WRFDA 4dvar segmentation fault in tutorial

[sdhamilton]

Hello, I have been working through the WRFDA tutorial (https://www2.mmm.ucar.edu/wrf/users/wrfda/Tutorials/2019_July/class/4dvar.html). All the examples I tried went fine until trying to run the 4dvar case, at which point I just get a mysterious segmentation fault:

"Program received signal SIGSEGV: Segmentation fault - invalid memory reference."

I attached the relevant error and log files.

Thanks!

Sofia

 

[Liliputian_123]

Hello,

Were you able to solve this? I have a similar issue on the example tutorial in the documentation. I encountered CFL errors and tried to:
a) reduce the time step
b) use damping
c) use smooth_cg_topog
d) use epssm

but non of the above solved the issue. Please let me know if you were able to figure this out!

 

[sdhamilton]

Hello, no I still have not gotten it to work, have you had any luck?

 

[Liliputian_123]

Did anyone solve this issue? Im having the same issue with 4dvar..3dvar example works fine!

-Lyndz

 

[vongrads]

I have the same problem

~Vongrads~

 

[ccl]

It looks like the problem occurs when using the surface layer parametrization. try different setting in namelist of sf_sfclay_physics=.., maybe 4.

 

[irratio]

I also have the same problem. Tried everything mentioned here, including changing sf_sfclay_physics and even other physics options.
Did not work, still getting Segmentation fault. Any other suggestions are appreciated!
I am working on WRF 4.4 with the option in &time_control that enables to use older-version data (force_use_old_data=.true.) as the most recent available tutorial is 3.9 from WRFDA - Test Data Sets

(3dvar example also works fine for me)

 

[islandowner]

same error, anyone solve it?