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By Jorge Marx Gomez, Michael Sonnenschein, Ute Vogel, Andreas Winter, Barbara Rapp, Nils Giesen

This ebook offers the most recent findings and ongoing examine within the box of eco-friendly details platforms and eco-friendly info and conversation expertise (ICT). It offers insights right into a entire variety of cross-cutting themes in ICT and environmental sciences in addition to showcases how details and communique applied sciences enable environmental and effort potency concerns to be dealt with successfully. The papers awarded during this publication are a variety of prolonged and better contributions to the twenty eighth foreign convention on Informatics for Environmental defense devoted to ICT for strength potency. This ebook is key and especially worthy analyzing should you already received easy wisdom and need to deepen and expand their services within the topics pointed out above.

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Extra resources for Advances and New Trends in Environmental and Energy Informatics: Selected and Extended Contributions from the 28th International Conference on Informatics for Environmental Protection

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2 lists the related work, in Sect. 3 the models and architecture of the simulation is described, while Sect. 4 24 S. Janacek and W. Nebel shows the problem formulation and the methodology (DaMucA heuristic) used. In Sect. 5, we present evaluation results and analyze the potential of the approach. We conclude in Sect. 6 and describe our next steps and further research. 2 Related Work The area of research this paper addresses is also focus of other publications. General server power models can be found in [14, 24], while [21] already proposes additional models for racks and cooling units.

Janacek and W. Nebel Thermal Models The thermal models in this simulation are used to evaluate the power consumption of the cooling devices depending on the workload of servers in different data center locations (room, racks, cages). Furthermore, they need to provide a thermal performance index for each rack and server that identifies its cooling efficiency. Using this index, the algorithm can prioritize efficient areas in the data center. Accurate and complex thermal simulations use CFD to model the airflow, pressure and temperature in a data center room [26].

It can be seen that the FFD solution contains racks with no power consumption (all servers off) and some with power peaks. ) and an improved method to retrieve optimal parallel migration plans using the network model. We are also working on evolutionary algorithms to find an allocation state near the optimum while still completing in realistic time frames. Since the problem to solve is very complex and it is generally hard to determine the “real” optimum, a competitive analysis is planned for the evaluation of the algorithm.

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