Dear Utkarsh,
thanks for trying to look into it.
These are some datasets distributed with VisIt to test the Pixie output
blockedhttp://portal.nersc.gov/svn/visit/trunk/data/pixie_test_data.tar.gz
As you will notice Paraview 3.14 or newer can not open the file
pixie_expressions.h5,
while it correctly opens all other files (pixie3d3.h5, ...), where
the only difference
between the files is the number of timesteps contained in each of them.
The following files are written by the code that we develop
(http://plutocode.ph.unito.it/):
blockedhttps://dl.dropbox.com/u/18683007/data.2tstep.h5
blockedhttps://dl.dropbox.com/u/18683007/data.1tstep.h5
Paraview 3.14 or newer can open data.2tstep.h5 but hangs when
trying to open data.1tstep.h5.
These files contain 2 and 1 timesteps respectively, but their
structure is exactly the same
(groups, attributes, datasets, etc etc ...)
Previous versions of Paraview (down to 3.10) and VisIt (up to the
current release 2.5.2) can
correctly open all the files. Therefore I suspect that the problem
is somewhere in the bridge
from VisIt to Paraview of the two most recent releases.
I have always used the pre-compiled binaries for Mac OS X 64-bit Intel.
Thanks again,
Claudio
On 11/12/12 12:13 AM, Utkarsh Ayachit wrote:
Claudio,
Do you have any sample dataset that I can use to test this/the fix?
Thanks,
Utkarsh
On Sun, Nov 11, 2012 at 4:07 PM, Utkarsh Ayachit
<[email protected] <mailto:[email protected]>> wrote:
Claudio,
I'll take a look at get back.
Utkarsh
On Fri, Nov 9, 2012 at 9:54 AM, Claudio Zanni <[email protected]
<mailto:[email protected]>> wrote:
I already had this problem with Paraview 3.14.1 but I received
no answer to a first email,
so I tried to investigate on my own since the problem is still
present in release 3.98.0.
Paraview can not open a Pixie file (it's a HDF5 format
included through the VisIt Database
Bridge) when the file includes one timestep only: Paraview
just hangs indefinitely.
Everything works fine when multiple timesteps are contained in
the file.
I suspect that the problem is connected to lines 618-634 in
Utilities/VisItBridge/AvtAlgorithms/vtkAvtFileFormatAlgorithm.cxx:
//in some case the times and cycles have all zero values.
//This is caused by a file reader that generates the
time value
//once the reader moves to that timestep.
//That kind of behaviour is not possible currently in
ParaView. Instead
//we will force the reader to generate the time values
for each timestep
//by cycling through everytime step but not requesting
any data.
if(hasTime && timesteps[0] == timesteps[timesteps.size()-1])
{
//we have hit a timestep range that needs to be cycled
for(int i=0; i < timesteps.size();++i)
{
this->ActivateTimestep(i);
//Nek and other readers don't update the time info
intill you
//call gettimes.
this->AvtFile->FormatGetTimes(timesteps);
}
}
The condition is true not only when the same value (0?) has
been assigned to all
the timesteps but also when there is one timestep only
(timesteps.size() = 1).
Besides these lines were not present in Paraview 3.10/3.12 and
these releases
were able to open Pixie files containing one timestep only.
Is it possible to fix this problem? That would be highly
appreciated.
Regards,
Claudio
--
Claudio Zanni
INAF - Osservatorio Astronomico di Torino
Via Osservatorio 20
10025 Pino Torinese (TO), Italy
tel. +39 011 8101907 <tel:%2B39%20011%208101907>
fax +39 011 8101930 <tel:%2B39%20011%208101930>
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Claudio Zanni
INAF - Osservatorio Astronomico di Torino
Via Osservatorio 20
10025 Pino Torinese (TO), Italy
tel. +39 011 8101907
fax +39 011 8101930
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