[Dune-devel] VTK HDF5 Format

[Oliver Sander]

Hi Simon,

I think HDF5 support in Dune is generally a good idea, VTK or otherwise.
In particular, I have been thinking recently to rewrite the grid-hierarchy-backup
code in UGGrid from scratch using HDF5, rather than trying to get the existing
code to work again.  That's not something I am going to start tomorrow, but still...

Best,
Oliver



On 15.11.22 13:42, Simon Praetorius wrote:
> Hi everyone,
> 
> Recently (July 2022) the VTK library added direct support for a VTK HDF5 format, see https://www.kitware.com/vtk-hdf-reader/ Would this be interesting for anyone to have directly in Dune as a writer? Maybe related also the XDMF Format. We are always looking for a way to write lots of files, e.g., a highly partitioned domain in an instationary process with many timesteps. In HPC centers typically there is a quota in number of files and total disc space. Could there a HDF5 filewriter help?
> 
> The dune-vtk module provides also some solutions for our problems, e.g., one can write timeseries files, where all timesteps are stored in a single vtu file. Also the compressed output helps to reduce the total size, bit both come also with a price.
> 
> Is anyone interested in implementing HDF5 support? Maybe we could extend the dune-vtk module in this direction. Not sure whether paraview does support VTK HDF5 directly.  (I have found MRs in the paraview git related to this)
> 
> Best,
> Simon
> 
> 
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