From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Tue, 12 Oct 2021 13:10:08 +0000 (+0200)
Subject: Changelog entry
X-Git-Tag: v9.4.0-rc1~925^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b88a492809a9a9fd6ba6eceee548a84a4564cb2e;p=dealii.git

Changelog entry
---

diff --git a/doc/news/changes/minor/20211012MartinKronbichler b/doc/news/changes/minor/20211012MartinKronbichler
new file mode 100644
index 0000000000..d2b39a03b2
--- /dev/null
+++ b/doc/news/changes/minor/20211012MartinKronbichler
@@ -0,0 +1,6 @@
+Improved: PreconditionChebyshev can now run the vector updates on a part of
+the vector for better data locality. The prerequisite is an associated
+`MatrixType` class to provide a `vmult` class with two `std::function` objects
+to specify the operation before and after the matrix-vector product.
+<br>
+(Martin Kronbichler, 2021/10/12)