Involving users in energy conservation: a case study in scientific clouds Online publication date: Mon, 20-May-2019
by David Guyon; Anne-Cécile Orgerie; Christine Morin; Deb Agarwal
International Journal of Grid and Utility Computing (IJGUC), Vol. 10, No. 3, 2019
Abstract: Services offered by cloud computing are convenient to users for reasons such as their ease of use, flexibility, and financial model. Yet data centres used for their execution are known to consume massive amounts of energy. The growing resource utilisation following the cloud success highlights the importance of the reduction of its energy consumption. This paper investigates a way to reduce the footprint of HPC cloud users by varying the size of the virtual resources they request. We analyse the influence of concurrent applications with different resources sizes on the system energy consumption. Simulation results show that resources with larger size are more energy consuming regardless of faster completion of applications. Although smaller-sized resources offer energy savings, it is not always favourable in terms of energy to reduce too much the size. High energy savings depend on the user profiles' distribution.
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