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Fractional rate dataflow model and efficient code synthesis for multimedia applications

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Authors
Oh, Hyunok; Ha, Soonhoi
Issue Date
2002-07
Publisher
Association for Computing Machinery (ACM)
Citation
ACM SIGPLAN Notices, Vol. 37, No. 7, pp 12-17
Keywords
Fractional rateSDFCSDFmemorymultimedia
Abstract
Automatic code synthesis from dataflow
program graphs is a promising high-level design methodology for
rapid prototyping of multimedia embedded systems. Memory
efficient code synthesis from dataflow models has been an active
research subject to reduce the gap in terms of memory
requirements between the synthesized code and the handoptimized
code. However, existent dataflow models have inherent
difficulty of efficiently handling data structures. In this paper, we
propose a new dataflow extension called fractional rate dataflow
(FRDF) in which fractional number of samples can be produced
and consumed. In the proposed FRDF model, a constituent data
type is considered as a fraction of the composite data type.
Existent integer rate dataflow models can be easily extended to
incorporate the fractional rates without loosing analytical
properties. In this paper, the SDF model is extended to include
FRDF, which can reduce the buffer memory requirements
significantly, up to 70%, for some multimedia applications.
ISSN
0362-1340
Language
English
URI
https://hdl.handle.net/10371/7963
DOI
https://doi.org/10.1145/513829.513834
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Computer Science and Engineering (컴퓨터공학부)Journal Papers (저널논문_컴퓨터공학부)
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