<p dir="ltr">Nope, same thing happens here on Win 7, Lukas.</p>
<div class="gmail_quote">On Sep 15, 2015 7:05 PM, "Lukas Stockner" <<a href="mailto:lukas.stockner@freenet.de">lukas.stockner@freenet.de</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">I noticed on Mint 17.1 that if you ran out of GPU memory before, subsequent renders will sometimes also fail, even if they usually work (like an empty scene). After rebooting or restarting the X server, the same scene works again.<br>
I suppose that this is a problem with the memory handling in the proprietary Linux kernel, which would mean it's outside of Cycles' influence.</p>
<div style="color:#787878">On Di., Sep. 15, 2015 at 2:56 nachm., Thomas Dinges <<a href="mailto:blender@dingto.org" target="_blank">blender@dingto.org</a>> wrote:</div><br><div style="background-color:rgb(255,255,255);background-repeat:initial initial"><blockquote>
<div>This is pretty much a known issue,
since day 1 of the experimental kernel. We added the experimental
kernel for features such as SSS, which are the cause of the memory
peak (or rather SSS enabled as part of our mega kernel).<br>
The only real solution here will be the CUDA split kernel. That
split might still happen later this year, it's on our todo list.<br>
<br>
Until then, as Brecht said, use it at your own risk.<br>
<br>
Am 15.09.2015 um 19:54 schrieb Piotr Arlukowicz:<br>
</div>
<blockquote>
<div dir="ltr">
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)">Thank
you Brecht, I understand this and that's OK with memory,
but... still 1.5GB is not enough even for empty scene... ?
Come on! :)<br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)">I
was so desperate that I started to look which GTX should I
buy. Surely 980Ti with 6GiB is a great graphics card, but WILL
it work?<br>
<br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)">Few
months ago Cycles worked in experimental mode just very well
and as I don't require it to be bulletproof, this memory lag
just kicks me out :( Sorry for sharing personal mood on the
list. I hope somebody can advice what to do. Because I don't
know if 6GB will be enough, and then there is also Titan with
12GB...<br>
<br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)">regards<br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)">pio<br>
<br>
</div>
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<div class="gmail_extra"><br clear="all">
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<div dir="ltr">
<div>
<div dir="ltr">Piotr
<div style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61);display:inline">
Arlukowicz, BFCT</div>
<br>
<div style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61)"><span style="color:rgb(204,204,204)"><b><span style="font-family:trebuchet ms,sans-serif"><b><span style="font-family:trebuchet ms,sans-serif">YT:</span></b><span style="color:rgb(162,196,201)"><span style="font-family:arial narrow,sans-serif"> <span style="color:rgb(208,224,227)"><u>/user/piotao?feature=guide</u></span></span></span></span></b></span>
<div style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(12,52,61);display:inline"><span style="color:rgb(204,204,204)"> <b><span style="font-family:trebuchet ms,sans-serif">FB:</span></b><span style="color:rgb(208,224,227)"> <span style="font-family:arial narrow,sans-serif"><u>/polskikursblendera</u></span></span>
<b><span style="font-family:trebuchet ms,sans-serif">TW:</span></b> </span><span style="font-family:arial narrow,sans-serif"><u><span style="color:rgb(19,79,92)"><span style="color:rgb(208,224,227)">/piotao</span><br>
</span></u></span></div>
<span style="color:rgb(153,153,153)"><b><span style="font-family:trebuchet ms,sans-serif">Blender
Network:</span></b> <b><span style="color:rgb(118,165,175)"><span style="font-family:arial narrow,sans-serif"><a href="https://www.blendernetwork.org/piotr-arlukowicz" target="_blank"></a><a href="https://www.blendernetwork.org/piotr-arlukowicz" target="_blank">https://www.blendernetwork.org/piotr-arlukowicz</a></span></span></b></span><br>
</div>
<span style="color:rgb(102,102,102)"><b><span style="font-family:trebuchet ms,sans-serif">Polski
Kurs Blendera:</span></b></span> <span style="color:rgb(11,83,148)"><span style="font-family:verdana,sans-serif"><a href="http://polskikursblendera.pl" target="_blank"></a><a href="http://polskikursblendera.pl" target="_blank">http://polskikursblendera.pl</a></span></span><br>
<br>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">2015-09-15 18:08 GMT+02:00 Brecht Van
Lommel <span dir="ltr"><<a href="mailto:brechtvanlommel@pandora.be" target="_blank">brechtvanlommel@pandora.be</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Experimental
mode uses significantly more memory. I don't know if this<br>
is more than expected at the moment, but it wouldn't
surprise me.<br>
<br>
This memory usage is one of the main reasons it's called
experimental<br>
mode, if all the features there worked well they would not
be called<br>
experimental. I know a lot of users enable this but it's
really at<br>
your own risk.<br>
</blockquote>
</div>
</div>
</blockquote>
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