stapl::composition::m_mr_transform_wf Struct Reference

Workfunction that is one possible algorithmic coarsening of the nested skeleton map_func(functional::map_reduce(), ...). More...

Classes
struct	map_wf
	Coarsened binary workfunction which is map operator for m_mr_transform_wf. More...
struct	reduce_wf
	Coarsened binary reduction workfunction defined for result type of map_wf. More...

Public Member Functions
template<typename V0 , typename V1 >
result_type	operator() (V0 &mat_columns, V1 &vector_piece) const
	Function operator. More...

Public Types
typedef std::vector< double > *	result_type

Detailed Description

Workfunction that is one possible algorithmic coarsening of the nested skeleton map_func(functional::map_reduce(), ...).

Transforms the fine grain specification into a map_reduce operating on a transposed version of the input two dimensional array view, with custom coarsened map and reduce workfunctions.

Implemented with matrix vector multiplication as driving example.

Member Function Documentation

operator()()

template<typename V0 , typename V1 >

result_type stapl::composition::m_mr_transform_wf::operator()	(	V0 &	mat_columns,
		V1 &	vector_piece
	)		const

Function operator.

Parameters

mat_columns	A two dimensional array view.
vector_piece	A one dimensional array view.

Returns

A one dimensional array view containing result of the map_reduce operation.

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

• new_map_transformations.hpp