Prediction of behavior of MPI applications

Scalability and performance of applications is a very important issue today. As more complex have become high performance architectures, it is more complex to predict the behavior of a given application running on them. In this paper, we propose a methodology which automatically and quickly predicts, from a very limited number of runs using very few processors, the scalability and performance of a given application in a wide range of supercomputers taking into account details of the architecture and the network of the machines.