NDLI: A generalized scheduling approach for dynamic dataflow applications

Content Provider	IEEE Xplore Digital Library
Author	Plishker, W. Sane, N. Bhattacharyya, S.S.
Copyright Year	2009
Description	Author affiliation: Electrical and Computer Engineering Department, University of Maryland, College Park, USA (Plishker, W.; Sane, N.; Bhattacharyya, S.S.)
Abstract	For a number of years, dataflow concepts have provided designers of digital signal processing systems with environments capable of expressing high-level software architectures as well as low-level, performance-oriented kernels. But analysis of system-level trade-offs has been inhibited by the diversity of models and the dynamic nature of modern dataflow applications. To facilitate design space exploration for software implementations of heterogeneous dataflow applications, developers need tools capable of deeply analyzing and optimizing the application. To this end, we present a new scheduling approach that leverages a recently proposed general model of dynamic dataflow called core functional dataflow (CFDF). CFDF supports high-level application descriptions with multiple models of dataflow by structuring actors with sets of modes that represent fixed behaviors. In this work we show that by decomposing a dynamic dataflow graph as directed by its modes, we can derive a set of static dataflow graphs that interact dynamically. This enables designers to readily experiment with existing dataflow model specific scheduling techniques to all or some parts of the application while applying custom schedulers to others. We demonstrate this generalized dataflow scheduling method on dynamic mixed-model applications and show that run-time and buffer sizes significantly improve compared to a baseline dynamic dataflow scheduler and simulator.
Starting Page	111
Ending Page	116
File Size	192498
Page Count	6
File Format	PDF
ISBN	9781424437818
ISSN	15301591
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-20
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	European Design Automation Association (EDAA)
Subject Keyword	Dynamic scheduling Application software Signal design Digital signal processing Software architecture Kernel Space exploration Software tools Design optimization Runtime
Content Type	Text
Resource Type	Article

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