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wrf.exe stops without fatal error

wangyan891216

New member
Hi there
I've tried to run wrf using the ERA5 dataset, the resolution is 0.25°
when runing the wrf.exe, it stoped and I've check the rsl.error.* but cannot find the reason why it stoped.

For reference, the namelist.input and the rsl.error files are attached.

Looking forward to any suggestion, Thanks!
 

Attachments

  • namelist.input
    4.7 KB · Views: 2
  • namelist.wps
    684 bytes · Views: 1
  • rsl.error.0000.txt
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  • rsl.error.0001.txt
    11.7 KB · Views: 1
  • rsl.error.0002.txt
    8.9 KB · Views: 1
  • rsl.error.0003.txt
    10.3 KB · Views: 1
  • rsl.error.0004.txt
    6 KB · Views: 1
  • rsl.error.0005.txt
    10.4 KB · Views: 1
  • rsl.error.0006.txt
    4.8 KB · Views: 1
  • rsl.error.0007.txt
    10.3 KB · Views: 1
Hi,
In your rsl* files, you have many CFL errors; for e.g.,

Code:
rsl_files/rsl.error.0007.txt:d01 2018-03-01_00:06:00          996  points exceeded v_cfl = 2 in domain d01 at time 2018-03-01_00:06:00 hours
rsl_files/rsl.error.0007.txt:d01 2018-03-01_00:06:00 Max   W:    249    151     17 W:   13.59  w-cfl:    2.98  dETA:    0.05
rsl_files/rsl.error.0007.txt:d01 2018-03-01_00:06:00          999  points exceeded v_cfl = 2 in domain d01 at time 2018-03-01_00:06:00 hours
rsl_files/rsl.error.0007.txt:d01 2018-03-01_00:06:00 Max   W:    249    151     17 W:   13.15  w-cfl:    2.99  dETA:    0.05
rsl_files/rsl.error.0007.txt:d01 2018-03-01_00:06:40         1016  points exceeded v_cfl = 2 in domain d01 at time 2018-03-01_00:06:40 hours

This means the model has become unstable. Take a look at this FAQ that discusses cfl errors and potential ways to overcome them.

I also have a few other suggestions for your domain and simulation.
1) You probably should increase your number of vertical levels. In newer versions of WRF, the default for the e_vert namelist parameter has been increased to 45, and I would recommend setting yours to that, as well.
2) I see you are only using 10 processors. Although this may be enough, if possible, you likely will want to use more than that to help you run the simulation faster. This FAQ discusses choosing an appropriate number of processors.
3) Although it may not be a problem, since you are using 10 processors, the processor decomposition becomes 2x5 (the closest prime numbers). If you're going to increase the number of processors, pay attention to the distribution to ensure it's a bit more squared (though it doesn't have to be perfect).
 
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