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Solving Incompressible Two-Phase Flows on Massively Parallel Multi-GPU Clusters

P. Zaspel, M. Griebel
Institute for Numerical Simulation, University of Bonn, Wegelerstrasse 6, 53115 Bonn, Germany
Computers & Fluids, 2011

@article{Zaspel.Griebel:2011,

   author={Zaspel, Peter and Griebel, Michael},

   title={Solving Incompressible Two-Phase Flows on Massively Parallel Multi-{GPU} Clusters},

   journal={Computers & Fluids},

   year={2011},

   owner={zaspel},

   timestamp={2011.10.13},

   note={submitted, also available as INS Preprint no. 1113},

   inspreprintnum={1113},

   pdf={http://wissrech.ins.uni-bonn.de/research/pub/zaspel/preprint_gpu_griebel_zaspel_2011.pdf}

}

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We present a fully multi-GPU-based double-precision solver for the three-dimensional two-phase incompressible Navier-Stokes equations. An in-depth performance analysis shows a realistic speed-up of the order of three by comparing equally priced GPUs and CPUs and more than a doubling in energy efficiency for GPUs. We observe profound strong and weak scaling on a multi-GPU cluster.
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