College of Science & Engineering
Twin Cities
This group performs calculations of magnetic properties useful for applications, particularly magnetic recording and microwave interactions with magnetic materials. They are using MSI to calculate quantities such as adjacent track erasure and user density, employing their micromagnetic Heat-Assisted Magnetic Recording simulation that uses renormalized media cells to represent the high temperature behavior. They are currently using the code to demonstrate the improved performance of pulsed laser recording, as opposed to the conventional continuous laser. This code is written partly in CUDA for use on GPUs with the overarching backbone (not highly computational) part written in Fortran or C (2 versions). The most computationally intensive part involves magnetostatic interactions between different parts of the recording media: it was extensively optimized, and the optimization techniques received an invited talk at a SIAM meeting, and were published in the IEEE Journal on Multiscale and Multiphysics Computational Techniques.