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ASAMgpu V1.0-a moist fully compressible atmospheric model using graphics processing units (GPUs)

S. Horn
Leibniz Institute for Tropospheric Research, Permoserstrasse 15, 04318 Leipzig, Germany
GGeoscientific Model Development, 4, 2635-2660, 2011

@article{horn2011asamgpu,

   title={ASAMgpu V1. 0–a moist fully compressible atmospheric model using graphics processing units (GPUs)},

   author={Horn, S.},

   year={2011}

}

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In this work the three dimensional compressible moist atmospheric model ASAMgpu is presented. The calculations are done using graphics processing units (GPUs). To ensure platform independence OpenGL and GLSL is used, with that the model runs on any hardware supporting fragment shaders. The MPICH2 library enables interprocess communication allowing the usage of more than one GPU through domain decomposition. Time integration is done with an explicit three step Runge-Kutta scheme with a timesplitting algorithm for the acoustic waves. The results for four test cases are shown in this paper. A rising dry heat bubble, a cold bubble induced density flow, a rising moist heat bubble in a saturated environment and a DYCOMS-II case.
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