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Abstract

This paper presents the most exhaustive study of synchronization to date. We span multiple layers, from hardware cache-coherence protocols up to high-level concurrent software. We do so on different types of architectures, from single-socket - uniform and non-uniform - to multi-socket - directory and broadcast-based - many-cores. We draw a set of observations that, roughly speaking, imply that scalability of synchronization is mainly a property of the hardware. © 2013 ACM.

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