From: Martin Kronbichler Date: Sat, 14 Mar 2020 21:57:25 +0000 (+0100) Subject: Changelog X-Git-Tag: v9.2.0-rc1~342^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F9656%2Fhead;p=dealii.git Changelog --- diff --git a/doc/news/changes/minor/20200314MartinKronbichler b/doc/news/changes/minor/20200314MartinKronbichler new file mode 100644 index 0000000000..2b8f85a942 --- /dev/null +++ b/doc/news/changes/minor/20200314MartinKronbichler @@ -0,0 +1,8 @@ +Improved: The initialization of the mapping part of MatrixFree for mappings of +type MappingQGeneric or derived classes has been made much faster. Apart from +a single query per cell for the geometry via the MappingQGeneric class, all +interpolations to metric terms at quadrature points are now done with +matrix-free routines using sum factorization, providing similar performance as +an operator evaluation. +
+(Martin Kronbichler, 2020/03/14) diff --git a/doc/news/changes/minor/20200314MartinKronbichler-b b/doc/news/changes/minor/20200314MartinKronbichler-b new file mode 100644 index 0000000000..557fc84d7d --- /dev/null +++ b/doc/news/changes/minor/20200314MartinKronbichler-b @@ -0,0 +1,8 @@ +Improved: The detection of compression in the mapping data structures of +MatrixFree has been made more general. It can now also detect when two cells +(not necessarily adjacent ones) are translations of each other, so that the +same set of Jacobians can be used on both. This helps the performance of +matrix-free operator evaluation in case the geometry fits into processor +caches and the operation is memory-bandwidth limited. +
+(Martin Kronbichler, 2020/03/14)