The system and method for performing an update operation on the sharing list in a multi-node SCI-based system involves issuing an update command from a first node in the list to the remaining nodes in the sharing list, however the first node maintains its position at a head position in the sharing list....http://www.google.ca/patents/US6052761?utm_source=gb-gplus-sharePatent US6052761 - Increment update in an SCI based system