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Adding Stages

In this section, we will take a look at how we can add more tasks to our script from the :ref:`Adding Tasks <uguide_add_tasks>` section.

Note

The reader is assumed to be familiar with the :ref:`PST Model <app_model>` and to have read through the :ref:`introduction` of Ensemble Toolkit.

Note

This chapter assumes that you have successfully installed Ensemble Toolkit, if not see :ref:`Installation`.

You can download the complete code discussed in this section :download:`here <../../../examples/user_guide/add_stages.py>` or find it in your virtualenv under share/radical.entk/user_guide/scripts.

Below, you can see the code snippet that shows how you can add more Stages to a Pipeline. You simple create more Stage objects, populate them with Tasks and add them to the Pipeline using the add_stage() method.

.. literalinclude:: ../../../examples/user_guide/add_stages.py
    :language: python
    :lines: 20-58



python add_stages.py

Let's take a look at the complete code in the example. You can generate a more verbose output by setting the environment variable RADICAL_ENTK_VERBOSE=DEBUG.

A look at the complete code in this section:

.. literalinclude:: ../../../examples/user_guide/add_stages.py