Abstract
The design, validation and performance of Grace, a GPU-accelerated micromagnetic simulation software, are presented. The software adopts C+ + Accelerated Massive Parallelism (C+ + AMP) so that it runs on GPUs from various hardware vendors including NVidia, AMD and Intel. At large simulation scales, up to two orders of magnitude of speedup factor is observed, compared to CPU-based micromagnetic simulation software OOMMF. The software can run on high-end professional GPUs as well as budget personal laptops, and is free to download.
Highlights
There have been several research groups working on the GPU-accelerated micromagnetic simulation software.[1,2,3,4,5] The goal is to harness the parallel computing power of GPUs to speed up the micromagnetic simulation, which is predominated by finite difference or finite element calculations that can be parallelized
The software adopts C++ Accelerated Massive Parallelism (C++ AMP) so that it runs on GPUs from various hardware vendors including NVidia, AMD and Intel
NVidia’s Compute Unified Device Architecture (CUDA) is used exclusively in the previously mentioned works, prohibiting the use of other widely available GPU platforms provided by vendors including AMD and Intel, such as AMD Radeon, FirePro, and Intel Xeon Phi
Summary
There have been several research groups working on the GPU-accelerated micromagnetic simulation software.[1,2,3,4,5] The goal is to harness the parallel computing power of GPUs to speed up the micromagnetic simulation, which is predominated by finite difference or finite element calculations that can be parallelized. NVidia’s Compute Unified Device Architecture (CUDA) is used exclusively in the previously mentioned works, prohibiting the use of other widely available GPU platforms provided by vendors including AMD and Intel, such as AMD Radeon, FirePro, and Intel Xeon Phi. In this work, Grace, a cross-hardware platform GPU-accelerated micromagnetic simulation software based on C++ AMP, is presented, which speeds up the simulation time by up to two orders of magnitudes, as compared CPU-based micromagnetic simulation software OOMMF.
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