Fixed second order SDC tests

Author: brownbaerchen

pySDC/core/level.py

@@ -67,14 +67,14 @@ def __init__(self, problem_class, problem_params, sweeper_class, sweeper_params,
             level_index (int): custom name for this level
         """
 
-        # instantiate sweeper, problem and hooks
-        self.__sweep = sweeper_class(sweeper_params, self)
-        self.__prob = problem_class(**problem_params)
-
         # set level parameters and status
         self.params = _Pars(level_params)
         self.status = _Status()
 
+        # instantiate sweeper, problem and hooks
+        self.__sweep = sweeper_class(sweeper_params, self)
+        self.__prob = problem_class(**problem_params)
+
         # set name
         self.level_index = level_index
 

pySDC/implementations/sweeper_classes/Runge_Kutta.py

@@ -157,7 +157,9 @@ def __init__(self, params, level):
 
         self.params = _Pars(params)
 
-        self.__level = level
+        # set level using the setter in order to adapt residual tolerance if needed
+        self.__level = None
+        self.level = level
 
         self.parallelizable = False
         self.QI = self.coll.Qmat

pySDC/projects/Second_orderSDC/tests/test_convergence.py

@@ -182,5 +182,5 @@ def test_RKN_VV(sweeper_name, cwd=''):
 
 
 if __name__ == '__main__':
-    test_RKN_VV('RKN')
+    pass
     # BorisSDC_global_convergence()