arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1409.7764cs.SIcs.DCcs.DS
收藏

GPU上介数中心性算法的比较研究

A (Somewhat Dated) Comparative Study of Betweenness Centrality Algorithms on GPU

Saad Quader

摘要:

计算介数中心性(BC)的问题是很重要的分析图在许多实际应用中,如社交网络,生物网络,交通网络,电路等,因为这个问题是计算密集型,研究人员一直在开发算法,使用高性能的计算资源,如超级计算机,集群,图形处理单元(GPU)。当前用于计算BC的GPU算法采用Brandes的顺序算法,对于线程调度、数据结构和原子操作具有不同的折衷。在本文中,我们研究了三个GPU算法计算BC的未加权,有向,无标度网络。我们讨论和衡量他们的平衡线程调度,原子操作,同步和延迟隐藏的设计选择的权衡。我们的程序是用NVIDIA CUDA C编写的,并在NVIDIA Tesla M2050 GPU上测试。

英文摘要:

The problem of computing the Betweenness Centrality (BC) is important in analyzing graphs in many practical applications like social networks, biological networks, transportation networks, electrical circuits, etc. Since this problem is computation intensive, researchers have been developing algorithms using high performance computing resources like supercomputers, clusters, and Graphics Processing Units (GPUs). Current GPU algorithms for computing BC employ Brandes' sequential algorithm with different trade-offs for thread scheduling, data structures, and atomic operations. In this paper, we study three GPU algorithms for computing BC of unweighted, directed, scale-free networks. We discuss and measure the trade-offs of their design choices about balanced thread scheduling, atomic operations, synchronizations and latency hiding. Our program is written in NVIDIA CUDA C and was tested on an NVIDIA Tesla M2050 GPU.

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。

↑