Very long calculation time for WRF

[fis_clima]

I'm running WRF on a cluster with 12 nodes, each with 80 threads.
The rsl.error.0000 file shows very large calculation values.
I've attached the file to run WRF and its namelist.

What could be causing the process to take so long?

I already used
#SBATCH --nodes=4
#SBATCH --nodelist=node007,node008,node009,node010
#SBATCH --ntasks-per-node=80

 

[Ming Chen]

First, Your namelist.input indicates that the time step is only 10s for the 9km mesh. I would suggest that you increase the time step to 45, which will greatly reduce the computation cost.

Second, your D01 only has a grid number of 210 x 220. With the total number of 320 processors, communication between grids costs lots of time.

Third, because your case is 3-domain nested case, D01 can only move on after D02 is done, and d02 can only move on after D03 is done.Even if D01 has a much smaller number of grids compared to D03, it takes time to wait for its child domains to finish the integration.

Some other factors may also affect the integration speed, for example, frequent I/O takes some time.

Your namelist options look fine to me.