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Accelerating the D3Q19 Lattice Boltzmann Model with OpenACC and MPI
Umeå University, Faculty of Science and Technology, Department of Computing Science.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Multi-GPU implementations of the Lattice Boltzmann method are of practical interest as they allow the study of turbulent flows on large-scale simulations at high Reynolds numbers. Although programming GPUs, and in general power-efficient accelerators, typically guarantees high performances, the lack of portability in their low-level programming models implies significant efforts for maintainability and porting of applications. Directive-based models such as OpenACC look promising in tackling these aspects. In this work we will evaluate the performances of a Multi-GPU implementation of the Lattice Boltzmann method accelerated with OpenACC. The implementation will allow for multi-node simulations of fluid flows in complex geometries, also supporting heterogeneous clusters for which the load balancing problem is investigated.

Place, publisher, year, edition, pages
2015. , 69 p.
, UMNAD, 1042
National Category
Engineering and Technology
URN: urn:nbn:se:umu:diva-109595OAI: diva2:858156
External cooperation
annat universitet
Educational program
Master's Programme in Computational Science and Engineering
Available from: 2015-10-01 Created: 2015-10-01 Last updated: 2015-10-01Bibliographically approved

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