Parallel Computer Architectures for Numerical Simulation

Numerical simulation requires very high performance computer architectures. This can only be achieved by using various forms of parallelism. The second section of this paper gives an introduction to the state-of-the-art in parallel computer architectures and their programming. Today, some open problems remain for the user of such architectures. Those problems and possible solutions are dealt with in the third section. Problems of communication, portability, and flexibility are addressed.