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Fast synchronization on scalable cache-coherent multiprocessors using hybrid primitives

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2 Author(s)
D. S. Nikolopoulos ; Dept. of Comput. Eng. & Inf., Patras Univ., Greece ; T. S. Papatheodorou

This paper presents a new methodology for implementing fast synchronization on scalable cache-coherent multiprocessors, through the use of hybrid primitives. Hybrid primitives leverage commodity hardware to speed-up the execution of the atomic remote Read-Modify-Write (RMW) instructions employed in synchronization algorithms to resolve contending processors, while exploiting the caches to reduce network traffic during the waiting and release phases of a synchronization primitive. We present a systematic methodology for transforming any synchronization primitive that uses RMW instructions into a hybrid one. We then provide experimental evidence on the effectiveness of using hybrid primitives in the implementation of spin locks, barriers and lock-free queues, in microbenchmarks and parallel applications on a SGI Origin 2000

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Parallel and Distributed Processing Symposium, 2000. IPDPS 2000. Proceedings. 14th International

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