LCS Publication Details
Publication Title: LIMITLESS DIRECTORIES: A SCALABLE CACHE COHERENCE SCHEME
Publication Author: Chaiken, David
Additional Authors: Kubiatowicz, John and Agarwal, Anant
LCS Document Number: MIT-LCS-TM-448
Publication Date: 6-1-1991
LCS Group: No Group Specified
Additional URL: No URL Given
Abstract:
Caches enhance the performance of multiprocessors by reducing network traffic and average memory access latency. However, cache-based systems must address the problem of cache coherence. We propose the LimitLESS directory protocol to solve this problem. The LimitLESS scheme uses a combination of hardware and software techniques to realize the performance of full-map directory with the memory overhead of limited directory. This protocol is supported by Alewife, a large-scale multiprocessor. We describe the architectural interfaces needed to implement the LimitLESS directory, and evaluate its performance though simulations of the Alewife machine.
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