[Wrf-users] Producing >2Gb NetCDF files with WRF

[Kemp, Eric M (IS)]

I'm still reviewing the NetCDF documentation, but so far it seems the calling program (WRF) is supposed to pass a flag to NetCDF to turn 64-bit offset on.  So it's also a WRF issue.

And I'm using NetCDF 4.0.1.  

-Eric


-----Original Message-----
From: wrf-users-bounces at ucar.edu on behalf of Josh Hacker
Sent: Tue 5/19/2009 12:12 PM
To: Kemp, Eric M (IS)
Cc: wrfhelp at ucar.edu; wrf-users at ucar.edu
Subject: Re: [Wrf-users] Producing >2Gb NetCDF files with WRF
 
Eric,

This is a netCDF issue, not a WRF issue.  Look at the netCDF
documentation for notes on large file support, or possibly update your
version of netCDF.

Josh

Kemp, Eric M (IS) wrote:
> Dear WRF Community:
> 
> I'm unable to produce WRF NetCDF files larger than 2 Gb in size.  (I'm
> experimenting with very large domains for hurricane and climate simulations.
> Also, I'm using 64bit executables on a 64bit OS.)  When I run real.exe with
> debugging turned on, I see a "One or more variable sizes violate format
> constraints" message from NetCDF.  The on-line NetCDF documentation suggests
> using a "64 bit offset" mode when first creating the file.  Is there a reason
> WRF doesn't do this?  Is this a bug, or is there a compile time or runtime
> option for turning this on?
> 
> Thanks,
> 
> -Eric
> 
> Eric M. Kemp
> Meteorologist
> Northrop Grumman Information Systems
> Advisory Services Division (TASC)
> 4801 Stonecroft Boulevard
> Chantilly, VA 20151
> 301-286-9768              (NASA Goddard Office)
> 703-633-8300 x7078 (Chantilly SLEET Lab)
> 703-633-8300 x8278 (Chantilly Office)
> 703-449-3400              (Chantilly Fax)
> 
> 
> 
> 
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-- 
Joshua Hacker
Research Applications Laboratory
NCAR/UCAR
email: hacker at ucar.edu
voice: 303-497-8188
fax: 303-497-8386

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