From: frohne <frohne@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Sun, 31 Mar 2013 00:56:52 +0000 (+0000)
Subject: fixed stopping rule in solve_newton ()
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c87e227128441e253af81cf64d53a9cf897ab654;p=dealii-svn.git

fixed stopping rule in solve_newton ()

git-svn-id: https://svn.dealii.org/trunk@29120 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/examples/step-42/step-42.cc b/deal.II/examples/step-42/step-42.cc
index 37d5905fa7..d6c50ee10b 100644
--- a/deal.II/examples/step-42/step-42.cc
+++ b/deal.II/examples/step-42/step-42.cc
@@ -1353,16 +1353,15 @@ namespace Step42
               break;
           }
 
-        if (resid<1e-8)
-          break;
-
         resid_old=resid;
 
         resid_vector = system_rhs_newton;
         resid_vector.compress (VectorOperation::insert);
 
-        if (active_set == active_set_old && resid < 1e-10)
-          break;
+        int is_my_set_changed = (active_set == active_set_old)?0:1;
+        int num_changed = Utilities::MPI::sum(is_my_set_changed, MPI_COMM_WORLD);
+        if (num_changed==0 && resid < 1e-8)
+                   break;
         active_set_old = active_set;
       } // End of active-set-loop