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<BODY style="MARGIN: 4px 4px 1px; FONT: 10pt Tahoma">No it creates 1 pvtu and 4 vtus but each vtu is approximately if not exactly the same size and contains the entire mesh. To be clear I am not running this with MPI. Do I have to? And that is pretty much my entire pipeline. How does the distributed data filter know how to break up the mesh? Am I missing a call?<BR><BR>>>> "Berk Geveci" <berk.geveci@kitware.com> 12/29/2009 1:03 PM >>><BR>That should work (in theory). It is not?<BR><BR>On Tue, Dec 29, 2009 at 1:00 PM, Terry Jordan <Terry.Jordan@netl.doe.gov> wrote:<BR>> I am trying this:<BR>><BR>> vtkDistributedDataFilter *dataFilter = vtkDistributedDataFilter::New();<BR>> dataFilter->SetInput(filteredGrid);<BR>> dataFilter->SetBoundaryMode( 0 );<BR>><BR>> vtkXMLPUnstructuredGridWriter *writer =<BR>> vtkXMLPUnstructuredGridWriter::New();<BR>> writer->SetInput( dataFilter );<BR>> writer->SetFileName(vtkFilename);<BR>> writer->SetNumberOfPieces( 4 );<BR>> writer->SetStartPiece(0);<BR>> writer->SetEndPiece(3);<BR>> writer->Write();<BR>><BR>> Do I have to use MPI?<BR>><BR>>>>> "Berk Geveci" <berk.geveci@kitware.com> 12/29/2009 12:55 PM >>><BR>> Inserting a distributed data filter between the reader and the writer<BR>> should theoretically work. Of course, you can easily run a ParaView<BR>> (pvbatch) script with 4 processes to do the same thing.<BR>><BR>> On Tue, Dec 29, 2009 at 9:07 AM, Terry Jordan <Terry.Jordan@netl.doe.gov><BR>> wrote:<BR>>> Yes, I want to break the mesh down. I want to partition the entire data<BR>>> set<BR>>> into 4 chunks. Does anyone have a link to sample code? I tried to use<BR>>> the<BR>>> distributed data filter, but was unsuccessful in its implementation. I<BR>>> assume the file format would still be a pvtu and 4 vtus.<BR>>><BR>>>>>> "Berk Geveci" <berk.geveci@kitware.com> 12/28/2009 10:18 PM >>><BR>>> or the distributed data filter in VTK.<BR>>><BR>>> On Mon, Dec 28, 2009 at 5:57 PM, Dominik Szczerba <dominik@itis.ethz.ch><BR>>> wrote:<BR>>>> -----BEGIN PGP SIGNED MESSAGE-----<BR>>>> Hash: SHA1<BR>>>><BR>>>> I don't think this is intended to partition your mesh, or at least I<BR>>>> would be highly (if positively) surprised.<BR>>>><BR>>>> Do you not mean to partition a mesh for e.g. domain decomposition<BR>>>> purposes or other parallel applications? Then metis or chaco is what you<BR>>>> need here.<BR>>>><BR>>>> Dominik<BR>>>><BR>>>> Terry Jordan wrote:<BR>>>>><BR>>>>> I am trying to partition a unstructured grid into 4 evenly sized<BR>>>>> pieces. Currently I am doing the following:<BR>>>>><BR>>>>> vtkXMLPUnstructuredGridWriter *writer =<BR>>>>> vtkXMLPUnstructuredGridWriter::New();<BR>>>>> writer->SetInput( filteredGrid );<BR>>>>> writer->SetFileName(vtkFilename);<BR>>>>> writer->SetNumberOfPieces( 4 );<BR>>>>> writer->SetStartPiece(0);<BR>>>>> writer->SetEndPiece(3);<BR>>>>> writer->Write();<BR>>>>><BR>>>>> filteredGrid is a vtkUnstructuredGrid<BR>>>>><BR>>>>> The result of this code is 4 copies of the data (1 pvtu and 4 vtu).<BR>>>>> Each is identical to the original data. What am I missing? I am<BR>>>>> running this code on a single cpu without the use of MPI. Do I have to<BR>>>>> use MPI?<BR>>>>><BR>>>>> Thanks in advance.<BR>>>>><BR>>>>><BR>>>>> ------------------------------------------------------------------------<BR>>>>><BR>>>>> _______________________________________________<BR>>>>> Powered by www.kitware.com<BR>>>>><BR>>>>> Visit other Kitware open-source projects at<BR>>>>> <A href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</A><BR>>>>><BR>>>>> Please keep messages on-topic and check the VTK FAQ at:<BR>>>>> <A href="http://www.vtk.org/Wiki/VTK_FAQ">http://www.vtk.org/Wiki/VTK_FAQ</A><BR>>>>><BR>>>>> Follow this link to subscribe/unsubscribe:<BR>>>>> <A href="http://www.vtk.org/mailman/listinfo/vtkusers">http://www.vtk.org/mailman/listinfo/vtkusers</A><BR>>>><BR>>>> -----BEGIN PGP SIGNATURE-----<BR>>>> Version: GnuPG v1.4.9 (GNU/Linux)<BR>>>><BR>>>> iEYEARECAAYFAks5N84ACgkQ/EBMh9bUuzL60wCg45gdE2GhJbZT9zztDLMJMRiX<BR>>>> RGoAoNjFFwEpY9IfusrMv2YWiOj/mrEg<BR>>>> =Rjc+<BR>>>> -----END PGP SIGNATURE-----<BR>>>> _______________________________________________<BR>>>> Powered by www.kitware.com<BR>>>><BR>>>> Visit other Kitware open-source projects at<BR>>>> <A href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</A><BR>>>><BR>>>> Please keep messages on-topic and check the VTK FAQ at:<BR>>>> <A href="http://www.vtk.org/Wiki/VTK_FAQ">http://www.vtk.org/Wiki/VTK_FAQ</A><BR>>>><BR>>>> Follow this link to subscribe/unsubscribe:<BR>>>> <A href="http://www.vtk.org/mailman/listinfo/vtkusers">http://www.vtk.org/mailman/listinfo/vtkusers</A><BR>>>><BR>>><BR>>><BR>><BR>><BR><BR></BODY></HTML>