cub::TilePrefixCallbackOp< T, ScanOpT, ScanTileStateT, PTX_ARCH > Struct Template Reference

Detailed Description

template<typename T, typename ScanOpT, typename ScanTileStateT, int PTX_ARCH = CUB_PTX_ARCH>
struct cub::TilePrefixCallbackOp< T, ScanOpT, ScanTileStateT, PTX_ARCH >

Stateful block-scan prefix functor. Provides the the running prefix for the current tile by using the call-back warp to wait on on aggregates/prefixes from predecessor tiles to become available.

Definition at line 680 of file single_pass_scan_operators.cuh.

Data Structures
struct	_TempStorage
struct	TempStorage

Public Types
typedef WarpReduce< T, CUB_PTX_WARP_THREADS, PTX_ARCH >	WarpReduceT
typedef ScanTileStateT::StatusWord	StatusWord

Public Member Functions
__device__ __forceinline__	TilePrefixCallbackOp (ScanTileStateT &tile_status, TempStorage &temp_storage, ScanOpT scan_op, int tile_idx)
__device__ __forceinline__ void	ProcessWindow (int predecessor_idx, StatusWord &predecessor_status, T &window_aggregate)
__device__ __forceinline__ T	operator() (T block_aggregate)
__device__ __forceinline__ T	GetExclusivePrefix ()
__device__ __forceinline__ T	GetInclusivePrefix ()
__device__ __forceinline__ T	GetBlockAggregate ()

Data Fields
_TempStorage &	temp_storage
	Reference to a warp-reduction instance.
ScanTileStateT &	tile_status
	Interface to tile status.
ScanOpT	scan_op
	Binary scan operator.
int	tile_idx
	The current tile index.
T	exclusive_prefix
	Exclusive prefix for the tile.
T	inclusive_prefix
	Inclusive prefix for the tile.

Member Function Documentation

ProcessWindow()

template<typename T , typename ScanOpT , typename ScanTileStateT , int PTX_ARCH = CUB_PTX_ARCH>

__device__ __forceinline__ void cub::TilePrefixCallbackOp< T, ScanOpT, ScanTileStateT, PTX_ARCH >::ProcessWindow ( int  predecessor_idx, StatusWord &  predecessor_status, T &  window_aggregate  )

inline

Parameters

	predecessor_idx	Preceding tile index to inspect
[out]	predecessor_status	Preceding tile status
[out]	window_aggregate	Relevant partial reduction from this window of preceding tiles

Definition at line 724 of file single_pass_scan_operators.cuh.

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

• openfpm_data/src/util/cuda/cub_old/agent/single_pass_scan_operators.cuh