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:
Sep. 10, 2002

Filed:

Jul. 16, 1999
Applicant:
Inventors:

Mahesh N. Ganmukhi, Littleton, MA (US);

Jeffrey V. Hill, Santa Clara, CA (US);

Monica C. Wong-Chan, Cambridge, MA (US);

David C. Douglas, Concord, MA (US);

Assignee:

T. M. Patents, L.P., Boston, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract

A digital computer comprising a plurality of processors interconnected by a network for transferring messages among the processors. At least one processor generates messages of a configuration type. The network comprises a plurality of nodes interconnected in a tree pattern in a series of levels from a lower leaf level to an upper physical root level, with the leaf nodes connected to the processors. Each of the nodes includes a root flag that can be set or cleared in response to a message of the configuration type to establish the node as a logical root. For each node, if the node is a logical root it transfers messages received from a node at a lower level in the tree back down the tree, but if the node is not a logical root it transfers messages received at a lower level node to a higher level node.


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