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Performance Evaluation for a Multistage Interconnection Network with Buffered $a{\times}a$ Switches under Hot-spot Environment  

Kim, Jung-Yoon (울산대학교 전기전자정보시스템공학부)
Shin, Tae-Zi (울산대학교 전기전자정보시스템공학부)
Yang, Myung-Kook (울산대학교 전기전자정보시스템공학부)
Abstract
In this paper, a performance evaluation model of the Multistage Interconnection Network(MIN) with the multiple-buffered crossbar switches under Hot-spot environment is proposed and examined. Buffered switch technique is well known to solve the data collision problem of the MIN. The proposed evaluation model is developed by investigating the transfer patterns of data packets in a switch. The performance of the multiple-buffered $a{\times}a$ crossbar switch is analyzed. Steady state probability concept is used to simplify the analyzing processes. Two important parameters of the network performance, throughput and delay, are then evaluated. To validate the proposed analysis model, the simulation is carried out on a Baseline network that uses the multiple buffered crossbar switches. Less than 2% differences between analysis and simulation results are observed. It is also shown that the network performance is significantly improved when the small number of buffer spaces is given. However, the throughput elevation is getting reduced and network delay becomes increasing as more buffer spaces are added in a switch.
Keywords
Hot-Spot; crossbar switch; buffer; throughput; delay; analysis; simulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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