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Conference Papers Year : 2009

An FPTAS for Interface Selection in the Periodic Resource Model

Nathan Fisher
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Abstract

The periodic resource model of Shin and Lee [19] provides a °exible, simple framework for design- ing compositional real-time systems. Each compo- nent in the periodic resource model has an inter- face which speci¯es the period and capacity of the resource used to schedule the component. Unfortu- nately, the best-known exact algorithms for determin- ing the interface parameters for a component in the periodic resource model potentially require exponential or pseudo-polynomial time. In this paper, we obtain an FPTAS for the problem of selecting an interface period given a capacity-determination algorithm. We also apply our approach to obtain an FPTAS for the problem of selecting both a period and capacity for components consisting of sporadic task systems. Our algorithms obtain interface parameters with interface bandwidth at most (1 + ²) times the optimal for any ² > 0.
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Dates and versions

inria-00441996 , version 1 (17-12-2009)

Identifiers

  • HAL Id : inria-00441996 , version 1

Cite

Nathan Fisher. An FPTAS for Interface Selection in the Periodic Resource Model. 17th International Conference on Real-Time and Network Systems, Oct 2009, Paris, France. pp.127-136. ⟨inria-00441996⟩

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