Reducer< T > Class Template Reference

#include <Reducer.h>

Inheritance diagram for Reducer< T >:

Public Types
typedef T(*	ReductionOp )(const T &, const T &)
	The function that performs the reduction. More...

Public Member Functions
	Reducer (const char *name, ReductionOp)
virtual	~Reducer ()
	Destroy the Reducer and free associated memory. More...
T	reduce (int myrank, int numThreads, const T &value)
Public Member Functions inherited from Barrier
	Barrier (const char *name)
virtual	~Barrier ()
	Destroy the barrier. More...
void	wait (int numThreads)

Member Typedef Documentation

typedef T(* ReductionOp)(const T &, const T &)

The function that performs the reduction.

Constructor & Destructor Documentation

Reducer	(	const char *	name,
		ReductionOp
	)

Create a Reducer. At each operation, a barrier wait is performed, and the operation will be performed to compute the global balue. name should be a static string which describes the primitive for debugging purposes. op is a function which will compute a reduced value from a pair of values. op should be associative and commutative, even up to floating point errors.

~Reducer ( )

virtual

Destroy the Reducer and free associated memory.

Member Function Documentation

T reduce	(	int	myrank,
		int	numThreads,
		const T &	value
	)

Performs a global reduction over all of the threads. As soon as each thread has called reduce with their local value, each thread will return the same global reduced value.

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

• Core/Thread/Legacy/Reducer.h