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arXiv 1402.3789cs.DC
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大数据量聚类分析问题的并行算法

Parallel algorithms for problems of cluster analysis with very large amount of data

Natalya Litvinenko

摘要:

在本文中,我们解决了GPU上的大量问题,大量的数据,这是不适合解决的SIMD技术。对于给定的问题,我们考虑三级并行化。CPU的多线程用于顶层,图形处理器用于大规模计算。为了解决GPU上的聚类分析问题,提出了最近邻法(NNM)。该算法允许我们处理多达200万条记录,特征数量多达25个。由于串行算法和并行算法在本质上是不同的,因此很难比较计算时间。然而,进行了一些比较。在计算时间上的增益约为10倍。我们计划在对算法进行微调后将该因子提高到50-100。

英文摘要:

In this paper we solve on GPUs massive problems with large amount of data, which are not appropriate for solution with the SIMD technology. For the given problem we consider a three-level parallelization. The multithreading of CPU is used at the top level and graphic processors for massive computing. For solving problems of cluster analysis on GPUs the nearest neighbor method (NNM) is developed. This algorithm allows us to handle up to 2 millions records with number of features up to 25. Since sequential and parallel algorithms are fundamentally different, it is difficult to compare the computation times. However, some comparisons are made. The gain in the computing time is about 10 times. We plan to increase this factor up to 50-100 after fine tuning of algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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