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:
Aug. 10, 2010
Filed:
Sep. 17, 2004
Richard W. Adkisson, Dallas, TX (US);
Christopher Greer, Allen, TX (US);
Huai-ter Victor Chong, Plano, TX (US);
Richard W. Adkisson, Dallas, TX (US);
Christopher Greer, Allen, TX (US);
Huai-ter Victor Chong, Plano, TX (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of operating a central cache controller ('CCC') in a first cell of a multiprocessor system comprising multiple cells each including globally shared memory ('GSM'), wherein the first cell is disposed in a first partition and the CCC is connected to a plurality of CPUs of the first cell. In one embodiment, the method comprises, responsive to a new transaction request from one of the CPUs, logging the transaction in a transaction table; determining whether an identity marker in a timeout map corresponding to a cell to which the transaction was issued is set; and, responsive to the corresponding identity marker in the timeout map being set, immediately returning a special error to the one of the CPUs that requested the transaction.