[MITgcm-support] STOP ABNORMAL END: S/R INI_PRESSURE

[kunal madkaiker]

Hello Martin and Kaveh,

As mentioned by both of you, I had NaN values in my input files (over land
region),
which I replaced with zero. Now the model is running successfully.

Thanks to you both.

Regards
Kunal

On Mon, Feb 24, 2020 at 2:46 PM Martin Losch <Martin.Losch at awi.de> wrote:

> Hi Kunal,
>
> this iteration solves the hydrostatic pressure equation (dp = - g rho(z)
> dz) and usually converges very quickly.
>
> I think you need to make sure that your input fields do not contain any
> NaN nor funny values like -999.9
>
> The input fields should have useful values where there is ocean, and
> probably zero over land (although that will be masked by the model anyway.
> If you get a NaN in the first iteration then this is a clear indication
> that there are still NaNs left somewhere in the input fields.
>
> Martin
>
> > On 23. Feb 2020, at 13:34, kunal madkaiker <kunal.madkaiker02 at gmail.com>
> wrote:
> >
> > Dear MITgcm Users,
> >
> > I am trying to run MITgcm along West Coast of India, using a Curvilinear
> grid.
> > I have given climatological profile of Temperature, Salinity and U,V
> surface wind stress for Dec.
> >
> > Model is unable to compute RMS-difference for hydrostatic pressure. I
> tried to run model with
> > tRef and sRef values and it gave me result. So, I know problem may lie
> in my temperature and
> > salinity files, but unable to figure out where exactly, since I am able
> to list and plot these
> > netcdf files correctly.
> >
> > I have also tried converting NaN values into -999.9 in the input files
> but isnt helping.
> >
> > STDERR.0059 states,
> > (PID.TID 0059.0001) ** WARNING ** MNC_READPARMS: incomplete MNC pickup
> files implementation
> > (PID.TID 0059.0001) ** WARNING ** MNC_READPARMS: => pickup_write_mnc=T
> not recommanded
> > (PID.TID 0059.0001) ** WARNING ** MNC_READPARMS: => pickup_read_mnc=T
> not working for some set-up
> > (PID.TID 0059.0001) ** Warning ** KPP_READPARMS: ignores "data.kpp" file
> since
> > (PID.TID 0059.0001) ** Warning ** KPP_READPARMS: useKPP= F (set from
> "data.pkg")
> > (PID.TID 0059.0001) ** WARNING ** INI_MODEL_IO: globalFiles=TRUE is not
> safe in Multi-processors (MPI) run
> > (PID.TID 0059.0001) ** WARNING ** INI_MODEL_IO: use instead
> "useSingleCpuIO=.TRUE."
> > (PID.TID 0059.0001) ** WARNING ** INI_MODEL_IO: use tiled-files to write
> sections (for OBCS)
> > (PID.TID 0059.0001) *** ERROR *** Initial hydrostatic pressure did not
> converge after 15 steps
> >
> > I edited the ini_pressure.F source code and changed steps from 15 to 30
> but error persists.
> >
> > STDERR.0059 states
> > (PID.TID 0059.0001) //
> =======================================================
> > (PID.TID 0059.0001) // Check Model config. (CONFIG_CHECK):
> > (PID.TID 0059.0001) // CONFIG_CHECK : Normal End
> > (PID.TID 0059.0001) //
> =======================================================
> > (PID.TID 0059.0001)
> > (PID.TID 0059.0001)  MDS_READ_FIELD: opening global file:
> new_trial_temp_nov.bin
> > (PID.TID 0059.0001)  MDS_READ_FIELD: opening global file:
> new_trial_salt_nov.bin
> > (PID.TID 0059.0001) Start initial hydrostatic pressure computation
> > (PID.TID 0059.0001) Iteration   1, RMS-difference =                 NaN
> >
> > Kindly assist with the error. Thanks in advance!
> > Please let me know if any additional information is required.
> >
> > Regards
> > Kunal Madkaiker
> > Research Scholar,
> > Centre for Atmospheric Science, IIT Delhi
> > _______________________________________________
> > MITgcm-support mailing list
> > MITgcm-support at mitgcm.org
> > http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
>
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