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:
Jun. 14, 2022
Filed:
Aug. 14, 2020
Applicant:
Alibaba Group Holding Limited, Grand Cayman, KY;
Inventors:
Lide Duan, Sunnyvale, CA (US);
Hongyu Liu, Sunnyvale, CA (US);
Hongzhong Zheng, Sunnyvale, CA (US);
Yen-Kuang Chen, Palo Alto, CA (US);
Assignee:
Alibaba Group Holding Limited, Grand Cayman, KY;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/0891 (2016.01); G06F 12/0817 (2016.01); G06F 13/42 (2006.01); G06F 13/40 (2006.01); G06F 9/54 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0891 (2013.01); G06F 9/546 (2013.01); G06F 12/0828 (2013.01); G06F 13/409 (2013.01); G06F 13/4068 (2013.01); G06F 13/4221 (2013.01); G06F 2212/7209 (2013.01); G06F 2213/0026 (2013.01);
Abstract
The devices within an inter-device processing system maintain data coherency in the last level caches of the system as a cache line of data is shared between the devices by utilizing a directory in one of the devices that tracks the coherency protocol states of the memory addresses in the last level caches of the system.