From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Fri, 8 Feb 2019 15:33:10 +0000 (+0100)
Subject: Add changelog.
X-Git-Tag: v9.1.0-rc1~359^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7708%2Fhead;p=dealii.git

Add changelog.
---

diff --git a/doc/news/changes/minor/20190208MartinKronbichler b/doc/news/changes/minor/20190208MartinKronbichler
new file mode 100644
index 0000000000..3a12e97374
--- /dev/null
+++ b/doc/news/changes/minor/20190208MartinKronbichler
@@ -0,0 +1,8 @@
+Fixed: PreconditionChebyshev would previously run one iteration more than
+requested, i.e., perform `degree+1` matrix-vector products rather than
+`degree` which is the convention in literature. This is now fixed. Note that
+the quality of PreconditionChebyshev is obviously slightly reduced by this
+change, and some solvers might need more outer iterations due to a ligher
+Chebyshev iteration.
+<br>
+(Martin Kronbichler, 2019/02/08)