Error in real.exe: invalid parent id for domain 2 with 4-domain nesting

[UV Rohith]

Hi,

I have been running WRF simulations for the past few months and have successfully completed several runs using three nested domains (9 km, 3 km, and 1 km). I am now attempting to run a four-domain configuration for the first time, but I am encountering an error when running real.exe.

The preprocessing steps geogrid, ungrib, and metgrid all completed successfully, and the met_em files were generated without issues. However, when I run real.exe, the following error appears in both rsl.out and rsl.err:

-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 5817
invalid parent id for domain 2
------------------------------------------

To troubleshoot, I have:

• Carefully reviewed both namelist.wps and namelist.input for formatting errors (e.g., missing commas).
• Verified that the domain configuration parameters are consistent across the namelists.
• Plotted the domains using the geo_em files to visually check the nesting structure. The domains appear correctly nested with no overlaps or obvious issues.

Since this is my first attempt with four domains, I suspect the issue may be related to the nesting configuration, but I have not been able to identify the exact cause.

I am attaching my namelist.wps and namelist.input for reference.

Any suggestions on what might be causing this error would be greatly appreciated.

Thank you.

 

[kwerner]

Hi,
See my final response on this thread. It looks like you have the exact same issue.