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- Jean-Claude Charr, Raphaël Couturier, Ahmed Fanfakh, Arnaud Giersch
- 2014 IEEE International Symposium on Parallel and…
- 2014

Dynamic Voltage Frequency Scaling (DVFS) can be applied to modern CPUs. This technique is usually used to reduce the energy consumed by a CPU while computing. Thus, decreasing the frequency reduces the power consumed by the CPU. However, it can also significantly affect the performance of the executed program if it is compute bound and if a low CPU… (More)

- Jean-Claude Charr, Raphaël Couturier, Ahmed Fanfakh, Arnaud Giersch
- 2015 IEEE International Parallel and Distributed…
- 2015

Computing platforms are consuming more and more energy due to the increasing number of nodes composing them. To minimize the operating costs of these platforms many techniques have been used. Dynamic voltage and frequency scaling (DVFS) is one of them. It reduces the frequency of a CPU to lower its energy consumption. However, lowering the frequency of a… (More)

- Ahmed Fanfakh, Jean-Claude Charr, Raphaël Couturier, Arnaud Giersch
- The Journal of Supercomputing
- 2016

It is widely accepted that the asynchronous parallel methods are more suitable than the synchronous ones on a grid architecture. Indeed, they outperform the synchronous methods, because they overlap the communications of the synchronous methods with computations. However, they also usually execute more iterations than the synchronous ones and thus consume… (More)

- Ahmed Fanfakh, Jean-Claude Charr, Raphaël Couturier, Arnaud Giersch
- J. Comput. Science
- 2016

In recent years, green computing has become an important topic in the supercomputing research domain. However, the computing platforms are still consuming more and more energy due to the increasing number of nodes composing them. To minimize the operating costs of these platforms many techniques have been used. Dynamic voltage and frequency scaling (DVFS)… (More)

- Ahmed Fanfakh, Jean-Claude Charr, Raphaël Couturier, Arnaud Giersch
- 2016 IEEE Intl Conference on Computational…
- 2016

This paper presents a new online frequency selecting algorithm for asynchronous parallel methods running over grids. It selects a vector of frequencies that gives the best tradeoff between energy consumption and performance. It also has a very small overhead and works without training and profiling. New energy and performance models are used in this… (More)

- Ahmed Fanfakh
- 2016

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