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This paper proposes a new speculative coherencescheme, SCDS, for hardware distributed shared memory systemsto reduce the overhead of coherence action in directory-basedcache-coherence protocol. SCDS has two main features,predicting accurate timing of speculative coherence withsynchronization information and detecting write pattern(migratory and non-migratory) for exclusive blocks' speculativecoherence action. In our simulation, SCDS outperforms existingschemes (DSI and LTP) for well-synchronized applications.
Kue-Hwan Sihn, Joonwon Lee, Jung-Wan Jung-Wan Cho, "A Speculative Coherence Scheme using Decoupling Synchronization for Multiprocessor Systems", IEEE Computer Architecture Letters, vol. 2, no. , pp. 1, January-December 2003, doi:10.1109/L-CA.2003.1
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