Sicortex, Inc.

Washington Taylor

Lawrence Colm Stewart

Judson S Leonard

Matthew H Reilly

Computer system and method using a Kautz-like digraph to interconnect computer nodes and having control back channel between nodes. A multinode computing system includes a large plurality of computing nodes interconnected via a Kautz topology having order O, diameter n, and degree k. The order equals (k+1)k; The data interconnections from a node x to a node y in the topology satisfy the relationship y=(&#x2212;x*k&#x2212;j) mod O, where 1&#x2266;j&#x2266;k; and each x,y pair includes a unidirectional control link from node y to node x to convey flow control and error information from a receiving node y to a transmitting node x.

Computer system and method using a kautz-like digraph to interconnect computer nodes and having control back channel between nodes

Computer systems and methods using efficient module and backplane tiling to interconnect computer nodes via a Kautz-like digraph. A multinode computing system includes a large plurality of computing nodes interconnected via a Kautz topology having order O, diameter n, and degree k. The order equals (k+1)k. The interconnections from a node x to a node y in the topology satisfy the relationship y=(&#x2212;x*k&#x2212;j) mod O, where 1&#x2266;j&#x2266;k, and the computing nodes are arranged onto a plurality of modules. Each module has an equal plurality of computing nodes on it. A majority of the inter-node connections are contained on the plurality of modules and a minority of the inter-node connections are inter-module connections. Inter-module connections are routed among modules in parallel on an inter-module connection plane.

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Cambridge, MA, United States of America

Washington Taylor