<div dir="ltr"><div><div><div><div>Hi Jim,<br><br></div>I think at this point the best option is to build Catalyst with OSMesa. <br><br></div>Cheers,<br></div>Andy<br><br></div>ps. I cc'ed the mailing list in case someone else has a better answer than mine.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 25, 2015 at 12:28 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:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Hi Andy,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Thank you for your reply.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">I seem to get the same behaviour with pvbatch. When I run in parallel using pvbatch like so:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> mpirun -np 4 pvbatch ./myscript.py<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Four windows are created. The outputted image file from the script is incomplete.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">If I use the --use-offscreen-rendering option like so:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> mpirun -np 4 pvbatch --use-offscreen-rendering ./myscript.py<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">no windows appear and the final image looks correct.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Should I build ParaView with osmesa for use with my Catalyst simulations?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Kind regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Jim<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><a name="1513fb0291267dfc______replyseparator"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" lang="EN-US">From:</span></b><span style="font-size:11.0pt;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>]
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<b>Sent:</b> 25 November 2015 15:30<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: [Paraview] Rendering offscreen images from parallel simulation using Catalyst<u></u><u></u></span></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Jim,<u></u><u></u></p>
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<p class="MsoNormal">You can use OSMesa if you want offscreen rendering to work. There has been some work with EGL with NVIDIA but I haven't tried that yet myself since I don't have the EGL libraries on my machine. Intel's OpenSWR may also be an option but
I haven't tried that either.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I think this issue though is independent of Catalyst. Can you try creating a Python script that outputs an image and try running that in parallel with pvbatch? Let me know if you get the same behaviour or not.<u></u><u></u></p>
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<p class="MsoNormal">Cheers,<u></u><u></u></p>
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<p class="MsoNormal">Andy<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Tue, Nov 24, 2015 at 6:04 AM, <<a href="mailto:Jim.Eliot@awe.co.uk" target="_blank">Jim.Eliot@awe.co.uk</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Good morning all,<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">I have experienced some problems when trying to render images in parallel from a multipiece dataset using ParaView Catalyst. It seems to work when I connect live using the ParaView
client – I see the full mesh, and a plot of vtkCompositeIndex looks sensible.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">However when I try to render out images, one render window appears on screen for each parallel process (in a stack). The windows appear to contain one chunk each. If I manually
grab the windows and spread them out so that each is visible on screen, then chunk zero plots updates to include the whole dataset, i.e. it looks as if it is grabbing the data from the screen.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Is there a way to make ParaView Catalyst render offscreen?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">I am using ParaView 4.4.0 on my workstation (which has a graphics card) built from source using Superbuild without mesa.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">When I run on a remote platform (no graphics cards) where I build ParaView using osmesa, the images render without creating a window and contain all the chunks.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Should I be using a separate ParaView build for my Catalyst simulations that is built with osmesa?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Apologies if there is not much to go on here – it would be tricky to share the simulation code and the catalyst adaptor code that I am using. If more information is needed, I’ll
try to put together a representative simulation/adaptor.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thanks everyone,<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"> <u></u><u></u></p>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#00747b">Jim Eliot</span></b><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#00747b">High Performance Computing Group</span></b><u></u><u></u></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#00747b">AWE, Aldermaston, Reading, RG7 4PR
</span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
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