Thanks, Victor. Changing the value in gribkey.tbl doesn’t help here (it was
set to a lower number than 32K anyway), and I was just showing this as an
example…I don’t actually need 100000 grids, and this was only decoding a single
grib2 file. The issue is that in reality, the full set of the NAM212 requires
more than 32K grids after the upgrade, and the default configuration remains to
send all of the grids to a single .gem file (which would be preferable to keep
if possible to avoid needing to change lots of other configurations.)
Russ
> On Sep 25, 2017, at 10:30 AM, Victor Gensini <vgensini@xxxxxxxxx> wrote:
>
> Hi Russ,
>
> What is the max-grid(s) entry in your $GEMTBL/grid/gibkey.tbl file for the
> NAM? Also, do you really need to decode 100,000 grids in one file? I believe
> GEMPAK limits total to 32,000 and I only see 658 grids in the file you
> posted. If you really need to be able to decode 100,000 grids in one file, my
> guess is that you will have to split up the files.
>
> Best,
>
> Victor Gensini
>
> On Mon, Sep 25, 2017 at 11:13 AM, Russ Schumacher
> <russ.schumacher@xxxxxxxxxxxxx <mailto:russ.schumacher@xxxxxxxxxxxxx>> wrote:
> Hi gembud,
>
> We recently upgraded to GEMPAK7.4.1 on our machine running LDM, mainly to
> alleviate the issue where the files being created for the NAM didn’t have a
> large enough maximum number of grids to accommodate all of the fields since
> the NAM upgrade last spring. The release notes mention this fix in 7.4.1.
> However, I seem to still be encountering the same problem, namely that the
> file is only getting created with a maximum # of grids of 31999 regardless of
> what number is set in the call to dcgrib2. Just as an example when running
> from the command line…I set ‘-m 100000’ but still end up with a maximum
> number of grids in file of 31999. Is there something else we need to do to
> allow for the larger # of grids?
>
> Thanks!
> Russ
>
>
>
>
>
>
> [rschumac@argun ~]$ dcgrib2 -v 1 -m 100000 -e GEMTBL=$GEMTBL
> YYYYMMDDHH_nam212_gem7.gem <
> /ldm-data/model_grib/nam/20170925/nam212.2017092512
> <tel:(201)%20709-2512>_f84.grb2
> Opening WMO Originating Center Table wmocenter.tbl...
> Opening WMO GRIB2 Parameter Table g2varswmo2.tbl...
> Opening WMO GRIB2 Vertical Coordinate Table g2vcrdwmo2.tbl...
> Opening Local GRIB2 Parameter Table g2varsncep1.tbl...
> Opening Local GRIB2 Vertical Coordinate Table g2vcrdncep1.tbl...
> [rschumac@argun ~]$ gdinfo
> GDFILE Grid file 2017092512
> <tel:(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 <tel:(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 <mailto:russ.schumacher@xxxxxxxxxxxxx>
> phone: 970.491.8084 <tel:(970)%20491-8084>
> web: http://www.atmos.colostate.edu/faculty/schumacher.php
> <http://www.atmos.colostate.edu/faculty/schumacher.php>
>
>
>
>
>
>
>
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--
Russ S. Schumacher
Associate Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php
