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Run MPAS without .graph.info.part. files

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xtian15

New member
Hi,
I've been trying to generate initial conditions with a variable resolution grid file without the ".graph.info.part." files. The files I can have are "x4.40962.grid.nc" and "x4.40962.graph.info". I tried to generate the static.nc with commands of "./init_atmosphere" or "mpirun -np 1 ./init_atmosphere". The problem is that in the "static.nc", the variable meshDensity are 0 everywhere. Therefore any simulations from there on would quickly generate NaNs.
So my question is in this case, what is the correct way of running MPAS-Atmosphere in order to have valid results.
Thanks,
Tian
 
Without a graph.info.part.NNN file, you will only be able to run the init_atmosphere_model or atmosphere_model programs with a single MPI task. Both of the options that you mentioned ("./init_atmosphere_model" and "mpirun -np 1 ./init_atmosphere_model") should work -- I run the init_atmosphere_model program this way quite often.

Can you verify that the meshDensity field is non-zero in your x4.40962.grid.nc file?
 
Hi, Mike,
Thanks for your response!
Actually, I just found that the variable "meshDensity" does not exist in the x4.40962.grid.nc file I have. I've been searching around for ways to maybe possibly calculate it myself but had no luck. That's why I posted another thread asking to generate a new set of such mesh if possible.
Thanks,
Tian
 
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