[RegCNET] problem in running RegCM4

[James Ciarlo`]

Dear Pyarimohan,

The DT depends on the resolution of your simulation. What is the value for
ds in your regcm.in file? and what is the value of dt you are using?

Check here for more information:
http://eforge.escience-lab.org/gf/project/regcm/wiki/?pagename=RegCM-4+timesteps

<http://eforge.escience-lab.org/gf/project/regcm/wiki/?pagename=RegCM-4+timesteps>I
am currently running simulations with 50 km resolution, and am using a 30 s
time step.

Regards,

James

On 6 January 2011 13:21, pyarimohan maharana <chiku777rock at gmail.com> wrote:

> Dear all,
> i am using intel compiler (10.1.011) for running RegCM4. i was able to
> simulate for few years. but recently when i am running RegCM4.0, it is
> showing CFL violation and suggests to decrease DT.
> i decreased the DT to smaller values  but the same problem is coming again
> and again.
>
>
>
>
>
>  fac =            2   60.0000000000000
>  Writing output files in direct access format
>
>  ******* OPENING NEW OUTPUT FILES:  1990060100
>  OPENING NEW OUT FILE: /home/pmaharana/RCM4/output//ATM.1990060100
>  OPENING NEW SRF FILE: /home/pmaharana/RCM4/output//SRF.1990060100
>  OPENING NEW RAD FILE: /home/pmaharana/RCM4/output//RAD.1990060100
>  OUT-history written date =    1990060100.00000
>  LAND variables written at   1990060100   2.50000000000000
>  Writing rad fields at ktau =            1  1990060100
>  WHUUUUBBBASAAAGASDDWD!!!!!!!!!!!!!!!!
>  No more atmosphere here....
>  CFL violation detected, so model STOP
>  #####################################
>  #            DECREASE DT !!!!       #
>  #####################################
>   -------------- FATAL CALLED ---------------
>   Fatal in file: tend.F90 at line:   2280
>   CFL VIOLATION
>   -------------------------------------------
> rank 0 in job 1  climate.jnu.ac.in_60366   caused collective abort of all
> ranks
>   exit status of rank 0: return code 1
>
>
>
> Please help
> Thank in advance
>
> Pyarimohan maharana
>
>
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