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[netCDF #TQX-377690]: integer attributes with LL

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  • Subject: [netCDF #TQX-377690]: integer attributes with LL
  • Date: Wed, 06 Feb 2019 13:36:13 -0700
The LL suffix means that the value should be interpreted
as a signed long long integer (e.g. 64 bits).
I cannot speak to the python interface, but ncgen should be able
to handle the LL suffixes.
My concern is that I gather you want the inferred type of these
attributes to be a 32 bit signed integer rather than a 64 bit signed
integer. I suspect this requires python-foo.

> Hello netCDF and Python folks -
> 
> I’m trying to use the netCDF4 python module to write an empty but heavily 
> formatted set of netCDF files for submission as part of CMIP6. The script I’m 
> using is on Github 
> (https://github.com/RobertPincus/RFMIP-IRF-Scripts/blob/master/generate-output-file-templates.py);
>  it requires a file you can find at 
> https://owncloud.gwdg.de/index.php/s/qzfgrHxgnIsNAMv.
> 
> If you run the script you’ll see that integer global attributes have a 
> trailing LL designation, e.g.
> (CMOR) bash-3.2$ ncdump -h rld.nc | grep LL
> :physics_index = 1LL ;
> :realization_index = 1LL ;
> :initialization_index = 1LL ;
> :forcing_index = 1LL ;
> 
> I’m not sure what this means but I do not that if I ncdump the file, ncgen 
> will not create a valid netcdf file. That’s a worry.
> 
> You’ll not that I’ve tried explicitly setting the type of the attribute 
> ("realization_index"   :int(1).
> 
> Can you tell me what it means for these attributes to be labeled “LL”? Is 
> there a way to ensure that these values are recorded as straight ints?
> ---
> Robert Pincus
> University of Colorado/NOAA Earth System Research Lab
> http://cires.colorado.edu/researcher/robert-pincus
> 
> 

=Dennis Heimbigner
  Unidata


Ticket Details
===================
Ticket ID: TQX-377690
Department: Support netCDF
Priority: Normal
Status: Open
===================
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