PETScWrappers::TimeStepper: add missing tests for callbacks

diff --git a/tests/petsc/petsc_ts_03.cc b/tests/petsc/petsc_ts_03.cc
index 0a697e2a5bd93a1c0e6b245730f1cff74ec26bb0..d98fd0b03ee1f83bf30a1be11e184f7d5a79648b 100644 (file)
--- a/tests/petsc/petsc_ts_03.cc
+++ b/tests/petsc/petsc_ts_03.cc
@@ -49,6 +49,8 @@
  * solution is completely on users. In this case
  * users are in charge of solving for the
  * implicit Jacobian.
+ * Here we also test the functionalities of the
+ * various user callbacks available.
  * The model used to wrap PETSc's TS is the same
  * used for the nonlinear solver SNES. Check
  * petsc_snes_00.cc for additional information.
@@ -168,6 +170,31 @@ public:
       deallog << "  y =" << sol[0] << "  (exact: " << std::exp(-kappa * t)
               << ')' << std::endl;
     };
+
+    // This callback is invoked after a successfull stage.
+    // Here we only print that the callback is invoked.
+    time_stepper.distribute = [&](const real_type t, VectorType &) -> void {
+      deallog << "Distribute at time " << t << std::endl;
+    };
+
+    // This callback is used to decide to remesh.
+    time_stepper.prepare_for_coarsening_and_refinement =
+      [&](const real_type    t,
+          const unsigned int step,
+          const VectorType &,
+          bool &resize) -> void {
+      deallog << "Prepare at time " << t << " and step " << step << std::endl;
+      resize = (step && step % 5 == 0);
+    };
+
+    // This callback is called if prepare_for_coarsening_and_refinement sets
+    // resize to true.
+    time_stepper.interpolate = [&](const std::vector<VectorType> &all_in,
+                                   std::vector<VectorType> &all_out) -> void {
+      deallog << "Interpolate" << std::endl;
+      for (auto &v : all_in)
+        all_out.push_back(v);
+    };
   }
 
   void

diff --git a/tests/petsc/petsc_ts_03.output b/tests/petsc/petsc_ts_03.output
index d6ba3e381c640ceaeff392108998b6b80485f6c6..3d15012bcbd9b4cee621bded088993b79e4a8606 100644 (file)
--- a/tests/petsc/petsc_ts_03.output
+++ b/tests/petsc/petsc_ts_03.output
@@ -43,10 +43,13 @@ DEAL::Evaluating explicit function at t=0.100000
 DEAL::Evaluating explicit function at t=0.100000
 DEAL::Evaluating explicit function at t=0.100000
 DEAL::Evaluating explicit function at t=0.100000
+DEAL::Distribute at time 0.100000
 DEAL::Evaluating explicit function at t=0.200000
 DEAL::Evaluating explicit function at t=0.200000
 DEAL::Evaluating explicit function at t=0.200000
 DEAL::Evaluating explicit function at t=0.200000
+DEAL::Distribute at time 0.200000
+DEAL::Prepare at time 0.200000 and step 1
 DEAL::Intermediate output:
 DEAL::  t =0.200000
 DEAL::  y =0.823864  (exact: 0.818731)
@@ -54,6 +57,8 @@ DEAL::Evaluating explicit function at t=0.400000
 DEAL::Evaluating explicit function at t=0.400000
 DEAL::Evaluating explicit function at t=0.400000
 DEAL::Evaluating explicit function at t=0.400000
+DEAL::Distribute at time 0.400000
+DEAL::Prepare at time 0.400000 and step 2
 DEAL::Intermediate output:
 DEAL::  t =0.400000
 DEAL::  y =0.675134  (exact: 0.670320)
@@ -61,6 +66,8 @@ DEAL::Evaluating explicit function at t=0.600000
 DEAL::Evaluating explicit function at t=0.600000
 DEAL::Evaluating explicit function at t=0.600000
 DEAL::Evaluating explicit function at t=0.600000
+DEAL::Distribute at time 0.600000
+DEAL::Prepare at time 0.600000 and step 3
 DEAL::Intermediate output:
 DEAL::  t =0.600000
 DEAL::  y =0.551962  (exact: 0.548812)
@@ -68,6 +75,8 @@ DEAL::Evaluating explicit function at t=0.800000
 DEAL::Evaluating explicit function at t=0.800000
 DEAL::Evaluating explicit function at t=0.800000
 DEAL::Evaluating explicit function at t=0.800000
+DEAL::Distribute at time 0.800000
+DEAL::Prepare at time 0.800000 and step 4
 DEAL::Intermediate output:
 DEAL::  t =0.800000
 DEAL::  y =0.450798  (exact: 0.449329)
@@ -75,6 +84,9 @@ DEAL::Evaluating explicit function at t=1.00000
 DEAL::Evaluating explicit function at t=1.00000
 DEAL::Evaluating explicit function at t=1.00000
 DEAL::Evaluating explicit function at t=1.00000
+DEAL::Distribute at time 1.00000
+DEAL::Prepare at time 1.00000 and step 5
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =1.00000
 DEAL::  y =0.368009  (exact: 0.367879)
@@ -82,6 +94,8 @@ DEAL::Evaluating explicit function at t=1.20000
 DEAL::Evaluating explicit function at t=1.20000
 DEAL::Evaluating explicit function at t=1.20000
 DEAL::Evaluating explicit function at t=1.20000
+DEAL::Distribute at time 1.20000
+DEAL::Prepare at time 1.20000 and step 6
 DEAL::Intermediate output:
 DEAL::  t =1.20000
 DEAL::  y =0.300364  (exact: 0.301194)
@@ -89,6 +103,8 @@ DEAL::Evaluating explicit function at t=1.40000
 DEAL::Evaluating explicit function at t=1.40000
 DEAL::Evaluating explicit function at t=1.40000
 DEAL::Evaluating explicit function at t=1.40000
+DEAL::Distribute at time 1.40000
+DEAL::Prepare at time 1.40000 and step 7
 DEAL::Intermediate output:
 DEAL::  t =1.40000
 DEAL::  y =0.245132  (exact: 0.246597)
@@ -96,6 +112,8 @@ DEAL::Evaluating explicit function at t=1.60000
 DEAL::Evaluating explicit function at t=1.60000
 DEAL::Evaluating explicit function at t=1.60000
 DEAL::Evaluating explicit function at t=1.60000
+DEAL::Distribute at time 1.60000
+DEAL::Prepare at time 1.60000 and step 8
 DEAL::Intermediate output:
 DEAL::  t =1.60000
 DEAL::  y =0.200048  (exact: 0.201897)
@@ -103,6 +121,8 @@ DEAL::Evaluating explicit function at t=1.80000
 DEAL::Evaluating explicit function at t=1.80000
 DEAL::Evaluating explicit function at t=1.80000
 DEAL::Evaluating explicit function at t=1.80000
+DEAL::Distribute at time 1.80000
+DEAL::Prepare at time 1.80000 and step 9
 DEAL::Intermediate output:
 DEAL::  t =1.80000
 DEAL::  y =0.163253  (exact: 0.165299)
@@ -110,6 +130,9 @@ DEAL::Evaluating explicit function at t=2.00000
 DEAL::Evaluating explicit function at t=2.00000
 DEAL::Evaluating explicit function at t=2.00000
 DEAL::Evaluating explicit function at t=2.00000
+DEAL::Distribute at time 2.00000
+DEAL::Prepare at time 2.00000 and step 10
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =2.00000
 DEAL::  y =0.133225  (exact: 0.135335)
@@ -117,6 +140,8 @@ DEAL::Evaluating explicit function at t=2.20000
 DEAL::Evaluating explicit function at t=2.20000
 DEAL::Evaluating explicit function at t=2.20000
 DEAL::Evaluating explicit function at t=2.20000
+DEAL::Distribute at time 2.20000
+DEAL::Prepare at time 2.20000 and step 11
 DEAL::Intermediate output:
 DEAL::  t =2.20000
 DEAL::  y =0.108719  (exact: 0.110803)
@@ -129,10 +154,13 @@ DEAL::Evaluating implicit function at t=0.100000
 DEAL::Evaluating implicit function at t=0.100000
 DEAL::Evaluating implicit function at t=0.100000
 DEAL::Evaluating implicit function at t=0.100000
+DEAL::Distribute at time 0.100000
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Evaluating implicit function at t=0.200000
+DEAL::Distribute at time 0.200000
+DEAL::Prepare at time 0.200000 and step 1
 DEAL::Intermediate output:
 DEAL::  t =0.200000
 DEAL::  y =0.823864  (exact: 0.818731)
@@ -140,6 +168,8 @@ DEAL::Evaluating implicit function at t=0.400000
 DEAL::Evaluating implicit function at t=0.400000
 DEAL::Evaluating implicit function at t=0.400000
 DEAL::Evaluating implicit function at t=0.400000
+DEAL::Distribute at time 0.400000
+DEAL::Prepare at time 0.400000 and step 2
 DEAL::Intermediate output:
 DEAL::  t =0.400000
 DEAL::  y =0.675134  (exact: 0.670320)
@@ -147,6 +177,8 @@ DEAL::Evaluating implicit function at t=0.600000
 DEAL::Evaluating implicit function at t=0.600000
 DEAL::Evaluating implicit function at t=0.600000
 DEAL::Evaluating implicit function at t=0.600000
+DEAL::Distribute at time 0.600000
+DEAL::Prepare at time 0.600000 and step 3
 DEAL::Intermediate output:
 DEAL::  t =0.600000
 DEAL::  y =0.551962  (exact: 0.548812)
@@ -154,6 +186,8 @@ DEAL::Evaluating implicit function at t=0.800000
 DEAL::Evaluating implicit function at t=0.800000
 DEAL::Evaluating implicit function at t=0.800000
 DEAL::Evaluating implicit function at t=0.800000
+DEAL::Distribute at time 0.800000
+DEAL::Prepare at time 0.800000 and step 4
 DEAL::Intermediate output:
 DEAL::  t =0.800000
 DEAL::  y =0.450798  (exact: 0.449329)
@@ -161,6 +195,9 @@ DEAL::Evaluating implicit function at t=1.00000
 DEAL::Evaluating implicit function at t=1.00000
 DEAL::Evaluating implicit function at t=1.00000
 DEAL::Evaluating implicit function at t=1.00000
+DEAL::Distribute at time 1.00000
+DEAL::Prepare at time 1.00000 and step 5
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =1.00000
 DEAL::  y =0.368009  (exact: 0.367879)
@@ -168,6 +205,8 @@ DEAL::Evaluating implicit function at t=1.20000
 DEAL::Evaluating implicit function at t=1.20000
 DEAL::Evaluating implicit function at t=1.20000
 DEAL::Evaluating implicit function at t=1.20000
+DEAL::Distribute at time 1.20000
+DEAL::Prepare at time 1.20000 and step 6
 DEAL::Intermediate output:
 DEAL::  t =1.20000
 DEAL::  y =0.300364  (exact: 0.301194)
@@ -175,6 +214,8 @@ DEAL::Evaluating implicit function at t=1.40000
 DEAL::Evaluating implicit function at t=1.40000
 DEAL::Evaluating implicit function at t=1.40000
 DEAL::Evaluating implicit function at t=1.40000
+DEAL::Distribute at time 1.40000
+DEAL::Prepare at time 1.40000 and step 7
 DEAL::Intermediate output:
 DEAL::  t =1.40000
 DEAL::  y =0.245132  (exact: 0.246597)
@@ -182,6 +223,8 @@ DEAL::Evaluating implicit function at t=1.60000
 DEAL::Evaluating implicit function at t=1.60000
 DEAL::Evaluating implicit function at t=1.60000
 DEAL::Evaluating implicit function at t=1.60000
+DEAL::Distribute at time 1.60000
+DEAL::Prepare at time 1.60000 and step 8
 DEAL::Intermediate output:
 DEAL::  t =1.60000
 DEAL::  y =0.200048  (exact: 0.201897)
@@ -189,6 +232,8 @@ DEAL::Evaluating implicit function at t=1.80000
 DEAL::Evaluating implicit function at t=1.80000
 DEAL::Evaluating implicit function at t=1.80000
 DEAL::Evaluating implicit function at t=1.80000
+DEAL::Distribute at time 1.80000
+DEAL::Prepare at time 1.80000 and step 9
 DEAL::Intermediate output:
 DEAL::  t =1.80000
 DEAL::  y =0.163253  (exact: 0.165299)
@@ -196,6 +241,9 @@ DEAL::Evaluating implicit function at t=2.00000
 DEAL::Evaluating implicit function at t=2.00000
 DEAL::Evaluating implicit function at t=2.00000
 DEAL::Evaluating implicit function at t=2.00000
+DEAL::Distribute at time 2.00000
+DEAL::Prepare at time 2.00000 and step 10
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =2.00000
 DEAL::  y =0.133225  (exact: 0.135335)
@@ -203,6 +251,8 @@ DEAL::Evaluating implicit function at t=2.20000
 DEAL::Evaluating implicit function at t=2.20000
 DEAL::Evaluating implicit function at t=2.20000
 DEAL::Evaluating implicit function at t=2.20000
+DEAL::Distribute at time 2.20000
+DEAL::Prepare at time 2.20000 and step 11
 DEAL::Intermediate output:
 DEAL::  t =2.20000
 DEAL::  y =0.108719  (exact: 0.110803)
@@ -214,69 +264,94 @@ DEAL::  y =1.00000  (exact: 1.00000)
 DEAL::Evaluating explicit function at t=0.100000
 DEAL::Evaluating explicit Jacobian at t=0.100000
 DEAL::Evaluating explicit function at t=0.100000
+DEAL::Distribute at time 0.100000
 DEAL::Evaluating explicit function at t=0.200000
 DEAL::Evaluating explicit Jacobian at t=0.200000
 DEAL::Evaluating explicit function at t=0.200000
+DEAL::Distribute at time 0.200000
+DEAL::Prepare at time 0.200000 and step 1
 DEAL::Intermediate output:
 DEAL::  t =0.200000
 DEAL::  y =0.823864  (exact: 0.818731)
 DEAL::Evaluating explicit function at t=0.400000
 DEAL::Evaluating explicit Jacobian at t=0.400000
 DEAL::Evaluating explicit function at t=0.400000
+DEAL::Distribute at time 0.400000
+DEAL::Prepare at time 0.400000 and step 2
 DEAL::Intermediate output:
 DEAL::  t =0.400000
 DEAL::  y =0.675134  (exact: 0.670320)
 DEAL::Evaluating explicit function at t=0.600000
 DEAL::Evaluating explicit Jacobian at t=0.600000
 DEAL::Evaluating explicit function at t=0.600000
+DEAL::Distribute at time 0.600000
+DEAL::Prepare at time 0.600000 and step 3
 DEAL::Intermediate output:
 DEAL::  t =0.600000
 DEAL::  y =0.551962  (exact: 0.548812)
 DEAL::Evaluating explicit function at t=0.800000
 DEAL::Evaluating explicit Jacobian at t=0.800000
 DEAL::Evaluating explicit function at t=0.800000
+DEAL::Distribute at time 0.800000
+DEAL::Prepare at time 0.800000 and step 4
 DEAL::Intermediate output:
 DEAL::  t =0.800000
 DEAL::  y =0.450798  (exact: 0.449329)
 DEAL::Evaluating explicit function at t=1.00000
 DEAL::Evaluating explicit Jacobian at t=1.00000
 DEAL::Evaluating explicit function at t=1.00000
+DEAL::Distribute at time 1.00000
+DEAL::Prepare at time 1.00000 and step 5
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =1.00000
 DEAL::  y =0.368009  (exact: 0.367879)
 DEAL::Evaluating explicit function at t=1.20000
 DEAL::Evaluating explicit Jacobian at t=1.20000
 DEAL::Evaluating explicit function at t=1.20000
+DEAL::Distribute at time 1.20000
+DEAL::Prepare at time 1.20000 and step 6
 DEAL::Intermediate output:
 DEAL::  t =1.20000
 DEAL::  y =0.300364  (exact: 0.301194)
 DEAL::Evaluating explicit function at t=1.40000
 DEAL::Evaluating explicit Jacobian at t=1.40000
 DEAL::Evaluating explicit function at t=1.40000
+DEAL::Distribute at time 1.40000
+DEAL::Prepare at time 1.40000 and step 7
 DEAL::Intermediate output:
 DEAL::  t =1.40000
 DEAL::  y =0.245132  (exact: 0.246597)
 DEAL::Evaluating explicit function at t=1.60000
 DEAL::Evaluating explicit Jacobian at t=1.60000
 DEAL::Evaluating explicit function at t=1.60000
+DEAL::Distribute at time 1.60000
+DEAL::Prepare at time 1.60000 and step 8
 DEAL::Intermediate output:
 DEAL::  t =1.60000
 DEAL::  y =0.200048  (exact: 0.201897)
 DEAL::Evaluating explicit function at t=1.80000
 DEAL::Evaluating explicit Jacobian at t=1.80000
 DEAL::Evaluating explicit function at t=1.80000
+DEAL::Distribute at time 1.80000
+DEAL::Prepare at time 1.80000 and step 9
 DEAL::Intermediate output:
 DEAL::  t =1.80000
 DEAL::  y =0.163253  (exact: 0.165299)
 DEAL::Evaluating explicit function at t=2.00000
 DEAL::Evaluating explicit Jacobian at t=2.00000
 DEAL::Evaluating explicit function at t=2.00000
+DEAL::Distribute at time 2.00000
+DEAL::Prepare at time 2.00000 and step 10
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =2.00000
 DEAL::  y =0.133225  (exact: 0.135335)
 DEAL::Evaluating explicit function at t=2.20000
 DEAL::Evaluating explicit Jacobian at t=2.20000
 DEAL::Evaluating explicit function at t=2.20000
+DEAL::Distribute at time 2.20000
+DEAL::Prepare at time 2.20000 and step 11
 DEAL::Intermediate output:
 DEAL::  t =2.20000
 DEAL::  y =0.108719  (exact: 0.110803)
@@ -288,69 +363,94 @@ DEAL::  y =1.00000  (exact: 1.00000)
 DEAL::Evaluating implicit function at t=0.100000
 DEAL::Evaluating implicit Jacobian at t=0.100000
 DEAL::Evaluating implicit function at t=0.100000
+DEAL::Distribute at time 0.100000
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Evaluating implicit Jacobian at t=0.200000
 DEAL::Evaluating implicit function at t=0.200000
+DEAL::Distribute at time 0.200000
+DEAL::Prepare at time 0.200000 and step 1
 DEAL::Intermediate output:
 DEAL::  t =0.200000
 DEAL::  y =0.823864  (exact: 0.818731)
 DEAL::Evaluating implicit function at t=0.400000
 DEAL::Evaluating implicit Jacobian at t=0.400000
 DEAL::Evaluating implicit function at t=0.400000
+DEAL::Distribute at time 0.400000
+DEAL::Prepare at time 0.400000 and step 2
 DEAL::Intermediate output:
 DEAL::  t =0.400000
 DEAL::  y =0.675134  (exact: 0.670320)
 DEAL::Evaluating implicit function at t=0.600000
 DEAL::Evaluating implicit Jacobian at t=0.600000
 DEAL::Evaluating implicit function at t=0.600000
+DEAL::Distribute at time 0.600000
+DEAL::Prepare at time 0.600000 and step 3
 DEAL::Intermediate output:
 DEAL::  t =0.600000
 DEAL::  y =0.551962  (exact: 0.548812)
 DEAL::Evaluating implicit function at t=0.800000
 DEAL::Evaluating implicit Jacobian at t=0.800000
 DEAL::Evaluating implicit function at t=0.800000
+DEAL::Distribute at time 0.800000
+DEAL::Prepare at time 0.800000 and step 4
 DEAL::Intermediate output:
 DEAL::  t =0.800000
 DEAL::  y =0.450798  (exact: 0.449329)
 DEAL::Evaluating implicit function at t=1.00000
 DEAL::Evaluating implicit Jacobian at t=1.00000
 DEAL::Evaluating implicit function at t=1.00000
+DEAL::Distribute at time 1.00000
+DEAL::Prepare at time 1.00000 and step 5
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =1.00000
 DEAL::  y =0.368009  (exact: 0.367879)
 DEAL::Evaluating implicit function at t=1.20000
 DEAL::Evaluating implicit Jacobian at t=1.20000
 DEAL::Evaluating implicit function at t=1.20000
+DEAL::Distribute at time 1.20000
+DEAL::Prepare at time 1.20000 and step 6
 DEAL::Intermediate output:
 DEAL::  t =1.20000
 DEAL::  y =0.300364  (exact: 0.301194)
 DEAL::Evaluating implicit function at t=1.40000
 DEAL::Evaluating implicit Jacobian at t=1.40000
 DEAL::Evaluating implicit function at t=1.40000
+DEAL::Distribute at time 1.40000
+DEAL::Prepare at time 1.40000 and step 7
 DEAL::Intermediate output:
 DEAL::  t =1.40000
 DEAL::  y =0.245132  (exact: 0.246597)
 DEAL::Evaluating implicit function at t=1.60000
 DEAL::Evaluating implicit Jacobian at t=1.60000
 DEAL::Evaluating implicit function at t=1.60000
+DEAL::Distribute at time 1.60000
+DEAL::Prepare at time 1.60000 and step 8
 DEAL::Intermediate output:
 DEAL::  t =1.60000
 DEAL::  y =0.200048  (exact: 0.201897)
 DEAL::Evaluating implicit function at t=1.80000
 DEAL::Evaluating implicit Jacobian at t=1.80000
 DEAL::Evaluating implicit function at t=1.80000
+DEAL::Distribute at time 1.80000
+DEAL::Prepare at time 1.80000 and step 9
 DEAL::Intermediate output:
 DEAL::  t =1.80000
 DEAL::  y =0.163253  (exact: 0.165299)
 DEAL::Evaluating implicit function at t=2.00000
 DEAL::Evaluating implicit Jacobian at t=2.00000
 DEAL::Evaluating implicit function at t=2.00000
+DEAL::Distribute at time 2.00000
+DEAL::Prepare at time 2.00000 and step 10
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =2.00000
 DEAL::  y =0.133225  (exact: 0.135335)
 DEAL::Evaluating implicit function at t=2.20000
 DEAL::Evaluating implicit Jacobian at t=2.20000
 DEAL::Evaluating implicit function at t=2.20000
+DEAL::Distribute at time 2.20000
+DEAL::Prepare at time 2.20000 and step 11
 DEAL::Intermediate output:
 DEAL::  t =2.20000
 DEAL::  y =0.108719  (exact: 0.110803)
@@ -364,11 +464,14 @@ DEAL::Setting up Jacobian at t=0.100000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=0.100000
 DEAL::Evaluating implicit function at t=0.100000
+DEAL::Distribute at time 0.100000
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Setting up Jacobian at t=0.200000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=0.200000
 DEAL::Evaluating implicit function at t=0.200000
+DEAL::Distribute at time 0.200000
+DEAL::Prepare at time 0.200000 and step 1
 DEAL::Intermediate output:
 DEAL::  t =0.200000
 DEAL::  y =0.823864  (exact: 0.818731)
@@ -377,6 +480,8 @@ DEAL::Setting up Jacobian at t=0.400000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=0.400000
 DEAL::Evaluating implicit function at t=0.400000
+DEAL::Distribute at time 0.400000
+DEAL::Prepare at time 0.400000 and step 2
 DEAL::Intermediate output:
 DEAL::  t =0.400000
 DEAL::  y =0.675134  (exact: 0.670320)
@@ -385,6 +490,8 @@ DEAL::Setting up Jacobian at t=0.600000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=0.600000
 DEAL::Evaluating implicit function at t=0.600000
+DEAL::Distribute at time 0.600000
+DEAL::Prepare at time 0.600000 and step 3
 DEAL::Intermediate output:
 DEAL::  t =0.600000
 DEAL::  y =0.551962  (exact: 0.548812)
@@ -393,6 +500,8 @@ DEAL::Setting up Jacobian at t=0.800000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=0.800000
 DEAL::Evaluating implicit function at t=0.800000
+DEAL::Distribute at time 0.800000
+DEAL::Prepare at time 0.800000 and step 4
 DEAL::Intermediate output:
 DEAL::  t =0.800000
 DEAL::  y =0.450798  (exact: 0.449329)
@@ -401,6 +510,9 @@ DEAL::Setting up Jacobian at t=1.00000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=1.00000
 DEAL::Evaluating implicit function at t=1.00000
+DEAL::Distribute at time 1.00000
+DEAL::Prepare at time 1.00000 and step 5
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =1.00000
 DEAL::  y =0.368009  (exact: 0.367879)
@@ -409,6 +521,8 @@ DEAL::Setting up Jacobian at t=1.20000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=1.20000
 DEAL::Evaluating implicit function at t=1.20000
+DEAL::Distribute at time 1.20000
+DEAL::Prepare at time 1.20000 and step 6
 DEAL::Intermediate output:
 DEAL::  t =1.20000
 DEAL::  y =0.300364  (exact: 0.301194)
@@ -417,6 +531,8 @@ DEAL::Setting up Jacobian at t=1.40000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=1.40000
 DEAL::Evaluating implicit function at t=1.40000
+DEAL::Distribute at time 1.40000
+DEAL::Prepare at time 1.40000 and step 7
 DEAL::Intermediate output:
 DEAL::  t =1.40000
 DEAL::  y =0.245132  (exact: 0.246597)
@@ -425,6 +541,8 @@ DEAL::Setting up Jacobian at t=1.60000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=1.60000
 DEAL::Evaluating implicit function at t=1.60000
+DEAL::Distribute at time 1.60000
+DEAL::Prepare at time 1.60000 and step 8
 DEAL::Intermediate output:
 DEAL::  t =1.60000
 DEAL::  y =0.200048  (exact: 0.201897)
@@ -433,6 +551,8 @@ DEAL::Setting up Jacobian at t=1.80000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=1.80000
 DEAL::Evaluating implicit function at t=1.80000
+DEAL::Distribute at time 1.80000
+DEAL::Prepare at time 1.80000 and step 9
 DEAL::Intermediate output:
 DEAL::  t =1.80000
 DEAL::  y =0.163253  (exact: 0.165299)
@@ -441,6 +561,9 @@ DEAL::Setting up Jacobian at t=2.00000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=2.00000
 DEAL::Evaluating implicit function at t=2.00000
+DEAL::Distribute at time 2.00000
+DEAL::Prepare at time 2.00000 and step 10
+DEAL::Interpolate
 DEAL::Intermediate output:
 DEAL::  t =2.00000
 DEAL::  y =0.133225  (exact: 0.135335)
@@ -449,6 +572,8 @@ DEAL::Setting up Jacobian at t=2.20000
 DEAL::Solving with Jacobian
 DEAL::Evaluating implicit function at t=2.20000
 DEAL::Evaluating implicit function at t=2.20000
+DEAL::Distribute at time 2.20000
+DEAL::Prepare at time 2.20000 and step 11
 DEAL::Intermediate output:
 DEAL::  t =2.20000
 DEAL::  y =0.108719  (exact: 0.110803)