Exploiting bank locality in multi-bank memories

U. Sezer, G. Chen, M. Kandemir, H. Saputra, M. J. Irwin

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

4 Scopus citations

Abstract

Bank locality can be defined as localizing the number of load/store accesses to a small set of memory banks at a given time. An optimizing compiler can modify a given input code to improve its bank locality. There are several practical advantages of enhancing bank locality, the most important of which is reduced memory energy consumption. Recent trends indicate that energy consumption is fast becoming a first-order design parameter as processor-based systems continue to become more complex and multi-functional. Off-chip memory energy consumption in particular can be a limiting factor in many embedded system designs. This paper presents a novel compiler-based strategy for maximizing the benefits of low-power operating modes available in some recent DRAM-based multi-bank memory systems. In this strategy, the compiler uses linear algebra to represent and optimize bank locality in a mathematical framework. We discuss that exploiting bank locality can be cast as loop (iteration space) and array layout (data space) transformations. We also present experimental data showing the effectiveness of our optimization strategy. Our results show that exploiting bank locality can result in large energy savings.

Original languageEnglish (US)
Title of host publicationCASES 2003
Subtitle of host publicationInternational Conference on Compilers, Architecture, and Synthesis for Embedded Systems
Pages287-297
Number of pages11
StatePublished - Dec 1 2003
EventCASES 2003: International Conference on Compilers, Architecture, and Synthesis for Embedded Systems - San Jose, CA, United States
Duration: Oct 30 2003Nov 1 2003

Publication series

NameCASES 2003: International Conference on Compilers, Architecture, and Synthesis for Embedded Systems

Other

OtherCASES 2003: International Conference on Compilers, Architecture, and Synthesis for Embedded Systems
CountryUnited States
CitySan Jose, CA
Period10/30/0311/1/03

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Exploiting bank locality in multi-bank memories'. Together they form a unique fingerprint.

  • Cite this

    Sezer, U., Chen, G., Kandemir, M., Saputra, H., & Irwin, M. J. (2003). Exploiting bank locality in multi-bank memories. In CASES 2003: International Conference on Compilers, Architecture, and Synthesis for Embedded Systems (pp. 287-297). (CASES 2003: International Conference on Compilers, Architecture, and Synthesis for Embedded Systems).