I look more at how the distribute stream tracer work and learnt that it work by setting: UPDATE_PIECE_NUMBER() to 0 and UPDATE_NUMBER_OF_PIECES to 1. Apparently this cause data from process 0 to be transfer across network to other process. I make a guess here, is that correct?
On Fri, Aug 7, 2009 at 12:45 PM, Bam Ting <[email protected]> wrote: > Forgive my misconception before! I am baffelt by how this work! > > I looked closer. I see plane source on my imput is empty! bounds 1 -1 ... > on all process except 0... so that answer something! before this I suppose > that the source must be duplicate on all process, because the class doc for > vtkPStreamTracer say thaat this must be so. Now I will like to know how does > filter such as distributed stream tracer work in this case (plane source is > empty on all imput except 0)? Web doc day seed points must be the same > across on all process? Can we explain how paraview works here? > > > > > > On Fri, Aug 7, 2009 at 11:22 AM, Bam Ting <[email protected]> wrote: > >> Have some issue with a filter that operate on plane source when run with >> more than a single process. Plane source on imput seem to be duplicated >> identical on all processes (no problem), then my filter run and make a >> shallow copy of the source and pass to output (problem start!). In the >> spreadsheet view I see more points than I should in the output, + I add >> point data I see more point data as well, I explore with spreadsheet view >> show that unexpected point data all duplicate of expected. >> >> My question, how paraview handle source duplicated on all process? How >> paraview can know that the data is duplicate for plane source? How does it >> render such duplicate data? I seek to add some point data to plane source >> and provide on the output. What I need to do in the filter to avoid the >> issue? >> >> >
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