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Error when trying to run wrf-les


New member
Good morning

We have successfully run the WRF model with a nested simulation with four domains in HPC with ndown too, but now we want to run d04 with LES and we have some problems. The model runs, but after a few minutes it stops and generates the following error in wrf.log:

Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
mpirun noticed that process rank 4451 with PID 1311913 on node cn0567 exited on signal 11 (Segmentation fault).

We don't know what is happening?
Please find attached the namelist* and rsl.error.000.

Thanks for your help!


  • namelist_wrf_d04.input
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  • wrf_les.log
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  • rsl.error.0000
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I am suspicious that this case failed due to errors in the model physics/dynamics. Please save wrfout files at a few times right before the model crash and look at these files. I guess you will find NaN values in these files.
This is a high resolution case with grid interval of 200m. Under this resolution, the assumption for PBL scheme is invalid, while the resolution is too coarse for LES simulation. This is a typical "greyzone " resolution and the model cannot well handle this case.
there are two options here:
(1) turn off PBL scheme and see whether you can run this case. If it still failed, then
(2) turn on the 3DTKE scheme and try again.
Please let me know whether the above two option work or not.
@Ming Chen Thanks for your quickly answer
We tried with your recommendations and got this error in rsl.error.0000

-------------- FATAL CALLED ---------------
Please choose diffusion coefficient scheme

Please find attached the namelist* and rsl.error.000.


  • rsl.error.0000
    4.4 KB · Views: 4
  • namelist_wrf_d04.input
    7.8 KB · Views: 6