Cis tools on ARCHER2

Rose/Cylc and FCM
,
1

Hello,

My suite ‘u-cm987’ fails on the ‘flight_track_sim’ task because the ‘iris’ library is not available.

I sought help from archer2 admin and they confirmed my miniconda3 environment is set up correctly.

I also ran the command:
conda install -c conda-forge cis
to make the python ‘iris’ library available.

The first line of the associated python script is
#!/work/n02/n02/lre/miniconda3/bin/python

This would be far easier if iris were commonly available. But, since it’s not could you please explain how I could make sure the task sees the correct miniconda environment?

Thanks very much,

Leighton

2

Hi Leighton,

Try setting the PYTHONPATH for the task to point to your miniconda3. At the moment you’re still loading the cray-python 3 environment for the task.

A central IRIS install is on our list of todos.

Regards,
Ros.

3

Hi Ros,

I’m not sure if I’ve implemented your suggestion correctly.

I changed the PYTHONPATH for this task in my archer2.rc file to be
PYTHONPATH=/work/n02/n02/lre/miniconda3/bin/python

Is that what you meant?

I reran with that chage and iris is still not visible.

Thanks,

Leighton

4

Hi,
Try using #!/work/y07/shared/umshared/iris/python at the start of your script.

Simon.

5

Hi Simon,

Thanks for the suggestion. Is this a test version of a shared iris library?

The flight_track_sim task now crashes with multiple errors related to missing python functionality. It doesn’t seem to be able to import, try or use loops.

Thanks,

Leighton

6

Hi Leighton,

It’s iris 2.3.0

Unfortunately there is an issue with my previous answer, try
#!/usr/bin/env python_iris
instead.

And, if you have the pre_scipt option set in the FLIGHT_TRACK_RESOURCE config in site/archer2.rc, please remove it.