[vtkusers] vtk.vtkDistributedDataFilter() not works

[Cory Quammen]

I think you need to run your script in parallel with MPI for the
partitioning to work. See [1] for an example of how to use this
filter.

Hope that helps,
Cory

[1] http://www.vtk.org/gitweb?p=VTK.git;a=blob;f=Filters/Parallel/Testing/Cxx/DistributedData.cxx

On Sun, Nov 27, 2016 at 10:39 AM, Magician <f_magician at mac.com> wrote:
> Does anyone use the vtkDistributedDataFilter?
>
>
> On Nov 19, 2016, at 18:16, Magician <f_magician at mac.com> wrote:
>
> Hi all,
>
>
> I posted the message about partitioning datasets.
> <http://public.kitware.com/pipermail/vtkusers/2016-November/097123.html>
>
> I still trying vtk.vtkDistributedDataFilter(), but the exported data aren’t
> partitioned.
> My VTK version is 7.1.0 (pvpython with ParaView 5.2.0 RC3) and executing on
> 2 CPUs.
>
> Here is the sample code:
>
>     import vtk
>
>     source = vtk.vtkPointSource()
>     source.SetCenter((0.0, 0.0, 0.0))
>     source.SetNumberOfPoints(1000000)
>     source.SetRadius(1.0)
>     source.Update()
>
>     d3 = vtk.vtkDistributedDataFilter()
>     d3.SetInputData(source.GetOutput())
>     d3.SetBoundaryMode(0)
>     d3.Update()
>
>     writer = vtk.vtkXMLPUnstructuredGridWriter()
>     writer.SetInputData(d3.GetOutput())
>     writer.SetFileName(’test.pvtu’)
>     writer.SetNumberOfPieces(2)
>     writer.WriteSummaryFileOn()
>     writer.SetStartPiece(0)
>     writer.SetEndPiece(1)
>     writer.Write()
>
> How to partition data?
>
>
> Magician
>
>
>
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.