Optimization of Data-Flow Computations Using Canonical TED Representation

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Hardware
Format: PDF
An efficient graph-based method to optimize polynomial expressions in data-flow computations is presented. The method is based on the factorization, common-subexpression elimination, and decomposition of algebraic expressions performed on a canonical Taylor expansion diagram representation. It targets the minimization of the latency and hardware cost of arithmetic operators in the scheduled implementation. The generated data-flow graphs are better suited for high-level synthesis than those extracted directly from the initial specification or obtained with traditional algebraic decomposition methods.
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