Abstract

Spectral element methods allow for effective implementation of numerical
techniques for partial differential equations on parallel architectures.

We present two implementations of the parallel algorithm where the
communications are performed using MPI. In the first implementation, each
processor deals with one element. It leads to a natural parallelization. In
the second implementation certain number of spectral elements are allocated to
each processor.

In this article, we describe how communications are implemented and present
results and performance of the code on two architectures: a PC-Cluster and an
IBM-SP3.