WRF model efficiency is unusually low

MSdueon12

Member
Hello,
I am currently running the WRF model on the Derecho HPC system under {{/glade/work/zhouxu/wrfv4.3}}. However, I found that the model efficiency is unusually low.

I submitted the job using the {{qsub.wrf}} script with 10 CPU cores, which should be sufficient for this simulation. However, after approximately 6 hours of wall-clock runtime, the model only simulated about 13 minutes of model time. This performance is far lower than expected.

I have previously run the same model configuration and settings, and under normal conditions I would expect approximately 5–6 hours of simulated model time within 6 hours of runtime using 10 cores. I tested using the default version, which suggests that no custom modifications were made to the original configuration.

Therefore, I suspect there may be an improper setting or configuration issue causing the low simulation efficiency. I would greatly appreciate it if someone could help me identify and solve the problem.

The {{qsub}} submission script, and namelist.input have been attached for reference. The relative files are under the directory of /glade/work/zhouxu/wrfv4.3/run
 

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