[Bf-cycles] 3 way cuda performance comparison on sm_21 and sm_20 cards
Jürgen Herrmann
shadowrom at me.com
Fri Jun 14 18:42:28 CEST 2013
Hi,
I did extensive tests on windows with different cuda toolkits and different
builds (VS 2008, 2012 and MinGW) lately to see if I can find a reason why
Cycles is so much slower on Windows/MSVC builds.
My results can be reviewed here : http://download.shadowrom.de/Benchmark.pdf
We could speed up CUDA performance on all OS if we use nvcc compiler
optimization switches and some optimization in the cuda kernel code.
Ive also tried to profile cycles with Very Sleepy on Windows MSVC builds
too. I am still experimenting on how to speed up the time critical parts for
M$ compilers
/Jürgen
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.blender.org/pipermail/bf-cycles/attachments/20130614/6e055f60/attachment.htm
More information about the Bf-cycles
mailing list