]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Say something about hypre.
authorbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 15 Nov 2010 01:58:02 +0000 (01:58 +0000)
committerbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 15 Nov 2010 01:58:02 +0000 (01:58 +0000)
git-svn-id: https://svn.dealii.org/trunk@22736 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/examples/step-40/doc/intro.dox

index 411124ed1b0c00e0e8b7474f6b162aac4b43b508..5e098c78907f2a0b7cd8c7086a06818a0c5fb59a 100644 (file)
@@ -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 <a
 href="../../readme.html" target="body">README</a> 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

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