[petsc-users] HDF5 and ParaView

[Matthew Knepley]

On Fri, Jul 10, 2020 at 8:33 AM Lisandro Dalcin <dalcinl at gmail.com> wrote:

> On Thu, 9 Jul 2020 at 23:11, Matthew Knepley <knepley at gmail.com> wrote:
>
>> On Thu, Jul 9, 2020 at 3:28 PM David Scott <d.scott at epcc.ed.ac.uk> wrote:
>>
>>> Matt,
>>>
>>> I'll have a go at writing Xdmf files.
>>>
>>> Am I right in thinking that VTK files are written sequentially?
>>>
>>
>> Yes, it is a rightly despised format, suitable only for beggars and
>> serial jobs :)
>>
>>
> By "rightly despised format", I hope you are talking about the legacy VTK
> files (the traditional .vtk extension).
> The new XML formats with <AppendedData encoding="raw"> are quite easy to
> write in parallel with MPI/IO (at least *.vtu files, which is what I'm
> using).
>

That is true. Do they also get rid of the single mesh and single timstep
requirements? HDF5+XDMF makes it much easier since
we can put multiple meshes and timesteps in one file.

  Thanks,

    Matt


> --
> Lisandro Dalcin
> ============
> Research Scientist
> Extreme Computing Research Center (ECRC)
> King Abdullah University of Science and Technology (KAUST)
> http://ecrc.kaust.edu.sa/
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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