TY  - CONF
AU  - Di Napoli, Edoardo
AU  - Winkelmann, Jan
AU  - Kollnig, Konrad
TI  - Optimizing rational filters for interior eigenvalue solvers
M1  - FZJ-2019-06911
PY  - 2019
AB  - Rational filter functions can be used to improve the convergence of the so-called contour-based eigensolvers, a popular family of algorithms for the solution of the interior eigenvalue problem. This talk provide an overview on how such filters can be optimized for performance and convergence based on a non-convex weighted Least-Square scheme.The net result is an almost parameter-free minimization framework with an enhanced usability and productivity which leads to rational functions outperforming state-of-art filters.
T2  - SPPEXA Final Symposium 2019
CY  - 21 Oct 2019 - 23 Oct 2019, Dresden (Germany)
Y2  - 21 Oct 2019 - 23 Oct 2019
M2  - Dresden, Germany
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/868382
ER  -