Patent ID: 6766360
Filing Date: 2004-07-20
Classification: G06F

Abstract:
A method for manipulating requests for shared data in a computer network having a plurality of groups of nodes comprising:receiving a request for shared data from a node within a first group wherein each group of the plurality has a plurality of nodes, each node having a plurality of processors; issuing simultaneously a first request for the same shared data to a first remote access cache (RAC) for the first group for storing only clean remote data marked Shared indicating read-only access wherein the clean remote data is received from another group in the computer network and a directory lookup request to another group for the same shared data; and responsive to the first remote access cache having the data cached supplying a copy of the requested data from the first remote access cache to the requesting node within the first group, and responsive to receiving the requested data from the other group that received the directory lookup request, discarding the requested data from the other group.