Accelerating the D3Q19 Lattice Boltzmann Model with OpenACC and MPI
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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
Engineering and Technology
IdentifiersURN: urn:nbn:se:umu:diva-109595OAI: oai:DiVA.org:umu-109595DiVA: diva2:858156
Master's Programme in Computational Science and Engineering