GPU energy modeling and analysis

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Abstract/Contents

Abstract
Over the past couple of decades GPUs have enjoyed tremendous scaling in both functionality and performance by focusing on area efficient processing. However, the slowdown in supply voltage scaling has created a new hurdle to continued scaling of GPU performance. This slowdown in voltage scaling has caused power consumption to limit the achievable GPU performance. Since GPUs currently use many of the well-known hardware techniques for reduced power consumption, GPU designers need to start looking at architectural techniques to improve energy efficiency. To enable this exploration, we create an accurate power model of GPU architectures and apply this model to explore a couple of methods to save power. As part of these studies we will look at overdraw (which occurs when a given pixel's value is computed more than once) and thread level redundancy in the shader processor of the GPU. Through the use of our model and GPU performance data, we will show that significant opportunities exist for improving energy efficiency. These studies demonstrate both the utility of our power model, and the potential of architectural changes to make GPUs more energy efficient.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2015
Issuance monographic
Language English

Creators/Contributors

Associated with Asgar, Zain
Associated with Stanford University, Department of Electrical Engineering.
Primary advisor Horowitz, Mark (Mark Alan)
Primary advisor Montrym, John
Thesis advisor Horowitz, Mark (Mark Alan)
Thesis advisor Montrym, John
Thesis advisor Kozyrakis, Christoforos, 1974-
Advisor Kozyrakis, Christoforos, 1974-

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Zain Asgar.
Note Submitted to the Department of Electrical Engineering.
Thesis Thesis (Ph.D.)--Stanford University, 2015.
Location electronic resource

Access conditions

Copyright
© 2015 by Zain Mohamed Asgar
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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