Scientific Programming

Scientific Programming / 2010 / Article
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Exploring Languages for Expressing Medium to Massive On-Chip Parallelism

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Volume 18 |Article ID 564806 | 9 pages | https://doi.org/10.3233/SPR-2010-0309

Acceleration of a CFD Code with a GPU

Abstract

The Computational Fluid Dynamics code OVERFLOW includes as one of its solver options an algorithm which is a fairly small piece of code but which accounts for a significant portion of the total computational time. This paper studies some of the issues in accelerating this piece of code by using a Graphics Processing Unit (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. Interestingly, the work done for the GPU produced ideas for accelerating the CPU code and led to significant speedup on the CPU.

Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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