[Bf-cycles] Switch to CUDA Toolkit 4.2

David Black db4tech at yahoo.co.uk
Sun Apr 29 22:31:58 CEST 2012

Hi Thomas,

Do you have a download link for your compiled version with 4.2.9?  If 
helpful, can test it for you with both a 1GB GTX 460 and 2GB GTX 580m 
then let you know the results, if it crashes/freezes or not.

Hope you're having a great weekend!



On 29/04/2012 17:29, Thomas Dinges wrote:
> Hi everyone,
> I did some extensive testing today with the new (stable release 4.2.9)
> CUDA Toolkit with Blender 2.63 (45996) and current Trunk.
> The results are fine (at least on my GT540 card), could not test other
> cards yet.
> Render time was the same, or in some cases a few seconds better.
> However I experienced 1 serious issue with the Mike Pan BMW Test scene.
> 2.63 compiled with Toolkit 4.2 did not want to render, it frooze at the
> "Packing BVH Triangles". I was unable to kill the Blender process, I had
> to force shut down my computer. This happened 2 times (I did not want to
> test it further).
> I think that this might be a bug in Cycles, because the same scene works
> fine in current Trunk (with the improved BVH code).
> So I would suggest to stick with Toolkit 4.0 for a possible Blender
> 2.63a, but switch to Toolkit 4.2 in SVN and for 2.64. I could not find
> an issue with it and current Trunk.
> Best regards,
> Thomas
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