127 citations · 764 across the 38 of their papers we have counts for
10 papers · 1 filter
A Python Extension for the Massively Parallel Multiphysics Simulation Framework waLBerla
Martin Bauer, Florian Schornbaum, Christian Godenschwager +4
We present a Python extension to the massively parallel HPC simulation toolkit waLBerla. waLBerla is a framework for stencil based algorithms operating on block-structured grids, w…
Solution Techniques for the Stokes System: A priori and a posteriori modifications, resilient algorithms
Markus Huber, Lorenz John, Petra Pustejovska +3
This article proposes modifications to standard low order finite element approximations of the Stokes system with the goal of improving both the approximation quality and the paral…
A quantitative performance analysis for Stokes solvers at the extreme scale
Björn Gmeiner, Markus Huber, Lorenz John +2
This article presents a systematic quantitative performance analysis for large finite element computations on extreme scale computing systems. Three parallel iterative solvers for…
Curvature estimation from a volume of fluid indicator function for the simulation of surface tension and wetting with a free surface lattice Boltzmann method
Simon Bogner, Ulrich Rüde, Jens Harting
The free surface lattice Boltzmann method (FSLBM) is a combination of the hydrodynamic lattice Boltzmann method (LBM) with a volume of fluid (VOF) interface apturing technique for…
Pore-scale lattice Boltzmann simulation of laminar and turbulent flow through a sphere pack
Ehsan Fattahia, Christian Waluga, Barbara Wohlmuth +3
The lattice Boltzmann method can be used to simulate flow through porous media with full geometrical resolution. With such a direct numerical simulation, it becomes possible to stu…
Massively Parallel Algorithms for the Lattice Boltzmann Method on Non-uniform Grids
Florian Schornbaum, Ulrich Rüde
The lattice Boltzmann method exhibits excellent scalability on current supercomputing systems and has thus increasingly become an alternative method for large-scale non-stationary…
Large scale lattice Boltzmann simulation for the coupling of free and porous media flow
Ehsan Fattahi, Christian Waluga, Barbara Wohlmuth +1
In this work, we investigate the interaction of free and porous media flow by large scale lattice Boltzmann simulations. We study the transport phenomena at the porous interface on…
Resilience for Multigrid Software at the Extreme Scale
Markus Huber, Björn Gmeiner, Ulrich Rüde +1
Fault tolerant algorithms for the numerical approximation of elliptic partial differential equations on modern supercomputers play a more and more important role in the future desi…
Resilience for Exascale Enabled Multigrid Methods
Markus Huber, Björn Gmeiner, Ulrich Rüde +1
With the increasing number of components and further miniaturization the mean time between faults in supercomputers will decrease. System level fault tolerance techniques are expen…
Ultrascale Simulations of Non-smooth Granular Dynamics
Tobias Preclik, Ulrich Rüde
This article presents new algorithms for massively parallel granular dynamics simulations on distributed memory architectures using a domain partitioning approach. Collisions are m…