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:
Mar. 26, 1991
Filed:
May. 23, 1988
Thomas C Ely, Bridgewater, NJ (US);
Bell Communications Research, Inc., Livingston, NJ (US);
Abstract
A multiprocessor data processing system is described in which the function of coordinating the actions of all of the processors of the multiprocessor system can be assigned to any one of the processors of the system. In order to ensure assignment of the coordinator function to one, and only one, of the processors, particularly in the presence of failures, a standard multiprocessor resource assignment procedure is used. To this end, the right to the assignment of the coordinator function is treated as an exclusively used system resource. Each CPU requests the coordinator function and the already available resource assignment procedure assigns the coordinator function to the requester at the top of a requestor queue. Exclusive assignment of the coordinator function is thereby accomplished regardless of the number, order or timing of component failures, and without the necessity of providing a separate coordination assignment facility.