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.

Date of Patent:
Jun. 23, 2015

Filed:

Oct. 04, 2012
Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Teruyuki Morita, Kyoto, JP;

Yoshihiro Koga, Osaka, JP;

Kouji Nakajima, Kyoto, JP;

Assignee:

SOCIONEXT INC., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 9/50 (2006.01); G06F 9/455 (2006.01); G06F 9/46 (2006.01); G06F 9/54 (2006.01); G06F 12/08 (2006.01);
U.S. Cl.
CPC ...
G06F 9/5077 (2013.01); G06F 9/45533 (2013.01); G06F 9/461 (2013.01); G06F 9/544 (2013.01); G06F 12/0811 (2013.01); G06F 12/084 (2013.01);
Abstract

A computer system includes: a main storage unit, a processing executing unit sequentially executing processing to be executed on virtual processors; a level-1 cache memory shared among the virtual processors; a level-2 cache memory including storage areas partitioned based on the number of the virtual processors, the storage areas each (i) corresponding to one of the virtual processors and (ii) holding the data to be used by the corresponding one of the virtual processors; a context memory holding a context item corresponding to the virtual processor; a virtual processor control unit saving and restoring a context item of one of the virtual processors; a level-1 cache control unit; and a level-2 cache control unit.


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