Error running real.exe

[sa24m]

I have been successfully running WRF for a while now, but I am suddenly getting this error just today when I attempted to reproduce a tutorial I have successfully done before. geogrid, Metgrid and Ungrib all runs successfully but when I run real.exe I get the error attached.
I have several versions of WRF and WPS and I have tried all the versions I have yet I end up with the same particular error. I have attached the sample rsl files and the two namelists I have used, and out from WRFV4.5.2 below. Can anyone help me point out what could be wrong here.

starting wrf task            0  of            1
[h22-login-24:695383] *** An error occurred in MPI_Comm_create_keyval
[h22-login-24:695383] *** reported by process [1279787009,140638704107520]
[h22-login-24:695383] *** on communicator MPI_COMM_WORLD
[h22-login-24:695383] *** MPI_ERR_ARG: invalid argument of some other kind
[h22-login-24:695383] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,
[h22-login-24:695383] ***    and potentially your MPI job)

 

[Ming Chen]

There is no error message in your rsl files.
Based on what you posted, this seems more like a library issue. I would suggest that you reinstall libraries and WRF. Below is the website that provides detailed instruction:

Compiling WRF

 

[sa24m]

Thank you, Ming.

I reached out to my IT department, and the issue has been resolved. It turns out there were interdependencies among the modules, where loading one module would automatically load another. As a result, issuing a command to reload a dependent library inadvertently offloaded the initially loaded module.

 

[Ming Chen]

Thank you for the update. I am glad it works !