Patent ID: 7395379

Claim:
A computer system, comprising: a home cluster including a first plurality of processors and a home cache coherence controller, the first plurality of processors and the home cache coherence controller interconnected in a point-to-point architecture; a request cluster including a second plurality of processors and a request cache coherence controller, the second plurality of processors and the request cache coherence controller interconnected in a point-to-point architecture; a remote cluster including a third plurality of processors and a remote cache coherence controller, the third plurality of processors and the remote cache coherence controller interconnected in a point-to-point architecture; wherein the home cache coherence controller is configured to send a probe to the remote cache coherence controller in the a-remote cluster upon receiving a cache access request from the request cache coherence controller in the a-request cluster, wherein the probe includes information directing to send the probe response corresponding to the request to the home cache coherence controller in the home cluster for combination into an aggregated response to be sent to the request cache coherence controller in the request cluster, wherein the aggregated response is generated after the home cache coherence controller receives and combines a plurality of probe responses from a plurality cache coherence controllers in a plurality of remote clusters.