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<p class="MsoNormal">Dear All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have been struggling to make the Stream Tracer with Custom Source (STCS) work in parallel. It works in serial mode without any issues but in parallel I am hitting a wall of obstacles. I made a little test with the disk_out_ref.ex2 in
serial and parallel by and this is what I found. I am using Paraview v5.0.0 compiled from source with system libs linked against openmpi 1.7.1. I also briefly checked with other mpi flavours and under Windows with the MPI enabled binaries from paraview.org,
but the problems did not disappear.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Serial mode:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">1)<o:p></o:p></p>
<p class="MsoNormal">Load file (just with the “V” variable)<o:p></o:p></p>
<p class="MsoNormal">Slice with Z=5<o:p></o:p></p>
<p class="MsoNormal">Stream Tracer with Custom Source (STCS)<o:p></o:p></p>
<p class="MsoNormal">Success<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">Slice with Z=5<o:p></o:p></p>
<p class="MsoNormal">Mask points (10 points with random sampling)<o:p></o:p></p>
<p class="MsoNormal">STCS<o:p></o:p></p>
<p class="MsoNormal">Success<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">3)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">Select some points with Select Points Through<o:p></o:p></p>
<p class="MsoNormal">Extract Selection<o:p></o:p></p>
<p class="MsoNormal">STCS<o:p></o:p></p>
<p class="MsoNormal">Success<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Everything worked without issues. Now the same in parallel on 6 processes. Here is a little word of warning, the Exodus reader reads all the data onto just one process, so unless the D3 filter is used everything works in more or less serial
mode.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">1)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">D3<o:p></o:p></p>
<p class="MsoNormal">Slice with Z=5<o:p></o:p></p>
<p class="MsoNormal">STCS<o:p></o:p></p>
<p class="MsoNormal">Crash <o:p></o:p></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt">Generic Warning: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Parallel/MPI/vtkMPICommunicator.cxx, line 72<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI had an error<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI_ERR_IN_STATUS: error code in status<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">--------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI_ABORT was invoked on rank 5 in communicator MPI_COMM_WORLD
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">with errorcode 18.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">You may or may not see output from other processes, depending on<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">exactly when Open MPI kills them.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">--------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal">2)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">D3<o:p></o:p></p>
<p class="MsoNormal">Slice with Z=5<o:p></o:p></p>
<p class="MsoNormal">Mask points (10 points, random sampling & proportional distribution)<o:p></o:p></p>
<p class="MsoNormal">Paraview hangs:<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt">“<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">ERROR: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Filters/Core/vtkMaskPoints.cxx, line 325<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">vtkPMaskPoints (0x31c8480): No points to mask<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">ERROR: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Filters/Core/vtkMaskPoints.cxx, line 325<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">vtkPMaskPoints (0x4b0dea0): No points to mask<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">“<o:p></o:p></span></p>
<p class="MsoNormal">If you do not switch proportional distribution then Paraview spits an error “No points to mask” but you doesn’t crash or freeze. Generating STCS from the masked points will crash Paraview though.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">3)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">D3<o:p></o:p></p>
<p class="MsoNormal">Slice with Z=5<o:p></o:p></p>
<p class="MsoNormal">D3 the slice<o:p></o:p></p>
<p class="MsoNormal">Mask points (10 points)<o:p></o:p></p>
<p class="MsoNormal">D3 the points<o:p></o:p></p>
<p class="MsoNormal">STCS<o:p></o:p></p>
<p class="MsoNormal">Crash<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt">“<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">Generic Warning: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Parallel/MPI/vtkMPICommunicator.cxx, line 72<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI had an error<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI_ERR_TRUNCATE: message truncated<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">--------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">with errorcode 15.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">You may or may not see output from other processes, depending on<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">exactly when Open MPI kills them.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt">”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal">4)<o:p></o:p></p>
<p class="MsoNormal">Load file<o:p></o:p></p>
<p class="MsoNormal">D3<o:p></o:p></p>
<p class="MsoNormal">Select some points with Select Points Through<o:p></o:p></p>
<p class="MsoNormal">Extract Selection<o:p></o:p></p>
<p class="MsoNormal">STCS<o:p></o:p></p>
<p class="MsoNormal">Crash<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal">I also tried with more combinations with and without the D3 filter on the subsequent filters and on my industrial geometries but I could never make the Stream Tracer with Custom Source work in parallel. I found a related bug report
<a href="http://www.paraview.org/Bug/view.php?id=15342">http://www.paraview.org/Bug/view.php?id=15342</a> and an old post
<a href="https://cmake.org/pipermail/paraview/2009-December/014909.html">https://cmake.org/pipermail/paraview/2009-December/014909.html</a> but no solutions to this problem. Interestingly the common Stream Tracer filter works in parallel with both point and
high resolution line sources. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would be grateful if you could try to first reproduce this behavior and confirm that this is not specific to my installation. If anyone had an idea how to fix that I would be more than happy.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Lukasz <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><img border="0" width="189" height="53" id="Image_x0020_2" src="cid:image001.png@01D180F4.194828B0" alt="Beschreibung: Beschreibung: Description : cid:image001.png@01CF0B8F.DB7831F0"></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<b>£ukasz Paluszek</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Airbus Helicopters</span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Aerodynamics Department (ETGA)</span><span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span lang="FR" style="font-size:10.0pt;font-family:"Arial","sans-serif"">86607 Donauwörth</span><b><span lang="FR" style="font-size:9.0pt;font-family:"Arial","sans-serif""><o:p></o:p></span></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span lang="FR" style="font-size:10.0pt;font-family:"Arial","sans-serif"">Germany</span><span lang="FR" style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Tel.: +49 (90) 671 8231<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Fax.: +49 (90) </span>
671 9122<span style="font-family:"Arial","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><a href="mailto:Lukasz.Paluszek@airbus.com"><span style="color:blue">Lukasz.Paluszek@airbus.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p>AIRBUS HELICOPTERS DEUTSCHLAND GmbH</p>
<p>Sitz der Gesellschaft / Registered Office: Donauwörth</p>
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