Effects of Link Communication Time on Optimal Load Balancing in Tree Hierarchy Network Configurations
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概要
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In this paper, optimal static load balancing in a tree hierarchy network that consists of a set of heterogeneous host computers is considered. It is formulated as a nonlinear optimization problem. We study the effects of the link communication time on the optimal link flow rate (i.e., the rate at which a node forwards jobs to other nodes for remote processing), the optimal node load (i.e., the rate at which jobs are processed at a node), and the optimal mean response time, by parametric analysis. We show that the entire network can be divided into several independent sub-tree networks with respect to the link flow rates and node loads. We find that the communication time of a link has the effects only on the link flow rates and the loads on nodes that are in the same sub-tree network. The increase in the communication time of a link causes the decrease in the link flow rates of its descendant nodes, its ancestor nodes and itself, but causes the increase in the link flow rates of other nodes in the same sub-tree network. It also causes the increase in the loads of its descendant nodes and itself, but causes the decrease in the loads of other nodes in the same sub-tree network. In general, it causes the increase in the mean response time.
- 社団法人電子情報通信学会の論文
- 1993-02-25
著者
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Kameda Hisao
Institute Of Information Science And Electronics University Of Tsukuba
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Li Jie
Faculty of Electro-Communications, University of Electro-Communications
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Shimizu Kentaro
Faculty of Electro-Communications, University of Electro-Communications
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Shimizu Kentaro
Faculty Of Electro-communications University Of Electro-communications
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Li Jie
Faculty Of Electro-communications University Of Electro-communications
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