<div dir="ltr"><div>Hey everyone,</div><div><br></div>Dan, do you mind re-testing with the latest git? Committed some tweak for your GPU now.</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 11, 2016 at 2:12 AM, Wolfgang Fähnle <span dir="ltr"><<a href="mailto:wfaehnle@freenet.de" target="_blank">wfaehnle@freenet.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, check several files, the usual suspects!<br>
All scenes need slightly less memory with experimental kernel.<br>
Some render times:<br>
<br>
Classroom:<br>
Supported = 01:10.30<br>
Experimental = 01:19.00<br>
<br>
Fishy_cat:<br>
Supported = 01:01.77<br>
Experimental = 01:06.04<br>
<br>
Sponza:<br>
Supported = 00:25.47<br>
Experimental = 00:27.54<br>
<br>
<br>
Opensuse 13.2/64<br>
Intel i5 3770K<br>
GTX 760 4 GB /Display card<br>
GTX 670 2 GB<br>
Driver 355.11<br>
Blender 82049cb<br>
<br>
Cheers, mib<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
<br>
<br>
<br>
<br>
Am 10.01.2016, 20:41 Uhr, schrieb Thomas Dinges <<a href="mailto:blender@dingto.org">blender@dingto.org</a>>:<br>
<br>
> Hi everyone,<br>
><br>
> For Blender 2.72 we added the CUDA Experimental kernel, to have SSS<br>
> working on the GPU.<br>
> The reason we added an extra kernel was mainly an increased memory usage<br>
> during render.<br>
><br>
> Good news is, this extra memory usage has been fixed by Sergey. I ran<br>
> some tests and rendering several scenes with the Experimental kernel<br>
> results in no or very little extra memory. I only checked GPU memory<br>
> usage (using GPU-Z), not render time.<br>
> <a href="http://temp.dingto.org/gpu_experimental_mem.pdf" rel="noreferrer" target="_blank">http://temp.dingto.org/gpu_experimental_mem.pdf</a><br>
><br>
> So please, could people run some tests on their own and report here?<br>
> It's very easy:<br>
> - Download latest build for your OS from the Buildbot<br>
> <a href="https://builder.blender.org/download/" rel="noreferrer" target="_blank">https://builder.blender.org/download/</a><br>
> - Render using the GPU, once with the Supported feature set enabled,<br>
> once with the Experimental one.<br>
> - Compare render time and GPU memory usage.<br>
><br>
> If you compile Blender yourself, make sure you use CUDA Toolkit 6.5 and<br>
> latest master.<br>
><br>
> You can use scenes from here:<br>
> - Simple scenes:<br>
> <a href="https://svn.blender.org/svnroot/bf-blender/trunk/lib/tests/cycles/" rel="noreferrer" target="_blank">https://svn.blender.org/svnroot/bf-blender/trunk/lib/tests/cycles/</a><br>
> - Larger ones:<br>
> <a href="https://svn.blender.org/svnroot/bf-blender/trunk/lib/benchmarks/cycles/" rel="noreferrer" target="_blank">https://svn.blender.org/svnroot/bf-blender/trunk/lib/benchmarks/cycles/</a><br>
><br>
> If there is no or little memory / render time increase we can drop the<br>
> extra CUDA kernel, improving Code maintenance and CUDA compilation time.<br>
><br>
> Thanks,<br>
> Thomas<br>
> _______________________________________________<br>
> Bf-cycles mailing list<br>
> <a href="mailto:Bf-cycles@blender.org">Bf-cycles@blender.org</a><br>
> <a href="http://lists.blender.org/mailman/listinfo/bf-cycles" rel="noreferrer" target="_blank">http://lists.blender.org/mailman/listinfo/bf-cycles</a><br>
<br>
<br>
</div></div><span class="HOEnZb"><font color="#888888">--<br>
Erstellt mit Operas E-Mail-Modul: <a href="http://www.opera.com/mail/" rel="noreferrer" target="_blank">http://www.opera.com/mail/</a><br>
</font></span><div class="HOEnZb"><div class="h5">_______________________________________________<br>
Bf-cycles mailing list<br>
<a href="mailto:Bf-cycles@blender.org">Bf-cycles@blender.org</a><br>
<a href="http://lists.blender.org/mailman/listinfo/bf-cycles" rel="noreferrer" target="_blank">http://lists.blender.org/mailman/listinfo/bf-cycles</a><br>
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div><span style="color:rgb(102,102,102)">With best regards, Sergey Sharybin</span></div></div>
</div>