Efficient and Scalable Cache Coherence for Chip Multiprocessors: Novel proposals for managing cache coherence in future many-core chip multiprocessors

Efficient and Scalable Cache Coherence for Chip Multiprocessors: Novel proposals for managing cache coherence in future many-core chip multiprocessors

von Alberto Ros
Taschenbuch - 9783838341521
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Beschreibung

Chip multiprocessors (CMPs) constitute the new trend for increasing the performance of future computers. In the near future, chips with tens of cores will become more popular. Nowadays, directory-based protocols constitute the best alternative to keep cache coherence in large-scale systems. Nevertheless, directory-based protocols have two important issues that prevent them from achieving better scalability: the directory memory overhead and the long cache miss latencies. This book focuses on these key issues. The first proposal is a scalable distributed directory organization that copes with the memory overhead of directory-based protocols. The second proposal presents the direct coherence protocols, which are aimed at avoiding the indirection problem of traditional directory-based protocols and, therefore, they improve applications' performance. Finally, a novel mapping policy for distributed caches is presented. This policy reduces the long access latency while lessening the number of off-chip accesses, leading to improvements in applications' execution time.

Details

Verlag LAP Lambert Acad. Publ.
Ersterscheinung Februar 2010
Maße 220 mm x 150 mm x 12 mm
Gewicht 308 Gramm
Format Taschenbuch
ISBN-13 9783838341521
Auflage Nicht bekannt
Seiten 196

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