[Paraview] Using paraview with pvserver

[Herwig Zilken]

Dear Utkarsh,

I am also interested in the visualization of big data. You wrote that
the XML VTK reader only reads portion relevant to the parallel process.
Is this also true for unstructured data? And is there any limitation in
the size of the data for XML VTK? I remember that there are 32 bit
pointers in the XML VTK files.
Is this still true? If yes, we would have a limitation of 4 GB.


Thanks,

Herwig



Am 06.03.2013 19:41, schrieb Utkarsh Ayachit:
> Patrick,
>
> With legacy VTK format, ParaView does the following:
>
> 1. for unstructured data (vtkPolyData, vtkUnstructuredGrid etc),
> ParaView reads the entire file on the root node and then partitions
> and distributes the data among all processes so the rest of the
> processing i.e. filters, etc. can distribute the work across
> processes.
>
> 2. for image data and other structured data, however, ParaView reads
> the entire file on all processes and then "crops" the data to a subset
> to distribute further processing between processes. This is lame and
> we are going to change this in near future to do something similar to
> what we do for unstructured data.
>
> Note this is specific to legacy VTK files. If you write out a XML VTK
> file (vti) then ParaView smartly reads only the portions relevant to
> the process in parallel.
>
> Hopefully, that clarifies things a bit.
>
> Utkarsh
>



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