Dynamic Thermal Management for MPEG-2 Decoding

Lee, Wonbok; Patel, Kimish; Pedram, Massoud

doi:10.1109/lpe.2006.4271856

Cited by 6 publications

(10 citation statements)

References 12 publications

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“…In [5], the authors develop a power-rate-distortion model for an MPEG encoder with complexity control parameters and solve an optimization problem to maximize video quality given power and framerate constraints. [6,7] both proposed dynamic thermal management schemes for MPEG decoding by allowing a certain amount of image/video quality loss. Each work made use of dynamic voltage/frequency scaling and some graceful performance degradation policies to ensure a thermally safe state of operation.…”

Section: Related Workmentioning

confidence: 99%

Energy- and Thermal-Aware Video Coding via Encoder/Decoder Workload Balancing

Forte

Srivastava

2013

ACM Trans. Embed. Comput. Syst.

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Isr develops, applies and teaches advanced methodologies of design and analysis to solve complex, hierarchical, heterogeneous and dynamic problems of engineering technology and systems for industry and government.Isr is a permanent institute of the university of maryland, within the a. James clark school of engineering. It is a graduated national science foundation engineering research center. ankurs@umd.edu ABSTRACTEven with consistent advances in storage and transmission capacity, video coding and compression are essential components of multimedia services. Traditional video coding paradigms result in excessive computation at either the encoder or decoder. However, several recent papers have proposed a hybrid PVC/DVC (Predictive/ Distributed Video Coding) codec which shares the video coding workload. In this paper, we propose a controller for such hybrid coders that considers energy and temperature to dynamically split the coding workload of a system comprised of one encoder and one decoder. Results show that the proposed controller results in more balanced energy utilization, improving overall system lifetime and reducing operating temperatures when compared to strictly PVC and DVC systems.

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Section: Related Workmentioning

confidence: 99%

Energy- and Thermal-Aware Video Coding via Encoder/Decoder Workload Balancing

Forte

Srivastava

2013

ACM Trans. Embed. Comput. Syst.

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“…The dynamic thermal management techniques are originally developed at micro-architecture level for general purpose microprocessors [1,2,5,6,8,9,10]. As the power density continues scaling up, the thermal-related issues are exasperated in embedded systems.…”

Section: Related Workmentioning

confidence: 99%

Hybrid of Job Sequencing and DVFS for Peak Temperature Reduction with Nondeterministic Applications

Liu

Qiu

Gao

et al. 2010

2010 10th IEEE International Conference on Computer and Information Technology

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In this paper we propose a hybrid approach, which improves system thermal behavior with nondeterministic applications based on job sequencing as well as dynamic voltage and frequency selection (DVFS). The hybrid approach consists of two steps: 1) job sequencing and 2) lowering processor's speed by using dynamic voltage and frequency selection. The first step constructs a job sequence based on the average execution time of each job; and the constructed job sequence interleaves executions of hot jobs and cool jobs. While a hot job pushes up the temperature of a chip, a cool job cools the chip down. Accordingly the job sequencing step reduces the peak temperature of a chip. The second step further improves system-wide thermal behavior by dynamic voltage and frequency selection, which slows down the execution of hot jobs by utilizing job slacks. Hot jobs are the rooted cause for deteriorating the thermal behavior of a processor, so we only slow down the execution of hot jobs and job slacks are allocated among hot jobs. Hot jobs whose execution time deviates more above their average execution time get more slack; vice versa. Experimental results show that the proposed hybrid approach improves the system thermal behavior for various nondeterministic workloads by reducing peak temperature as well as decreasing thermal variations.

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“…To avoid the thermal crisis in high performance processor, most of them have been addressed as a performance optimization problem under an emergency temperature limit. These work can be classified into two categories: i) the online DTM techniques [5]- [11] and ii) the offline DTM techniques [12]- [15].…”

Section: Previous Workmentioning

confidence: 99%

“…Srinivasan et al [10] proposes a predictive DTM algorithm targeted at multimedia application. Lee et al [11] present a similar DTM mechanism for MPEG decoding by observing the profiled temperature information to predict future thermal crisis risk. Recently, Intel has reported about the thermal aware design for some of their high performance processors [16].…”

Section: Previous Workmentioning

confidence: 99%

Approximation algorithm for the temperature-aware scheduling problem

Zhang¹,

Chatha²

2007

2007 IEEE/ACM International Conference on Computer-Aided Design

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Abstract-The paper addresses the problem of performance optimization for a set of periodic tasks with discrete voltage/frequency states under thermal constraints. We prove that the problem is NP-hard, and present a pseudo-polynomial optimal algorithm and a fully polynomial time approximation technique (FPTAS) for the problem. The FPTAS technique is able to generate solutions in polynomial time that are guaranteed to be within a designer specified quality bound (QB) (say within 1% of the optimal). We evaluate our techniques by experimentation with multimedia and synthetic benchmarks mapped on the 70nm CMOS technology processor. The experimental results demonstrate our techniques are able to match optimal solutions when QB is set at 5%, can generate solutions that are quite close to optimal (< 5%) even when QB is set at higher values (50%), and executes in few seconds (with QB > 25%) for large task sets with 120 nodes (while the optimal solution takes several hundred seconds). We also analyze the effect of different thermal parameters, such as the initial temperature, the final temperature and the thermal resistance.

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Dynamic Thermal Management for MPEG-2 Decoding

Cited by 6 publications

References 12 publications

Energy- and Thermal-Aware Video Coding via Encoder/Decoder Workload Balancing

Energy- and Thermal-Aware Video Coding via Encoder/Decoder Workload Balancing

Hybrid of Job Sequencing and DVFS for Peak Temperature Reduction with Nondeterministic Applications

Approximation algorithm for the temperature-aware scheduling problem

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