What Lies Ahead for the Development of Simulation Codes?

Dr. Osni Marques, Lawrence Berkeley National Laboratory, USA

Abstract: The development of simulation codes is often a costly process that results from the combination of the increasing complexity of problems to be solved and the evolution of computer architectures. Practitioners are expected to develop highly efficient codes, although current and emerging computer architectures pose formidable challenges in achieving adequate levels of performance. In many cases scientific software libraries have facilitated the development effort, contributed to an optimal usage of the available computational resources, provided portability and thus extended the application lifecycle. Given the current architectural trends, and a range of choices for programming ? MPI, OpenMP, PGAS Languages, CUDA, the emerging OpenACC ? this talk will discuss how these trends and choices may impact libraries and the development of simulation codes.