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Implementation and performance of the time integration of a 3D numerical transport model. (English) Zbl 0841.76059

We discuss two numerical methods. The emphasis is on the performance of the methods when implemented on a vector/parallel, shared memory computer such as a Cray-type machine. The first method is an explicit time integrator and can straightforwardly be vectorized and parallelized. The second method is partly implicit, resulting in much better stability characteristics; however, as a consequence of the implicitness, it requires in each step the solution of a large number of tridiagonal systems.

MSC:

76M20 Finite difference methods applied to problems in fluid mechanics
76R99 Diffusion and convection
86A05 Hydrology, hydrography, oceanography
65Y05 Parallel numerical computation
Full Text: DOI

References:

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