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    GPU图挖掘系统综述:概念、系统及优化

    A Survey for Graph Pattern Mining on GPUs: Concepts, Systems and Optimizations

    • 摘要: 图挖掘作为分析图数据性质特点的重要手段,已被广泛应用于知识图谱,金融反欺诈网络,生物信息学分析等诸多领域。然而,与传统的图分析算法相比,图挖掘算法具有更高的计算复杂度,这限制了现有方法分析大规模图数据的能力。GPU作为应用广泛的高性能加速器,在图挖掘系统研究中备受关注,并且其硬件性能也在不断快速提升。此类系统充分利用了GPU高并行性与高带宽的特点,以实现对大规模图数据的高效挖掘,其设计主要需应对三个方面的挑战:1)图数据存储与高效访问;2)图计算并行化;3)负载均衡。然而,当前相关综述多聚焦于特定图挖掘算法或是基于GPU的图计算系统,而对新兴的GPU图挖掘系统尚缺乏系统梳理。为此,本文针对该类系统展开综述分析:首先剖析图挖掘系统的硬件架构以及工作流程,随后探讨了图存储方面的优化策略,包括高效的图数据结构设计、中间结果存储优化以及图划分优化;然后梳理了计算优化技术,涵盖了集合求交并行化与搜索剪枝优化;其次分析了负载均衡技术,如工作窃取、滞后任务终止以及负载调度策略。最后,本文总结了该领域面临的挑战并展望未来研究方向,以期为后续相关研究与系统设计提供参考及支撑。

       

      Abstract: Graph pattern mining (GPM), as a crucial method for the analysis of the graph data, has been widely applied in various domains such as knowledge graphs, financial networks, and bioinformatics analysis. However, compared to traditional graph analysis algorithms, GPM algorithms exhibit higher computational complexity, which limits the capability of existing methods to handle large-scale graphs. As a widely adopted high-performance accelerator, the GPU has garnered significant attention in field of graph pattern mining. Moreover, the performance of the GPU hardware continues to advance rapidly. GPM systems leverage the high parallelism and high bandwidth of GPUs to enable efficient mining of large-scale graphs, while facing three main challenges: 1) efficient graph data storage and access, 2) parallelization of graph computation, and 3) load balancing. Nevertheless, existing surveys in related areas tend to focus either on specific GPM algorithms or on GPU-based graph computing systems, leaving a gap in the systematic review of emerging GPU-accelerated GPM systems. To address this gap, this paper provides a comprehensive survey of such systems. Firstly, we analyze their hardware architecture and workflow, followed by a discussion of graph storage optimizations, including efficient graph data structure design, intermediate result storage optimization, and graph partitioning. Secondly, we summarize graph computational optimization techniques, covering parallel set intersection and search pruning strategies. Thirdly, we examine load balancing methods such as work stealing, straggler abortion, and workload scheduling policies. Finally, this paper outlines the current challenges and suggests future research directions, with the aim of supporting and guiding subsequent studies and system designs.

       

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