. More...

const Mat &	getMat () const
	Get the Patsc Matrix object. More...

Mat &	getMat ()
	Get the Petsc Matrix object. More...

void	resize (size_t row, size_t col, size_t l_row, size_t l_col)
	Resize the Sparse Matrix. More...

T	operator() (id_t i, id_t j)
	Get the row i and the colum j of the Matrix. More...

T	getValue (size_t r, size_t c)
	Get the value from triplet. More...

Private Member Functions
void	fill_petsc ()
	Fill the petsc Matrix. More...

Private Attributes
size_t	g_row
	Number of matrix row (global)

size_t	g_col
	Number of matrix colums (global)

size_t	l_row
	Number of matrix row (local)

size_t	l_col
	Number of matrix colums (local)

size_t	start_row
	starting row for this processor

bool	m_created = false
	indicate if the matrix has been created

Mat	mat
	PETSC Matrix.

openfpm::vector< triplet_type >	trpl
	Triplets of the matrix.

openfpm::vector< PetscScalar >	vals
	temporary list of values

openfpm::vector< PetscInt >	cols
	temporary list of colums

openfpm::vector< PetscInt >	d_nnz
	PETSC d_nnz.

openfpm::vector< PetscInt >	o_nnz
	PETSC o_nnz.

Constructor & Destructor Documentation

template<typename T , typename id_t >

SparseMatrix< T, id_t, PETSC_BASE >::SparseMatrix	(	size_t	N1,
		size_t	N2,
		size_t	n_row_local
	)

inline

Create an empty Matrix.

Parameters

N1	number of row
N2	number of colums
N1_loc	number of local row

Definition at line 213 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

SparseMatrix< T, id_t, PETSC_BASE >::SparseMatrix ( )

inline

Create an empty Matrix.

Definition at line 236 of file SparseMatrix_petsc.hpp.

Member Function Documentation

template<typename T , typename id_t >

void SparseMatrix< T, id_t, PETSC_BASE >::fill_petsc ( )

inlineprivate

Fill the petsc Matrix.

Definition at line 144 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

const Mat& SparseMatrix< T, id_t, PETSC_BASE >::getMat ( ) const

inline

Get the Patsc Matrix object.

Returns: the Eigen Matrix

Definition at line 269 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

Mat& SparseMatrix< T, id_t, PETSC_BASE >::getMat ( )

inline

Get the Petsc Matrix object.

Returns: the Petsc Matrix

Definition at line 282 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

openfpm::vector<triplet_type>& SparseMatrix< T, id_t, PETSC_BASE >::getMatrixTriplets ( )

inline

Get the Matrix triplets buffer.

It return a buffer that can be filled with triplets

Returns: Petsc Matrix

Definition at line 257 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

T SparseMatrix< T, id_t, PETSC_BASE >::getValue	(	size_t	r,
		size_t	c
	)

inline

Get the value from triplet.

Warning: It is extremly slow because it do a full search across the triplets elements

Parameters

r	row
c	colum

Definition at line 345 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

T SparseMatrix< T, id_t, PETSC_BASE >::operator()	(	id_t	i,
		id_t	j
	)

inline

Get the row i and the colum j of the Matrix.

Warning: it is slow, consider to get blocks of the matrix

Returns: the value of the matrix at row i colum j

Definition at line 328 of file SparseMatrix_petsc.hpp.

template<typename T , typename id_t >

void SparseMatrix< T, id_t, PETSC_BASE >::resize	(	size_t	row,
		size_t	col,
		size_t	l_row,
		size_t	l_col
	)

inline

Resize the Sparse Matrix.

Parameters

row	number for row
col	number of colums
local	number of row
local	number of colums

Definition at line 298 of file SparseMatrix_petsc.hpp.

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

openfpm_numerics/src/Matrix/SparseMatrix_petsc.hpp

Detailed Description

template<typename T, typename id_t> class SparseMatrix< T, id_t, PETSC_BASE >

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Constructor & Destructor Documentation

Member Function Documentation

template<typename T, typename id_t>
class SparseMatrix< T, id_t, PETSC_BASE >