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46 research outcomes, page 1 of 5
  • publication . Conference object . 2016
    Open Access English
    Authors:
    Hayri Acar; Gülfem Isiklar Alptekin; Jean-Patrick Gelas; Parisa Ghodous;
    Persistent Identifiers
    Publisher: HAL CCSD
    Countries: Turkey, France

    International audience; ICTs (Information and Communication Technologies) are responsible around 2% of worldwide greenhouse gas emissions (Gartner, 2007). And according to the Intergovernmental Panel on Climate Change (IPPC) recent reports, CO2 emissions due to ICTs are...

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  • publication . Conference object . 2015
    Open Access English
    Authors:
    Guillaume Cerutti; Sophie Ribes; Christophe Godin; Carlos S. Galvan-Ampudia; Teva Vernoux;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    International audience; The goal of this paper is the reconstruction of topo-logically accurate 3-dimensional triangular meshes representing a complex, multi-layered plant tissue structure. Based on time sequences of meristem images of the model plant Arabidopsis thalia...

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  • publication . Conference object . 2015
    Open Access English
    Authors:
    Benjamin Girault;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    International audience; In this communication, we extend the concept of stationary temporal signals to stationary graph signals. We introduce the concept of strict sense stationary and wide sense stationary graph signals as a statistical invariance through an isometric ...

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  • publication . Conference object . 2020
    Open Access English
    Authors:
    Dorra Boughzala; Laurent Lefèvre; Anne-Cécile Orgerie;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    International audience; Building a sustainable Exascale machine is a very promising target in High Performance Computing (HPC). To tackle the energy consumption challenge while continuing to provide tremendous performance, the HPC community have rapidly adopted GPU-base...

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  • publication . Conference object . Report . 2015
    Open Access English
    Authors:
    Aurélien Cavelan; Yves Robert; Hongyang Sun; Frédéric Vivien;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France
    Project: ANR | MILYON (ANR-10-LABX-0070), ANR | Avenir L.S.E. (ANR-11-IDEX-0007), EC | SCORPIO (323872)

    In this paper, we discuss several scheduling algorithms to execute independent taskswith voltage overscaling. Given a frequency to execute the tasks,operating at a voltage below threshold leads to significant energy savings but also inducestiming errors. A verification ...

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  • publication . Conference object . 2017
    Open Access English
    Authors:
    Orgerie, Anne-Cecile; Amersho, Betsegaw Lemma; Haudebourg, Timothee; Quinson, Martin; Rifai, Myriana; Pacheco, Dino Lopez; Lefevre; Laurent;
    Persistent Identifiers
    Country: France

    International audience; Networking infrastructures are considered to consume as much energy as terminal end-user equipment or data-centers. While energy consumption of wireless networks is a matter of concern since their beginning, it is not the case for wired networks ...

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  • publication . Preprint . Conference object . 2014
    Open Access English
    Authors:
    François Rossigneux; Laurent Lefèvre; Jean-Patrick Gelas; Marcos Dias De Assuncao;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    Although cloud computing has been transformational to the IT industry, it is built on large data centres that often consume massive amounts of electrical power. Efforts have been made to reduce the energy clouds consume, with certain data centres now approaching a Power...

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  • publication . Part of book or chapter of book . 2017
    Open Access English
    Authors:
    Gabriel Hautreux; Alfredo Buttari; Arnaud Beck; Victor Cameo; Dimitri Lecas; Dominique Aubert; Emeric Brun; Eric Boyer; Fausto Malvagi; Gabriel Staffelbach; ...
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    International audience; Exascale implies a major pre-requisite in terms of energy efficiency, as an improvement of an order of magnitude must be reached in order to stay within an acceptable envelope of 20 MW. To address this objective and to continue to sustain perform...

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  • publication . Conference object . 2018
    Open Access English
    Authors:
    Hayri Acar; Hind Benfenatki; Jean-Patrick Gelas; Catarina Ferreira da Silva; Gülfem Isiklar Alptekin; Aïcha-Nabila Benharkat; Parisa Ghodous;
    Persistent Identifiers
    Publisher: HAL CCSD
    Countries: France, Turkey

    International audience; The emission of CO2 due to ICT (Information and Communication Technologies) is found as equivalent to aviation sector. Although the energy consumption in ICT is due both to hardware and software. In recent decade, the energy efficiency studies fo...

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  • publication . Conference object . 2016
    Open Access English
    Authors:
    Violaine Villebonnet; Georges Da Costa; Laurent Lefèvre; Jean-Marc Pierson; Patricia Stolf;
    Persistent Identifiers
    Publisher: HAL CCSD
    Country: France

    short paper; International audience; As the number of data centers increases, it is urgent to reduce their energy consumption. Although servers are becoming more energy-efficient, their idle consumption remains high, which is an issue as data centers are often over-prov...

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46 research outcomes, page 1 of 5