Towards an Energy Model for Modular Parallel Scientific Applications

Programming models based on parallel modules provide portable efficiency on a large range of parallel platforms due to a flexible execution model for the modules. Today, energy efficiency is becoming equally important as execution time efficiency. This article investigates the execution of parallel module programs with respect to energy concerns. In particular, an analytical energy model is extended to capture the energy consumption of parallel module programs, enabling an exploration of the energy consumption for various execution schemes. An experimental evaluation is presented which shows the validity of the energy model for a recent multicore architecture.