Abstract
The paper presents a novel parallelized micromagnetic solver, engineered to run on massively parallel architectures based on graphical processing units and thus suitable for the efficient simulation of large magnetic nanostructures. The code adopts a multipole expansion technique for the evaluation of long-range magnetostatic interactions and enables the calculation of the exchange field also on non-structured meshes. Its computational performances are here tested in the simulation of the hysteresis loops of dot array films with maximum size in the order of 5 μm.
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