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don't display bad practice #746

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12 changes: 10 additions & 2 deletions src/user-guide/task-implementation/job-submission.rst
Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,15 @@ characters using
Directives Section Quirks (PBS, SGE, ...)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. warning::

Use :cylc:conf:`[runtime][<namespace>]execution time limit` rather
than directives.

This makes Cylc aware of execution time limits so that execution
time out can be identified even if the :term:`job runner` cannot be
contacted.

To specify an option with no argument, such as ``-V`` in PBS or
``-cwd`` in SGE you must give a null string as the directive value in
the :cylc:conf:`flow.cylc` file.
Expand All @@ -70,7 +79,7 @@ line:

.. code-block:: none

-l=select=28:ncpus=36:mpiprocs=18:ompthreads=2:walltime=12:00:00
-l=select=28:ncpus=36:mpiprocs=18:ompthreads=2

(Left hand side is ``-l``. A second ``-l=...`` line will override the first.)

Expand All @@ -82,7 +91,6 @@ Or separate the items:
-l ncpus=36
-l mpiprocs=18
-l ompthreads=2
-l walltime=12:00:00

.. note::

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