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.

Date of Patent:
Nov. 18, 1997

Filed:

Jul. 18, 1996
Applicant:
Inventors:

Kenichi Hayashi, Kawasaki, JP;

Isaac Liu Chuang, Prospect, KY (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395311 ; 395800 ; 3642294 ; 3642293 ; 364240 ; 364D / ;
Abstract

An n-dimensional torus network-based parallel computer, n being an integer greater than 1, is folded n times with the results of folding embedded in an n-dimensional layer for connection with an interleave connecting unit. Four-terminal switches or switch units are placed at the folding positions. The switching units are changed so that any two of the four terminals are linked together. This permits the torus network to be split into subtorus networks or subtori. The subtori can be integrated into the original torus network whereby the reconfiguration of the torus network is realized. The switches are changed over by the switching unit in either a static mode or a dynamic mode. In the static mode, only the system side is allowed to change over the switches. In the dynamic mode, users are allowed to transmit a message to cause the switching unit to change over the switches. By connecting a communications path between the switches, the communication distance between distant processor elements can be reduced, permitting high-speed communication. This permits high-speed global calculations and broadcast processing.


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