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Acceleration of a CFD Code with a GPU

Dennis C. Jespersen
NASA/Ames Research Center Moffett Field, CA 94035, USA
Computational Fluid Dynamics Recent Advances and (2009) Issue: November, Pages: 1-10

@article{jespersenacceleration,

   title={Acceleration of a CFD Code with a GPU},

   author={Jespersen, D.C.},

   journal={Parallel Computational Fluid Dynamics: Recent Advances and Future Directions},

   pages={430},

   isbn={160595022X},

   publisher={DEStech Publications, Inc}

}

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The CFD code Overflow includes as one of its solver options a quasi-SSOR algorithm. This is a fairly small piece of code but it accounts for a significant portion of the total computational time. This paper studies some of the issues in accelerating the code by use of a GPU. The algorithm needs to be modified to be suitable for a GPU, and attention needs to be given to 64-bit and 32-bit arithmetic.
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