Data Reuse Analysis Technique for Software-Controlled Memory Hierarchies

  • Authors:
  • Ilya Issenin;Erik Brockmeyer;Miguel Miranda;Nikil Dutt

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe - Volume 1
  • Year:
  • 2004

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Abstract

In multimedia and other streaming applications a significant portion of energy is spent on data transfers. Exploiting data reuse opportunities in the application, we can reduce this energy by making copies of frequently used data in a small local memory and replacing speed and power inefficient transfers from main off-chip memory by more efficient local data transfers. In this paper we present an automated approach for analyzing these opportunities in a program that allows modification of the program to use custom scratch pad memory configurations comprising a hierarchical set of buffers for local storage of frequently reused data. Using our approach we are able to reduce energy consumption of the memory subsystem when using ascratch pad memory by a factor of two on average compared to a cache of the same size.