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I/O routing in a multidimensional torus network

United States Patent

9,565,094
February 7, 2017
View the Complete Patent at the US Patent & Trademark Office
A method, system and computer program product are disclosed for routing data packet in a computing system comprising a multidimensional torus compute node network including a multitude of compute nodes, and an I/O node network including a plurality of I/O nodes. In one embodiment, the method comprises assigning to each of the data packets a destination address identifying one of the compute nodes; providing each of the data packets with a toio value; routing the data packets through the compute node network to the destination addresses of the data packets; and when each of the data packets reaches the destination address assigned to said each data packet, routing said each data packet to one of the I/O nodes if the toio value of said each data packet is a specified value. In one embodiment, each of the data packets is also provided with an ioreturn value used to route the data packets through the compute node network.
Chen; Dong (Yorktown Heights, NY), Eisley; Noel A. (Yorktown Heights, NY), Heidelberger; Philip (Yorktown Heights, NY)
International Business Machines Corporation (Armonk, NY)
12/ 697,175
20110173349
January 29, 2010
GOVERNMENT CONTRACT This invention was made with government support under Contract No. B554331 awarded by the Department of Energy. The Government has certain rights in this invention.