Short info: GPU version of the 2Dxy scheme, 9th UnTRIM Workshop, Trento, 7-9 May 2012.
The ongoing developments of the GPU-implementation of the 2Dxy semi-implicit scheme for general free surface flows. Moving towards a generic application by providing a user interface and embedding the CUDA computational core in C++ structures, as well as code verification and validation. Continue reading
Jacek A. Jankowski. General-purpose GPUs – why interesting?, 7th UnTRIM Workshop, Trento, 3-5 May 2010.
The philosophy behind the general purpose GPU computing with arguments pro and against is discussed with the background of initiated projects to adapt specific numeric schemes to apply this technology. Continue reading
Jacek A. Jankowski. Improving and optimising UnTRIM MPI library, 6th UnTRIM Workshop, Trento, 11-13 May 2009.
A number of improvements to the present MPI version of UnTRIM containing the iterative treatment of the wetting and drying are presented: Continue reading
Jacek A. Jankowski
Abstract. The parallel implementation of an unstructured-grid, three-dimensional, semi-implicit finite difference and finite volume model for the free surface Navier-Stokes equations (UnTRIM) is presented and discussed. The new developments are aimed to make the code available for high performance computing in order to address larger, complex problems in environmental free surface flows. Continue reading
R. Patzwahl, J.A. Jankowski, T. Lege
Abstract. The paper discusses the advantages and disadvantages of numerical modelling of rivers with a grid of very high resolution using the new MPI version of UnTRIM as the computational engine. The main aim of the investigation is to assess the economy of this approach taking especially into account the effort required for the mesh generation and its modification, which is usually laborious in the case of coarser meshes requiring exact reproduction of structure lines defining the flow. Continue reading