TY  - JOUR
AU  - Kreienbuehl, Andreas
AU  - Naegel, Arne
AU  - Ruprecht, Daniel
AU  - Speck, Robert
AU  - Wittum, Gabriel
AU  - Krause, Rolf
TI  - Numerical simulation of skin transport using Parareal
JO  - Computing and visualization in science
VL  - 17
IS  - 2
SN  - 1433-0369
CY  - Berlin
PB  - Springer
M1  - FZJ-2016-00674
SP  - 99 - 108
PY  - 2015
AB  - In silico investigation of skin permeation is an important but also computationally demanding problem. To resolve all scales involved in full detail will not only require exascale computing capacities but also suitable parallel algorithms. This article investigates the applicability of the time-parallel Parareal algorithm to a brick and mortar setup, a precursory problem to skin permeation. The C++ library Lib4PrM implementing Parareal is combined with the UG4 simulation framework, which provides the spatial discretization and parallelization. The combination’s performance is studied with respect to convergence and speedup. It is confirmed that anisotropies in the domain and jumps in diffusion coefficients only have a minor impact on Parareal’s convergence. The influence of load imbalances in time due to differences in number of iterations required by the spatial solver as well as spatio-temporal weak scaling is discussed.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000365114200005
DO  - DOI:10.1007/s00791-015-0246-y
UR  - https://juser.fz-juelich.de/record/280963
ER  -