Dresden 2017 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 1: Tutorial: Micromagnetic Simulations
MA 1.1: Tutorium
Sonntag, 19. März 2017, 16:00–16:45, HSZ 401
An overview of mumax3 with a spotlight on its newest features — Arne Vansteenkiste1, •Jonathan Leliaert1, Mykola Dvornik2, Mathias Helsen1, Felipe Garcia-Sanchez3, and Bartel Van Waeyenberge1 — 1Ghent University, Ghent, Belgium — 2University of Gothenburg, Gothenburg, Sweden — 3INRIM, Turin, Italy
In this talk an overview is given of the GPU-accelerated micromagnetic software package MuMax3, developed at the DyNaMat group at Ghent University. This software solves the time- and space dependent evolution of the magnetization on the nano- to micro scale using a finite-difference discretization. Its high performance and low memory requirements allow for large-scale simulations to be performed in limited time and on inexpensive hardware. We begin with a short introduction to micromagnetism. Next, with the help of live demos, it is shown how to use this software either in its user-friendly web-interface, or via input-files for more complex simulations. Finally, we introduce three new features: first, mumax3-server allows to share simulations between different computers to efficiently execute large batches of simulations. Second, the adaptive time-step algorithm was extended to also simulate nonzero temperatures with optimal performance. Third, we present the possibility to include custom energy terms increases the users* freedom to add more *exotic* energy terms, not present in standard packages, to their simulations.