CESM/CTSM single-point simulation on Derecho

[ceyang]

Hi,

I wonder if anyone has tried to run single-point/site-level simulations on NCAR's new Derecho system. According to NCAR's Helpdesk response, if I understand correctly, an entire node (128 cores) will be charged even if I only need one core to run a single-point simulation.

While Cheyenne had the "share" queue supported, I wonder if anyone has come up with some solutions that site-level CESM/CTSM simulations can run on Derecho without letting 127 cores idle. For example, running multiple sites' simulations within one batch job.

Any working/successful solution and/or instruction on how to modify the case.submit script is much appreciated.


Thank you,
Ken

 

[jedwards]

You should be able to use a shared node on casper. And you can run 128 simultanious simulations on derecho, I think that
user services can help you with how to do that.

 

[ceyang]

@jedwards Thank you for your suggestion. I will contact the Helpdesk for further help.

-- Ken