[Paraview] paraview & HDF5/XDMF: how to control memory usage?

[David E DeMarle]

I'll take a look for the xdmf reader.

On Wednesday, June 11, 2014, Armin Wehrfritz <dkxls23 at gmail.com> wrote:

> Hello,
>
> I know it's a bit off-topic, but since the next generation xdmf
> reader/write was mentioned in here:
>
> Will the new XDMF reader have a "Reload"/"Refresh" functionality?
>
> I'm currently using a workaround suggested by Sebastien [1], which works
> fine.
> The topic has also been discussed here [2], with no outcome I believe.
>
> Cheers,
> Armin Wehrfritz
>
> [1] http://www.paraview.org/pipermail/paraview/2013-June/028596.html
> [2] http://www.paraview.org/pipermail/paraview/2014-January/030299.html
>
>
> On 06/10/2014 10:36 PM, Jason Fleming wrote:
>
>> Hello
>>
>> I would also like to that it is great to hear that a next generation
>> XDMF reader is in the works for Paraview. I've used XDMF files very
>> successfully with Paraview; both manually generated XML to go with
>> NetCDF4 as well as HDF5/XML files generated using the XDMF2 API.
>>
>> The only rough spot I've had with the existing Paraview XDMF reader is
>> that it seems to use more and more memory when generating a time series
>> animation. If the dataset is large enough, the Paraview process will
>> eventually run out of memory. I have an unchanging unstructured mesh
>> with nodally centered data and a temporal collection with one XML file
>> and one heavy data file containing all time steps.
>>
>> I can provide a link to full size data files if that helps the
>> development/test process.
>>
>> Cheers
>> Jason
>>
>>
>> On Tue, Jun 10, 2014 at 3:05 AM, Favre Jean <jfavre at cscs.ch
>> <mailto:jfavre at cscs.ch>> wrote:
>>
>>
>>     Allow me to add my 2 cents to this thread, since Dave talks about a
>>     new generation xdmf reader/writer in the making.
>>
>>     I too use a series of files for each timestep ( one XMF file and one
>>     HDF5 file per step), since I have discovered that creating temporal
>>     collections does not work correctly if the grid resolution changes
>>     over the timesteps. I have a multi-resolution simulation. The grid
>>     starts at low res., then the resolution steadily increases. Using a
>>     temporal collection in XDMF, the grid resolution of the first grid
>>     in the temporal collection is used throughout the full time series.
>>     I see my data is read correctly, but is truncated by the lowest
>>     resolution bounds.
>>
>>     I hope this gets fixed with the new reader.
>>     TIA.
>>
>>     -----------------
>>     Jean/CSCS
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>>
>>
>> --
>> Dr. Jason G. Fleming
>> Chief Engineer, Seahorse Coastal Consulting
>> 3103 Mandy Ln
>> Morehead City, NC 28557
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>>
>>
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> opensource/opensource.html
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-- 
David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909
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