Open Archive TOULOUSE Archive Ouverte (OATAO) To cite this version Dynamically Building Energy Proportional Data Centers with Heterogeneous Computing Resources

Villebonnet, Violaine, Da Costa, Georges, Laurent, Pierson, Jean-Marc Stolf, Patricia, Violaine Villebonnet, Georges Da Costa, Laurent Lefevre, Jean-Marc Pierson (+1 others)
2016 Dynamically Building Energy Proportional Data Centers with Heterogeneous Computing Resources   unpublished
OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 18804 The contribution was presented at CLUSTER 2016 : Abstract-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
more » ... which is an issue as data centers are often over-provisioned. This work proposes a novel approach for building data centers with heterogeneous machines carefully chosen for their performance and energy efficiency ratios. We focus on web applications whose load varies over time, and design a scheduler that dynamically reconfigures the infrastructure, by migrating applications and switching machines on or off, so that the energy consumed by the data center is proportional to the load. Experiments evaluate the approach and show the energy savings achieved by our heterogeneous data center design and management while satisfying Quality of Service (QoS) constraints.
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