Failed run WRF-Chem with LCZ and urban canopy scheme.

[haofan.wang]

Hi all,

I tried to run WRF-Chem with LCZ and urban canopy scheme, but it failed.

The attachments are namelist.input, namelist.wps, and rsl.error.* files.

Please note that:

1. I tried to run WRF-Chem with default land use and it was successful.
2. I tried to run WRF-Chem with LCZ land use only for meteorology (chem_opt=0) and it was successful.
3. I tried to run WRF-Chem with LCZ land use for meteorology and pollutants (chem_opt=1) and it failed.

Additionally, i run all of the cases via 72 cores and the LCZ land use datasets are from https://www2.mmm.ucar.edu/wrf/src/wps_files/cglc_modis_lcz_global.tar.gz.

Could you help me to solve this problem?

Thank you very much.

Best regards,
Haofan

 

[HJORQUER]

Hi all,

I tried to run WRF-Chem with LCZ and urban canopy scheme, but it failed.

The attachments are namelist.input, namelist.wps, and rsl.error.* files.

Please note that:

1. I tried to run WRF-Chem with default land use and it was successful.
2. I tried to run WRF-Chem with LCZ land use only for meteorology (chem_opt=0) and it was successful.
3. I tried to run WRF-Chem with LCZ land use for meteorology and pollutants (chem_opt=1) and it failed.

Additionally, i run all of the cases via 72 cores and the LCZ land use datasets are from https://www2.mmm.ucar.edu/wrf/src/wps_files/cglc_modis_lcz_global.tar.gz.

Could you help me to solve this problem?

Thank you very much.

Best regards,
Haofan

Hello Haofan

I think you are using too many processors, 72 is too high for your domains' sizes

Check this old post first:

Choosing an Appropriate Number of Processors

To choose an appropriate number of processors, you will need to consider the decomposition of the processes in relation to the size of the domains. For processing, your domain will be divided up into tiles, and the number of tiles depends on the total number of processors you use - 1 tile per...

forum.mmm.ucar.edu

Then, try again and see if that is your problem

All the best

Héctor