Hello, I have done some work in VTK towards that. Currently, this works only with structured data.
If your data is structured, you can use vtkPStructuredGridConnectivity to generate a bitmask (an unsigned char associated with each mesh node). The bitmask can then be queried using the vtkGhostArray (See http://www.vtk.org/doc/nightly/html/classvtkGhostArray.html) to see which properties are "turned on" for the given mesh node. If the IGNORE property is ON, that means that the node is a duplicate with respect to the given process and should not be taken into account. The implementation assigns ownership to the lowest rank of a mesh node -- on all other processes, the IGNORE property is set to ON. TestPStructuredGridConnectivity illustrates how this can be used. The test ensures that: (1) Ensuring that the total number of nodes computed is invariant to the number of processes/partitions (2) Ensuring that computing the average for a given field is also invariant to the numer of processes/partitions If this could be useful in your work, I can elaborate more if you have any questions on how to use it. Best, George On Fri, Aug 17, 2012 at 6:18 PM, Sohail Shafii <[email protected]> wrote: > Very well. I think that should be fine for now. > > Sohail > > ________________________________ > From: David Thompson <[email protected]> > To: Sohail Shafii <[email protected]> > Cc: David Thompson <[email protected]>; "[email protected]" > <[email protected]> > Sent: Friday, August 17, 2012 4:15 PM > > Subject: Re: [Paraview] Numpy masking (via programm filter) not quite > working in parallel > > Hi Sohail, > >> ... Will this point sharing information become available in later versions >> of ParaView? i.e. would it ever be easy to identify and count duplicates? > > I don't know of any plans to implement this (but that doesn't mean there > aren't). > > David > > > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
