PROGRESSIVE ADAPTIVE ROUTING IN A DRAGONFLY PROCESSOR INTERCONNECT NETWORK

摘要

A multiprocessor computer system comprises a dragonfly processor interconnect network that comprises a plurality of processor nodes and a plurality of routers. The routers are operable to adaptively route data by selecting from among a plurality of network paths from a target node to a destination node in the dragonfly network based on one or more of network congestion information from neighboring routers and failed network link information from neighboring routers.

主权项

1. An apparatus comprising:
at least one first interface to couple to one or more processors in a plurality of processors; at least one second interface to couple to a plurality of routers in a particular group of routers, wherein the particular group is one of a plurality of groups in a dragonfly topology, each of the groups in the plurality of groups comprises a respective plurality of routers, and each router is to be connected to every other router in its group; at least one third interface to support an optical channel to couple the particular group to one other group in the plurality of groups, wherein each group in the plurality of groups is connected to each other group in the plurality of groups by an optical channel; and routing logic to use at least one of a plurality of routing tables for use in routing data between processors in the plurality of processors.