[Wrf-users] gcc and gfortran builds?

[Davide Cittaro]

Hi Jan

On Feb 29, 2008, at 2:48 PM, Jan Ploski wrote:
>
> This page may be helpful:
>
> https://bi.offis.de/wisent/tiki-index.php?page=WRF-gFortran
>

Great! Thanks so much!

> However, note that I've had some significant differences in the output
> between gfortran and PGI, so be careful to check the results after  
> you've
> built the code. I think g75 is officially supported (may be better),  
> but
> don't know about OpenMP in it. Based on my experience, the OpenMP  
> version
> of WRF seems to scale up poorly compared to MPI. For example:
>
> https://srvgrid01.offis.uni-oldenburg.de/wrf-benchmark/case.pl?case=conus12km_2001


Very interesting benchmark, I will keep it in mind.
Since MPI seems to perform better, are you aware of different MPI  
implementations performance with WRF? Supposing I can use MPICH, LAM/ 
MPI or OpenMPI (I'm not sure if I can do this), is there a recommended  
one?

Thanks again

d

--
Davide Cittaro
daweonline at gmail.com
http://www.daweonline.net

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