cub::DoubleBuffer< T > Struct Template Reference

Double-buffer storage wrapper for multi-pass stream transformations that require more than one storage array for streaming intermediate results back and forth. More...

Detailed Description

template<typename T>
struct cub::DoubleBuffer< T >

Double-buffer storage wrapper for multi-pass stream transformations that require more than one storage array for streaming intermediate results back and forth.

Many multi-pass computations require a pair of "ping-pong" storage buffers (e.g., one for reading from and the other for writing to, and then vice-versa for the subsequent pass). This structure wraps a set of device buffers and a "selector" member to track which is "current".

Definition at line 791 of file util_type.cuh.

Public Member Functions
__host__ __device__ __forceinline__	DoubleBuffer ()
	Constructor.
__host__ __device__ __forceinline__	DoubleBuffer (T *d_current, T *d_alternate)
	Constructor.
__host__ __device__ __forceinline__ T *	Current ()
	Return pointer to the currently valid buffer.
__host__ __device__ __forceinline__ T *	Alternate ()
	Return pointer to the currently invalid buffer.

Data Fields
T *	d_buffers [2]
	Pair of device buffer pointers.
int	selector
	Selector into d_buffers (i.e., the active/valid buffer)

Constructor & Destructor Documentation

DoubleBuffer() [1/2]

template<typename T >

__host__ __device__ __forceinline__ cub::DoubleBuffer< T >::DoubleBuffer ( )

inline

Constructor.

Definition at line 800 of file util_type.cuh.

DoubleBuffer() [2/2]

template<typename T >

__host__ __device__ __forceinline__ cub::DoubleBuffer< T >::DoubleBuffer ( T *  d_current, T *  d_alternate  )

inline

Constructor.

Parameters

d_current	The currently valid buffer
d_alternate	Alternate storage buffer of the same size as d_current

Definition at line 808 of file util_type.cuh.

Member Function Documentation

Alternate()

template<typename T >

__host__ __device__ __forceinline__ T * cub::DoubleBuffer< T >::Alternate ( )

inline

Return pointer to the currently invalid buffer.

Definition at line 821 of file util_type.cuh.

Current()

template<typename T >

__host__ __device__ __forceinline__ T * cub::DoubleBuffer< T >::Current ( )

inline

Return pointer to the currently valid buffer.

Definition at line 818 of file util_type.cuh.

Field Documentation

d_buffers

template<typename T >

T* cub::DoubleBuffer< T >::d_buffers[2]

Pair of device buffer pointers.

Definition at line 794 of file util_type.cuh.

selector

template<typename T >

int cub::DoubleBuffer< T >::selector

Selector into d_buffers (i.e., the active/valid buffer)

Definition at line 797 of file util_type.cuh.

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

• openfpm_data/src/util/cuda/cub_old/util_type.cuh