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Parallel Louvain Community Detection Algorithm Based on Dynamic Thread Assignment on Graphic Processing Unit | ||
Journal of Electrical and Computer Engineering Innovations (JECEI) | ||
مقاله 7، دوره 10، شماره 1، فروردین 2022، صفحه 75-88 اصل مقاله (1.37 M) | ||
نوع مقاله: Original Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jecei.2021.7771.432 | ||
نویسندگان | ||
M. Mohammadi1؛ M. Fazlali* 2؛ M. Hosseinzadeh3 | ||
1Department of Computer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
2Department of Computer and Data Sciences, Faculty of Mathematical Sciences, Shahid Beheshti University, Tehran, Iran | ||
3Mental Health Research Center, Psychosocial Health Research Institute, Iran University of Medical Sciences, Tehran, Iran | ||
تاریخ دریافت: 18 بهمن 1399، تاریخ بازنگری: 23 فروردین 1400، تاریخ پذیرش: 27 خرداد 1400 | ||
چکیده | ||
Background and Objectives: Louvain is a time-consuming community detection algorithm especially in large-scale networks. Using Graphic Processing Unit (GPU) in order to calculate modularity sigma, which is a major processing section in Louvain algorithm, can reduce algorithm execution time and make it practical for large-scale networks. Methods: The proposed algorithm Dynamic CUDA Louvain Method (DCLM) blocks hardware threads dynamically on cores inside GPU. By considering the properties of GPU, this algorithm allocates the maximal number of processing cores to each Stream Multi-Processor (SM) as number of threads in a block. If the number of nodes in the graph is smaller than all physical cores on GPU, number of threads per block Is equal to the ratio number of graph nodes over the number of SMs. Results: The implementation results demonstrated that the proposed algorithm is able to decrease the run time by 15% in comparison with the best past method in the large-scale graph. Conclusion: We have introduced DCLM algorithm based on GPU that accelerates Louvain community detection algorithm. Dynamic allocation of threads to each block has a significant effect on the reduction of algorithm execution time. However, incrementing the number of threads per block alone does not result to acceleration the speed of calculations. | ||
کلیدواژهها | ||
Louvain Algorithm؛ Community Detection؛ Modularity؛ Hardware Thread | ||
مراجع | ||
[37] J.O. Palacio-Niño, F. Berzal "On the use of local structural properties for improving the efficiency of hierarchical community detection methods," arXiv preprint arXiv:2009.06798, 2020.
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