Reference distance as a metric for data locality

Changwoo Pyo, Gyungho Lee, Kyung Woo Lee, Hye Kyung Han

Research output: Contribution to conferencePaper

12 Citations (Scopus)

Abstract

We propose reference distance as a metric for data locality. Reference distance is the number of referenced memory blocks between two successive references to the same memory block. Effectiveness of program transformations for data locality can be evaluated by using reference distance. Our claim is demonstrated by showing the change in data locality and speedup of matrix multiplication due to loop interchange, loop tiling, and loop unrolling. We also present a result of an experiment using loop distribution and unrolling with respect to two subroutines of Perfect benchmark programs. Reference distance would serve as a useful tool for developing program transformation scheme for data locality optimization.

Original languageEnglish
Pages151-156
Number of pages6
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 2nd High Performance Computing on the Information Superhighway, HPC Asia'97 - Seoul, South Korea
Duration: 1997 Apr 281997 May 2

Other

OtherProceedings of the 1997 2nd High Performance Computing on the Information Superhighway, HPC Asia'97
CitySeoul, South Korea
Period97/4/2897/5/2

ASJC Scopus subject areas

  • Computer Science(all)

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