Patent ID: 6557069
Filing Date: 2003-04-29
Classification: G06F

Abstract:
A multi-processor computer system, comprising:a plurality of nodes, each node containing at least one device for transmitting bus communications, at least some of said devices for transmitting bus communications being processors; a plurality of first unidirectional command links, each first link communicating from at least one of said devices to an outbound command repeater for the same node as the device; a plurality of second unidirectional command links, each second link being associated with a respective node, each second link communicating from the outbound repeater of the node with which it is associated to a central command repeater unit; a plurality of third unidirectional command links, each third link being associated with a respective node, each third link communicating from the central command repeater unit to an inbound command repeater of the node with which it is associated; and a plurality of fourth unidirectional command links, each fourth link communicating from an inbound command repeater to at least one device in the same node as the inbound command repeater; wherein a bus command is transmitted from an originating device on a corresponding first link of said plurality of first links to said outbound command repeater, is repeated from said outbound command repeater on a corresponding second link of said plurality of second links to said central command repeater, is repeated from said central command repeater on each said third link simultaneously to each said inbound command repeater, and is repeated on each said fourth link simultaneously to each said device.