APPLICATION OF A DISTRIBUTED NETWORK IN COMPUTATIONAL FLUID DYNAMIC SIMULATIONS

A general-purpose 3-D, incompressible Navier-Stokes algorithm is imple mented on a network of concurrently operating workstations using PVM a nd compared with its performance on a CRAY Y-MP and on an Intel iPSC/8 60. The problem is relatively computationally intensive, and has a com munication structure based primarily on nearest-neighbor communication , making it ideally suited to message passing. Such problems are frequ ently encountered in CFD, and their solution is increasingly in demand . The communication structure is explicitly coded in the implementatio n to fully exploit the regularity in message passing in order to produ ce a near-optimal solution. Results are presented for various grid siz es using up to eight processors.