Green IT: Energy Efficient Constructions and Applications for Data Centers and Clusters.

This paper is devoted to an actual concept of “Green IT” with the background of the “hardcore” resource consuming applications. The given work discusses the energy efficient constructions for computing centres and clusters, which provide optimisation of performance as well as PW, PUE and ERE factors. The following both approaches are examined: 1) workload consolidation and intelligent VM migration; 2) optimisation of the cooling process (guaranteeing PUE) and energy recycling (guaranteeing ERE and CO\(_2\) footprint reduction). The optimal ERE within the data centres and computing clusters provides advanced resource-consuming distributed applications like pharmacology simulations, Big Data analytics, Blockchain, crypto-currency mining.