<div dir="ltr">Hi Tom, Greg:<div><br></div><div>Thanks for replying.</div><div><br></div><div>I am pretty sure I do have proprietary driver installed.</div><div><br></div><div>I checked in the report a bug dialog and got:</div><div><br></div><div><div>OpenGL Vendor: NVIDIA Corporation</div><div>OpenGL Renderer: GeForce GTX 560 Ti/PCIe/SSE2</div><div>OpenGL Version: 4.2.0 NVIDIA 304.116</div></div><div><br></div><div>However, I was checking if there was anything else that would affect performance, and it looks like my version of chimera has silhouettes and depth cueing on by default. When I turned both those effects off I saw some pretty big improvements in benchmark and real-life performance:</div><div><br></div><div>Old molecule benchmarks:</div><div>6249.5<span class="Apple-tab-span" style="white-space:pre"> </span>158.7<span class="Apple-tab-span" style="white-space:pre"> </span>1.5<span class="Apple-tab-span" style="white-space:pre"> </span>0.9<span class="Apple-tab-span" style="white-space:pre"> </span>27.4<span class="Apple-tab-span" style="white-space:pre"> </span>0.4<span class="Apple-tab-span" style="white-space:pre"> </span>89.3<br></div><div><br></div><div>New molecule benchmarks:</div><div>369581.3<span class="Apple-tab-span" style="white-space:pre"> </span>164.7<span class="Apple-tab-span" style="white-space:pre"> </span>201.1<span class="Apple-tab-span" style="white-space:pre"> </span>130.3<span class="Apple-tab-span" style="white-space:pre"> </span>2145.8<span class="Apple-tab-span" style="white-space:pre"> </span>51.3<span class="Apple-tab-span" style="white-space:pre"> </span>103.3<br></div><div><br></div><div>Which I guess explains the performance differences, unless the benchmarks on the website were with both of those effects on as well. Are there perhaps any other effects I could be on the lookout for that would also drain performance when dealing with millions of atoms?</div><div><br></div><div>Cheers,</div><div>Dan</div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Aug 13, 2015 at 4:59 PM Tom Goddard <<a href="mailto:goddard@sonic.net">goddard@sonic.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">You probably don’t have the Nvidia graphics driver installed, so you are getting slow Mesa rendering. To check this use Chimera menu Help / Report a Bug… and look in the “Gathered Information” box where it will identify the OpenGL renderer. For instance on my Mac it says:<br>
<br>
OpenGL Vendor: NVIDIA Corporation<br>
OpenGL Renderer: NVIDIA GeForce GTX 680MX OpenGL Engine<br>
OpenGL Version: 2.1 NVIDIA-10.4.2 310.41.35f01<br>
<br>
Tom<br>
<br>
<br>
> On Aug 12, 2015, at 11:53 PM, Dan Lin wrote:<br>
><br>
> Hello:<br>
><br>
> I was wondering if anyone had any experience tracking down performance problems in chimera.<br>
><br>
> I've noticed that I am getting really sluggish performance when managing a lot of atoms, even when everything is shown as backbone traces only.<br>
><br>
> To take a look at the performance, I ran the benchmark and got the following numbers:<br>
><br>
> Volume benchmark scores<br>
> surface mesh contour solid recolor<br>
> 981 1291 280 589 393<br>
><br>
> Null Wire Stick BStick Ribbon Sphere Ops<br>
> 6249.5 158.7 1.5 0.9 27.4 0.4 89.3<br>
><br>
><br>
> compared to a benchmark posted on the website of the same graphics card:<br>
><br>
> 2125 2026 302 512 491<br>
><br>
> 213 492 452 3259 169 128<br>
><br>
> Apparently I'm getting awful benchmarks for most of the molecule benchmarks, while the volume performance is pretty comparable. I re-ran the molecule benchmarks to make sure they were reproducible and got pretty much the same numbers.<br>
><br>
> Would anybody have any suggestions for figuring out what's going on?<br>
><br>
> For reference, I'm running ubuntu 12.04 with up to date nvidia drivers for a GTX 560 Ti.<br>
><br>
> Thanks,<br>
> Dan<br>
><br>
><br>
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