[Paraview] ParaView thinks that it does not have a wind blade reader

Wed Jul 11 12:53:03 EDT 2012

I was reluctant to enable the reader in serial (i.e. not using MPI IO which
I think is getting done by default with the parallel build) because of the
following warnings that I got:

Warning: In /home/acbauer/CODE/ParaView/
ParaView/VTK/IO/Parallel/vtkWindBladeReader.cxx, line 942
vtkWindBladeReader (0x3a0c800): WindBladeReader error reading file:
/home/acbauer/DATA/VTKLargeData/Data/WindBladeReader/test1_topo.wind
Premature EOF while reading block of data. Expected 896000 but got 0

I just assumed that it was getting bad results so I didn't check the serial
output with the parallel output. In either case the code should be changed
before enabling it in serial so that it reads the files correctly and
doesn't produce any warning messages.

Andy

On Wed, Jul 11, 2012 at 12:04 PM, Sohail Shafii <sohailshafii at yahoo.com>wrote:

> I'm not aware of any option to build/link against mpi-io.  This is just a
> standard build with mpi support that suffers from this issue.
>
> The ParaView website's builds also have the same bug.
>
>   ------------------------------
> *From:* "Woodring, Jonathan L" <woodring at lanl.gov>
> *To:* Sohail Shafii <sohailshafii at yahoo.com>; Andy Bauer <
> andy.bauer at kitware.com>; Sebastien Jourdain <
> sebastien.jourdain at kitware.com>
> *Cc:* "migichen at gmail.com" <migichen at gmail.com>; "paraview at paraview.org" <
> paraview at paraview.org>
> *Sent:* Tuesday, July 10, 2012 10:06 AM
>
> *Subject:* Re: [Paraview] ParaView thinks that it does not have a wind
> blade reader
>
>  I added the MPI calls to be in sync with what was being added in the
> simulation.
>
>  In the SuperComputing demo last year, we updated both the HiGrad FireTec
> to use MPI-IO and likewise ParaView to do the same thing.
>
>  It was working when I last checked it in November.  It could be that you
> didn't build or link against MPI-IO?  It might require that the build needs
> to be guarded if you don't have MPI-IO.
>
>  I thought I did that but it might have gotten changed during the VTK
> overhaul… That's the only thing that I can think of at the moment, because
> I'm pretty sure I had it working in serial with MPI-IO (it shouldn't
> matter.)
>
>   From: Sohail Shafii <sohailshafii at yahoo.com>
> Reply-To: Sohail Shafii <sohailshafii at yahoo.com>
> Date: Tue, 10 Jul 2012 08:44:01 -0700
> To: Andy Bauer <andy.bauer at kitware.com>, Sebastien Jourdain <
> sebastien.jourdain at kitware.com>
> Cc: "migichen at gmail.com" <migichen at gmail.com>, woodring <woodring at lanl.gov>,
> "paraview at paraview.org" <paraview at paraview.org>
> Subject: Re: [Paraview] ParaView thinks that it does not have a wind
> blade reader
>
>   I'm afraid my knowledge here is a bit limited.  All of my edits have
> been in relation to loading the blade data.  The MPI calls were put in by
> someone else.
>
>  By the way, is the wind blade reader updated in VTK as well? (i.e. the
> VTK package)  I remember downloading VTK a while ago and there was a
> mismatch between that windbladereader and the one in ParaView.
>
>  Sohail
>
>   ------------------------------
> *From:* Andy Bauer <andy.bauer at kitware.com>
> *To:* Sebastien Jourdain <sebastien.jourdain at kitware.com>
> *Cc:* Sohail Shafii <sohailshafii at yahoo.com>; "migichen at gmail.com" <
> migichen at gmail.com>; "woodring at lanl.gov" <woodring at lanl.gov>; "
> paraview at paraview.org" <paraview at paraview.org>
> *Sent:* Tuesday, July 3, 2012 11:54 AM
> *Subject:* Re: [Paraview] ParaView thinks that it does not have a wind
> blade reader
>
> Hi Sohail,
>
> I went through the code and it jogged my memory about previous problems
> with it. It had an explicit MPI call in the constructor that would cause
> problems when paraview wasn't getting built with MPI. Any time a user tried
> to open an unknown file it would try to create a windblade reader to see if
> the reader could handle the file and this would cause a crash. If you
> launch a separate pvserver the wind blade reader will be available in the
> gui.
>
> If someone fixes this problem in the reader we can enable it properly
> through the gui. Right now though I'm getting a bunch of warnings when
> running in serial like:
> Warning: In
> /home/acbauer/CODE/ParaView/ParaView/VTK/IO/Parallel/vtkWindBladeReader.cxx,
> line 942
> vtkWindBladeReader (0x3a0c800): WindBladeReader error reading file:
> /home/acbauer/DATA/VTKLargeData/Data/WindBladeReader/test1_topo.wind
> Premature EOF while reading block of data. Expected 896000 but got 0
>
>
> Andy
>
> On Tue, Jul 3, 2012 at 12:09 PM, Andy Bauer <andy.bauer at kitware.com>wrote:
>
> I get the same problem in both 3.14.1 and master. The reader is still
> available but just not conveniently through the GUI. To access it though
> you can bring up the python shell and do the following:
>  >>> w = WindBladereader()
>  >>> w.Filename = "<path>/test1_topo.wind"
>  >>> Show()
>   >>> Render()
>
>  This shouldn't be too hard of a fix for ParaView. I'll let you know when
> it's done.
>
> Andy
>
>
> On Mon, Jul 2, 2012 at 6:03 PM, Sebastien Jourdain <
> sebastien.jourdain at kitware.com> wrote:
>
> Hi Sohail,
>
> a similar bug was fixed in master not so long ago. Could you try
> master to see if the issue remains ?
>
> Thanks,
>
> Seb
>
> On Mon, Jul 2, 2012 at 5:36 PM, Sohail Shafii <sohailshafii at yahoo.com>
> wrote:
> > Hi,
> >
> > We are trying to open a .wind data set.  In the open file menu, ParaView
> > lists the .wind format as a possible option.  Once we click open,
> however,
> > it complains that a reader for that data format cannot be found.  This is
> > true for the compiled-from-source and pre-compiled versions of ParaView
> > 3.14.1. The wind blade source still exists in the VTK/Parallel folder
> and it
> > is referenced in the corresponding CMakeLists.txt file. Any thoughts?
> >
> > Thanks, Sohail
> >
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