Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Köstler, Harald"'
We implement and analyse a sparse / indirect-addressing data structure for the Lattice Boltzmann Method to support efficient compute kernels for fluid dynamics problems with a high number of non-fluid nodes in the domain, such as in porous media flow
Externí odkaz:
http://arxiv.org/abs/2408.06880
Autor:
Böhm, Fabian, Bauer, Daniel, Kohl, Nils, Alappat, Christie, Thönnes, Dominik, Mohr, Marcus, Köstler, Harald, Rüde, Ulrich
This paper introduces a code generator designed for node-level optimized, extreme-scalable, matrix-free finite element operators on hybrid tetrahedral grids. It optimizes the local evaluation of bilinear forms through various techniques including tab
Externí odkaz:
http://arxiv.org/abs/2404.08371
This paper presents a novel method designed to generate multigrid solvers optimized for octree-based software frameworks. Our approach focuses on accurately capturing local features within a domain while leveraging the efficiency inherent in multigri
Externí odkaz:
http://arxiv.org/abs/2403.08063
Autor:
Alt, Christoph, Lanser, Martin, Plewinski, Jonas, Janki, Atin, Klawonn, Axel, Köstler, Harald, Selzer, Michael, Rüde, Ulrich
Publikováno v:
International Journal of Parallel, Emergent & Distributed Systems, 2024
For scientific software, especially those used for large-scale simulations, achieving good performance and efficiently using the available hardware resources is essential. It is important to regularly perform benchmarks to ensure the efficient use of
Externí odkaz:
http://arxiv.org/abs/2403.01579
Autor:
Schottenhamml, Helen, Anciaux-Sedrakian, Ani, Blondel, Frédéric, Köstler, Harald, Rüde, Ulrich
Publikováno v:
Concurrency Computat Pract Exper. 2024;e8117
This article presents the development of a new wind turbine simulation software to study wake flow physics. To this end, the design and development of waLBerla-wind, a new simulator based on the lattice-Boltzmann method that is known for its excellen
Externí odkaz:
http://arxiv.org/abs/2402.13171
Heterogeneous computing and exploiting integrated CPU-GPU architectures has become a clear current trend since the flattening of Moore's Law. In this work, we propose a numerical and algorithmic re-design of a p-adaptive quadrature-free discontinuous
Externí odkaz:
http://arxiv.org/abs/2311.11348
Accurate price predictions are essential for market participants in order to optimize their operational schedules and bidding strategies, especially in the current context where electricity prices become more volatile and less predictable using class
Externí odkaz:
http://arxiv.org/abs/2306.10080
In recent years, it has become increasingly popular to accelerate numerical simulations using Graphics Processing Unit (GPU)s. In multiphysics simulations, the various combined methodologies may have distinctly different computational characteristics
Externí odkaz:
http://arxiv.org/abs/2303.11811
Autor:
Machado, Rafael Ravedutti Lucio, Eitzinger, Jan, Laukemann, Jan, Hager, Georg, Köstler, Harald, Wellein, Gerhard
Molecular dynamics (MD) simulations provide considerable benefits for the investigation and experimentation of systems at atomic level. Their usage is widespread into several research fields, but their system size and timescale are also crucially lim
Externí odkaz:
http://arxiv.org/abs/2302.14660
Autor:
Schwarzmeier, Christoph, Rettinger, Christoph, Kemmler, Samuel, Plewinski, Jonas, Núñez-González, Francisco, Köstler, Harald, Rüde, Ulrich, Vowinckel, Bernhard
Publikováno v:
Journal of Fluid Mechanics 961 (2023)
The interaction of supercritical turbulent flows with granular sediment beds is challenging to study both experimentally and numerically; this challenging task has hampered the advances in understanding antidunes, the most characteristic bedform of s
Externí odkaz:
http://arxiv.org/abs/2301.10674