Cache coherence directory eviction mechanisms in multiprocessor systems

摘要

Cache coherence directory eviction mechanisms are described for use in computer systems having a plurality of multiprocessor clusters. Interaction among the clusters is facilitated by a cache coherence controller in each cluster. A cache coherence directory is associated with each cache coherence controller identifying memory lines associated with the local cluster which are cached in remote clusters. A variety of techniques for managing eviction of entries in the cache coherence directory are provided.