电子与信息学报
電子與信息學報
전자여신식학보
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY
2013年
9期
2247-2253
,共7页
分布式计算%异构网络%动态负载均衡%收敛性分析
分佈式計算%異構網絡%動態負載均衡%收斂性分析
분포식계산%이구망락%동태부재균형%수렴성분석
Distributed computing%Heterogeneous networks%Dynamic load balancing%Converge analysis
资源共享是分布式计算的核心问题,平衡负载是实现资源共享的基本手段。现有的负载均衡算法多局限于同构网络,伴随计算终端多元化的发展趋势,面向异构网络的负载均衡需求也不断增加。该文基于经典的扩散算法,提出一种适用于异构网络环境的新的动态负载均衡算法,并通过严格的数学方法证明了算法中各结点可收敛于平衡点。实验结果表明,该算法的收敛性能优于Rotaru 等人(2004)提出的GDA算法,并且对于网状网络、星型网络和花环网络等经典结构都有良好的收敛性,即便在随机生成的网络结构中,仍然保持了较快的收敛速度。
資源共享是分佈式計算的覈心問題,平衡負載是實現資源共享的基本手段。現有的負載均衡算法多跼限于同構網絡,伴隨計算終耑多元化的髮展趨勢,麵嚮異構網絡的負載均衡需求也不斷增加。該文基于經典的擴散算法,提齣一種適用于異構網絡環境的新的動態負載均衡算法,併通過嚴格的數學方法證明瞭算法中各結點可收斂于平衡點。實驗結果錶明,該算法的收斂性能優于Rotaru 等人(2004)提齣的GDA算法,併且對于網狀網絡、星型網絡和花環網絡等經典結構都有良好的收斂性,即便在隨機生成的網絡結構中,仍然保持瞭較快的收斂速度。
자원공향시분포식계산적핵심문제,평형부재시실현자원공향적기본수단。현유적부재균형산법다국한우동구망락,반수계산종단다원화적발전추세,면향이구망락적부재균형수구야불단증가。해문기우경전적확산산법,제출일충괄용우이구망락배경적신적동태부재균형산법,병통과엄격적수학방법증명료산법중각결점가수렴우평형점。실험결과표명,해산법적수렴성능우우Rotaru 등인(2004)제출적GDA산법,병차대우망상망락、성형망락화화배망락등경전결구도유량호적수렴성,즉편재수궤생성적망락결구중,잉연보지료교쾌적수렴속도。
Resource sharing is one of the key issues of distributed computing, and load balancing is the fundamental approach to sharing scarce resource in a distributed computing system. However, the existing load balancing methods are mostly confined to the homogeneous networks. With the diversity of the computing terminals, there is increasing requirement for the study of load balancing toward the heterogeneous networks. In this paper, a diffusion-based dynamic load balancing algorithm is proposed for the heterogeneous networks and it is proved with mathematical strictness that all nodes will converge to the excepted balanced point. The numerical results show that the algorithm is better than the GDA algorithm proposed by Rotaru et al. (2004) and has ideal convergence property over many network topologies including Mesh, Star and Tours etc. And it converges rather fast even in a randomly generated network.