Parallelsortingbyregularsampling SortingProblem Permute:unorderedsequenceorderedsequence Typicallykey(valuebeingsorted)ispartofrecordwithadditionalvalues(satellitedata) Mostparallelsortsdesignedfortheoreticalparallelmodels:notpractical Ourfocus:internalsortsbasedoncomparisonofkeys ...
Chapter14 Sorting Copyright©TheMcGraw-HillCompanies,Inc.Permissionrequiredforreproductionordisplay.Outline SortingproblemSequentialquicksortParallelquicksortHyperquicksortParallelsortingbyregularsampling Copyright©TheMcGraw-HillCompanies,Inc.Permissionrequiredforreproductionordisplay.Copyright©TheMcGraw-HillCompanies,...
In this paper we use the notion of quantile to implement Parallel Sorting by Regular Sampling (PSRS) on homogeneous clusters and we introduce a new algorithm for in-core parallel sorting integer keys which is based on the sampling technique. The algorithm is devoted to clusters with processors ...
SortingproblemSortingproblem SequentialquicksortSequentialquicksort ParallelquicksortParallelquicksort HyperquicksortHyperquicksort ParallelsortingbyregularsamplingParallelsortingbyregularsampling SortingProblem Permute:unorderedsequencePermute:unorderedsequence orderedordered sequencesequence Typicallykey(valuebeingsorted)ispart...
Amalgamating the split point data— which you'll recall is executing in a single thread after each thread has gathered its sample— is a simple question of sorting the sample values, and then taking the 16th, 32nd etc values (because noSamplesPerThread is 16 in our case). In the ...
The output of gzip -9 will be kept in order and saved to bigfile.gz 20121122 Last change: 2012-11-21 40 parallel PARALLEL(1) gzip works fine if the output is appended, but some processing does not work like that - for example sorting. For this GNU parallel can put the output of ...
D = 500, 000) in a large-scale run often leads to slow processing, as sorting and performing experience replay will be expensive. On the other hand, a small memory (e.g. D = 1000) will be much faster, but some samples will be overwritten once the memory becomes full. α = 0 ...
See [52] for a rather recent survey (with a focus on but not limited to GPUs) on parallel sorting algorithms. Information-theoretic results While previously, it was only known in the linear regime, that there is a strict information-theoretic phase-transition in the noiseless case [49],...
(PC) clusters interconnected by high performance local networks with raw throughput close to 1Gb/s and latency smaller than 10μsyielded, in the late 1990s, parallel systems whose computing power was close to or even better than the one of super-computers of the middle of the 1980s, for a...
Instead ofparallel bucket sortrecommended by some authors,a scheme using parallel regular sampling sort algorithm to construct the finest level data of the distributed tree is presented. 研究了最细层数据的建立方法,提出采用并行正则采样排序算法来代替众多文献所推荐的并行桶排序算法,以此来建立分布树的最细...