Enhancing compiler techniques for memory energy optimizations

Joseph Zambreno, Mahmut Taylan Kandemir, Alok Choudhary

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


As both chip densities and clock frequencies steadily rise in modern microprocessors, energy consumption is quickly joining performance as a key design constraint. Power issues are increasingly important in embedded systems, especially those found in portable devices. Much research has focused on the memory subsystems of these devices since they are a leading energy consumer. Compiler optimizations that are traditionally used to increase performance have shown much promise in also reducing cache energy consumption. In this paper we study the interaction between performance-oriented compiler optimizations and memory energy consumption and demonstrate that the best performance optimizations do not necessarily generate the best energy behavior in memory. We also show a simple metric that a power-optimizing compiler can utilize in order to capture the energy impact of potential optimizations. Next, we present heuristic algorithms that determine a suitable optimization strategy given a memory energy upper bound. Finally, we demonstrate that our strategies will gain even more importance in the future when leakage energy is expected to play an even larger role in the total energy consumption equation.

Original languageEnglish (US)
Title of host publicationEmbedded Software - 2nd International Conference, EMSOFT 2002, Proceedings
EditorsAlberto Sangiovanni-Vincentelli, Joseph Sifakis
PublisherSpringer Verlag
Number of pages18
ISBN (Print)9783540443070
StatePublished - 2002
Event2nd International Conference on Embedded Software, EMSOFT 2002 - Grenoble, France
Duration: Oct 7 2002Oct 9 2002

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other2nd International Conference on Embedded Software, EMSOFT 2002

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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