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:
Feb. 29, 2000
Filed:
Apr. 13, 1998
AT&T, New York, NY (US);
Abstract
An optimistic distributed simulation method applicable to event-driven simulation that requires only a single rollback announcement per straggler message, with no need for other simulation processes to announce their roll backs. The method is accomplished by maintaining transitive dependency information between the simulation processes in the form of a simulation vector. The present invention eliminates the need for output queues and also the possibility of multiple roll backs per simulation process and avalanche of anti-messages. Alternatives to reduce blocking and minimize the size of the simulation vectors are also disclosed thereby reducing the overhead requirements for systems with large numbers of logical processes.