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<p class="MsoNormal">OK, this … sort of … worked. I was able to use the Kitware download (Yay!). I called pvbatch (surprisingly, it was built by Kitware for Linux), and then used flags --mesa-llvm and --use-offscreen-rendering. I believe --use-offscreen-rendering
will be replaced in the future by --force-offscreen-rendering in PV 5.5.0.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks Cory, and everyone else that chimed in.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Alan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Cory Quammen <cory.quammen@kitware.com><br>
<b>Date: </b>Wednesday, November 15, 2017 at 10:46 AM<br>
<b>To: </b>W Scott <wascott@sandia.gov><br>
<b>Cc: </b>Ben Boeckel <ben.boeckel@kitware.com>, "paraview@paraview.org" <paraview@paraview.org><br>
<b>Subject: </b>Re: [Paraview] [EXTERNAL] Re: pvbatch<o:p></o:p></span></p>
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<p class="MsoNormal">Alan, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">You should be able to run<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">pvpython --force-offscreen-rendering script.py<o:p></o:p></p>
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<p class="MsoNormal">and no render window will appear. The help for --force-offscreen-rendering says:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> "If supported by the build and platform, create headless (offscreen) render windows for rendering results."<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I believe this should work on linux systems, but you should try it out on the system on which you want to force offscreen rendering just to be sure before using it to produce classified images.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">pvbatch running the same script will indeed not pop up a render window even without the --force-offscreen-rendering option.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Let us know how it goes,<o:p></o:p></p>
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<p class="MsoNormal">Cory<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Nov 13, 2017 at 5:04 PM, Scott, W Alan <<a href="mailto:wascott@sandia.gov" target="_blank">wascott@sandia.gov</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Ben,<br>
I believe this is a change from the past. Here is what I desire – how do I get it?<br>
<br>
I want to run pv(pythonScript). I want it to produce output. I want it to run off screen, not showing on the console display or current display. This is especially important on classified systems. MPI is not available.<br>
<br>
Not too long ago, my understanding was this was pvbatch. pvpython used either the console display or current display as it’s rendering space. This does not catch my needs.<br>
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<span class="hoenzb">Alan</span></span><o:p></o:p></p>
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On 11/13/17, 9:04 AM, "Ben Boeckel" <<a href="mailto:ben.boeckel@kitware.com">ben.boeckel@kitware.com</a>> wrote:<br>
<br>
On Sun, Nov 12, 2017 at 22:42:29 +0000, Scott, W Alan wrote:<br>
> What are the magic cmake switches, for superbuild, that are used to<br>
> build a non MPI, Mesa version of pvbatch? Where is this documented?<br>
<br>
pvpython is the non-MPI version of pvbatch. The superbuild docs could<br>
probably be improved here. Currently, the mention is:<br>
<br>
ParaView supports multiple rendering engines including `egl`,<br>
`mesa`, `osmesa`, and `qt5`. All of these are incompatible with each<br>
other. If none of these are chosen, a UI-less ParaView will be built<br>
(basically just `pvpython`). On Windows and macOS, only the `qt5`<br>
rendering engine is available.<br>
<br>
--Ben<br>
<br>
<br>
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<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Cory Quammen<br>
Staff R&D Engineer<br>
Kitware, Inc.<o:p></o:p></p>
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