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__gnu_parallel::_Settings.3cxx
Langue: en
Version: 358645 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Member Function Documentation
- Member Data Documentation
- sequence_index_t __gnu_parallel::_Settings::accumulate_minimal_n
- unsigned int __gnu_parallel::_Settings::adjacent_difference_minimal_n
- unsigned int __gnu_parallel::_Settings::cache_line_size
- sequence_index_t __gnu_parallel::_Settings::count_minimal_n
- sequence_index_t __gnu_parallel::_Settings::fill_minimal_n
- double __gnu_parallel::_Settings::find_increasing_factor
- sequence_index_t __gnu_parallel::_Settings::find_initial_block_size
- sequence_index_t __gnu_parallel::_Settings::find_maximum_block_size
- sequence_index_t __gnu_parallel::_Settings::find_sequential_search_size
- sequence_index_t __gnu_parallel::_Settings::for_each_minimal_n
- sequence_index_t __gnu_parallel::_Settings::generate_minimal_n
- unsigned long long __gnu_parallel::_Settings::L1_cache_size
- unsigned long long __gnu_parallel::_Settings::L2_cache_size
- sequence_index_t __gnu_parallel::_Settings::max_element_minimal_n
- sequence_index_t __gnu_parallel::_Settings::merge_minimal_n
- unsigned int __gnu_parallel::_Settings::merge_oversampling
- sequence_index_t __gnu_parallel::_Settings::min_element_minimal_n
- int __gnu_parallel::_Settings::multiway_merge_minimal_k
- sequence_index_t __gnu_parallel::_Settings::multiway_merge_minimal_n
- unsigned int __gnu_parallel::_Settings::multiway_merge_oversampling
- sequence_index_t __gnu_parallel::_Settings::nth_element_minimal_n
- sequence_index_t __gnu_parallel::_Settings::partial_sort_minimal_n
- float __gnu_parallel::_Settings::partial_sum_dilation
- unsigned int __gnu_parallel::_Settings::partial_sum_minimal_n
- double __gnu_parallel::_Settings::partition_chunk_share
- sequence_index_t __gnu_parallel::_Settings::partition_chunk_size
- sequence_index_t __gnu_parallel::_Settings::partition_minimal_n
- sequence_index_t __gnu_parallel::_Settings::qsb_steals
- unsigned int __gnu_parallel::_Settings::random_shuffle_minimal_n
- sequence_index_t __gnu_parallel::_Settings::replace_minimal_n
- sequence_index_t __gnu_parallel::_Settings::set_difference_minimal_n
- sequence_index_t __gnu_parallel::_Settings::set_intersection_minimal_n
- sequence_index_t __gnu_parallel::_Settings::set_symmetric_difference_minimal_n
- sequence_index_t __gnu_parallel::_Settings::set_union_minimal_n
- sequence_index_t __gnu_parallel::_Settings::sort_minimal_n
- unsigned int __gnu_parallel::_Settings::sort_mwms_oversampling
- unsigned int __gnu_parallel::_Settings::sort_qs_num_samples_preset
- sequence_index_t __gnu_parallel::_Settings::sort_qsb_base_case_maximal_n
- unsigned int __gnu_parallel::_Settings::TLB_size
- sequence_index_t __gnu_parallel::_Settings::transform_minimal_n
- sequence_index_t __gnu_parallel::_Settings::unique_copy_minimal_n
- Author
NAME
__gnu_parallel::_Settings -class _Settings /// Run-time settings for the parallel mode, including all tunable parameters.
SYNOPSIS
Static Public Member Functions
static const _Settings & get () throw ()
static void set (_Settings &) throw ()
Public Attributes
sequence_index_t accumulate_minimal_n
unsigned int adjacent_difference_minimal_n
_AlgorithmStrategy algorithm_strategy
unsigned int cache_line_size
sequence_index_t count_minimal_n
sequence_index_t fill_minimal_n
_FindAlgorithm find_algorithm
double find_increasing_factor
sequence_index_t find_initial_block_size
sequence_index_t find_maximum_block_size
sequence_index_t find_sequential_search_size
sequence_index_t for_each_minimal_n
sequence_index_t generate_minimal_n
unsigned long long L1_cache_size
unsigned long long L2_cache_size
sequence_index_t max_element_minimal_n
sequence_index_t merge_minimal_n
unsigned int merge_oversampling
_SplittingAlgorithm merge_splitting
sequence_index_t min_element_minimal_n
_MultiwayMergeAlgorithm multiway_merge_algorithm
int multiway_merge_minimal_k
sequence_index_t multiway_merge_minimal_n
unsigned int multiway_merge_oversampling
_SplittingAlgorithm multiway_merge_splitting
sequence_index_t nth_element_minimal_n
sequence_index_t partial_sort_minimal_n
_PartialSumAlgorithm partial_sum_algorithm
float partial_sum_dilation
unsigned int partial_sum_minimal_n
double partition_chunk_share
sequence_index_t partition_chunk_size
sequence_index_t partition_minimal_n
sequence_index_t qsb_steals
unsigned int random_shuffle_minimal_n
sequence_index_t replace_minimal_n
sequence_index_t set_difference_minimal_n
sequence_index_t set_intersection_minimal_n
sequence_index_t set_symmetric_difference_minimal_n
sequence_index_t set_union_minimal_n
_SortAlgorithm sort_algorithm
sequence_index_t sort_minimal_n
unsigned int sort_mwms_oversampling
unsigned int sort_qs_num_samples_preset
sequence_index_t sort_qsb_base_case_maximal_n
_SplittingAlgorithm sort_splitting
unsigned int TLB_size
sequence_index_t transform_minimal_n
sequence_index_t unique_copy_minimal_n
sequence_index_t workstealing_chunk_size
Detailed Description
class _Settings /// Run-time settings for the parallel mode, including all tunable parameters.
Definition at line 118 of file settings.h.
Member Function Documentation
static const _Settings& __gnu_parallel::_Settings::get () throw () [static]
Get the global settings.
Referenced by __gnu_parallel::find_template(), __gnu_parallel::for_each_template_random_access_workstealing(), __gnu_parallel::multiway_merge_sampling_splitting(), __gnu_parallel::parallel_multiway_merge(), __gnu_parallel::parallel_nth_element(), __gnu_parallel::parallel_partial_sum(), __gnu_parallel::parallel_partial_sum_linear(), __gnu_parallel::parallel_partition(), __gnu_parallel::parallel_sort(), __gnu_parallel::parallel_sort_mwms(), __gnu_parallel::parallel_sort_mwms_pu(), __gnu_parallel::parallel_sort_qs_conquer(), and __gnu_parallel::qsb_local_sort_with_helping().
static void __gnu_parallel::_Settings::set (_Settings &) throw () [static]
Set the global settings.
Member Data Documentation
sequence_index_t __gnu_parallel::_Settings::accumulate_minimal_n
Minimal input size for accumulate.
Definition at line 134 of file settings.h.
unsigned int __gnu_parallel::_Settings::adjacent_difference_minimal_n
Minimal input size for adjacent_difference.
Definition at line 137 of file settings.h.
unsigned int __gnu_parallel::_Settings::cache_line_size
Overestimation of cache line size. Used to avoid false /// sharing, i. e. elements of different threads are at least this /// amount apart.
Definition at line 260 of file settings.h.
Referenced by __gnu_parallel::for_each_template_random_access_workstealing().
sequence_index_t __gnu_parallel::_Settings::count_minimal_n
Minimal input size for count and count_if.
Definition at line 140 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::fill_minimal_n
Minimal input size for fill.
Definition at line 143 of file settings.h.
double __gnu_parallel::_Settings::find_increasing_factor
Block size increase factor for find.
Definition at line 146 of file settings.h.
Referenced by __gnu_parallel::find_template().
sequence_index_t __gnu_parallel::_Settings::find_initial_block_size
Initial block size for find.
Definition at line 149 of file settings.h.
Referenced by __gnu_parallel::find_template().
sequence_index_t __gnu_parallel::_Settings::find_maximum_block_size
Maximal block size for find.
Definition at line 152 of file settings.h.
Referenced by __gnu_parallel::find_template().
sequence_index_t __gnu_parallel::_Settings::find_sequential_search_size
Start with looking for this many elements sequentially, for find.
Definition at line 155 of file settings.h.
Referenced by __gnu_parallel::find_template().
sequence_index_t __gnu_parallel::_Settings::for_each_minimal_n
Minimal input size for for_each.
Definition at line 158 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::generate_minimal_n
Minimal input size for generate.
Definition at line 161 of file settings.h.
unsigned long long __gnu_parallel::_Settings::L1_cache_size
Size of the L1 cache in bytes (underestimation).
Definition at line 249 of file settings.h.
unsigned long long __gnu_parallel::_Settings::L2_cache_size
Size of the L2 cache in bytes (underestimation).
Definition at line 252 of file settings.h.
Referenced by __gnu_parallel::parallel_random_shuffle_drs(), and __gnu_parallel::sequential_random_shuffle().
sequence_index_t __gnu_parallel::_Settings::max_element_minimal_n
Minimal input size for max_element.
Definition at line 164 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::merge_minimal_n
Minimal input size for merge.
Definition at line 167 of file settings.h.
unsigned int __gnu_parallel::_Settings::merge_oversampling
Oversampling factor for merge.
Definition at line 170 of file settings.h.
Referenced by __gnu_parallel::multiway_merge_sampling_splitting(), and __gnu_parallel::parallel_multiway_merge().
sequence_index_t __gnu_parallel::_Settings::min_element_minimal_n
Minimal input size for min_element.
Definition at line 173 of file settings.h.
int __gnu_parallel::_Settings::multiway_merge_minimal_k
Oversampling factor for multiway_merge.
Definition at line 179 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::multiway_merge_minimal_n
Minimal input size for multiway_merge.
Definition at line 176 of file settings.h.
unsigned int __gnu_parallel::_Settings::multiway_merge_oversampling
Oversampling factor for multiway_merge.
Definition at line 182 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::nth_element_minimal_n
Minimal input size for nth_element.
Definition at line 185 of file settings.h.
Referenced by __gnu_parallel::parallel_nth_element().
sequence_index_t __gnu_parallel::_Settings::partial_sort_minimal_n
Minimal input size for partial_sort.
Definition at line 198 of file settings.h.
float __gnu_parallel::_Settings::partial_sum_dilation
Ratio for partial_sum. Assume 'sum and write result' to be /// this factor slower than just 'sum'.
Definition at line 202 of file settings.h.
Referenced by __gnu_parallel::parallel_partial_sum_linear().
unsigned int __gnu_parallel::_Settings::partial_sum_minimal_n
Minimal input size for partial_sum.
Definition at line 205 of file settings.h.
double __gnu_parallel::_Settings::partition_chunk_share
Chunk size for partition, relative to input size. If > 0.0, /// this value overrides partition_chunk_size.
Definition at line 192 of file settings.h.
Referenced by __gnu_parallel::parallel_partition().
sequence_index_t __gnu_parallel::_Settings::partition_chunk_size
Chunk size for partition.
Definition at line 188 of file settings.h.
Referenced by __gnu_parallel::parallel_partition().
sequence_index_t __gnu_parallel::_Settings::partition_minimal_n
Minimal input size for partition.
Definition at line 195 of file settings.h.
Referenced by __gnu_parallel::parallel_nth_element().
sequence_index_t __gnu_parallel::_Settings::qsb_steals
The number of stolen ranges in load-balanced quicksort.
Definition at line 265 of file settings.h.
unsigned int __gnu_parallel::_Settings::random_shuffle_minimal_n
Minimal input size for random_shuffle.
Definition at line 208 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::replace_minimal_n
Minimal input size for replace and replace_if.
Definition at line 211 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::set_difference_minimal_n
Minimal input size for set_difference.
Definition at line 214 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::set_intersection_minimal_n
Minimal input size for set_intersection.
Definition at line 217 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::set_symmetric_difference_minimal_n
Minimal input size for set_symmetric_difference.
Definition at line 220 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::set_union_minimal_n
Minimal input size for set_union.
Definition at line 223 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::sort_minimal_n
Minimal input size for parallel sorting.
Definition at line 226 of file settings.h.
unsigned int __gnu_parallel::_Settings::sort_mwms_oversampling
Oversampling factor for parallel std::sort (MWMS).
Definition at line 229 of file settings.h.
Referenced by __gnu_parallel::parallel_sort_mwms(), and __gnu_parallel::parallel_sort_mwms_pu().
unsigned int __gnu_parallel::_Settings::sort_qs_num_samples_preset
Such many samples to take to find a good pivot (quicksort).
Definition at line 232 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::sort_qsb_base_case_maximal_n
Maximal subsequence length to switch to unbalanced base case. /// Applies to std::sort with dynamically load-balanced quicksort.
Definition at line 236 of file settings.h.
Referenced by __gnu_parallel::qsb_local_sort_with_helping().
unsigned int __gnu_parallel::_Settings::TLB_size
Size of the Translation Lookaside Buffer (underestimation).
Definition at line 255 of file settings.h.
Referenced by __gnu_parallel::parallel_random_shuffle_drs(), and __gnu_parallel::sequential_random_shuffle().
sequence_index_t __gnu_parallel::_Settings::transform_minimal_n
Minimal input size for parallel std::transform.
Definition at line 239 of file settings.h.
sequence_index_t __gnu_parallel::_Settings::unique_copy_minimal_n
Minimal input size for unique_copy.
Definition at line 242 of file settings.h.
Author
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