<div dir="ltr"><div>Hi,</div><div><br></div>So what exactly is causing the huge memory spikes when using GPU SSS?<div><br></div><div>Thanks</div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><p><span style="color:rgb(31,73,125)">Vlad Mafteiu Scai<br>
</span></p>
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<br><br><div class="gmail_quote">2014-08-28 6:50 GMT-07:00 David Black <span dir="ltr"><<a href="mailto:db4tech@yahoo.co.uk" target="_blank">db4tech@yahoo.co.uk</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#ffffff" text="#000099">
<div><font face="Calibri">Hi Carlo,<br>
<br>
Ah, yes, memory usage statistics provided were from Cycles
reported usage.<br>
<br>
David</font><br>
<div><br>
<p style="font-size:x-small"><a href="http://www.3d-designs-davidblack.blogspot.com" target="_blank">3d-designs-davidblack.blogspot.com</a></p>
</div><div><div class="h5">
On 28/08/2014 05:08, Carlo Andreacchio wrote:<br>
</div></div></div>
<blockquote type="cite"><div><div class="h5">
<div dir="ltr">
<div>Just tested the memory usage, there still is a massive
increase in memory usage when using experimental vs supported
kernels...</div>
<div><br>
</div>
<div>Generic Test scene:</div>
<div>Supported - 850mb</div>
<div>Experimental - 1408mb</div>
<div><br>
</div>
<div>Tried to run Mike Pans BMW benchmark but I could not get it
to load under experimental kernel (1500mb ram limit, kernel
was too big)</div>
<div><br>
</div>
<div>Are you using a external program to report the memory usage
for the GPU? Cycles does not report GPU memory correctly to
blender. </div>
<div><br>
</div>
<div>Carlo</div>
<div><br>
</div>
<div>>Hi Thomas and Sergey,</div>
<div>></div>
<div>><a href="http://lists.blender.org/pipermail/bf-blender-cvs/2014-August/067323.html" target="_blank">http://lists.blender.org/pipermail/bf-blender-cvs/2014-August/067323.html</a></div>
<div>></div>
<div>>Firstly, thank you kindly for adding experimental GPU
SSS cubin files, </div>
<div>>what an exciting, unexpected, surprise!</div>
<div>></div>
<div>>Amazed to find Experimental cubin using exactly same
amount of memory as </div>
<div>>Supported cubin in a complex scene containing SSS.
Also, less memory </div>
<div>>than Blender 2.70a and 2.69.1 (GPU SSS test version).</div>
<div>>Understandably Experimental cubin are a little slower
than Supported </div>
<div>>cubin due to SSS calculations, but not by a massive
amount!</div>
<div>>If helpful/interested added GPGPU memory consumption
and speed test </div>
<div>>results at the end of this mail.</div>
<div><br>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
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