[Paraview] CxxOverlappingAMRExample with Catalyst Live

[Andy Bauer]

Hi Jim,

Yes, currently Overlapping AMR data sets are not supported by Catalyst
Live. This is because VTK doesn't support sending that data object. That
would have to be changed in vtkCommunicator::Send(vtkDataObject* data, int
remoteHandle, int tag).

A workaround would be to use a Threshold filter to convert to a multiblock
of unstructured grids, use the merge blocks filter and then extract this
output to the client. You'll get some warnings about the data set not being
a polydata (think about running a large simulation and trying to transfer
all of that to a separate server or client). I'm assuming since you're
trying to fetch the entire data set that the use case isn't for an overly
large data set.

Cheers,
Andy

On Thu, Mar 31, 2016 at 9:44 AM, <Jim.Eliot at awe.co.uk> wrote:

>
>
> Good afternoon,
>
>
>
> I have been trying to use Catalyst Live with the CxxOverlappingAMRExample
> from the ParaView Catalyst Example Code repository [1] but I see an error
> when I try to visualise the data from a ParaView client. The client
> connects to the simulation successfully and PVTrivialProducer1 appears in
> the Pipeline Browser. The Information tab shows it as an Overlapping AMR
> Dataset with 3 levels. However, when I click on the PVTrivialProducer1
> icon, ParaView prints an error then segfaults. The error is something like:
>
>
>
>     Warning: In <src-dir>/VTK/Parallel/Core/vtkCommunicator.cxx, line 394
>
>     vtkSocketCommunicator (…): Cannot receive vtkOverlappingAMR
>
>
>
> I have tried this with both ParaView 4.4.0 and 5.0.0 with the same
> results. The example works fine when I am using non-Live Catalyst (i.e. it
> writes out a bunch of vtm files that I can read into ParaView).
>
>
>
> So I am wondering, are AMR meshes not supported by Catalyst Live? Do I
> have to handle AMR meshes differently when using Catalyst interactively?
>
>
>
> Many thanks,
>
> Jim
>
>
>
> [1] https://github.com/Kitware/ParaViewCatalystExampleCode
>
>
>
> *Jim Eliot*
>
> *High Performance Computing Group*
>
> AWE, Aldermaston, Reading, RG7 4PR
>
>
>
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