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A flexible high-performance Lattice Boltzmann GPU code for the simulations of fluid flows in complex geometries

Massimo Bernaschi, Massimiliano Fatica, Simone Melchionna, Sauro Succi, Efthimios Kaxiras
Istituto Applicazioni Calcolo, CNR, Viale Manzoni, 30-00185 Rome, Italy
Concurrency and Computation: Practice and Experience, Vol. 22, No. 1. (2010), pp. 1-14.

@article{bernaschi2010flexible,

   title={A flexible high-performance Lattice Boltzmann GPU code for the simulations of fluid flows in complex geometries},

   author={Bernaschi, M. and Fatica, M. and Melchionna, S. and Succi, S. and Kaxiras, E.},

   journal={Concurrency and Computation: Practice and Experience},

   volume={22},

   number={1},

   pages={1–14},

   issn={1532-0634},

   year={2010},

   publisher={Wiley Online Library}

}

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We describe the porting of the Lattice Boltzmann component of MUPHY, a multi-physics/scale simulation software, to multiple graphics processing units using the Compute Unified Device Architecture. The novelty of this work is the development of ad hoc techniques for optimizing the indirect addressing that MUPHY uses for efficient simulations of irregular domains.
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