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Lattice-Gas Automata Fluids on Parallel Supercomputers

Jeffrey Yepez·Guy P. Seeley·Norman Margolus
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Abstract

A condensed history and theoretical development of lattice-gas automata in the Boltzmann limit is presented. This is provided as background to set up the context for understanding the implementation of the lattice-gas method on two parallel supercomputers: the MIT cellular automata machine CAM-8 and the Connection Machine CM-5. The macroscopic limit of two-dimensional fluids is tested by simulating the Rayleigh-Bénard convective instability, Kelvin-Helmholtz shear instability, and the Von Karman vortex shedding instability. Performance of the two machines in terms of both site update rate and maximum problem size are comparable. The CAM-8, being a low-cost desktop machine, demonstrates the potential of special-purpose digital hardware.

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Jeffrey Yepez, Guy P. Seeley, Norman Margolus. 1994-03-19. Lattice-Gas Automata Fluids on Parallel Supercomputers. https://arxiv.org/abs/comp-gas/9403005

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