OREANDA-NEWS. Fujitsu announced the immediate release in Japan of FUJITSU Manufacturing Industry Solution EXAMAG LLG Simulator V1, the world's first commercial magnetic simulation software package, which is compatible with massively parallel computing.

In addition to incorporating massively parallel computing techniques that have been refined over many years by Fujitsu Limited and Fujitsu Laboratories Limited, the new software combines micromagnetics with a finite-element method. This enables the analysis on a PC server of complexly structured magnetic materials with dozens of times more volume than could previously be analyzed.

Furthermore, this software can be used to develop new magnetic materials or to design magnetic devices, helping cut down on the number of physical prototypes needed, thereby contributing to reduced environmental impact.

Magnetic materials are widely used in magnetic devices, such as the magnetic heads of hard disk drives, memory devices, DC/DC converters, and wireless charging systems. Achieving optimal designs for these devices that meet demands for high functionality and efficiency by taking into consideration the properties of magnetic materials has become a significant challenge. For example, stability is just as critical as recording and play-back performance in the magnetic head of a hard drive, necessitating analysis of the magnetic characteristics of magnetic materials as well as the microstructure of the device.

Micromagnetics, which enables the analysis of the microstructure within magnetic materials, is the optimal way of performing such an analysis. This method, however, not only requires the magnetic materials to be divided into extremely small regions on the order of several atoms in length, it had, up until now, also required the use of an orthogonal grid, posing calculation limitations in the case of complex structures. As a result, this method could not be fully utilized.

To overcome these issues, in addition to implementing massively parallel computing functionality, the new software combines micromagnetics with a finite-element method, enabling it to handle magnetic materials with complex structures, and thereby making it possible to perform large-scale micromagnetic simulations.