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Re: NetCDF question
- Subject: Re: NetCDF question
- Date: Tue, 27 Jun 1995 16:58:48 -0600
Hi Robert,
> I have been told that NetCDF files have an internal restriction of 2
> gigabytes per file, on any architecture (even those with 64 bit
> filesystems). Can you confirm or deny this restriction?
Confirmed. The type for direct access offsets in the file is a signed
32-bit integer, which restricts the offsets to 2 Gbytes. This restriction
would be relatively easy to remove in the library, but the resulting data
files would not be portable to architectures that didn't support a 64-bit
integer type, so they would not be very useful. One of the features of
netCDF files is their portability to a wide range of platforms, including
PCs. workstations, and supercomputers. So we probably won't lift this size
restriction until no netCDF users are using a machine without a 64-bit
integer type.
______________________________________________________________________________
Russ Rew UCAR Unidata Program
address@hidden http://www.unidata.ucar.edu
