Opened 5 years ago

Closed 5 years ago

#1507 closed help (answered)

vn 8.6 no CRUN/NRUN option available

Reported by: markr Owned by: ros
Component: UM Model Keywords: NRUN CRUN
Cc: Platform: MONSooN
UM Version: 8.6

Description

Hello,
I do not understand why the NRUN and CRUN buttons do not work in vn8.6
(my case is xklsf) which I want to run for 16 months simulation.

Compile and Run > Compile and Run options for Atmosphere and Reconfiguration

Change History (8)

comment:1 Changed 5 years ago by ros

  • Owner changed from um_support to ros
  • Status changed from new to accepted

Hi Mark,

The NRUN/CRUN buttons are only available if you have compilation switched off and are not running the reconfiguration. If you are doing either of these things then the run must be an initial run (i.e. NRUN) and so these buttons are inactive.

Regards,
Ros.

comment:2 Changed 5 years ago by markr

Hi Ros,
I suppose I should read the manual about this now that I am going to be trying a CRUN from a
pre-run 16month job. However, in this case it was an attempt to run the control case for 16 months with
3 hour jobs. The re-submission failed.

I will be using my dev source for later runs restarting from the end result of the 16 month run.
i.e. I will be re-compiling for the continuation (or is treated differently?)

I think I need to learn about:

(1) running long jobs on Monsoon (a sequence of 3hr jobs)
(2) initialising a seperate run from the 16 month run

the second job will be very short 10 day dev job. The only help around here is based on vn7.3
which looks different for this CRUN work.

thanks for any further advice,
Mark

comment:3 Changed 5 years ago by ros

Hi Mark,

If you me know the job id that you attempted to run as a CRUN - I'll take a look and let you know what you need to change. I've also made a note to update the FAQ on automatic resubmission.

Regards,
Ros.

comment:4 Changed 5 years ago by markr

Hi Ros,
it is xklsf against my username markr I just saved and quit for your access.
(i.e. no changes going on now.

I read doc p000_86.pdf and it comments that auto-resubmission is only within Met Office systems.
Still finding new-stuff to learn
Mark

comment:5 Changed 5 years ago by ros

Hi Mark,

Having looked at the job. Assuming that you've already run the NRUN successfully all you need to do is in window compilation & run options → compile & run options for atmos & recon:

  • switch off compilation of the model & reconfiguration
  • switch off "run the reconfiguration"

The "type of model run" will then become active. Check that CRUN is selected. Then save, process and resubmit. It should then run out to 1year & 4months in 1 month chunks as specified in the "Resubmission pattern" window.

Cheers,
Ros.

comment:6 Changed 5 years ago by markr

Hi Ros,
it looks as though the NRUN job did do 30 days in 1.5 hrs so it completed by 19:30
output in /projects/ukca/mricha/xklsf
I then followed your advice this morning and got a failure within 2 min of starting.
Very cryptic output in /home/mricha/output/xklsf000.xklsf.d15076.t095556.leave

There is also an additional run I did in-between where I edited the SUBMIT and changed the job TYPE to CRUN in that script. That failed in the same manner.

I think I will clean out the dirs and start from scratch. This 16mo run needs to be right for downstream validation.

Having looked at the docs and some other posts on CRUN I think for 8.6 the correct procedure is:

(a) run an NRUN for a short time (1 month)
(b) modify the job to CRUN without compilation of reconfig

Then for my development work I think I need to do NRUNS but starting from the output
from this CRUN job as I need to compile as I develop.

I have a meeting planned with Graham on Fri, perhaps he can help clarify things for me.
Thanks for the help so far,
Mark

comment:7 Changed 5 years ago by ros

Hi Mark,

Having looked at the docs and some other posts on CRUN I think for 8.6 the 
correct procedure is:

   (a) run an NRUN for a short time (1 month)
   (b) modify the job to CRUN without compilation of reconfig

Yes, that is exactly right and what I had said in my comment above.

Once you have run your 16month job, for your development you do indeed recompile with your code changes and then do NRUNs starting from the output of the last CRUN.

Regards,
Ros.

comment:8 Changed 5 years ago by annette

  • Resolution set to answered
  • Status changed from accepted to closed
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