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. 10, 2017

Filed:

Sep. 04, 2015
Applicants:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Ati Technologies Ulc, Markham, CA;

Inventors:

Alexander J. Branover, Boxborogh, MA (US);

Adam N. C. Clark, Markham, CA;

Ashish Jain, Austin, TX (US);

Sridhar V. Gada, Bangalore, IN;

Assignees:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

ATI Technologies ULC, Markham Ontario, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/32 (2006.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3206 (2013.01); G06F 1/324 (2013.01); G06F 1/329 (2013.01); G06F 1/3228 (2013.01); G06F 1/3296 (2013.01); G06F 9/5094 (2013.01);
Abstract

A power management controller tracks the idle state of a compute unit and compares the tracked idle state with a first threshold. If the tracked idle state is above the first threshold a power state of the compute unit is limited to a low power state so that the power state does not rise due to activity that occurs in low utilization scenarios. The tracked idle state is compared to a second threshold and if the tracked idle state is below the second threshold, indicating that the compute unit is not in a low utilization scenario, a limit on the power state is removed and the power state of the compute unit is allowed to rise.


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