Symbolic evaluation of performance models for tradeoff visualization

  • Authors:
  • Jeffrey Walrath;Ranga Vemuri

  • Affiliations:
  • University of Cincinnati, Department of ECE & CS, Cincinnati, Ohio;University of Cincinnati, Department of ECE & CS, Cincinnati, Ohio

  • Venue:
  • DAC '97 Proceedings of the 34th annual Design Automation Conference
  • Year:
  • 1997

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Abstract

Often during the design process, it is necessary to analyzethe effects of tradeoff among various performance attributesof the design.Visual representations in the formof plots, graphs, and tables are typically used.These visualizationscan be generated using different applications suchas MatLab®, Mathematica®, Excel®, and so forth.Inorder to use these tools, performance equations for the designmust be rendered in an equational form with only afew variables, usually 2-3.However, performance modelsusually consist of a large number of attributes and evaluzationprocedures, typically written using the full power of aprogramming or hardware description language.We introducea symbolic evaluation procedure to simplify performancemodels.Given partial data, such evaluation yields a residualperformance model which is simpler than the original model.Symbolic evaluation can be effectively used to obtain residualperformance equations in terms of the variables whosetradeoff visualization is of interest to the user.