The performance of several computers is examined using a 3D-turbulence simulation. Results are given for test runs using the original program as well as a partially optimized/vectorized version. Special attention is given to porting the code to a multiprocessor transputer system. The results of the simulations are presented in two ways: (1) energy versus lengthscales plotted at subsequent time steps, and (2) for each lenghtscale a color scale is used to represent the energy.

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