[Wrf-users] WRFV3.1.1 issue

Irene Gallai irene.gallai at arpa.fvg.it
Fri Mar 19 02:10:41 MDT 2010

Hi Elliot,

I think you could have setted the namelist entries nproc_x and nproc_y 
in the &domains
section with the wrong values; correct values should give you as their 
product (nproc_x * nproc_y ) the number of processors used.
In alternative you could use the defaukt values  setting them both to -1.
So if you want run tour code with 8 processors you should set nproc_x or 
nproc_y  respectively to 1 and 8 or 2 and 4, just to make an example.

If the entries in your namelist are not wrong maybe you make some 
mistake when launching the executable? How do you specify the number
of processors?

I hope this could aid you


Elliot wrote:

> Good afternoon,
> I am having problems running WRFV3.1.1 on more than one processor.  I 
> am running WRF on a university computing cluster, and have run WRFV3.0 
> successfully on this same cluster using any number of processors 
> (usually, this number has been 8).  The problem I'm having with 
> WRFV3.1.1 is it isn't recognizing that I want it to run on 8 
> processors, and will give me an error when running any of the /run/ 
> directory executables such as real.exe, wrf.exe or ndown.exe, as 
> follows: 
> -------------- FATAL CALLED ---------------
>  FATAL CALLED FROM FILE:  module_dm.b  LINE:     125
>   WRF_DM_INITIALIZE (RSL_LITE): nproc_x * nproc_y in namelist ne
> 1
>  -------------------------------------------
> [unset]: aborting job:
> application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
> This looks like a compiling issue possibly, but I'm not sure where to 
> look.  Does anyone have any suggestions on what I should do or look at?
> I greatly appreciate any feedback.
> Thanks,
> Elliot Tardif.
>Wrf-users mailing list
>Wrf-users at ucar.edu

  Irene Gallai
  Agenzia Regionale per la Protezione dell'Ambiente (ARPA FVG )
   Via Cairoli 14
   I-33057 Palmanova (UD) ITALY
   tel centr.: +39 0432 922611
   e-mail : irene.gallai at arpa.fvg.it

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