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Analyzing performance of sequencing mechanisms for simple layered task systems
Conference proceeding

Analyzing performance of sequencing mechanisms for simple layered task systems

A.B Tayyab and J.G Kuhl
Proceedings Sixth International Parallel Processing Symposium, pp.173-178
1992
DOI: 10.1109/IPPS.1992.223051

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Abstract

Considers the problem of sequencing a set of parallel activities in the presence of nonzero overheads. Mechanisms for sequence control may range from explicit inter-task synchronization to more restrictive mechanisms such as blocking barriers. It is highly desirable to be able to base the choice of a sequence control mechanism for a parallel algorithm upon specific characteristics of the algorithm's structure and the underlying architecture. The paper presents approximate models for simple layered task systems that can predict overall performance and provide a useful understanding of key performance parameters and tradeoffs. The analytic results are compared with simulation to demonstrate their accuracy. Some simple applications of the model are presented that demonstrate non-intuitive behavior of layered graphs with inter-task versus barrier-based sequencing.< >
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