Patent ID: 7359932
Filing Date: 2008-04-15
Classification: G06F,H04L,H04W

Abstract:
1. A method of processor communication in a multiprocessor system containing a plurality of processor clusters interconnected by a network, said plurality of processor clusters including first and second processor clusters each containing multiple processors coupled by a cluster interconnect, the method comprising: providing at least one processor in each of the first and second processor clusters with a respective internal processor communication register (PCR) that provides the processor continuous access to information stored within its PCR, wherein each PCR includes multiple sectors that are each allocated for store access by only a respective associated processor cluster within the plurality of processor clusters; processors in the first and second processor clusters retrieving information from one or more sectors of their respective internal PCRs without physical memory access; and in response to receiving information transmitted over the network from the second processor cluster, a processor in the first processor cluster storing the received information in a sector of the PCR allocated for store access by the second processor cluster.