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Optimistic parallel simulation of a large-scale view storage system

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4 Author(s)
G. Yaun ; Dept. of Comput. Sci., Rensselaer Polytech. Inst., Troy, NY, USA ; C. D. Carothers ; S. Adali ; D. Spooner

In this paper we present the design and implementation of a complex view storage system model that is suitable for execution on a optimistic parallel simulation engine. What is unique over other optimistic systems is that reverse computation as opposed to state-saving is used to support the rollback mechanism. In this model, a hierarchy of view storage servers are connected to an array of client-side local disks. The term view refers to the output or result of a query made on the part of an application that is executing on a client machine. These queries can to be arbitrarily complex and done using SQL. In our performance study of this model, we find that speedups range from 1.5 to over 5 on 4 processors. Super-linear speedups are attributed to a slow memory subsystem and the increased availability of level-1 and level-2 cache when moving to a larger number of processors

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Simulation Conference, 2001. Proceedings of the Winter  (Volume:2 )

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