Compiler-directed cache coherence scheme with improved intertask locality

Lynn Choi, Pen Chung Yew

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations

Abstract

In this paper, we introduce a compiler-directed coherence scheme which can exploit most of the temporal and spatial locality across task boundaries. It requires only an extended tag field per cache word, one modified memory access instruction, and a counter called the epoch counter in each processor. By using the epoch counter as a system-wide version number, the scheme simplifies the cache hardware of previous version control [5] or timestamp-based schemes [12], but still exploits most of the temporal and spatial locality across task boundaries. We present a compiler algorithm to generate the appropriate memory access instructions for the proposed scheme. The algorithm is based on a data flow analysis technique. It identifies potential stale references by examining memory reference patterns in a source program.

Original languageEnglish (US)
Pages (from-to)773-782
Number of pages10
JournalProceedings of the ACM/IEEE Supercomputing Conference
DOIs
StatePublished - Jan 1 1994
EventProceedings of the 1994 Supercomputing Conference - Washington, DC, USA
Duration: Nov 14 1994Nov 18 1994

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