Parallel Eigenvalue Computation for Banded Generalized Eigenvalue Problems
Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Rippl, Michael; Lang, Bruno; Huckle, Thomas
Abstract:
We consider generalized eigenvalue problems $Ax=Bx\lambda$ with banded hermitian matrix $A$ and hermitian positive definite $B$. To reduce the generalized eigenvalue problem to standard form $Cy=y\lambda$ the algorithm proposed by Crawford is applied preserving the banded structure in $C$. We present a parallel implementation of this method included in the ELPA library. Numerical experiments show the advantages of this approach compared to standard solvers.
Kongresstitel:
International Workshop on Parallel Matrix Algorithms and Applications