stapl::read_edge_list_line_shuffle< ShuffleMapperView > Struct Template Reference

Edge-list line-reader functor for the graph_reader().Reads an edge (source and target) from the input line (stream). Randomly shuffle the vertex IDs but maintain the right edges. This is useful when a bad locality for the vertices has to be broken EdgeList format: #edge-source #edge-target #weight format: More...

Public Member Functions
	read_edge_list_line_shuffle (ShuffleMapperView const &mapper)
template<typename Aggr , typename Graph >
size_t	operator() (std::stringstream &ss, Aggr &aggr, Graph *g) const

Public Types
using	has_edge_property = std::false_type
	Lines do not have properties for edges.

Detailed Description

template<typename ShuffleMapperView>
struct stapl::read_edge_list_line_shuffle< ShuffleMapperView >

Edge-list line-reader functor for the graph_reader().

Reads an edge (source and target) from the input line (stream). Randomly shuffle the vertex IDs but maintain the right edges. This is useful when a bad locality for the vertices has to be broken EdgeList format: #edge-source #edge-target #weight format:

/// #vertices #edges
/// source0 target0
/// source1 target1
/// :
/// 

Constructor & Destructor Documentation

read_edge_list_line_shuffle()

template<typename ShuffleMapperView >

stapl::read_edge_list_line_shuffle< ShuffleMapperView >::read_edge_list_line_shuffle

(

ShuffleMapperView const &

mapper

)

Parameters

mapper

A view over a stapl container which gives a one to one mapping from one vertex id to a new id. No 2 ids must map to the same new id

Member Function Documentation

operator()()

template<typename ShuffleMapperView >

template<typename Aggr , typename Graph >

size_t stapl::read_edge_list_line_shuffle< ShuffleMapperView >::operator()	(	std::stringstream &	ss,
		Aggr &	aggr,
		Graph *	g
	)		const

Parameters

ss	The stringstream representing a line from the input file.
aggr	The edge-aggregator to output the read edges to.
g	A pointer to the output graph. The edges may be added to the graph, or additional operations performed (i.e., setting properties for vertices and edges, etc.)

Returns

'0' for success, '1' for failure.

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

• graph_io.hpp