Case studies in performance modelling and simulation of distributed information systems

Delaitre, Thierry, Poslad, S and Winter, Stephen (1997) Case studies in performance modelling and simulation of distributed information systems. In: Proc.14th IEE UK Teletraffic Symposium on Performance Engineering in Information Systems, 22-26 March 1997, UMIST, Manchester. IEE Electronics and Communications Division.

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This paper has described the simulation model of the EDPEPPS environment. The modularity of the model allows a re-configuration of the parallel platform (e.g. the resource layer can be extended to model other networks such as Fast Ethernet of FDDI). The toolset supports graphical design, performance prediction through modelling and simulation, and visualisation of predicted program behaviour. The success of the toolset depends mainly on the accuracy to predict performance. Therefore, the user will be able to compare design alternatives. The validation of the entire model is based on the COMMS1 benchmark and the parallelisation of the H.261 algorithm. The parallel platform parameters have been obtained by measuring the real system. Currently, there is a tool which supports the automatic evaluation of these parameters. A useful feature is to predict performance on hypothetic machines where resources can be increased as well as to perform scalability analysis. During a real execution, it is difficult to control the external workload affecting the performance of a parallel application. In the simulation context, external workload generated by other applications requiring computation power or communication facility can be controlled.

Item Type: Book Section
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 22 Sep 2011 10:43
Last Modified: 22 Sep 2011 10:43

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