]> https://gitweb.dealii.org/ - dealii.git/commitdiff
Changelog 13792/head
authorMartin Kronbichler <martin.kronbichler@uni-a.de>
Mon, 23 May 2022 12:15:06 +0000 (14:15 +0200)
committerMartin Kronbichler <martin.kronbichler@uni-a.de>
Mon, 23 May 2022 16:02:04 +0000 (18:02 +0200)
doc/news/changes/minor/20220523Kronbichler [new file with mode: 0644]

diff --git a/doc/news/changes/minor/20220523Kronbichler b/doc/news/changes/minor/20220523Kronbichler
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+New: PreconditionChebyshev can now also estimate eigenvalues with the power
+method, rather than the Lanczos algorithm underlying the SolverCG
+estimation. This is useful for matrices that are slightly non-symmetric such
+that the eigenvalue estimate of SolverCG breaks down, but not too much so that
+the Chebyshev iteration is still a useful iteration.
+<br>
+(Martin Kronbichler, 2022/05/23)

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