Fluid-flow solutions in PEPA to the state space explosion problem
- Resource Type
- Authors
- Hayden, R; Bradley, J
- Source
- London, UK
PASTA 2007, 6th Workshop on Process Algebra and Stochastically Timed Activities
- Subject
- Language
Achieving the appropriate performance requirements for computer-communication systems is as important as the correctness of the end-result. This is particularly difficult in the case of massively parallel computer systems such as the clusters of PCs behind the likes of Google and peer-to-peer filesharing networks such as Bittorrent. Measuring the performance of such systems using a mathematical model is invariably computationally intensive. Formal modelling techniques make possible the derivation of such performance measures but currently suffer from the state-space explosion problem, that is, models become intractably large even for systems of apparently modest complexity. This work develops a novel class of techniques aimed at addressing this problem by approximating a representation of massive state spaces as more computationally-tractable real variables (fluid-flow analysis).