%0 Journal Article
%A Kakay, A.
%A Westphal, E.
%A Hertel, R.
%T Speedup of FEM Micromagnetic Simulations With Graphical Processing Units
%J IEEE transactions on magnetics
%V 46
%@ 0018-9464
%C New York, NY
%I IEEE
%M PreJuSER-14468
%P 2303 - 2306
%D 2010
%Z Record converted from VDB: 12.11.2012
%X We have adapted our finite element micromagnetic simulation software to the massively parallel architecture of graphical processing units (GPUs) with double-precision floating point accuracy. Using the example of mu MAG Standard Problem #4 with different numbers of discretization points, we demonstrate the high speed performance of a single GPU compared with an OpenMP-parallelized version of the code using eight CPUs. The adaption of both the magnetostatic field calculation and the time integration of the Landau-Lifshitz-Gilbert equation routines can lead to a speedup factor of up to four. The gain in computation performance of the GPU code increases with increasing number of discretization nodes. The computation time required for high-resolution micromagnetic simulations of the magnetization dynamics in large magnetic samples can thus be reduced effectively by employing GPUs.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000278037800266
%R 10.1109/TMAG.2010.2048016
%U https://juser.fz-juelich.de/record/14468