Software Prepromotion for Non-Uniform Cache Architecture

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Executive Summary

As a solution to growing global wire delay, NonUniform Cache Architecture (NUCA) has already been a trend in large cache designs. The access time of NUCA is determined by the distance between the cache bank containing the required data and the processor. Thus, one of the important NUCA researches focuses on how to place data to be used into cache banks close to the processor. This paper proposes software prepromotion technique, which prepromote data using prepromotion instructions as similar as software prefetching does.

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