Re: [gembud] dcgrib2 maxgrids

Hi Russ,

What is the max-grid(s) entry in your $GEMTBL/grid/gibkey.tbl file for the
NAM? Also, do you really need to decode 100,000 grids in one file? I
believe GEMPAK limits total to 32,000 and I only see 658 grids in the file
you posted. If you really need to be able to decode 100,000 grids in one
file, my guess is that you will have to split up the files.

Best,

Victor Gensini

On Mon, Sep 25, 2017 at 11:13 AM, Russ Schumacher <
russ.schumacher@xxxxxxxxxxxxx> wrote:

> Hi gembud,
>
> We recently upgraded to GEMPAK7.4.1 on our machine running LDM, mainly to
> alleviate the issue where the files being created for the NAM didnât have a
> large enough maximum number of grids to accommodate all of the fields since
> the NAM upgrade last spring.  The release notes mention this fix in 7.4.1 .
> However, I seem to still be encountering the same problem, namely that the
> file is only getting created with a maximum # of grids of 31999 regardless
> of what number is set in the call to dcgrib2.  Just as an example when
> running from the command lineâI set â-m 100000â but still end up with a
> maximum number of grids in file of 31999.  Is there something else we need
> to do to allow for the larger # of grids?
>
> Thanks!
> Russ
>
>
>
>
>
>
> [rschumac@argun ~]$ dcgrib2 -v 1 -m 100000 -e GEMTBL=$GEMTBL
> YYYYMMDDHH_nam212_gem7.gem < /ldm-data/model_grib/nam/20170925/nam212.
> 2017092512 <(201)%20709-2512>_f84.grb2
>  Opening WMO Originating Center Table wmocenter.tbl...
>  Opening WMO GRIB2 Parameter Table g2varswmo2.tbl...
>  Opening WMO GRIB2 Vertical Coordinate Table g2vcrdwmo2.tbl...
>  Opening Local GRIB2 Parameter Table g2varsncep1.tbl...
>  Opening Local GRIB2 Vertical Coordinate Table g2vcrdncep1.tbl...
> [rschumac@argun ~]$ gdinfo
>  GDFILE    Grid file                         2017092512 <(201)%20709-2512>
> _nam212_gem7.gem
>  LSTALL    Full list flag                    YES
>  OUTPUT    Output device/filename            T
>  GDATTIM   Grid date/time                    LAST
>  GLEVEL    Grid level                        500
>  GVCORD    Grid vertical coordinate          PRES
>  GFUNC     Scalar grid                       TMPC
>  Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
>  GEMPAK-GDINFO>r
>
>  GRID FILE: 2017092512 <(201)%20709-2512>_nam212_gem7.gem
>
>  GRID NAVIGATION:
>      PROJECTION:          LCC
>      ANGLES:                25.0   -95.0    25.0
>      GRID SIZE:              185     129
>      LL CORNER:            12.1900 -133.4590
>      UR CORNER:            57.2893  -49.3860
>
>  GRID ANALYSIS BLOCK:
>       UNKNOWN ANALYSIS TYPE
>
>  Number of grids in file:   658
>
>  Maximum number of grids in file:  31999
>
>  [GDU 2]  Did not find any matching grids.
>  Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
>  GEMPAK-GDINFO>
>
>
>
> --
> Russ S. Schumacher
> Associate Professor
> Department of Atmospheric Science
> Colorado State University
> e-mail: russ.schumacher@xxxxxxxxxxxxx
> phone: 970.491.8084 <(970)%20491-8084>
> web: http://www.atmos.colostate.edu/faculty/schumacher.php
>
>
>
>
>
>
>
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