Staff Reporter

Australian professor throws light on new transition in IT

TIRUCHI: There are three ways to improve performance in computing: work harder, work smarter or take help.

These approaches require building hardware faster, developing optimised algorithms and techniques, and utilising multiple computers respectively.

Clusters that solve sequential as well as parallel applications have proven to be a good choice for science and engineering applications, business applications, e-commerce applications (Amazon, eBay), database applications (oracle on clusters), Internet applications, and mission critical applications, according to Rajkumar Buyya, Professor and Director, Cloud Computing and Distributed Systems Lab, Department of Computer Science and Software Engineering, University of Melbourne, Australia.

The new IT trend is witnessing a transition from the expensive ownership model (classical computing) that required people to buy and own hardware, system software, and applications – they need to be installed, configured, tested, verified, evaluated and managed – to meet peak needs to that of a leasing one (cloud computing) in subscribe-use paradigm.

In the latter case, the payment is made only for what is used based on the quality of service, Prof. Buyya explained at the workshop and training programme on ‘Cloud Computing: the next revolution in Information Technology’ at the M.A.M. College of Engineering, Siruganur, recently.

With the onset of cloud computing in 2008, the vision has been changing fast; computers have been redefined as an implication of the Internet. Definitions of many dimensions of cloud computing can be located at, Prof. Buyyatold a gathering of 250 faculty members and researchers from various colleges, and final year students of the host college.

Various computing paradigms and attributes put together, ‘Computer Utilities’ vision is realised, he pointed out. The paradigms include web, data centres, utility computing, service computing, grid computing, P2P computing, market-oriented computing and cloud computing, he said, referring to them as ubiquitous, reliable, scalable, and autonomic to meet quality of service and service level agreement.

Trillions of dollars

The vision was capable of producing trillion dollars of business yearly.

Primarily, cloud services are organised as infrastructure as a service (eg.,, Nirvanic, GoGrid), platform as a service (Google Appengine, Microsoft Azure, Manjrasoft Aneka), and software as a service (

Cloud services obviate the need for upfront infrastructure investment on hardware procurement or expenditure on counts of setting up, hosting and power, he further explained.

The worldwide IT spending is much more on IT Cloud Services compared to on-premises IT. The spend on Clout Services is predicted to go up even higher in 2012, he said.