公开(公告)号：US20170286125A1

公开(公告)日：2017-10-05

申请号：US15084268

申请日：2016-03-29

Applicant: INTEL CORPORATION

Inventor： Rajeev D. Muralidhar ,  Harinarayanan Seshadri

IPC: G06F9/44 ,  G06F1/32 ,  G06F1/26

CPC classification number: G06F9/4411 ,  G06F1/263 ,  G06F1/3212 ,  G06F9/4418

Abstract: Dynamic power management of integrated devices can be accomplished using game theory. In an example, power demands for individual devices (e.g., CPU, GPU, communications, etc.) can be controlled by governors. An engine can determine a system condition (e.g., docked or undocked) and use a reward and/or penalty matrix to determine power settings to provide to governors. Periodically, the engine can reevaluate the system condition and power settings for the governors. For example, device components can be modeled as players in a game. In the case of idle power management scenarios, the players can deploy cooperative gaming strategy to allow the system to be in a low power state.

公开(公告)号：US09733689B2

公开(公告)日：2017-08-15

申请号：US14752896

申请日：2015-06-27

Applicant: Intel Corporation

Inventor： Rajeev D. Muralidhar ,  Harinarayanan Seshadri ,  Nivedha Krishnakumar ,  Youvedeep Singh ,  Suketu R. Partiwala

IPC: G06F1/00 ,  G06F1/32 ,  G06F9/30 ,  G06F9/52

CPC classification number: G06F1/3206 ,  G06F1/3203 ,  G06F1/3287 ,  G06F9/30083 ,  G06F9/52 ,  Y02D10/171

Abstract: Methods and apparatuses relating to transactional power management are described. In one embodiment, a hardware apparatus includes a hardware processor having a core, a plurality of power domains to transition to one of a plurality of power states in response to a power management command for each power domain, and a power transaction unit to assign a first power management command as a first power transaction and a second power management command as a second power transaction for concurrent execution, perform a commit of the first power transaction and the second power transaction when there is no conflict between the first power transaction and the second power transaction, and perform an abort of the first power transaction and a commit of the second power transaction when there is a conflict between the first power transaction and the second power transaction.