A system and method is disclosed to maintain the coherence of shared data in cache and memory contained in the nodes of a multiprocessing computer system. The distributed multiprocessing computer system contains a number of processors each connected to main memory. A processor in the distributed multiprocessing...http://www.google.fr/patents/US6633960?utm_source=gb-gplus-shareBrevet US6633960 - Scalable directory based cache coherence protocol
