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:
Sep. 08, 1998
Filed:
Sep. 26, 1996
Scott Andrew Fagen, Poughkeepsie, NY (US);
Jeffrey Alan Frey, New Paltz, NY (US);
Carroll Eugene Fulkerson, Jr, Poughkeepsie, NY (US);
Mark Albert Kowalski, Austin, TX (US);
Benjamin John North, Ballsbridge, IE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for serializing a request for access to a resource originating from a requester in a system of a multisystem complex. Each system of the complex maintains local contention data indicating contention between requesters on that system for access to the resource, as well as a local contention summary summarizing the local contention data. A global manager for managing contention between the systems uses the local contention summaries to determine the existence of global contention for the resource. In response to a request for access to the resource originating from a requester on a system, the system determines whether the request requires an update of the local contention summary for the system. If the request does not require an update of the local contention summary, the system processes the request in accordance with the local contention data for the system. If the request does require an update of the local contention summary, the system notifying the global manager of the update and processing the request in accordance with the response received from the global manager.