Early power exploration---a World Wide Web application

Lidsky, David; Rabaey, Jan M.

doi:10.1145/240518.240523

Cited by 57 publications

(17 citation statements)

References 18 publications

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“…The estimation procedure adopted for the algorithms under consideration was mainly based on PowerPlay [9]. PowerPlay is a tool offering very early power prediction.…”

Section: Estimation Of Power Consumptionmentioning

confidence: 99%

A novel algorithm for low-power image and video coding

Masselos

Merakos²,

Stouraitis³

et al. 1998

IEEE Trans. Circuits Syst. Video Technol.

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A novel scheme for low-power image and video coding and decoding is presented. It is based on vector quantization, and reduces its memory requirements, which form a major disadvantage in terms of power consumption. The main innovation is the use of small codebooks, and the application of simple but efficient transformations to the codewords during coding to compensate for the quality degradation introduced by the small codebook size. In this way, the small codebooks are computationally extended, and the coding task becomes computation based rather than memory based, leading to significant power consumption reduction. The parameters of the transformations depend on the image block under coding, and thus the small codebooks are dynamically adapted each time to this specific image block, leading to image qualities comparable to or better than those corresponding to classical vector quantization. The algorithm leads to power savings of a factor of 10 in coding and of a factor of 3 in decoding at least, in comparison to classical full-search vector quantization. Both image quality and power consumption highly depend on the size of the codebook that is used.

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“…The estimation procedure adopted for the algorithms under consideration was mainly based on PowerPlay [9]. PowerPlay is a tool offering very early power prediction.…”

Section: Estimation Of Power Consumptionmentioning

confidence: 99%

A novel algorithm for low-power image and video coding

Masselos

Merakos²,

Stouraitis³

et al. 1998

IEEE Trans. Circuits Syst. Video Technol.

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“…For example, spread-sheet [1] and power-state based methods [2] [3] are often used to explore the power design space at early design phases. In these methods, the power consumption of each component is modeled by parameterized equations or annotated power values, which rely on constant process parameters or nominal/worst-case power values.…”

Section: Introductionmentioning

confidence: 99%

Variation-aware leakage power model extraction for system-level hierarchical power analysis

Xu¹,

Li²,

Hasholzner³

et al. 2012

2012 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Abstract-System-level power analysis is commonly used in modern SoC design processes to evaluate power consumption at early design phases. With the increasing variations in manufacturing, the statistical characteristics of parameters are also incorporated in the state-of-the-art methods. However, the spatial correlation between modules still remains as a challenge for system-level statistical power analysis where power models generated from individual modules are used for analysis efficiency or IP protection. In this paper, we propose a novel method to extract variation-aware and correlation-inclusive leakage power models for fast and accurate system-level analysis. For each individual module we generate a power model with different correlation information specified by the module vendor or customer. The local random variables in the power models are replaced by the corresponding ones at system level to reconstruct the correlation between modules so that the accuracy of system-level analysis is guaranteed. Experimental results show that our method are very accurate while being 1000X faster than Monte Carlo simulation and 70X−100X faster than the flattened full chip statistical leakage analysis.

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“…Power Estimation Tool at MIT [29], PowerPlay of UC, Berkeley [15], PPP -Power Estimation and Synthesis of Low-Power Circuits at Stanford [3]). Since all these tools are available on the Web and if there exists a transparent framework to integrate these tools, a designer at MIT can build a new tool, which given a mixed level circuit design (specified in various levels of abstraction) will generate the estimated power dissipation of that circuit.…”

Section: Meta Web Toolsmentioning

confidence: 99%

“…In [15], Lidsky and Rabaey present a World Wide Web based prototype tool, PowerPlay which helps in system level exploration of power consumption. PowerPlay uses the HTML form-based user interface which prompts the user to select a subset of available library and their parameters.…”

Section: Related Workmentioning

confidence: 99%