Efficient smoothers for all-at-once multigrid methods for Poisson and Stokes control problems
In the present paper we concentrate on an important issue in constructing a good multigrid solver: the choice of an efficient smoother. We will introduce all-at-once multigrid solvers for optimal control problems which show robust convergence in the grid size and in the regularization parameter. We...
| Autor principal: | |
|---|---|
| Formato: | Report |
| Publicado: |
Unspecified
2013
|