cuv::dev_block_descriptor< __value_type, __index_type > Class Template Reference

Block descriptors on device this class is needed for DIA_Mat = Dense_Mat * Dense_Mat it stores all blocks of size SPARSE_DIA_BLOCK_SIZE x SPARSE_DIA_BLOCK_SIZE of a regluar grid where at least one diagonal crosses the block. More...

#include <densedense_to_sparse.hpp>

Collaboration diagram for cuv::dev_block_descriptor< __value_type, __index_type >:

Classes
struct	block
	One block consists of the index of its upper-left corner and the offsets of all diagonals crossing this block, a Block has Size SPARSE_DIA_BLOCK_SIZE*SPARSE_DIA_BLOCK_SIZE. More...
struct	block_array

Public Types
typedef __value_type	value_type
	type of matrix elements
typedef __index_type	index_type
	type of matrix indices
typedef dia_matrix< value_type, dev_memory_space, index_type >	diamat_type
	matrix-type associated with blockdescriptor

Public Member Functions
	dev_block_descriptor (const diamat_type &d)
	Create a block descriptor for a DIA matrix.
	~dev_block_descriptor ()
	destroy the block descriptor
const block_array &	blocks () const
int	len () const

Protected Attributes
struct cuv::dev_block_descriptor::block_array	m_blocks
	structure holding the actual data stored in the descriptor

Detailed Description

template<class __value_type, class __index_type = unsigned int>
class cuv::dev_block_descriptor< __value_type, __index_type >

Block descriptors on device this class is needed for DIA_Mat = Dense_Mat * Dense_Mat it stores all blocks of size SPARSE_DIA_BLOCK_SIZE x SPARSE_DIA_BLOCK_SIZE of a regluar grid where at least one diagonal crosses the block.

Creating Block-Descriptors can take some time, but this pays off when calculating densedense_to_dia (see below)

Definition at line 73 of file densedense_to_sparse.hpp.

Constructor & Destructor Documentation

template<class __value_type , class __index_type = unsigned int>

cuv::dev_block_descriptor< __value_type, __index_type >::dev_block_descriptor

(

const diamat_type &

d

)

Create a block descriptor for a DIA matrix.

Parameters

d	a dia-matrix for which to create the block-descriptor.

Member Function Documentation

template<class __value_type , class __index_type = unsigned int>

const block_array& cuv::dev_block_descriptor< __value_type, __index_type >::blocks ( ) const

inline

Returns

the internal block structure

Definition at line 101 of file densedense_to_sparse.hpp.

template<class __value_type , class __index_type = unsigned int>

int cuv::dev_block_descriptor< __value_type, __index_type >::len ( ) const

inline

Returns

the number of blocks

Definition at line 104 of file densedense_to_sparse.hpp.

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

• src/cuv/matrix_ops/densedense_to_sparse.hpp