2016
DOI: 10.1515/caim-2016-0023
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Abstract: In today's atmospheric numerical modeling, scalable and highly accurate numerical schemes are of particular interest. To address these issues Galerkin schemes, such as the spectral element method, have received more attention in the last decade. They also provide other state-of-the-art capabilities such as improved conservation. However, the tracer transport of hundreds of tracers, e.g., in the chemistry version of the Community Atmosphere Model, is still a performance bottleneck. Therefore, we consider two co… Show more

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Cited by 4 publications
(6 citation statements)
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“…As future work, we plan to optimize the data communication approach in semi‐Lagrangian advection and physical process. Additionally, the performance of atmospheric spectral model can be improved by Graphics Processing Unit (GPU) or Monolithic Integrated Circuit (MIC), and it is a great help in improving the computational efficiency of atmospheric model .…”
Section: Discussionmentioning
confidence: 99%
“…As future work, we plan to optimize the data communication approach in semi‐Lagrangian advection and physical process. Additionally, the performance of atmospheric spectral model can be improved by Graphics Processing Unit (GPU) or Monolithic Integrated Circuit (MIC), and it is a great help in improving the computational efficiency of atmospheric model .…”
Section: Discussionmentioning
confidence: 99%
“…Systems of advection--diffusion--reaction (ADR) equations model the chemical or biochemical processes involving several species transported by a fluid. These systems are responsible for most of the computational cost of typical environmental fluid dynamics models, such as those applied in climate, water and air quality and oceanic biogeochemistry modeling for long term simulations [6,16,17]. Also in applications to medium range weather forecasting, which consider shorter time ranges, the number of interacting transported species can be quite large.…”
Section: Introductionmentioning
confidence: 99%
“…These are then coupled to implicit methods for the diffusion and reaction step. As discussed in [16,17], SL methods have the advantage that all the computational work that makes them computationally more expensive per time step than standard Eulerian techniques is indeed independent of the number of tracers, which allows to achieve easily a superior efficiency level in the limit of a large number of tracers.…”
Section: Introductionmentioning
confidence: 99%
“…Large systems of advection-diffusion-reaction equations are responsible for most of the computational cost of typical environmental fluid dynamics models, such as are applied in climate modelling, water and air quality models and oceanic biogeochemistry [5], [12], [13]. Also in short and medium range weather forecasting, the number of interacting transported species is significant and drives the choice of optimal time discretization approaches towards methods that allow the use of large time steps [35].…”
Section: Introductionmentioning
confidence: 99%
“…The standard ways to achieve such optimal efficiency are either the use of implicit schemes, or the application of semi-Lagrangian (SL) techniques, [14], [30] to the advection step, coupled to implicit methods for the diffusion and reaction step. As discussed in [12], [13], SL methods have the advantage that all the computational work that makes them computationally more expensive per time step than standard Eulerian techniques is indeed independent of the number of tracers, which allows to achieve easily a superior efficiency level in the limit of a large number of tracers.…”
Section: Introductionmentioning
confidence: 99%