From: bangerth Date: Mon, 15 Nov 2010 01:58:02 +0000 (+0000) Subject: Say something about hypre. X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f3b787c45ea5916eddd4daa2b4fbcf9849587f2;p=dealii-svn.git Say something about hypre. git-svn-id: https://svn.dealii.org/trunk@22736 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/examples/step-40/doc/intro.dox b/deal.II/examples/step-40/doc/intro.dox index 411124ed1b..5e098c7890 100644 --- a/deal.II/examples/step-40/doc/intro.dox +++ b/deal.II/examples/step-40/doc/intro.dox @@ -16,6 +16,11 @@ California Institute of Technology. p4est library installed. The installation of deal.II together with these two additional libraries is described in the README file. Note also that +to work properly, this program needs access to the Hypre +preconditioner package implementing algebraic multigrid; it can be +installed as part of PETSc but has to be explicitly enabled during +PETSc configuration; see the page linked to from the installation +instructions for PETSc. Finally, note that PETSc appears not to co-operate well when using threads and the program crashes when deal.II is compiled in its usual mode supporting multithreading. The program can therefore only be compiled and run