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:
Dec. 30, 2014
Filed:
Dec. 28, 2011
William E. Atherton, Hillsborough, NC (US);
Marcus A. Baker, Apex, NC (US);
Sreekanth Konireddygari, Morrisville, NC (US);
Jeffrey B. Williams, Raleigh, NC (US);
William E. Atherton, Hillsborough, NC (US);
Marcus A. Baker, Apex, NC (US);
Sreekanth Konireddygari, Morrisville, NC (US);
Jeffrey B. Williams, Raleigh, NC (US);
Lenovo Enterprise Solutions (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Methods, apparatuses, and computer program products of extending cache in a multi-processor computer are provided. Embodiments include detecting, by a donor processor, nonuse of a donor processor's cache; broadcasting to one or more processors in the multi-processor computer, by the donor processor, a donor-ready message indicating the donor processor's cache is available for ownership transferment; receiving from a first requesting processor, by the donor processor, a first ownership-request message requesting ownership of the donor processor's cache by the first requesting processor; transmitting to the first requesting processor, by the donor processor, an ownership-grant message indicating an intention of the donor processor to transfer ownership of the donor processor's cache to the first requesting processor; and receiving from the first requesting processor, by the donor processor, an ownership-claim message indicating that the first requesting processor intends to claim ownership of the donor processor's cache.