Fixed problem in which grid refinement on partition domains (parallel) kept

hanging  because refinement criterion satisfied on one partition but not
another.
Fixed by including appropriate MPI collect in setEstMax() and setEstSum()
methods. So satisfaction of criterion is global not local.

AMDiS/src/AdaptInfo.h

@@ -389,12 +389,24 @@ namespace AMDiS {
     /// Sets \ref est_sum.
     inline void setEstSum(double e, int index) 
     {
+#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
+    double send_est_sum = e;
+    double est_sum = 0.0;
+    MPI::COMM_WORLD.Allreduce(&send_est_sum, &est_sum, 1, MPI_DOUBLE, MPI_SUM);
+    e = est_sum;
+#endif
       scalContents[index]->est_sum = e;
     }
 
     /// Sets \ref est_max.
     inline void setEstMax(double e, int index) 
     {
+#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
+    double send_est_max = e;
+    double est_max = 0.0;
+    MPI::COMM_WORLD.Allreduce(&send_est_max, &est_max, 1, MPI_DOUBLE, MPI_MAX);
+    e = est_max;
+#endif
       scalContents[index]->est_max = e;
     }