From faff379fed7ec642ba94eb6330bccc5ebcae9880 Mon Sep 17 00:00:00 2001
From: Kilian Weishaupt <kilian.weishaupt@iws.uni-stuttgart.de>
Date: Mon, 9 Apr 2018 06:38:22 +0200
Subject: [PATCH] [test][tracer][implicit] Use NewtonSolver

---
 .../tracer/1ptracer/test_cctracer.cc          |  3 +-
 .../tracer/constvel/test_tracer.cc            |  3 +-
 .../multicomp/test_tracer_maxwellstefan.cc    | 34 ++++---------------
 3 files changed, 9 insertions(+), 31 deletions(-)

diff --git a/test/porousmediumflow/tracer/1ptracer/test_cctracer.cc b/test/porousmediumflow/tracer/1ptracer/test_cctracer.cc
index 9187fa0257..010fa97380 100644
--- a/test/porousmediumflow/tracer/1ptracer/test_cctracer.cc
+++ b/test/porousmediumflow/tracer/1ptracer/test_cctracer.cc
@@ -39,7 +39,6 @@
 #include <dumux/common/dumuxmessage.hh>
 
 #include <dumux/linear/seqsolverbackend.hh>
-#include <dumux/nonlinear/newtonmethod.hh>
 
 #include <dumux/assembly/fvassembler.hh>
 #include <dumux/assembly/diffmethod.hh>
@@ -286,7 +285,7 @@ int main(int argc, char** argv) try
         // report statistics of this time step
         timeLoop->reportTimeStep();
 
-        // set new dt as suggested by newton controller
+        // set new dt
         timeLoop->setTimeStepSize(dt);
 
     } while (!timeLoop->finished());
diff --git a/test/porousmediumflow/tracer/constvel/test_tracer.cc b/test/porousmediumflow/tracer/constvel/test_tracer.cc
index f75e2b5a3a..b710725758 100644
--- a/test/porousmediumflow/tracer/constvel/test_tracer.cc
+++ b/test/porousmediumflow/tracer/constvel/test_tracer.cc
@@ -37,7 +37,6 @@
 #include <dumux/common/defaultusagemessage.hh>
 
 #include <dumux/linear/seqsolverbackend.hh>
-#include <dumux/nonlinear/newtonmethod.hh>
 #include <dumux/assembly/fvassembler.hh>
 
 #include <dumux/io/vtkoutputmodule.hh>
@@ -183,7 +182,7 @@ int main(int argc, char** argv) try
         if (timeLoop->isCheckPoint() || timeLoop->finished())
             vtkWriter.write(timeLoop->time());
 
-        // set new dt as suggested by newton controller
+        // set new dt
         timeLoop->setTimeStepSize(dt);
     }
 
diff --git a/test/porousmediumflow/tracer/multicomp/test_tracer_maxwellstefan.cc b/test/porousmediumflow/tracer/multicomp/test_tracer_maxwellstefan.cc
index 07d3eb609d..a03b1a28a8 100644
--- a/test/porousmediumflow/tracer/multicomp/test_tracer_maxwellstefan.cc
+++ b/test/porousmediumflow/tracer/multicomp/test_tracer_maxwellstefan.cc
@@ -41,8 +41,7 @@
 #include <dumux/common/defaultusagemessage.hh>
 
 #include <dumux/linear/amgbackend.hh>
-#include <dumux/nonlinear/newtonmethod.hh>
-#include <dumux/nonlinear/newtoncontroller.hh>
+#include <dumux/nonlinear/newtonsolver.hh>
 
 #include <dumux/assembly/fvassembler.hh>
 #include <dumux/assembly/diffmethod.hh>
@@ -135,7 +134,6 @@ int main(int argc, char** argv) try
     // get some time loop parameters
     using Scalar = typename GET_PROP_TYPE(TypeTag, Scalar);
     const auto tEnd = getParam<Scalar>("TimeLoop.TEnd");
-    const auto maxDivisions = getParam<int>("TimeLoop.MaxTimeStepDivisions");
     const auto maxDt = getParam<Scalar>("TimeLoop.MaxTimeStepSize");
     auto dt = getParam<Scalar>("TimeLoop.DtInitial");
 
@@ -163,10 +161,8 @@ int main(int argc, char** argv) try
     auto linearSolver = std::make_shared<LinearSolver>(leafGridView, fvGridGeometry->dofMapper());
 
     // the non-linear solver
-    using NewtonController = Dumux::NewtonController<Scalar>;
-    using NewtonMethod = Dumux::NewtonMethod<NewtonController, Assembler, LinearSolver>;
-    auto newtonController = std::make_shared<NewtonController>(timeLoop);
-    NewtonMethod nonLinearSolver(newtonController, assembler, linearSolver);
+    using NewtonSolver = Dumux::NewtonSolver<Assembler, LinearSolver>;
+    NewtonSolver nonLinearSolver(assembler, linearSolver);
 
     // time loop
     timeLoop->start(); do
@@ -174,24 +170,8 @@ int main(int argc, char** argv) try
         // set previous solution for storage evaluations
         assembler->setPreviousSolution(xOld);
 
-        // try solving the non-linear system
-        for (int i = 0; i < maxDivisions; ++i)
-        {
-            // linearize & solve
-            auto converged = nonLinearSolver.solve(x);
-
-            if (converged)
-                break;
-
-            if (!converged && i == maxDivisions-1)
-                DUNE_THROW(Dune::MathError,
-                           "Newton solver didn't converge after "
-                           << maxDivisions
-                           << " time-step divisions. dt="
-                           << timeLoop->timeStepSize()
-                           << ".\nThe solutions of the current and the previous time steps "
-                           << "have been saved to restart files.");
-        }
+        // solve the non-linear system with time step control
+        nonLinearSolver.solve(x, *timeLoop);
 
         // make the new solution the old solution
         xOld = x;
@@ -207,8 +187,8 @@ int main(int argc, char** argv) try
         // report statistics of this time step
         timeLoop->reportTimeStep();
 
-        // set new dt as suggested by newton controller
-        timeLoop->setTimeStepSize(newtonController->suggestTimeStepSize(timeLoop->timeStepSize()));
+        // set new dt as suggested by the newton solver
+        timeLoop->setTimeStepSize(nonLinearSolver.suggestTimeStepSize(timeLoop->timeStepSize()));
 
     } while (!timeLoop->finished());
 
-- 
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