overcoming netcdf3 limits

John Caron caron at unidata.ucar.edu
Tue Apr 24 11:31:20 MDT 2007


Hi Rob:

Could you give use case(s) where the limits are being hit?
I'd be interested in actual dimension sizes, number of variables, whether you are using a record dimension, etc.

Robert Latham wrote:
> Hi
> 
> Over in Parallel-NetCDF land we're running into users who find even
> the CDF-2 file format limitations, well, limiting. 
> 
> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf/NetCDF-64-bit-Offset-Format-Limitations.html
> 
> http://www.unidata.ucar.edu/software/netcdf/docs/faq.html#Large%20File%20Support10
> 
> If we worked up a CDF-3 file format for parallel-netcdf (off the top
> of my head, maybe a 64 bit integer instead of an unsigned 32 bit
> integer could be used to describe variables), would the serial netcdf
> folks be interested, or are you looking to the new netcdf-4 format to
> take care of these limits?
> 
> Thanks
> ==rob
> 

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