<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Chuck,<div class=""><br class=""></div><div class=""> Glad you figured it out. I wonder what that graphics scheduling option is doing.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Tom</div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jan 24, 2021, at 3:36 PM, Sindelar, Charles <<a href="mailto:charles.sindelar@yale.edu" class="">charles.sindelar@yale.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hey, I figured it out! There is some kind of new windows option called hardware-accelerated graphics scheduling, in the graphics settings->change default graphics settings control panel. I turned it off, and boom- ChimeraX started using the Nvidia. Thanks for the pointers- definitely helped me guess the solution. Maybe this will help someone else… cheers!<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(225, 225, 225); padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Tom Goddard <<a href="mailto:goddard@sonic.net" class="">goddard@sonic.net</a>><span class="Apple-converted-space"> </span><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Sunday, January 24, 2021 2:38 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Sindelar, Charles <<a href="mailto:charles.sindelar@yale.edu" class="">charles.sindelar@yale.edu</a>><br class=""><b class="">Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [chimerax-users] windows 10 GPU acceleration?<o:p class=""></o:p></div></div></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hi Chuck!<o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> Yes ChimeraX and Chimera should both be using your laptop Nvidia 2080 GPU and not the Intel graphics. Chimera(X) does not choose the GPU and does not even know that there is more than one -- nothing in the OpenGL graphics library gives that information. It is up to the Windows operating system to decide what GPU used, and it usually makes the right choice. There is in fact a flag in ChimeraX that tells Windows it should use the Nvidia GPU if available.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> You can see for certain which GPU is being used in Chimera with the command<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="apple-tab-span"> <span class="Apple-converted-space"> </span></span>graphics driver<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Here's what it reports in the log on my laptop<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">OpenGL version: 4.1 ATI-3.10.18<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">OpenGL renderer: AMD Radeon Pro Vega 20 OpenGL Engine<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">OpenGL vendor: ATI Technologies Inc.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Yours should either save Nvidia or Intel in the output. It may say Nvidia but your 2080 GPU use does not seem to get much use. The GPU will only be used when the graphics are changing -- for instance, use the command "roll" to set the models in motion (and command "stop" to halt them). Even when the graphics is constantly changing if your model is small and lighting mode is simple, it will probably show the GPU is hardly working. Use "full" or "soft" lighting to get ambient shadows and that should load the GPU some ("lighting full", or "lighting soft").<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> The high performance graphics mode you set in Windows should certainly make the Nvidia GPU get chosen. <o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> If ChimeraX "graphics driver" says the Intel GPU is being used then something is clearly messed up. But it must have something to do with your Windows and graphics driver configuration. In fact are you sure you have a working Niovida graphics driver installed? Are there any other apps you use where you see the Nvidia GPU in use?<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="apple-tab-span"> <span class="Apple-converted-space"> </span></span>Tom<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""><br class=""><o:p class=""></o:p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">On Jan 24, 2021, at 10:09 AM, Sindelar, Charles <<a href="mailto:charles.sindelar@yale.edu" style="color: blue; text-decoration: underline;" class="">charles.sindelar@yale.edu</a>> wrote:<o:p class=""></o:p></div></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Dear Tom, Elain, Eric et al, happy new year to you and I hope all is well.<o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I was wondering how much GPU acceleration I can hope for with my new Dell XPS 17, for either ChimeraX or Chimera? Right now I am noticing that when I use the programs, all the graphics load goes to my integrated Intel graphics GPU, and frame rates are not impressive. The Nvidia 2080, which should be awesome, sits idling. This is on Windows 10. I tried setting the Windows “Graphics Settings” control panel for “high performance”, which should try to make Chimera(X) use the NVidia, as far as I know, but nothing happens.<span class="apple-converted-space"> </span><o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thanks and cheers! - Chuck<o:p class=""></o:p></div></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: Helvetica, sans-serif;" class="">_______________________________________________<br class="">ChimeraX-users mailing list<br class=""></span><a href="mailto:ChimeraX-users@cgl.ucsf.edu" style="color: blue; text-decoration: underline;" class=""><span style="font-size: 9pt; font-family: Helvetica, sans-serif;" class="">ChimeraX-users@cgl.ucsf.edu</span></a><span style="font-size: 9pt; font-family: Helvetica, sans-serif;" class=""><br class="">Manage subscription:<br class=""></span><a href="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fplato.cgl.ucsf.edu%2Fmailman%2Flistinfo%2Fchimerax-users&data=04%7C01%7Ccharles.sindelar%40yale.edu%7Cd9009cfdd4f54eec887308d8c09f8f45%7Cdd8cbebb21394df8b4114e3e87abeb5c%7C0%7C0%7C637471138837946872%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2FSw2Is0xy9DsXZz4y1hyqvuS%2FyOPum8MKvtehJTWSjQ%3D&reserved=0" style="color: blue; text-decoration: underline;" class=""><span style="font-size: 9pt; font-family: Helvetica, sans-serif;" class="">https://www.rbvi.ucsf.edu/mailman/listinfo/chimerax-users</span></a></div></div></blockquote></div></div></div></div></blockquote></div><br class=""></div></body></html>