Full code: `pySDC/tutorial/step_6/A_classic_vs_multigrid_controller.py <https://github.com/Parallel-in-Time/pySDC/blob/master/pySDC/tutorial/step_6/A_classic_vs_multigrid_controller.py>`_

.. literalinclude:: ../../../pySDC/tutorial/step_6/A_classic_vs_multigrid_controller.py

Results:

.. literalinclude:: ../../../step_6_A_sl_out.txt
.. literalinclude:: ../../../step_6_A_ml_out.txt