Low Cost Coherence Protocol for DSM Systems with Processor Consistency
[ 1 ] Instytut Informatyki (II), Wydział Informatyki i Zarządzania, Politechnika Poznańska | [ P ] employee
2003
paper
english
EN Modern Distributed Shared Memory (DSM) systems offer high speed application processing by allowing to use relaxed consistency models, such as processor consistency. Unfortunately, most of the existing coherence protocols implementing relaxed consistency in multiprocessors or loosely couples clusters use write-update strategy which incurs large communication overhead, and therefore is impractical for most distributed applications. This paper presents a new home-based coherence protocol for DSM systems with processor consistency. The protocol uses local invalidation paradigm introducing little overhead. No additional invalidation messages are required; all coherence information is piggybacked to update messages.
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