Block-wise Extraction of Rent's Exponents for an Extensible Processor

  • Authors:
  • Tapani Ahonen;Tero Nurmi;Jari Nurmi;Jouni Isoaho

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ISVLSI '03 Proceedings of the IEEE Computer Society Annual Symposium on VLSI (ISVLSI'03)
  • Year:
  • 2003

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Abstract

It is envisioned that future system-on-chip hardwareplatform designs will be based on reuse of a customizableprocessor core. Consequently, being able to quicklyevaluate the key performance metrics associated withspecific points in the design space becomes essential.Development of an early design phase performanceestimation method for logic blocks of an extensibleprocessor core is described. The processor blocks weresystematically synthesized with varying constraints forreference and the corresponding Rent's exponents wereextracted from the results. The impact of synthesis-originated design space discontinuities on the accuracy ofphysical performance estimation was evaluated byapplying linear regression on the resulting design points.