[Paraview] Causes for multiple execution of RequestData in rendering Pipeline

[Berk Geveci]

Are you running on parallel? Which paraview version are you using?

On 2/12/08, Moreland, Kenneth <kmorel at sandia.gov> wrote:
> I have no idea.  Maybe Berk knows something about the executive that would explain the multiple executions.
>
> -Ken
>
> > -----Original Message-----
> > From: paraview-bounces+kmorel=sandia.gov at paraview.org [mailto:paraview-
> > bounces+kmorel=sandia.gov at paraview.org] On Behalf Of Mike Jackson
> > Sent: Monday, February 11, 2008 7:29 AM
> > To: ParaView
> > Subject: Re: [Paraview] Causes for multiple execution of RequestData in
> > rendering Pipeline
> >
> > Nope. Inserting a print statement as the first and next to last lines
> > in RequestData() says the modified times are the same. My RequestData
> > method is being run 6 times in succession.
> >
> > Could this have something to do with UPDATE_EXTENTS and UPDATE_WHOLE
> > extents?
> >
> > Also, I do see the following 2 debug statements between Each
> > Successive RequestData() call:
> >
> > **----RequestData Ending Modified Time: 64511
> > Debug: In /Users/Shared/Kitware-CVS/ParaView3/VTK/Filtering/
> > vtkAlgorithm.h, line 151
> > vtkH5RoboMetReader (0x1eb63c60): vtkH5RoboMetReader (0x1eb63c60):
> > returning AbortExecute of 0
> >
> >
> > Debug: In /Users/Shared/Kitware-CVS/ParaView3/VTK/Filtering/
> > vtkAlgorithm.h, line 150
> > vtkH5RoboMetReader (0x1eb63c60): vtkH5RoboMetReader (0x1eb63c60):
> > setting AbortExecute to 0
> >
> > **--- RequestData Starting      Times=6 Modified Time: 64511
> >
> >
> > But since the Modified times are the same I am assuming that this
> > isn't really the problem?
> >
> >
> > On Feb 11, 2008, at 8:42 AM, Moreland, Kenneth wrote:
> >
> > > My guess is that somewhere in your RequestData method the algorithm
> > > is calling Modified on itself.  The call is probably indirect.  For
> > > example, if you are using any of the Set* methods defined by VTK
> > > macros, that will indirectly call Modified.
> > >
> > > To check this, try printing out the time stamp (this->MTime.GetMTime
> > > ()) at the beginning and the end of RequestData.  It should be the
> > > same.  If not, narrow down where it is changing.
> > >
> > > -Ken
> > >
> > >> -----Original Message-----
> > >> From: paraview-bounces+kmorel=sandia.gov at paraview.org
> > >> [mailto:paraview-
> > >> bounces+kmorel=sandia.gov at paraview.org] On Behalf Of Mike Jackson
> > >> Sent: Monday, February 11, 2008 6:35 AM
> > >> To: ParaView
> > >> Cc: Mike Jackson
> > >> Subject: [Paraview] Causes for multiple execution of RequestData in
> > >> rendering Pipeline
> > >>
> > >> Working with my custom reader I am trying to track down what I think
> > >> is a bug somewhere in the combination of my requestInformation/
> > >> RequestData methods. When my reader gets loaded, my requestData
> > >> method gets fired multiple times (up to 8 in a row it seems). I was
> > >> wondering what some of the reasons for this might be so that I might
> > >> be able to figure this out.
> > >>
> > >> Thanks for any help
> > >>
> > >> --
> > >> Mike Jackson
> > >> imikejackson & gmail * com
> > >>
> > >>
> > >>
> > >>
> > >> _______________________________________________
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> > >> ParaView at paraview.org
> > >> http://www.paraview.org/mailman/listinfo/paraview
> > >
> > >
> > >
> >
> > --
> > Mike Jackson   Senior Research Engineer
> > Innovative Management & Technology Services
> >
> >
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