[Ncep.list.fv3-announce] fv3 rstart

Shrinivas Moorthi - NOAA Federal shrinivas.moorthi at noaa.gov
Fri Apr 14 23:42:36 UTC 2017


Thanks Rusty, for clarification.
Moorthi

On Fri, Apr 14, 2017 at 7:41 PM, Rusty Benson - NOAA Federal <
rusty.benson at noaa.gov> wrote:

> Moorthi,
>
> When running with the NGGPS ICs, mountain=.false. is needed.  Otherwise as
> you've found, the model will try to build it's own topography, when you
> really want the topography from the orography maker.  It is for a restart
> that mountain must be set to .true. so as to preserve the original
> topography.
>
> Rusty
> --
> Rusty Benson, PhD
> Modeling Systems Group
> NOAA Geophysical Fluid Dynamics Lab
> Princeton, NJ
>
> On Fri, Apr 14, 2017 at 7:33 PM, Shrinivas Moorthi - NOAA Federal <
> shrinivas.moorthi at noaa.gov> wrote:
>
>> Rusty,
>>    I am a bit confused.  I have been running all this time with
>> "mountain=.false."
>> But now I set "mountain=.true." and my job crashed with
>> "Rank 3 [Fri Apr 14 23:25:03 2017] [c5-0c2s12n0] application called
>> MPI_Abort(MPI_COMM_WORLD, 1) - process 3
>>
>> FATAL from PE     0: surfdrv: surface file INPUT/topo1min.nc not found !"
>>
>> This is something new.  How am I to specify  orography?
>> Or do I have to really set "mountain='false."?
>> Thanks
>> Moorthi
>>
>>
>> On Fri, Apr 14, 2017 at 2:47 PM, Rusty Benson - NOAA Federal <
>> rusty.benson at noaa.gov> wrote:
>>
>>> I'm copying this email trail to the mail list for everyone to benefit
>>> regarding the changes for restart runs.  Let me know if anything is unclear.
>>>
>>> na_init determines how many backward/forward adiabatic preconditioning
>>> steps there are for the ICs.  This only needs to be done for the ICs and
>>> not any restart.
>>>
>>> make_nh control whether to re-initialize thel non-hydrostatic variables
>>> "w" and "dz".  For a restart, these do not need to be initialized as they
>>> are part of the restart files.
>>>
>>> external_ic determines whether the data is coming from restarts or from
>>> an external source:  NGGPS, ECMWF, NCEP, etc.
>>>
>>> nggps_ic is a further refinement regarding the type of external IC being
>>> utilized.
>>>
>>> mountain deals with terrain.  If set to .false. flat-earth is assumed
>>> (phis=geopotential=0)
>>>
>>> warm_start determines whether restart files are expected or not.
>>>
>>>
>>>
>>> Rusty
>>> --
>>> Rusty Benson, PhD
>>> Modeling Systems Group
>>> NOAA Geophysical Fluid Dynamics Lab
>>> Princeton, NJ
>>>
>>> On Wed, Apr 12, 2017 at 11:38 PM, Fanglin Yang - NOAA Affiliate <
>>> fanglin.yang at noaa.gov> wrote:
>>>
>>>> Jun,
>>>>
>>>> I made another try with phy_data* included. The warm restart run with
>>>> NSST appeared to be working.
>>>> STMP: /gpfs/hps/stmp/emc.glopara/fv3test2017041100gfsfcst1
>>>> ROTDIR: /gpfs/hps/ptmp/emc.glopara/prfv3test/gfs.20170411
>>>>
>>>> Although I am using the following settings
>>>>
>>>>
>>>> *set make_nh = ".T."   set nggps_ic = ".T."*
>>>>    set mountain = ".T."
>>>>    set external_ic = ".F."
>>>>    set warm_start = ".T."
>>>>
>>>>
>>>> *  set na_init = 1*
>>>>
>>>>
>>>> *So why do we need to change make_nh, nggps_ic and na_init to different
>>>> values from cold to warm start?*
>>>>
>>>> *Fanglin*
>>>>
>>>> On Wed, Apr 12, 2017 at 10:54 AM, Jun Wang - NOAA Affiliate <
>>>> jun.wang at noaa.gov> wrote:
>>>>
>>>>> Rusty ,
>>>>>
>>>>> I would like to check with you if the following setting you sent out
>>>>> before for restart still works for nsst restart in IPD4?
>>>>>
>>>>>
>>>>>    set make_nh = ".F."
>>>>>    set nggps_ic = ".F."
>>>>>    set mountain = ".T."
>>>>>    set external_ic = ".F."
>>>>>    set warm_start = ".T."
>>>>>    set na_init = 0
>>>>>
>>>>>
>>>>> Thanks.
>>>>>
>>>>> Jun
>>>>>
>>>>> On Mon, Dec 12, 2016 at 3:25 PM, Rusty Benson - NOAA Federal <
>>>>> rusty.benson at noaa.gov> wrote:
>>>>>
>>>>>> Hi Jun,
>>>>>>
>>>>>> You were really close with your attempt.  Here are the things we've
>>>>>> changed for seamless restarts when running multi-year AMIP-style runs with
>>>>>> FV3GFS:
>>>>>>
>>>>>>    set make_nh = ".F."
>>>>>>    set nggps_ic = ".F."
>>>>>>    set mountain = ".T."
>>>>>>    set external_ic = ".F."
>>>>>>    set warm_start = ".T."
>>>>>>    set na_init = 0
>>>>>>
>>>>>>
>>>>>> The current date in coupler_nml is not a big deal as the beginning
>>>>>> date and current date are encoded in the coupler.res file.
>>>>>>
>>>>>> For your own information, the gfs*.nc files are used only for the
>>>>>> initial state and could be deleted from the INPUT directory for restart
>>>>>> runs.
>>>>>>
>>>>>> Let me know if you have any other questions or issues trying to
>>>>>> restart a run.
>>>>>>
>>>>>> thanks - Rusty
>>>>>> --
>>>>>> Rusty Benson, PhD
>>>>>> Modeling Systems Group
>>>>>> NOAA Geophysical Fluid Dynamics Lab
>>>>>> Princeton, NJ
>>>>>>
>>>>>> On Mon, Dec 12, 2016 at 2:24 PM, Jun Wang - NOAA Affiliate <
>>>>>> jun.wang at noaa.gov> wrote:
>>>>>>
>>>>>>> Rusty,
>>>>>>>
>>>>>>> I was trying to run a restart case for fv3 but failed. Would you
>>>>>>> please let me know if I missed anything to restart fv3? Here is what I did:
>>>>>>>
>>>>>>> 1) Run fv3gfs for 5 days. I saw a RESTART directory in the run
>>>>>>> directory with files such as  coupler.res, fv_core.res.nc, and 6
>>>>>>> tiles of files such as fv_core.res.tile1.nc, fv_srf_wnd.res.tile1.nc,
>>>>>>> fv_tracer.res.tile1.nc and sfc_data.tile1.nc.
>>>>>>>
>>>>>>> 2) In the input.nml, I changed the values of three namelist variable
>>>>>>> in fv_core_nml:
>>>>>>>
>>>>>>> warm_start from .F. to .T.
>>>>>>> external_ic from .T. to .F.
>>>>>>> nggps_ic from .T. to .F.
>>>>>>>
>>>>>>> 3) I copy-ed all the restart files to the INPUT directory under
>>>>>>> restart run directory.
>>>>>>>
>>>>>>> But now I got error message:
>>>>>>>
>>>>>>> WARNING from PE   145: diag_manager_mod::send_data_3d: A value for
>>>>>>> dynamics in field slp (Min:   7.79516E+002, Max:   1.01180E+003) is outside
>>>>>>> the range [  8.00000E+002,  1.20000E+003], and not equal to the missing
>>>>>>> value.
>>>>>>> ...
>>>>>>>
>>>>>>> forrtl: error (76): Abort trap signal
>>>>>>> Image              PC                Routine            Line
>>>>>>> Source
>>>>>>> fv3_gfs_nh.prod.6  00000000017951D5  Unknown               Unknown
>>>>>>> Unknown
>>>>>>> ...
>>>>>>>
>>>>>>> Any clue that what I might do wrong? Thanks.
>>>>>>>
>>>>>>> Jun
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Fanglin Yang, Ph.D.
>>>> Environmental Modeling Center
>>>> National Centers for Environmental Prediction
>>>> 301-6833722 <(301)%20683-3722>; fanglin.yang at noaa.gov
>>>> http://www.emc.ncep.noaa.gov/gmb/wx24fy/fyang/
>>>> http://www.emc.ncep.noaa.gov/gmb/STATS_vsdb/
>>>>
>>>
>>>
>>> _______________________________________________
>>> Ncep.list.fv3-announce mailing list
>>> Ncep.list.fv3-announce at lstsrv.ncep.noaa.gov
>>> https://www.lstsrv.ncep.noaa.gov/mailman/listinfo/ncep.list.fv3-announce
>>>
>>>
>>
>>
>> --
>> Dr. Shrinivas Moorthi
>> Research Meteorologist
>> Global Climate and Weather Modeling Branch
>> Environmental Modeling Center / National Centers for Environmental
>> Prediction
>> 5830 University Research Court - (W/NP23), College Park MD 20740 USA
>> Tel: (301)683-3718 <(301)%20683-3718>
>>
>> e-mail: Shrinivas.Moorthi at noaa.gov
>> Phone:  (301) 683-3718   Fax: (301) 683-3718
>>
>
>


-- 
Dr. Shrinivas Moorthi
Research Meteorologist
Global Climate and Weather Modeling Branch
Environmental Modeling Center / National Centers for Environmental
Prediction
5830 University Research Court - (W/NP23), College Park MD 20740 USA
Tel: (301)683-3718

e-mail: Shrinivas.Moorthi at noaa.gov
Phone:  (301) 683-3718   Fax: (301) 683-3718
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