Zobrazeno 1 - 10
of 2 893
pro vyhledávání: '"A. Koestler"'
Purpose: Introducing "compensated variable-prephasing" (CVP), a phantom-based method for gradient waveform measurements. The technique is based on the "variable-prephasing" (VP) method, but takes into account the effects of all gradients involved in
Externí odkaz:
http://arxiv.org/abs/2409.07203
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
Event cameras offer the exciting possibility of tracking the camera's pose during high-speed motion and in adverse lighting conditions. Despite this promise, existing event-based monocular visual odometry (VO) approaches demonstrate limited performan
Externí odkaz:
http://arxiv.org/abs/2312.09800
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
Purpose: To examine whether an advanced gradient pre-emphasis approach based on the gradient system transfer function (GSTF) can mitigate artifacts caused by residual unbalanced gradients in Cartesian balanced steady-state free precession (bSSFP) ima
Externí odkaz:
http://arxiv.org/abs/2307.01594
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