Abstract
We extend the hierarchical transformation multigrid (HT-MG) method with semi-coarsening in space and time in order to tackle anisotropic problems. Semi-coarsening allows us to smooth on anisotropic grids and, thus to employ more advanced multigrid cycles, e.g. the so-called Q-cycle. Our numerical examples show that we can tackle anisotropic problems with the HT-MG method and the Q-cycle. We do not only apply the multigrid method in space directions but also in time directions where the Q-cycle is beneficial again.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2000-2003 |
| Number of pages | 4 |
| Journal | Procedia Computer Science |
| Volume | 9 |
| DOIs | |
| State | Published - 2012 |
| Event | 12th Annual International Conference on Computational Science, ICCS 2012 - Omaha, NB, United States Duration: Jun 4 2012 → Jun 6 2012 |
Keywords
- Anisotropic problems
- Multigrid
- Semi-coarsening
- Time-space discretization
ASJC Scopus subject areas
- General Computer Science