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:
Jul. 06, 2021
Filed:
Mar. 22, 2019
Nec Corporation, Tokyo, JP;
Yohei Yamada, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A first processor core with an operating system installed and a second processor core controlled by the first processor core and capable of executing parallel operation processing are included. The second processor core, when detecting a page fault, stops new instruction issue and stops as an issued and uncompleted instruction can be restarted, and also sends notification of page fault detection to the first processor core. The first processor core includes a permissibility judgment part that judges whether or not the page fault is permissible in response to reception of the notification, a page table updating part that updates a page table included by the second processor core in accordance with a result of the judgment by the permissibility judgment part, and a directing part that sends a direction corresponding to a result of the judgment by the permissibility judgment part to the second processor core.