G - Physics – 06 – F
Patent
G - Physics
06
F
354/233
G06F 13/14 (2006.01) G06F 13/28 (2006.01) G06F 13/38 (2006.01) G06F 15/173 (2006.01) H04L 12/56 (2006.01) G06F 11/00 (2006.01) G06F 11/14 (2006.01) G11C 29/00 (2006.01)
Patent
CA 1263760
APPARATUS FOR MULTIPROCESSOR COMMUNICATION ABSTRACT A communication network formed by a plurality of communication processors which are connected together in such a way that messages can be sent efficiently between any two processors in a multiprocessor data processing system is disclosed. The data processing system consists of a plurality of data processors. Each data processor is coupled to a communication processor which is responsible for sending and receiving messages from other communication processors which are coupled to other data processors. The communication processors are organized into a two dimensional hexagonal array. Each communication processor communicates with the 6 communication processors adjacent to it through 6 ports. Each such port couples the communication processor in question to a corresponding port in one of the 6 communication processors adjacent to it. When a given data processor wishes to send a message to another data processor in the multiprocessor system, it transfers that message to the communication processor coupled to it with information specifying the final destination of the message. The communication processor sends the message through the appropriate port to an adjacent communication processor. If the final destination of the message is the data processor coupled to the adjacent communication processor, that communication processor will cause the message to be stored in said data processor's memory. If the destination is not the data processor coupled to the adjacent communication processor to which the message was sent, the adjacent communication processor will relay the message to a third communication processor which is adjacent to it. The message routing algorithm used by each of communication processors automatically reroutes messages around communication bottlenecks created by a malfunctioning communication processor or by a local communication overload.
518736
Davis Alan L.
Robison Shane V.
Stevens Kenneth S.
Macrae & Co.
Schlumberger Technology Corporation
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