Method and the system for cash coherence in the DSM multiprocessor system which does not accompany the increase of joint ownership vector

摘要

This invention has designated the method and the system in order to keep cash coherence dispersion joint ownership memory (DSM) multiprocessor system (600) in, as purpose. This method is started by being received with the reception node, joint ownership access request (620 and 626). Here, the reception node is the optional node which at least possesses one which has the information which we would like to access processor storage. It judges whether next, the joint ownership access request, the local node (611) from the or remote node which occurs (613) from it occurs. When joint ownership access request occurs from the local node, joint ownership access request is processed as joint ownership access request. Joint ownership access request is approved, joint ownership vector is formed or is renewed and is reflected on the joint ownership local node.