Keynote: Eco-Computing
Dr. Ralf Gruber, STI-EPFL, Switzerland
Research communities are encouraged to choose parallel computers according to the needs of the different user applications. Optimal GRID scheduling strategies can help to choose a set of parallel machines with an optimal price/performance ratio. For this purpose, the applications and the different computing resources are parameterized (three of them could be used to characterize the TOP500 machines). These parameters as well as information on the machine loads and functionalities are used to evaluate a cost function model that predicts the best-suited machine. Besides economical quantities, this cost function can also include ecological aspects. We propose to adapt processor cycle periods to the application needs in order to drastically reduce power consumption. These strategies are demonstrated with three specific applications executed on different capacity and capability machines.