MSE Research Project Database

Green Cloud: Energy-Efficient Cloud Computing

Project Leader: Rajkumar Buyya
Primary Contact: Rajkumar Buyya (
Keywords: cloud computing; energy efficiency; Internet technologies
Disciplines: Computing and Information Systems
Domains: Networks and data in society, Optimisation of resources and infrastructure

Traditionally, high-performance computing (HPC) community has focused on performance (speed). Since early 2000, several companies have started building Data Centers inspired by commodity HPC (cluster computing) systems-architecture for hosting/powering industrial applications including search engines such as Google. At the same time microprocessor vendors have not only doubled the number of transistors (and speed) every 18–24 months, but they have also doubled the power densities. That is, the tremendous increase in computer performance has come with an even grater increase in power usage. As a result operational cost of HPC systems including industrial Data Centre is rapidly growing. This is reflected from a statement by Google CEO (Eric Schmit): “What matters most to [...] Google is not speed but power, because data centers can consume as much electricity as a city.”

The aim of Green Cloud Project is to develop high-end computing systems such as Clusters, Data Centers, and Clouds that allocate resources to applications hosting Internet services (e-Services) to meet not only user’s quality of service requirements, but also minimise consumption of electric power. That is, to improve power management and consumption by dynamically managing and configuring power-aware ability of system devices, such as processors, disks, and communication links.

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