An Eigensolver for the Hermitian Dirac Operator with Multigrid Acceleration

Jun 29, 2017, 11:15 AM
30m
Talk

Speaker

Mr Artur Strebel (University of Wuppertal)

Description

In this talk we present a Davidson type eigensolver combined with the DD-$\alpha$AMG multigrid solver library. The basic Davidson method is adjusted to our multigrid method and the structure of the hermitian Dirac operator in a way that both methods benefit from each other.

We compare the resulting eigensolver with a Chebychev filtered Arnoldi method (PARPACK) and the multi purpose eigensolver library PRIMME based on a variety of scaling and performance studies.

Title An Eigensolver for the Hermitian Dirac Operator with Multigrid Acceleration

Primary authors

Mr Artur Strebel (University of Wuppertal) Dr Matthias Rottmann (University of Wuppertal) Prof. Andreas Frommer (University of Wuppertal) Dr Karsten Kahl (University of Wuppertal)

Presentation materials

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