MuMax：一种新的高性能微磁模拟工具
MuMax: a new high-performance micromagnetic simulation tool
摘要：
我们提出了MuMax，一个通用的微磁模拟工具上运行的图形处理单元（GPU）。MuMax专为高性能计算而设计，特别针对大型模拟。在这种情况下，与NIST开发的基于CPU的OOMMF程序相比，可以轻松获得100倍以上的加速比。MuMax的目标是通用和广泛适用。它解决了经典的Landau-Lifshitz方程考虑到静磁，交换和各向异性的相互作用，热效应和自旋转移力矩。可以选择性地施加周期性边界条件。可以采用使用二维或三维中的有限差分的空间离散化。MuMax作为开源软件公开提供。因此，社区可以自由使用和扩展。由于其高计算性能，MuMax应该开辟了运行广泛的模拟的可能性，这将是典型的基于CPU的模拟器几乎无法访问。
英文摘要：
We present MuMax, a general-purpose micromagnetic simulation tool running on Graphical Processing Units (GPUs). MuMax is designed for high performance computations and specifically targets large simulations. In that case speedups of over a factor 100x can easily be obtained compared to the CPU-based OOMMF program developed at NIST. MuMax aims to be general and broadly applicable. It solves the classical Landau-Lifshitz equation taking into account the magnetostatic, exchange and anisotropy interactions, thermal effects and spin-transfer torque. Periodic boundary conditions can optionally be imposed. A spatial discretization using finite differences in 2 or 3 dimensions can be employed. MuMax is publicly available as open source software. It can thus be freely used and extended by community. Due to its high computational performance, MuMax should open up the possibility of running extensive simulations that would be nearly inaccessible with typical CPU-based simulators.
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