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You will need to ssh into 

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derecho.hpc.ucar.edu



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Tip
titleTips from CISL:

Tips for moving from Cheyenne to Derecho on https://ncar-hpc-docs.readthedocs.io/


Note
titleComprehensive slides of information from NCAR/CISL about the Derecho HPC:

https://docs.google.com/presentation/d/1BAYI9NdyAnZzU3KLat0CK2sQj34XE_K5Wan9zL8rsQ0/edit?usp=sharing

Old instructions for running on Cheyenne (the retired NCAR HPC) are here: Run CAM-Chem on Cheyenne




CESM2.2 on Derecho

Your $HOME and $WORK directories (on glade) are the same path on cheyenne and derecho. Therefore, it is recommended to create a new directory (in $HOME or $WORK) for cases you will run on derecho, to not confuse them with cases built on cheyenne (which will not run on derecho).  Derecho and cheyenne have separate $SCRATCH directories.

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Get the optimized history-writing code for CLM with these commands: (Not sure this is still neeeded???)

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> cd components/clm
> git fetch origin
> git checkout release-cesm2.2.01/hist_opt

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After the run completes successfully, output files are moved to the short term archive: /glade/derecho/scratch/<username>/archive/$CASENAME/atm/hist (similar directories exist for other model components: lnd, etc.).

Restart and initial conditions files are written to: /glade/derecho/scratch/<username>/archive/$CASENAME/rest

Note: long term archiving is currently not working

Tip
titleTip for New Users:

For more options regarding the submission and running options type: case.submit --help



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Tip
titleTip for New Users:

Default output is monthly, so if you run a test 5-day simulation with monthly output, you will not see any files in the atm/hist location. However, restart files will have been created.



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