<div dir="ltr">I suspect the cards are not running in sync, to get useful info out of the timing of viewer->frame() (in singlethreaded mode) you will have to add a glFinish() call. Only if you force the driver to block until the swapbuffers is actually done the timing info has meaning.<div>Laurens.</div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Oct 4, 2018 at 10:11 PM David Heitbrink <<a href="mailto:david-heitbrink@uiowa.edu">david-heitbrink@uiowa.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I am not running it in Quadro mosaic mode. I do have a slightly older version of the program running on a render cluster with 5 2-gpu nodes driving 16 displays that runs fine on windows 7.<br>
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I am starting to suspect it has something to do with the Windows - Desktop Window Manager (DWM) composition. This can no longer be disabled in windows 10.<br>
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