Hi Beatrice,
 
         In present parallel verion of RegCM, no. of gridboxes in x-direction should be divisible by no. of cpu's to be used.
In your case no. of grid boxes (jx=51) is not divisible by no. of cpu (nproc). If you want to run on 4 cpu's change jx to 52 or 48.

Regards
Imran



On Wed, Mar 19, 2008 at 2:02 PM, Béatrice Morel <beatrice.morel@univ-reunion.fr> wrote:
Dear All,
 
I am still trying to cope with the parallel version of RegCM on an IBM machine. I have finally managed to compile the code with the mpxlf_r fortran compiler, but I now get the following errors when running the code:
 
-bash-2.05b$ poe ./regcm < regcm.in
 process 0 of 4
 process 1 of 4
 process 2 of 4
 mjx should be divided by nproc
 mjx =  51    nproc =  4
 process 3 of 4
 mjx should be divided by nproc
 mjx =  51    nproc =  4
 mjx should be divided by nproc
 mjx =  51    nproc =  4
 mjx should be divided by nproc
 mjx =  51    nproc =  4
ERROR: 0031-250  task 1: Terminated
ERROR: 0031-250  task 0: Terminated
ERROR: 0031-250  task 3: Terminated
ERROR: 0031-250  task 2: Terminated
Does anyone know why I get those errors? How should I choose the nproc value?
 
When I run the parallel version, do I have to re-compile the terrain and ICBC scripts with the mpxlf_r compiler?
 
Many thanks by advance for your response.
 
Best regards,
 
Beatrice

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