[Paraview] Parallel Python Programmable Filter Requesting Additional Ghost Data

[Berk Geveci]

Actually, I think that I noticed this too. It may be a bug specific to the
programmable filter. I will check it out. By the way, what do you mean by
"raw" vti? Appended raw mode?

-berk

On Tue, Jul 17, 2012 at 12:22 PM, Jesus Pulido <jpulido at ucdavis.edu> wrote:

> Thank you Berk.
>
> I was under the impression that this command would trigger the reader to
> automatically load in the additional # of requested ghost levels. I tested
> the command and each data piece still has the same extents as before.
>
> Is there any additional way to load in ghost level that's parallel
> friendly? I am aware of the D3 filter but, from the memory usage, it seems
> that it will load in the entire dataset into each processor and this is not
> feasible for large datasets.
>
> I am using binary, "raw" vti piece files each with their own extent of the
> data and a header pvti file.
> The data has no encoded ghost layers between pieces so I was hoping to
> have paraview do that for me.
>
> Jesus
>
>
> On Tue, Jul 17, 2012 at 7:29 AM, Berk Geveci <berk.geveci at kitware.com>wrote:
>
>> self.GetExecutive().GetOutputInformation(0).Set(vtk.vtkStreamingDemandDrivenPipeline.UPDATE_NUMBER_OF_GHOST_LEVELS(),
>> 1)
>>
>>
>> in RequestUpdateExtent script. Of course, this requires that the reader
>> or a filter before the programmable filter is able to provide ghost levels.
>>
>>
>> -berk
>>
>>  On Wed, Jul 11, 2012 at 3:04 PM, Jesus Pulido <jpulido at ucdavis.edu>wrote:
>>
>>>  Hello,
>>>
>>> I am trying to request ghost data in my python programmable filter but I
>>> am not sure how to go about and do so. I am assuming the call would go into
>>> the RequestUpdateExtent Script.
>>>
>>> In the C++ equivalent filters that do request ghost data, the call to is
>>> something along the lines of
>>> vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_GHOST_LEVELS() , and
>>> there are examples of that in the Paraview source but the way the objects
>>> are defined and called does not translate into Paraview VTK Python. What
>>> would be the appropriate call?
>>>
>>> Thank you,
>>> Jesus
>>>
>>>
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