[Bf-cycles] Collecting official benchmark results

Cezary Kopias cezary.kopias at gmail.com
Tue Nov 24 11:51:38 CET 2015


​

On 31 October 2015 at 15:22, Николай <sungreen at yandex.ru> wrote:

> Сергей, здравствуй.
> У меня нет видео платы AMD, только NVidia.
> По результатам теста ClassRoom получилось
> i7 3770 - 33.01.76
> opencl  -  8.33.88
> cuda    -  5.33.51
>
>
>
> 30.10.2015, 19:53, "Sergey Sharybin" <sergey.vfx at gmail.com>:
>
> Hey everyone,
>
> It appears that latest hardware from AMD in combination with latest beta
> driver gives really good performance on OpenCL rendering, even when using
> so called mega kernel. In fact, single Fiji card outperforms double D700
> cards from Mac Pro by a factor of 3 here in the studio.
>
> We would like to investigate performance on various hardware and systems
> further, including:
>
> - CPU performance
> - GPU CUDA performance
> - GPU OpenCL performance
>
> That's exactly where you can help us! :)
>
> Here are instructions how do a proper benchmark.
>
> First of all, you need to use officially approved benchmark scenes from
> [1]. You can grab then using regular SVN command:
>
>   svn co
> https://svn.blender.org/svnroot/bf-blender/trunk/lib/benchmarks/cycles/
>
> Tests are to be done with latest blender builds from our buildbot [2].
> This is crucial because we like to collect performance from both split and
> mega kernels and switch between them is only possible with latest builds.
>
> In order to make sure split kernel to use do the following console trick:
>
> Windows:
>
>   set CYCLES_OPENCL_SPLIT_KERNEL_TEST=1
>   path/to/blender.exe
>
> Linux / OSX:
>
>   CYCLES_OPENCL_SPLIT_KERNEL_TEST=1 path/to/blender
>
> In order to make sure mega kernel is used use the same console trick but
> use CYCLES_OPENCL_MEGA_KERNEL_TEST instead of
> CYCLES_OPENCL_SPLIT_KERNEL_TEST.
>
> Please always do final (F12) renders with the same resolution and number
> of samples as stored in the file.
>
> Sometimes it's needed to tweak tile size tho, for CPU tile size of 32x32
> is a good setting, for GPU it's 256x256.
>
> For AMD OpenCL it's recommended to use latest 15.10beta driver.
>
> When reporting results please include:
>
> - Exact CPU model you used
> - Exact GPU model you used
> - Timing itself of the scenes you rendered
> - Any modifications you did to the file
>
> If some configuration failed to render properly it's also interesting to
> know.
>
> For now please submit results here in a reply mail or mail directly to me.
> Once we've got enough data we'll do a nice spreadsheet and share all the
> results.
>
> Thanks in advance,
> Happy Cycling!
>
> [1]
> https://svn.blender.org/svnroot/bf-blender/trunk/lib/benchmarks/cycles/
> [2] https://builder.blender.org/download/
>
> --
> With best regards, Sergey Sharybin
> ,
>
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
> http://lists.blender.org/mailman/listinfo/bf-cycles
>
>
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> http://lists.blender.org/mailman/listinfo/bf-cycles
>
>
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