High-Speed Numerical Simulation of Shielding Current Analysis in Crack-Free HTS Thin Film: Improvement of ICCGH Method

By improving the
$H$
-matrix-based preconditioning, the CG method with the
$H$
-matrix-based acceleration technique (ICCGH method) has been modified. In addition, the performance of the modified ICCGH method has been evaluated numerically. The computation results show that the modified ICCGH method is faster than not only the standard CG method but also the conventional ICCGH method. It is concluded that the modified ICCGH method might be useful to speed up the shielding current analysis of the crack-free HTS thin film.