From ripley at stats.ox.ac.uk  Wed Jan  2 07:59:51 2008
From: ripley at stats.ox.ac.uk (Prof Brian Ripley)
Date: Wed, 2 Jan 2008 06:59:51 +0000 (GMT)
Subject: [Rd] large netCDF files under Windows.
In-Reply-To: <Pine.LNX.4.64.0712301205540.14525@gannet.stats.ox.ac.uk>
References: <Pine.LNX.4.43.0712291844220.7069@hymn33.u.washington.edu>
	<Pine.LNX.4.64.0712301205540.14525@gannet.stats.ox.ac.uk>
Message-ID: <Pine.LNX.4.64.0801020657150.6266@gannet.stats.ox.ac.uk>

For the record: Thomas provided a test case and both ncdf and RNetCDF have 
been rebuilt with support for files > 2Gb.  Updated versions are now on 
the CRANextras repository.

On Sun, 30 Dec 2007, Prof Brian Ripley wrote:

> The netcdf code is rather silly: it uses 64-bit versions of seek etc when
> building a DLL, not on Windows.  I can rebuild it using 64-bit seek, but
> could you please send me (privately) a test case?
>
> On Sat, 29 Dec 2007, Thomas Lumley wrote:
>
>> Has anyone successfully used R to access netCDF files larger than 2Gb
>> under Windows?
>>
>> With the version of the ncdf package that Brian Ripley provides for CRAN
>> extras I get an assertion failure with a 12Gb file, but not a 1Gb subset
>> of it. The same 12Gb file is ok with ncdf on Mac OS X (32bit R) and on
>> Linux(64bit R).

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595



[Rd] large netCDF files under Windows.
Prof Brian Ripley