Hi Andy,
Thanks for the reply! The data is a vtkMultiBlockDataSet with structured grids.
I forgot about the grid writing debugging technique, I found the issue.
It turns out that all of my runs/testing in the past 4 years I've had
coprocessing had only 1 block per processor and this simulation we were trying
had multiple blocks per processor. Buried deep in my interface adapter code
where I set the pointers for the grid arrays, I was pointing to the first
pointer in the array of pointers instead of incrementing through the array for
each block. So all the blocks besides the first on the processor were using the
wrong coordinates and it just so happened that meant we didn't have any grid
points where the slice was. So changing my ptr = x[0] to ptr = x[i] was all it
took... kind of embarrassing.
At any rate, one of the things I tried to do while debugging was to write out
the grid using Xdmf instead of VTK. But that didn't work. I had:
writer = coprocessor.CreateWriter( XdmfWriter, "filename_%t.xmf", 1 )
and I got:
...
File "/data4/pv4.4Build/lib/site-packages/paraview/coprocessing.py", line 319,
in WriterParametersProxy
proxy.GetProperty("Input").SetInputConnection(
AttributeError: 'NoneType' object has no attribute 'GetProperty'
ERROR: In
/data3/ParaView/ParaViewCore/ServerImplementation/Core/vtkSIProxyDefinitionManager.cxx,
line 565
vtkSIProxyDefinitionManager (0x3854340): No proxy that matches:
group=insitu_writer_parameters and proxy=XdmfWriter were found.
Is it possible to write out a multiblock dataset from coprocessing using XDMF?
Thanks again,
Tim
----- Original Message -----
From: "Andy Bauer" <[email protected]>
To: "tim gallagher" <[email protected]>
Cc: "paraview" <[email protected]>
Sent: Saturday, January 30, 2016 7:46:01 AM
Subject: Re: [Paraview] Slice not appearing while coprocessing
Hi Tim,
Everything seems to be correct. Maybe on the "input" name/identifier isn't
matching? This is an unstructured grid output, correct?
Maybe try writing out the full grid to see if Catalyst is getting the proper
input information.
Cheers,
Andy
On Fri, Jan 29, 2016 at 4:18 PM, Tim Gallagher < [email protected] >
wrote:
Hi everybody,
I was working with a colleague to get his simulation running with coprocessing
and I am totally stumped on the problem. I have been able to set up and render
some very complex things with our code, but for some reason this simulation
just won't work as expected.
We generated the coprocessing script with version 4.3 and we are running it on
a cluster with the same version, using off-screen rendering. I have attached
the script, it really just takes a slice through the center of the domain.
It is producing images of the colorbar and nothing else. I tried to save the
slice data to an xdmf file from the coprocessing script and it all reports
dimensions of zero. So the slice doesn't seem to be actually doing anything.
We took the exact lines from the Pipeline class and moved them to their own
python file. We then removed the coprocessor.RegisterView and changed the
coprocessor.CreateProducer line so it loads a datafile off disk instead. We
then ran it through the python shell in the paraview GUI and we get exactly the
slice we expected to get.
So, for some reason, this renders fine in the GUI but outputs the background
with just the colorbar when we are using coprocessing.
Any ideas or glaring problems in the coprocessing script that we are missing?
Thanks,
Tim
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