From: David Wells <drwells@email.unc.edu>
Date: Tue, 23 Oct 2018 02:15:01 +0000 (-0400)
Subject: step-27: Lower the linear solver tolerance.
X-Git-Tag: v9.1.0-rc1~603^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7371%2Fhead;p=dealii.git

step-27: Lower the linear solver tolerance.

This makes the pictures symmetric.
---

diff --git a/examples/step-27/step-27.cc b/examples/step-27/step-27.cc
index 6f9934284f..1f87b2e4fe 100644
--- a/examples/step-27/step-27.cc
+++ b/examples/step-27/step-27.cc
@@ -379,7 +379,7 @@ namespace Step27
   void LaplaceProblem<dim>::solve()
   {
     SolverControl solver_control(system_rhs.size(),
-                                 1e-8 * system_rhs.l2_norm());
+                                 1e-12 * system_rhs.l2_norm());
     SolverCG<>    cg(solver_control);
 
     PreconditionSSOR<> preconditioner;