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:
Oct. 01, 2019

Filed:

Dec. 01, 2016
Applicant:

Via Alliance Semiconductor Co., Ltd., Shanghai, CN;

Inventors:

G. Glenn Henry, Austin, TX (US);

Douglas R. Reed, Austin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06N 3/063 (2006.01); G06F 12/0811 (2016.01); G06F 12/0864 (2016.01); G06N 3/04 (2006.01); G06F 12/084 (2016.01);
U.S. Cl.
CPC ...
G06N 3/063 (2013.01); G06F 12/084 (2013.01); G06F 12/0811 (2013.01); G06F 12/0864 (2013.01); G06N 3/0445 (2013.01); G06N 3/0454 (2013.01); G06F 2212/1041 (2013.01);
Abstract

A processor comprising a plurality of processing cores, a last level cache memory (LLC) shared by the plurality of processing cores, and a neural network unit (NNU) comprising an array of neural processing units (NPU) and a memory array. The LLC comprises a plurality of slices. To transition from a first mode in which the memory array operates to store neural network weights read by the plurality of NPUs to a second mode in which the memory array operates as a slice of the LLC in addition to the plurality of slices, the processor write-back-invalidates the LLC and updates a hashing algorithm to include the memory array as a slice of the LLC in addition to the plurality of slices. To transition from the second mode to the first mode, the processor write-back-invalidates the LLC and updates the hashing algorithm to exclude the memory array from the LLC.


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