5 papers
Partitioned Coupling vs. Monolithic Block-Preconditioning Approaches for Solving Stokes-Darcy Systems
Jenny Schmalfuss, Cedric Riethmüller, Mirco Altenbernd +2
We consider the time-dependent Stokes-Darcy problem as a model case for the challenges involved in solving coupled systems. Keeping the model, its discretization, and the underlyin…
Exa-Dune -- Flexible PDE Solvers, Numerical Methods and Applications
Peter Bastian, Mirco Altenbernd, Nils-Arne Dreier +13
In the Exa-Dune project we have developed, implemented and optimised numerical algorithms and software for the scalable solution of partial differential equations (PDEs) on future…
Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems
Marius Brehler, Malte Schirwon, Peter M. Krummrich +1
Mode-division multiplexing (MDM) is seen as a possible solution to satisfy the rising capacity demands of optical communication networks. To make MDM a success, fibers supporting t…
A high-level C++ approach to manage local errors, asynchrony and faults in an MPI application
Christian Engwer, Mirco Altenbernd, Nils-Arne Dreier +1
C++ advocates exceptions as the preferred way to handle unexpected behaviour of an implementation in the code. This does not integrate well with the error handling of MPI, which mo…
Towards realistic HPC models of the neuromuscular system
Chris Bradley, Nehzat Emamy, Thomas Ertl +9
Realistic simulations of detailed, biophysics-based, multi-scale models require very high resolution and, thus, large-scale compute facilities. Existing simulation environments, es…