1507

Modeling the propagation of elastic waves using spectral elements on a cluster of 192 GPUs

Dimitri Komatitsch, Dominik Goddeke, Gordon Erlebacher, David Michea
CNRS & INRIA Magique-3D, Laboratoire de Modelisation et d’Imagerie en Geosciences UMR 5212, Universite de Pau, Pau, France
Computer Science – Research and Development, Volume 25, Numbers 1-2, 75-82 (13 April 2010)

@article{komatitsch2010modeling,

   title={Modeling the propagation of elastic waves using spectral elements on a cluster of 192 GPUs},

   author={Komatitsch, D. and G{\”o}ddeke, D. and Erlebacher, G. and Mich{‘e}a, D.},

   journal={Computer Science-Research and Development},

   volume={25},

   number={1},

   pages={75–82},

   issn={1865-2034},

   year={2010},

   publisher={Springer}

}

Download Download (PDF)   View View   Source Source   

556

views

We implement a high-order finite-element application, which performs the numerical simulation of seismic wave propagation resulting for instance from earthquakes at the scale of a continent or from active seismic acquisition experiments in the oil industry, on a large GPU-enhanced cluster. Mesh coloring enables an efficient accumulation of degrees of freedom in the assembly process over an unstructured mesh. We use non-blocking MPI and show that computations and communications over the network and between the CPUs and the GPUs are almost fully overlapped. The GPU solver scales excellently up to 192 GPUs and achieves significant speedup over a carefully tuned equivalent CPU code.
No votes yet.
Please wait...

* * *

* * *

HGPU group © 2010-2017 hgpu.org

All rights belong to the respective authors

Contact us: