reduce_by_key_config_v2< BlockSize, ItemsPerThread, LoadKeysMethod, LoadValuesMethod, ScanAlgorithm, TilesPerBlock, SizeLimit > Struct Template Reference

Configuration of device-level reduce-by-key operation. More...

#include <device_reduce_by_key_config.hpp>

Static Public Attributes
static constexpr unsigned int	block_size = BlockSize
	Number of threads in a block.
static constexpr unsigned int	tiles_per_block = TilesPerBlock
	Number of tiles (BlockSize * ItemsPerThread items) to process per block.
static constexpr unsigned int	items_per_thread = ItemsPerThread
	Number of items processed by each thread per tile.
static constexpr block_load_method	load_keys_method = LoadKeysMethod
	A rocprim::block_load_method emum value indicating how the keys should be loaded. More...
static constexpr block_load_method	load_values_method = LoadValuesMethod
	A rocprim::block_load_method emum value indicating how the values should be loaded. More...
static constexpr block_scan_algorithm	scan_algorithm = ScanAlgorithm
	A rocprim::block_scan_algorithm enum value indicating how the reduction should be done. More...
static constexpr unsigned int	size_limit = SizeLimit
	Maximum possible number of values. Defaults to ROCPRIM_GRID_SIZE_LIMIT.

Detailed Description

template<unsigned int BlockSize, unsigned int ItemsPerThread, block_load_method LoadKeysMethod = block_load_method::block_load_transpose, block_load_method LoadValuesMethod = block_load_method::block_load_transpose, block_scan_algorithm ScanAlgorithm = block_scan_algorithm::using_warp_scan, unsigned int TilesPerBlock = 1, unsigned int SizeLimit = ROCPRIM_GRID_SIZE_LIMIT>
struct reduce_by_key_config_v2< BlockSize, ItemsPerThread, LoadKeysMethod, LoadValuesMethod, ScanAlgorithm, TilesPerBlock, SizeLimit >

Configuration of device-level reduce-by-key operation.

Template Parameters

BlockSize	number of threads in a block.
ItemsPerThread	number of items processed by each thread per tile.
LoadKeysMethod	method of loading keys
LoadValuesMethod	method of loading values
ScanAlgorithm	block level scan algorithm to use
TilesPerBlock	number of tiles (BlockSize * ItemsPerThread items) to process per block
SizeLimit	limit on the number of items for a single reduce_by_key kernel launch.

Member Data Documentation

load_keys_method

template<unsigned int BlockSize, unsigned int ItemsPerThread, block_load_method LoadKeysMethod = block_load_method::block_load_transpose, block_load_method LoadValuesMethod = block_load_method::block_load_transpose, block_scan_algorithm ScanAlgorithm = block_scan_algorithm::using_warp_scan, unsigned int TilesPerBlock = 1, unsigned int SizeLimit = ROCPRIM_GRID_SIZE_LIMIT>

constexpr block_load_method reduce_by_key_config_v2< BlockSize, ItemsPerThread, LoadKeysMethod, LoadValuesMethod, ScanAlgorithm, TilesPerBlock, SizeLimit >::load_keys_method = LoadKeysMethod

static

A rocprim::block_load_method emum value indicating how the keys should be loaded.

Defaults to block_load_method::block_load_transpose

load_values_method

template<unsigned int BlockSize, unsigned int ItemsPerThread, block_load_method LoadKeysMethod = block_load_method::block_load_transpose, block_load_method LoadValuesMethod = block_load_method::block_load_transpose, block_scan_algorithm ScanAlgorithm = block_scan_algorithm::using_warp_scan, unsigned int TilesPerBlock = 1, unsigned int SizeLimit = ROCPRIM_GRID_SIZE_LIMIT>

constexpr block_load_method reduce_by_key_config_v2< BlockSize, ItemsPerThread, LoadKeysMethod, LoadValuesMethod, ScanAlgorithm, TilesPerBlock, SizeLimit >::load_values_method = LoadValuesMethod

static

A rocprim::block_load_method emum value indicating how the values should be loaded.

Defaults to block_load_method::block_load_transpose

scan_algorithm

template<unsigned int BlockSize, unsigned int ItemsPerThread, block_load_method LoadKeysMethod = block_load_method::block_load_transpose, block_load_method LoadValuesMethod = block_load_method::block_load_transpose, block_scan_algorithm ScanAlgorithm = block_scan_algorithm::using_warp_scan, unsigned int TilesPerBlock = 1, unsigned int SizeLimit = ROCPRIM_GRID_SIZE_LIMIT>

constexpr block_scan_algorithm reduce_by_key_config_v2< BlockSize, ItemsPerThread, LoadKeysMethod, LoadValuesMethod, ScanAlgorithm, TilesPerBlock, SizeLimit >::scan_algorithm = ScanAlgorithm

static

A rocprim::block_scan_algorithm enum value indicating how the reduction should be done.

Defaults to block_scan_algorithm::using_warp_scan

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

• rocprim/include/rocprim/device/device_reduce_by_key_config.hpp