University of Southampton
The proliferation of commercial cloud computing providers has generated significant interest in the scientific computing community. Much recent paper has attempted to determine the benefits and drawbacks of cloud computing for scientific applications. Although clouds have many attractive features, such as virtualization, on-demand provisioning, and \"Pay as the user go\" usage-based pricing, it is not clear whether they are able to deliver the performance required for scientific applications at a reasonable price. In this paper the authors examine the performance and cost of clouds from the perspective of scientific workflow applications.