Methods toward better Multigrid Solver Convergence
Abstract
I present a motivation of several areas where the Multigrid techniques can be employed. I present typical areas where the multigrid solver might be employed. I give an introduction to smoothers and how one might choose a preconditionor as well as an introduction of the Multigrid technique used. Then I do a study of the Multigrid technique while adjusting the environment conditions of the solver and the problem such as anisotropies, the grid-levels used, the preconditionor smoothing steps, the coordinate system and the start vector. The problem solved here was a simple Poisson problem. The Multigrid program used an F-cycle in this paper. I include performance study sections displaying results of the solver behavior under the different conditions.
Keywords
Cite
@article{arxiv.0805.3041,
title = {Methods toward better Multigrid Solver Convergence},
author = {John T. Wallis},
journal= {arXiv preprint arXiv:0805.3041},
year = {2008}
}
Comments
10 pages