Combining explicit admission control and congestion control for predictable data transfers in grids

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• 作者：Kashif Munir^a ; ^{Kashif.Munir@nu.edu.pk}  ; [Author Vitae] ; Michael Welzl^b  ; [Author Vitae] ; Marcelo Pasin^c  ; [Author Vitae] ; Pascale Primet Vicat-Blanc^d  ; [Author Vitae]
• 关键词：Grid ; QoS ; TCP ; Resource broker ; Advance reservation
• 刊名：Future Generation Computer Systems
• 出版年：2012
• 期刊代码：54_0167739x
• 类别：cp
• 出版时间：July, 2012
• 卷：28
• 期：7
• 页码：1121-1132
• 文件大小：1227 K

摘要

To improve the Grid infrastructure鈥檚 efficiency, the co-reservation of distributed resources is often required. Therefore, Grid applications need to move large amounts of data between these resources within deterministic time frames. In most cases it is possible to specify the volume and the deadline in advance. This paper proposes an approach for data-movement management and bandwidth reservation in Grid, which provides a high acceptance probability of flows in the network while maintaining efficient network-resource utilization. To achieve this, our proposal combines explicit admission control and high-speed transport protocols to enable an opportunistic sharing of the capacity by flows having heterogeneous bandwidth and delay requirements. We formulate the problem and discuss several objective functions. Then we present different heuristics and evaluate them according to the request鈥檚 acceptance rate and the network鈥檚 utilization metrics. Our simulations include all the communication and computation overheads which are involved in such data transfers.