The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 1995
Filed:
Sep. 08, 1993
Isam W Akkawi, Aptos, CA (US);
Scott H Hayashida, San Diego, CA (US);
Vivek Ladha, Santa Clara, CA (US);
John E Rudy, Poway, CA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A multiprocessor data processing system comprises a plurality of unsymmetrically connected data processing nodes; where the total number of nodes is more than 2.sup.n-1 and less than 2.sup.n, and n is an integer larger than two Each node has n input/output channels which respectively are channel(0), channel(1), channel(2), etc.; each node has a binary address b.sub.n-1. . . b.sub.1 b.sub.0 which runs consecutively from node to node; each pair of nodes whose binary addresses differ by only one binary bit b.sub.x are interconnected by a channel(x) to channel(x) connection; and, at least one pair of nodes whose binary addresses differ by two binary bits b.sub.x and b.sub.y are interconnected by a channel(x) to channel(y) connection, where x and y=0,1, . . . n-1. To establish a route from any one node to any other node, channels are selected which decrease the distance to the destination by two nodes or one node or maintain the same distance.