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Persistent URL http://purl.org/net/epubs/work/29577
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Record Id 29577
Title The design of a block rational Lanczos code with partial reorthogonalization and implicit restarting
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Abstract We discuss the design and development of a new Fortran code EA16 for the computation of selected eigenvalues and eigenvectors of large-scale real symmetric eigenvalue problems. EA16 can be used for either the standard or the generalized eigenvalue problem. The underlying method used by EA16 is the block Lanczos method with partial reorthogonalization plus implicit restarting, combined with purging and locking of converged Ritz pairs. A spectral transformation may optionally be used. The code allows a change of pole via the rational Lanczos method. Particular attention is paid to the solution of generalized eigenvalue problems with a singular mass matrix.
Organisation CCLRC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report RAL Technical Reports RAL-TR-2000-011. 2000. raltr-2000011.pdf 2000
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