[Paraview] Error when reading multiple spatially decomposed Exodus files

[Cory Quammen]

Louis,

I can confirm the same error message you are seeing. A quick look in
the debugger at the source of the error message wasn't sufficient to
figure out what might be going on I'm afraid.

Cory

On Fri, May 26, 2017 at 10:47 AM, Steytler, Louis Louw
<steytle1 at illinois.edu> wrote:
> Cory,
>
> If you would like to have a look, the small dataset I attached is producing the error.
>
> Thanks again,
>
> Louis Steytler
> Department of Mechanical Science and Engineering
> University of Illinois at Urbana-Champaign
> 1206 West Green Street
> Urbana, Il 61801
> steytle1 at illinois.edu
> ________________________________________
> From: Cory Quammen [cory.quammen at kitware.com]
> Sent: 26 May 2017 09:40 AM
> To: Steytler, Louis Louw; ParaView
> Subject: Re: [Paraview] Error when reading multiple spatially decomposed Exodus files
>
> Louis,
>
> [adding list back in]
>
> I'm afraid I am not an expert in the Exodus file format nor in how
> ParaView reads it. However, if you have a set of files you can share
> (with just me if necessary), I can take a quick look and see if
> anything jumps out at me.
>
> Thanks,
> Cory
>
> On Fri, May 26, 2017 at 10:31 AM, Steytler, Louis Louw
> <steytle1 at illinois.edu> wrote:
>> Cory,
>>
>> I think the problem with reading the multiple Exodus files is related to the information provided by the first file in the series of decomposed files.
>>
>> According to http://www.paraview.org/Wiki/ParaView/ParaView_Readers_and_Parallel_Data_Distribution,
>>
>> "The root node scans the directory for files in the set and reads metadata (blocks and variables defined on them) from a single file in the set. It then broadcasts this information to all processes. Each reads a different subset of files. "
>>
>> Something like this seems to be happening when reading in serial as well. It seems ParaView reads in this information and applies that when reading all the other pieces.
>>
>> Even though I have multiple Exodus blocks in my mesh, only one block appears in the ParaView Pipeline Browser. (My code only writes information relevant to a specific piece to that piece's data file.)
>>
>> Could you tell me what information should be provided in the first file in the series of files and is there any documentation I could look at to check that the code that I am using is writing the Exodus files in the correct format for ParaView to read it?
>>
>> Any advice would be much appreciated.
>>
>> Thanks very much,
>>
>> Louis Steytler
>> Department of Mechanical Science and Engineering
>> University of Illinois at Urbana-Champaign
>> 1206 West Green Street
>> Urbana, Il 61801
>> steytle1 at illinois.edu
>> ________________________________________
>> From: Cory Quammen [cory.quammen at kitware.com]
>> Sent: 25 May 2017 03:01 PM
>> To: Steytler, Louis Louw
>> Cc: paraview at paraview.org
>> Subject: Re: [Paraview] Error when reading multiple spatially decomposed Exodus files
>>
>> Hi Louis,
>>
>> It looks like you are using ParaView 4.1, which is fairly old at this
>> point. Could you try a more recent version such as 5.3 or 5.2 and see
>> if the problem persists?
>>
>> Thanks, and best regards,
>> Cory
>>
>> On Thu, May 25, 2017 at 3:20 PM, Steytler, Louis Louw
>> <steytle1 at illinois.edu> wrote:
>>> Hello,
>>>
>>> I am trying to read a set of spatially decomposed Exodus files as described
>>> here:
>>> http://www.paraview.org/Wiki/ParaView/ParaView_Readers_and_Parallel_Data_Distribution
>>>
>>> The ParaView client is being run on my laptop and the server on a remote
>>> visualization cluster. I am connecting to the server via a client-server
>>> connection.
>>>
>>> When I do so I get the error:
>>>
>>> ERROR: In
>>> /projects/pvdev/common/pv-source/v4.1.0_test/VTK/Common/DataModel/vtkDataObjectTree.cxx,
>>> line 377
>>> vtkMultiBlockDataSet (0x7d96490): Structure does not match. You must use
>>> CopyStructure before calling this method.
>>>
>>> multiple times. I running pvserver on one and many processes, each time
>>> getting the same error.
>>>
>>> Any advice would be much appreciated.
>>>
>>> Thanks very much,
>>>
>>> Louis
>>>
>>> Louis Steytler
>>> Department of Mechanical Science and Engineering
>>> University of Illinois at Urbana-Champaign
>>> 1206 West Green Street
>>> Urbana, Il 61801
>>> steytle1 at illinois.edu
>>>
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>>
>>
>>
>> --
>> Cory Quammen
>> Staff R&D Engineer
>> Kitware, Inc.
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.