[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[netCDF #FYL-827092]: HDF5

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [netCDF #FYL-827092]: HDF5
  • Date: Thu, 15 May 2014 09:10:28 -0600
Hi Pedro,

> Does netCFD needs HDF5?

It depends on what you're using netCDF for.  NetCDF-4 software
can be built with only support for the classic netCDF data model
and formats.  In that case it won't need HDF5, but it will read
netCDF-3 classic data fine, and be able to write new netCDF files
that conform to the simpler netCDF classic data model.

If you need any of the features supported only by the enhanced
netCDF data model, such as reading or writing compressed data,
chunking (also called multidimensional tiling), multiple unlimited
dimensions, additional unsigned primitive data types, real strings,
or user-defined data types, then you will need an HDF5 library.

Here's a short presentation on the differences:

   http://www.unidata.ucar.edu/netcdf/workshops/2012/netcdf4_intro/netcdf4.pdf

and here's an FAQ on the differences:

   http://www.unidata.ucar.edu/netcdf/docs/faq.html#formats-and-versions

To build without HDF5, see the section on building with the classic library 
only 
here:

   
http://www.unidata.ucar.edu/netcdf/docs/getting_and_building_netcdf.html#building

--Russ


   
Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: FYL-827092
Department: Support netCDF
Priority: Normal
Status: Closed