Transaction-Oriented Simulation In Ad Hoc Grids: Design and Experience - Computer Science > Distributed, Parallel, and Cluster ComputingReportar como inadecuado




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Abstract: In this paper we analyse the requirements of performing paralleltransaction-oriented simulations within loosely coupled systems like ad hocgrids. We focus especially on the space-parallel approach to parallelsimulation and on discrete event synchronisation algorithms that are suitablefor transaction-oriented simulation and the target environment of ad hoc grids.To demonstrate our findings, a Java-based parallel simulator for thetransaction-oriented language GPSS-H is implemented on the basis of the mostpromising shock-resistant Time Warp SRTW synchronisation algorithm and usingthe grid framework ProActive. The analysis of our parallel simulator, based onexperiments using the Grid5000 platform, shows that the SRTW algorithm cansuccessfully reduce the number of rolled back transaction moves but it alsoreveals circumstances in which the SRTW algorithm can be outperformed by thenormal Time Warp algorithm. Finally, possible improvements to the SRTWalgorithm are proposed in order to avoid such problems.



Autor: Gerald Krafft, Vladimir Getov

Fuente: https://arxiv.org/







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