Cloud high performance computing and performance prediction

The point of having a high performance computer is so that the individual nodes can work together to solve a problem larger than any one computer can easily solve. HPC users are accustomed to managing directly very complex parallel systems and performing a very fine-tuning of their applications on the target hardware. The matter is to ascertain if it may be convenient to deploy such applications on a cloud, where users “voluntarily” lose almost all control on the execution environment, leaving the management of datacenters to the cloud owner. cloud computing may be exploited at three different levels: IaaS (Infrastructure as a Service), PaaS (Platform as a Service), and AaaS (Application as a Service). In one way or another, all of them can be useful for HPC[2].