According to the present invention, methods and apparatus are provided for increasing the efficiency of data access in a multiple processor, multiple cluster system. Techniques are provided for speculatively probing a remote cluster from either a request cluster or a home cluster. A speculative probe...http://www.google.de/patents/US7103636?utm_source=gb-gplus-sharePatent US7103636 - Methods and apparatus for speculative probing of a remote cluster
