[Paraview] PV 3.12.0 coprocessing problem when using multiple filters

Sun Nov 13 14:18:14 EST 2011

I hope that's not the case that the slice has to go through each process's
grid domain.  I think it just needs to go through one of the process's grid
domain such that the global number of points and cells is greater than 0.
I will check on this though.

Andy

On Sat, Nov 12, 2011 at 3:57 AM, Takuya OSHIMA
<oshima at eng.niigata-u.ac.jp>wrote:

> Thanks for all the input guys. Indeed Pat's tip did the trick, in my case:
>
>    if Slice1.GetDataInformation().GetNumberOfPoints():
>        DataRepresentation2.ColorArrayName = 'p'
>
> I am still new to coprocessing so I am not getting things right but
> here is my deduction: I am running my simulation code in parallel with
> 8 processes with one cell thickness of ghost layers. Slice1 does
> intersect the domain, but not all of parallel decomposed
> subdomains. Hence the error is issued for the processes that have no
> slice data.
>
> Meanwhile I noticed that the slice in oneSlice.py just have happened
> to locate exactly on interprocessor boundaries and intersected all of
> parallel decomposed subdomains at the ghost layers. That explains why
> the script worked without error.
>
> Takuya OSHIMA, Ph.D.
> Faculty of Engineering, Niigata University
> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
>
> From: pat marion <pat.marion at kitware.com>
> Subject: Re: [Paraview] PV 3.12.0 coprocessing problem when using multiple
> filters
> Date: Fri, 11 Nov 2011 20:08:54 -0500
>
> > That's right, if the output has no point or cell data, then assigning the
> > ColorArrayName property will throw an exception.  It's kind of an
> annoying
> > behavior.  So I'll work around this by writing code such as:
> >
> > if mySlice.GetDataInformation().GetNumberOfPoints():
> >     rep.ColorArrayName='p'
> >
> >
> > Pat
> >
> > On Fri, Nov 11, 2011 at 12:39 PM, Andy Bauer <andy.bauer at kitware.com>
> wrote:
> >
> >> Another thing to check is if there are any cells in the output from the
> >> second slice filter.  In the ParaView GUI, i started with the mandelbrot
> >> source and then created a slice filter that didn't intersect the domain.
> >> After that there wasn't any point or cell data in the output.
> >>
> >> Andy
> >>
> >>
> >> 2011/11/11 Takuya OSHIMA <oshima at eng.niigata-u.ac.jp>
> >>
> >>> I'm not in a place where I can test the line 323 modification right
> >>> now but the cell array p is present. Please note that oneSlice.py
> >>> which also colors by cell p works.
> >>>
> >>> Takuya OSHIMA, Ph.D.
> >>> Faculty of Engineering, Niigata University
> >>> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
> >>>
> >>> From: Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
> >>> Subject: Re: [Paraview] PV 3.12.0 coprocessing problem when using
> >>> multiple filters
> >>> Date: Fri, 11 Nov 2011 09:16:18 -0500
> >>>
> >>> > Is the array "p" not present when you're coprocessnig? Try taking out
> >>> > line 323 which sets the array "p" as the array to color with.
> >>> >
> >>> > Utkarsh
> >>> >
> >>> > On Fri, Nov 11, 2011 at 9:08 AM, Takuya OSHIMA
> >>> > <oshima at eng.niigata-u.ac.jp> wrote:
> >>> > > Hi,
> >>> > >
> >>> > > I am trying to explore the coprocessing capability of PV 3.12.0.
> When
> >>> > > I create a pipeline with a single slice filter within the PV GUI,
> >>> > > export the Python state file by the coprocessing plugin and run the
> >>> > > script as the coprocessing pipleline in my simulation code, it
> works
> >>> > > fine.
> >>> > >
> >>> > > However if I create a pipeline with two or more filters my
> simulation
> >>> > > code issues an error from the coprocessing library (the error
> message
> >>> > > is for the case of two slice filters):
> >>> > >
> >>> > > Traceback (most recent call last):
> >>> > >  File "<string>", line 2, in <module>
> >>> > >  File "/Users/ohshima/shindoriTest/twoSlices.py", line 323, in
> >>> DoCoProcessing
> >>> > >    DataRepresentation2.ColorArrayName = 'p'
> >>> > >  File
> >>>
> "/Volumes/RAID0data/paraview/3.12/build/Utilities/VTKPythonWrapping/site-packages/paraview/servermanager.py",
> >>> line 212, in __setattr__
> >>> > >    setter(self, value)
> >>> > >  File
> >>>
> "/Volumes/RAID0data/paraview/3.12/build/Utilities/VTKPythonWrapping/site-packages/paraview/servermanager.py",
> >>> line 2276, in setProperty
> >>> > >    return self.SetPropertyWithName(propName, value)
> >>> > >  File
> >>>
> "/Volumes/RAID0data/paraview/3.12/build/Utilities/VTKPythonWrapping/site-packages/paraview/servermanager.py",
> >>> line 267, in SetPropertyWithName
> >>> > >    prop.SetData(arg)
> >>> > >  File
> >>>
> "/Volumes/RAID0data/paraview/3.12/build/Utilities/VTKPythonWrapping/site-packages/paraview/servermanager.py",
> >>> line 695, in SetData
> >>> > >    raise ValueError("Could not locate array %s in the input." %
> arr)
> >>> > > ValueError: Could not locate array p in the input.
> >>> > >
> >>> > > The problem is same for Mac OS X 10.6 and RHEL 5.1 64bit. I attach
> the
> >>> > > scripts oneSlice.py (which works) and twoSlices.py (which does not
> >>> > > work). Can anybody shed light on the problem?
> >>> > >
> >>> > > Takuya
> >>> > >
> >>> > > Takuya OSHIMA, Ph.D.
> >>> > > Faculty of Engineering, Niigata University
> >>> > > 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
> >>> > >
> >>> > > _______________________________________________
> >>> > > 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
> >>>
> >>
> >>
> >> _______________________________________________
> >> 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.paraview.org/pipermail/paraview/attachments/20111113/10b2e762/attachment.htm>