Parallel ocean flow computations on a regular and on an irregular grid

Abstract

Ocean flow problems can be discretized and solved on a regular grid, by taking l and points into account in the computations, or on an irregular grid. In the latter approach, the number of unknowns is less than for the regular grid. The data structures are completely different for the two approaches. As a consequence, different nummerical techniques may be required. In this paper we study different preconditioners, based on the EBE-preconditioner that was initially proposed by Hughes et al. We also show how the algorithms can be parallelized and we give results ontained on a cluster of workstations.