Impact of Parameter Variations on Circuits and Microarchitecture

  • Authors:
  • Osman S. Unsal;James W. Tschanz;Keith Bowman;Vivek De;Xavier Vera;Antonio Gonzalez;Oguz Ergin

  • Affiliations:
  • Barcelona Supercomputing Center;Circuits Research Lab, Intel Microprocessor Technology Labs;Circuits Research Lab, Intel Microprocessor Technology Labs;Circuits Research Lab, Intel Microprocessor Technology Labs;Intel Barcelona Research Center;Universitat Politècnica de Catalunya & Intel Barcelona Research Center;TOBB University of Economics and Technology, Ankara

  • Venue:
  • IEEE Micro
  • Year:
  • 2006

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Abstract

Parameter variations, which are increasing along with advances in process technologies, affect both timing and power. Variability must be considered at both the circuit and microarchitectural design levels to keep pace with performance scaling and to keep power consumption within reasonable limits. This article presents an overview of the main sources of variability and surveys variation-tolerant circuit and microarchitectural approaches.