<div dir="ltr"><div><div><div>Hi Jim,<br><br></div>I inlined some response below...<br><br></div>Best,<br></div>Andy<br><div><div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Apr 1, 2016 at 12:41 PM, <span dir="ltr"><<a href="mailto:Jim.Eliot@awe.co.uk" target="_blank">Jim.Eliot@awe.co.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-GB">
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<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Hi Andy,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Thank you for all the help that you have provided.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">I feel like I don’t quite understand how Catalyst handles the simulation data. If I use ParaView Catalyst for large parallel simulations,
and I try to fetch the entire dataset, does all the data in the problem get sent to the client on my workstation?</span></p></div></div></blockquote><div><br></div><div>The way it works now is that when you click on the icon next to a filter, it fetches that data set to whichever pvserver it's connected to, including the built-in server. So yes, in this case it would try to fetch all of the data to your client. We've done some work on generating images through Catalyst and then sending that image to the client. That was done with PyFR.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-GB"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">If I am running pvserver in parallel, would that be able to distribute the data between the processes? How do I tell Catalyst to connect
to the pvservers and the pvservers to connect to the client? I guess I can use –client-host and –server-port on the pvservers and point them to the paraview client but how do I make the Catalyst -> pvserver connection?</span></p></div></div></blockquote><div><br></div><div>Yes, that should attempt some form of partitioning when it's sent from the sim/Catalyst to the parallel pvserver. The way to do the connection in this case is to tell the Catalyst Python script to link to where pvserver is running ( coprocessor.DoLiveVisualization(datadescription, "localhost", 22222)). Then, run the simulation, pvserver and the GUI client, have the client connect to pvserver and then in the GUI go through the Catalyst->Connect... point to where the simulation is running. This should connect pvserver to the sim. If there's firewalls then it may be a bit more complex connection. I don't know to what level/size data this has been pushed to.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-GB"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Thank you for the information regarding AMR grids – it sounds like this approach will work for my application.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Kind regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Jim<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><a name="m_-7066899028070908757______replyseparator"></a><b><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">From:</span></b><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US"> Andy Bauer [mailto:<a href="mailto:andy.bauer@kitware.com" target="_blank">andy.bauer@kitware.com</a>]
<br>
<b>Sent:</b> 31 March 2016 20:18<br>
<b>To:</b> Eliot Jim AWE <<a href="mailto:Jim.Eliot@awe1.awe.co.uk" target="_blank">Jim.Eliot@awe1.awe.co.uk</a>><br>
<b>Cc:</b> <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> EXTERNAL: Re: EXTERNAL: Re: [Paraview] CxxOverlappingAMRExample with Catalyst Live<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-bottom:12pt">Hi Jim,<u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-bottom:12pt">Yes, you can have a Catalyst instrumented code connect to something running pvserver and have the pvserver connect to the client. At the end of the Python generated scripts there should be a line that looks
like:<br>
coprocessor.DoLiveVisualization(datadescription, "localhost", 22222)<u></u><u></u></p>
</div>
<p class="MsoNormal">Here you just have to edit it to point to something other than localhost.
<u></u><u></u></p>
<div>
<div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12pt">As for overlapping structured grids, there's no convenient composite/multiblock data set for that like there is for Cartesian grids. What you would need to do is use vtkStructuredGrids with blanking done manually
and then just add them in as blocks in a vtkMultiBlockDataSet. It won't have the structure that the AMR specific composite data sets have so it may be a bit slower for some filters but it should work pretty much like you want for most stuff. Please let us
know if you try this out and get unexpected/undesired behaviour.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">Best,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">Andy<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">On Thu, Mar 31, 2016 at 12:05 PM, <<a href="mailto:Jim.Eliot@awe.co.uk" target="_blank">Jim.Eliot@awe.co.uk</a>> wrote:<u></u><u></u></p>
<blockquote style="border-width:medium medium medium 1pt;border-style:none none none solid;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0cm 5pt 4.8pt">
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<div>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Hi Andy,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Thanks for your reply. Currently I am looking at the small examples but I would like to be able to
fetch larger geometries in future. Is it possible for the simulation to connect to a parallel pvserver which will send images back to the client?</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Putting interactive usage to one side for a moment, is non-uniform AMR supported in Catalyst batch?
I.e. overlapping structured grids . I couldn’t find any references to non-uniform AMR in ParaView while researching.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Kind regards,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Jim</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"> </span><u></u><u></u></p>
<p class="MsoNormal"><a name="m_-7066899028070908757_m_-936459429849215829______replyseparato"></a><b><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">From:</span></b><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">
Andy Bauer [mailto:</span><a href="mailto:andy.bauer@kitware.com" target="_blank"><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">andy.bauer@kitware.com</span></a><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">]
<br>
<b>Sent:</b> 31 March 2016 16:08<br>
<b>To:</b> Eliot Jim AWE <</span><a href="mailto:Jim.Eliot@awe1.awe.co.uk" target="_blank"><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">Jim.Eliot@awe1.awe.co.uk</span></a><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">><br>
<b>Cc:</b> </span><a href="mailto:paraview@paraview.org" target="_blank"><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US">paraview@paraview.org</span></a><span style="font-size:11pt;font-family:"Calibri",sans-serif" lang="EN-US"><br>
<b>Subject:</b> EXTERNAL: Re: [Paraview] CxxOverlappingAMRExample with Catalyst Live</span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal" style="margin-bottom:12pt">Hi Jim,<u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-bottom:12pt">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). <u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-bottom:12pt">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.<u></u><u></u></p>
</div>
<p class="MsoNormal">Cheers,<u></u><u></u></p>
</div>
<p class="MsoNormal">Andy<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
<div>
<p class="MsoNormal">On Thu, Mar 31, 2016 at 9:44 AM, <<a href="mailto:Jim.Eliot@awe.co.uk" target="_blank">Jim.Eliot@awe.co.uk</a>> wrote:<u></u><u></u></p>
<blockquote style="border-width:medium medium medium 1pt;border-style:none none none solid;padding:0cm 0cm 0cm 6pt;margin:5pt 0cm 5pt 4.8pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
<div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Good afternoon,<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">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:<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal"> Warning: In <src-dir>/VTK/Parallel/Core/vtkCommunicator.cxx, line 394<u></u><u></u></p>
<p class="MsoNormal"> vtkSocketCommunicator (…): Cannot receive vtkOverlappingAMR<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">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).<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">So I am wondering, are AMR meshes not supported by Catalyst Live? Do I have to handle AMR meshes differently when using Catalyst interactively?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Many thanks,<u></u><u></u></p>
<p class="MsoNormal">Jim<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">[1]
<a href="https://github.com/Kitware/ParaViewCatalystExampleCode" target="_blank">
https://github.com/Kitware/ParaViewCatalystExampleCode</a><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<b><span style="font-size:10pt;font-family:"Arial",sans-serif;color:rgb(0,116,123)">Jim Eliot</span></b><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<b><span style="font-size:10pt;font-family:"Arial",sans-serif;color:rgb(0,116,123)">High Performance Computing Group</span></b><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:10pt;font-family:"Arial",sans-serif;color:rgb(0,116,123)">AWE, Aldermaston, Reading, RG7 4PR
</span><u></u><u></u></p>
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