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(RESOLVED) WRF just hangs when I try to run

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New member
I want to thank everyone that answers
My problem is that when I try to run WRF it just stops. the last line in the wrf log is:
ThompMP: computing qr_acr_qg.
It seems like the error is somehow connected to mpi (multi processor) so I tried simply running ./wrf.exe - it did not help.

What I am doing is trying to work using the most standard configuration possible:
Compile and run is done using GNU tools according to the instructions in The only possible difference is that I am getting my GFS data from UCAR ds084.1 and not from operational data.

The only problem I see when preparing the data is after running metgrid
Note: The following floating-point exceptions are signalling: IEEE_OVERFLOW_FLAG IEEE_UNDERFLOW_FLAG IEEE_DENORMAL

I attach all the files I think might be relevant:
WRF and WPS namelists
logs for data preparation and real

Thanks again


  • wrf.log
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  • namelist.input
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  • real.log
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  • namelist.wps
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  • ungrib.log
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  • metgrid.log
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The problem is very likely that you aren't using enough processors for your domain size. You're only using a single processor, and your domains are all larger than 200 x 200. Take a look at this FAQ that discusses choosing a reasonable number of processors.