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| Title | Preconditioned Krylov Solvers on GPUs |
| Publication Type | Journal Article |
| Year of Publication | 2017 |
| Authors | Anzt, H., M. Gates, J. Dongarra, M. Kreutzer, G. Wellein, and M. Kohler |
| Journal | Parallel Computing |
| Date Published | 2017-06 |
| ISSN | 01678191 |
| Keywords | gpu, ILU, Jacobi, Krylov solvers, Preconditioning |
| Abstract | In this paper, we study the effect of enhancing GPU-accelerated Krylov solvers with preconditioners. We consider the BiCGSTAB, CGS, QMR, and IDR(s) Krylov solvers. For a large set of test matrices, we assess the impact of Jacobi and incomplete factorization preconditioning on the solvers’ numerical stability and time-to-solution performance. We also analyze how the use of a preconditioner impacts the choice of the fastest solver. |
| URL | http://www.sciencedirect.com/science/article/pii/S0167819117300777 |
| DOI | 10.1016/j.parco.2017.05.006 |
| Short Title | Parallel Computing |
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