parallel_ode::ReduceStrategy Class Reference

The base strategy class. More...

#include <parallel_reduce.h>

Inheritance diagram for parallel_ode::ReduceStrategy:

List of all members.

Public Member Functions
bool	clearReduceBuffers ()
int	getBodyAlignment () const
int	getBodyOffsetStride () const
int	getBodySize () const
int	getBodySizeWithReduction () const
int	getBodyStride () const
int	getFinalIndex (int baseBodyIndex, int bodyOffset)
	Computes the final index for a given body index into the body reduction buffer.
virtual ReduceType	getType () const
	Virtual function indicating the type of strategy.
virtual void	initialize (int bodySize, int maxBodyRepetitionCount, const IntVector &batchRepetitionCount)
	Virtual function that initializes the strategy. Essentially, this is where the strides/sizes are deteremined.
void	print ()
	ReduceStrategy ()
	Constructs an instance of the base strategy.
void	setBodyAlignment (int bodyAlignment)
	Sets the alignment for the number of bodies, e.g., 16/32/64.
void	setClearReduceBuffers (bool clearBuffers)
	Sets whether the reduction kernel should clear the reduction buffer after the reduce operation.
virtual	~ReduceStrategy ()
	Destroys the strategy.
Protected Member Functions
void	setBodyOffsetStride (int bodyStride)
void	setBodySize (int bodySize)
void	setBodySizeWithReduction (int bodySize)
void	setBodyStride (int bodyStride)
Private Attributes
bool	bClearReduceBuffers_
int	bodyAlignment_
int	bodyOffsetStride_
int	bodySize_
int	bodySizeWithReduction_
int	bodyStride_

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Detailed Description

The base strategy class.

This class is little more than a wrapper that assists the reduction kernel in determing the stride and offsets between body reduction entries in the reduction buffer.

Definition at line 25 of file parallel_reduce.h.

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Constructor & Destructor Documentation

parallel_ode::ReduceStrategy::ReduceStrategy

(

)

[inline]

Constructs an instance of the base strategy.

Definition at line 32 of file parallel_reduce.h.

virtual parallel_ode::ReduceStrategy::~ReduceStrategy

(

)

[inline, virtual]

Destroys the strategy.

Definition at line 43 of file parallel_reduce.h.

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Member Function Documentation

bool parallel_ode::ReduceStrategy::clearReduceBuffers

(

)

[inline]

Definition at line 91 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getBodyAlignment

(

)

const [inline]

Definition at line 85 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getBodyOffsetStride

(

)

const [inline]

Definition at line 89 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getBodySize

(

)

const [inline]

Definition at line 86 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getBodySizeWithReduction

(

)

const [inline]

Definition at line 87 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getBodyStride

(

)

const [inline]

Definition at line 88 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::getFinalIndex	(	int	baseBodyIndex,
		int	bodyOffset
	)		[inline]

Computes the final index for a given body index into the body reduction buffer.

Parameters:

baseBodyIndex	The base index for the given body
bodyOffset	The repetition number of this particular body within the batch

Returns:

Definition at line 83 of file parallel_reduce.h.

virtual ReduceType parallel_ode::ReduceStrategy::getType

(

)

const [inline, virtual]

Virtual function indicating the type of strategy.

Returns:

The type of strategy

Reimplemented in parallel_ode::CompactReduceStrategy, parallel_ode::StridedReduceStrategy, and parallel_ode::SequentialReduceStrategy.

Definition at line 59 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::initialize	(	int	bodySize,
		int	maxBodyRepetitionCount,
		const IntVector &	batchRepetitionCount
	)		[virtual]

Virtual function that initializes the strategy. Essentially, this is where the strides/sizes are deteremined.

Parameters:

bodySize	The number of bodies
maxBodyRepetitionCount	The maximum number of times a body is repeated for all batches
batchRepetitionCount	The maximum number of times a body is repeated in each batch

Reimplemented in parallel_ode::CompactReduceStrategy, parallel_ode::StridedReduceStrategy, and parallel_ode::SequentialReduceStrategy.

Definition at line 11 of file parallel_reduce.cpp.

void parallel_ode::ReduceStrategy::print

(

)

[inline]

Definition at line 93 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setBodyAlignment

(

int

bodyAlignment

)

[inline]

Sets the alignment for the number of bodies, e.g., 16/32/64.

Parameters:

bodyAlignment

The body alignment

Definition at line 66 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setBodyOffsetStride

(

int

bodyStride

)

[inline, protected]

Definition at line 101 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setBodySize

(

int

bodySize

)

[inline, protected]

Definition at line 98 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setBodySizeWithReduction

(

int

bodySize

)

[inline, protected]

Definition at line 99 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setBodyStride

(

int

bodyStride

)

[inline, protected]

Definition at line 100 of file parallel_reduce.h.

void parallel_ode::ReduceStrategy::setClearReduceBuffers

(

bool

clearBuffers

)

[inline]

Sets whether the reduction kernel should clear the reduction buffer after the reduce operation.

Parameters:

clearBuffers

Boolean indicating whether to clear or not

Definition at line 73 of file parallel_reduce.h.

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Member Data Documentation

bool parallel_ode::ReduceStrategy::bClearReduceBuffers_ [private]

Indicates whether the reduction kernel should zero out the reduction buffers

Definition at line 111 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::bodyAlignment_ [private]

# of bodies per memory aligned stride ( 128 bytes typically )

Definition at line 105 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::bodyOffsetStride_ [private]

Stride between entires for the same body in the reduction buffer

Definition at line 109 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::bodySize_ [private]

Total # of bodies

Definition at line 106 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::bodySizeWithReduction_ [private]

Total # of body reduction entries

Definition at line 107 of file parallel_reduce.h.

int parallel_ode::ReduceStrategy::bodyStride_ [private]

Stride between successive bodies in the reduction buffer

Definition at line 108 of file parallel_reduce.h.

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

• parallel_reduce.h
• parallel_reduce.cpp