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Re: OctaneBench

Postby glimpse » Sun Apr 05, 2015 10:06 am

glimpse Sun Apr 05, 2015 10:06 am
petermax wrote:I've been away for a while so excuse my ignorance.
This bench indicates that the 980 is quite a bit faster than the Titan http://render.otoy.com/octanebench/resu ... ingleGPU=1 these days.

Is that correct? Have the optimizations improved the performance to that degree?
Because when the 980 came out it was far slower than the Titan as I recall?

Could someone clarify. Thanks!


Hi there, Peter.

Yes after 2.13 (I think) Octane was optimised for Maxwell architecture cards - so 980 now runs pretty good. It's nice card, but when You can get 6GB 780 for less..why to go for 980? Sadly recently 780 6GB isharder and harder to get as they are discontinued..
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Re: OctaneBench

Postby glimpse » Sun Apr 05, 2015 10:20 am

glimpse Sun Apr 05, 2015 10:20 am
nikolafermi wrote:Is NVIDIA still the only well-supported option as far as GPUs go? The FAQ says CUDA is required but recent posts talk about an OpenCL version?
Is the complexity of the scene being rendered limited by the memory on the GPU, and if so,
Does memory add up over multiple cards or limited to the lowest memory card?
Is 1.5GB enough?
How do 2, 3, 3.5, 4, 6, or 12GB options compare?


Hi there =)

Jop, nvidia cards is still the pnly option intill OctanRender III so if You need a working solution now look for them.

Memory doesn't not add up, so You're still limited by the card having smallest amount of vram =) but..
Now You have out-of-the-core-texture functionality, so You can render bigger scenes as before, though You have to keep in mind that still mesh, frame buffer should be in vRam..so choose the card acording to Your needs..

What do you mean by saying how do these cards compare? Vram size only influence scene size You can load, speed wise they are as they are depending on chip(core count, core speed, etc.=) - check the OctaneBench for speed comparison =)

Is that 1,5GB enough? Well, it depends on Your workflows =) for some, yes, for others, No =)..do some testing / that's the best move You can make to get Yourself familiarise with this engine =) & hardware needs for Your projects.
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Re: OctaneBench

Postby petermax » Sun Apr 05, 2015 11:15 am

petermax Sun Apr 05, 2015 11:15 am
glimpse wrote:
petermax wrote:I've been away for a while so excuse my ignorance.
This bench indicates that the 980 is quite a bit faster than the Titan http://render.otoy.com/octanebench/resu ... ingleGPU=1 these days.

Is that correct? Have the optimizations improved the performance to that degree?
Because when the 980 came out it was far slower than the Titan as I recall?

Could someone clarify. Thanks!


Hi there, Peter.

Yes after 2.13 (I think) Octane was optimised for Maxwell architecture cards - so 980 now runs pretty good. It's nice card, but when You can get 6GB 780 for less..why to go for 980? Sadly recently 780 6GB isharder and harder to get as they are discontinued..


sorry to confirm this again, but are those benchmark indeed accurate? is it correct that the 980s are faster than titans now, because I'm aware the 980s got optimized but last I heard even after optimization they were substantially slower than titans so it's now very surprising to see that they are on par with Titan Blacks and 780 Ti? Is that really correct?

thanks
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Re: OctaneBench

Postby glimpse » Sun Apr 05, 2015 12:15 pm

glimpse Sun Apr 05, 2015 12:15 pm
When Maxwell were supported, they were very slow, but then, after optimisations GM204 (980) run as fast as Gk110 (titanBlack & 780Ti)..for sure faster than Titan =), but the most will be influenced by Your cooling, that makes quite a differense =) You can make 980 or even 780 faster if You wish.. =)
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Re: OctaneBench

Postby nikolafermi » Sun Apr 05, 2015 1:54 pm

nikolafermi Sun Apr 05, 2015 1:54 pm
glimpse wrote:Hi there =)

Jop, nvidia cards is still the pnly option intill OctanRender III so if You need a working solution now look for them.

Memory doesn't not add up, so You're still limited by the card having smallest amount of vram =) but..
Now You have out-of-the-core-texture functionality, so You can render bigger scenes as before, though You have to keep in mind that still mesh, frame buffer should be in vRam..so choose the card acording to Your needs..

What do you mean by saying how do these cards compare? Vram size only influence scene size You can load, speed wise they are as they are depending on chip(core count, core speed, etc.=) - check the OctaneBench for speed comparison =)

Is that 1,5GB enough? Well, it depends on Your workflows =) for some, yes, for others, No =)..do some testing / that's the best move You can make to get Yourself familiarise with this engine =) & hardware needs for Your projects.

Hi Glimpse, thanks for the advice! Sorry I'm more or less a complete noob on this, I can calculate price/performance based on speed in a benchmark, but have no idea on memory.
Basically what is reasonably possible under 1.5GB, 3GB, etc of memory and how do you feel working within such a constraint.
From what I see a lot of the more active people are now on 6GB. But there is far more speed to be had at 1.5GB.


Also, has anyone tried "PCI-E Express 1X to 4 Port PCIe 1X Riser Switch Card"?
Apparently it acts like a network router/switch that splits a single PCIe 1x slot on your mobo into Four PCIe slots.
Does this thing even work? Obviously you'd only get 1/4th the bandwith but if it does...
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Re: OctaneBench

Postby petermax » Sun Apr 05, 2015 9:31 pm

petermax Sun Apr 05, 2015 9:31 pm
glimpse wrote:When Maxwell were supported, they were very slow, but then, after optimisations GM204 (980) run as fast as Gk110 (titanBlack & 780Ti)..for sure faster than Titan =), but the most will be influenced by Your cooling, that makes quite a differense =) You can make 980 or even 780 faster if You wish.. =)


well that's a surprise indeed, seems optimizations went better than expected, thanks for the info!
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Re: OctaneBench

Postby Tutor » Thu Apr 09, 2015 11:29 pm

Tutor Thu Apr 09, 2015 11:29 pm
It's two, two, two tools in one: an excellent benchmarking tool and an excellent assist tool for goal oriented GPU tweaking. Just as the best tool to assist in tweaking CPUs to handle Cinema4d CPU rendering speedily is Cinebench, the best tool to assist in tweaking GPUs to handle Octane GPU rendering speedily is now OctaneBench. Octanebench will help my system to peak again further to the right and simultaneously help me to establish overclock presets for various rendering tasks. Compare this - live in development - [ https://render.otoy.com/octanebench/sum ... GTX+780+Ti ] with Score Distribution pic, below - first large hump is where my system's performance had stalled before I had realized that there could be other uses to OctaneBench; lower humps to right is where OctaneBench's assistance came into play during tweaking of this air-cooled GPU system. Now, my ultimate goal is to get an OctaneBench score of, at least, 960 (or about 120 pts per 780 Ti ACX SC OC) on this system, while keeping all GPU temperatures below 85 degrees (C); my interim goal is to get a score of, at least, 912 (or about 114 per GPU).
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Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
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Re: OctaneBench

Postby Mannimedia » Thu May 21, 2015 4:01 am

Mannimedia Thu May 21, 2015 4:01 am
Octane version:
2.17
Operating system:
Windows 8 64-bit
Devices:
GeForce GTX TITAN X
GeForce GTX TITAN X
GeForce GTX TITAN X
GeForce GTX TITAN X


Scene Kernel Ms/s GTX980 Ms/s Ratio Weight Score
Idea (by Julio Cayetaño) info channels 421.99543 81.25 5.194 10 17.312633
Idea (by Julio Cayetaño) direct lighting 108.660467 18.64 5.829 35 68.009949
Idea (by Julio Cayetaño) path tracing 92.438985 15.99 5.781 35 67.44558
Idea (by Julio Cayetaño) PMC 16.845801 2.88 5.849 20 38.99491
ATV (by Jürgen Aleksejev) info channels 190.157911 32.48 5.855 10 19.515385
ATV (by Jürgen Aleksejev) direct lighting 72.434923 12.4 5.842 35 68.151138
ATV (by Jürgen Aleksejev) path tracing 58.354443 10.02 5.824 35 67.944295
ATV (by Jürgen Aleksejev) PMC 20.881967 3.77 5.539 20 36.926555
Box (by Enrico Cerica) info channels 331.511335 59.18 5.602 10 18.672487
Box (by Enrico Cerica) direct lighting 68.835765 11.76 5.853 35 68.28945
Box (by Enrico Cerica) path tracing 67.598038 11.74 5.758 35 67.17579
Box (by Enrico Cerica) PMC 20.956631 3.83 5.472 20 36.478034


Total score
574.916206
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Re: OctaneBench

Postby glimpse » Thu May 21, 2015 7:03 am

glimpse Thu May 21, 2015 7:03 am
Mannimedia wrote:..
Quad GeForce GTX TITAN X

Total score
574.916206


Nice score! on air or under water? =)
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Re: OctaneBench

Postby smicha » Thu May 21, 2015 9:15 am

smicha Thu May 21, 2015 9:15 am
Tutor wrote:It's two, two, two tools in one: an excellent benchmarking tool and an excellent assist tool for goal oriented GPU tweaking. Just as the best tool to assist in tweaking CPUs to handle Cinema4d CPU rendering speedily is Cinebench, the best tool to assist in tweaking GPUs to handle Octane GPU rendering speedily is now OctaneBench. Octanebench will help my system to peak again further to the right and simultaneously help me to establish overclock presets for various rendering tasks. Compare this - live in development - [ https://render.otoy.com/octanebench/sum ... GTX+780+Ti ] with Score Distribution pic, below - first large hump is where my system's performance had stalled before I had realized that there could be other uses to OctaneBench; lower humps to right is where OctaneBench's assistance came into play during tweaking of this air-cooled GPU system. Now, my ultimate goal is to get an OctaneBench score of, at least, 960 (or about 120 pts per 780 Ti ACX SC OC) on this system, while keeping all GPU temperatures below 85 degrees (C); my interim goal is to get a score of, at least, 912 (or about 114 per GPU).


Tutor,
The results you've posted are indeed impressive, especially these are air-cooled cards. According my calculations 8x780Ti may score around 1060 (watercooled) on stock bios. My GTX 780 6GB which has 2304 cores - scores 106 (1340 Mhz on core and 7000 MHz on memory). Hence a 780 Ti with 2880 cores has 25% more of computing power giving 1.25*106=132.5. Such results require overclock over 1300mhz and I am not sure how well the stock fan would cope up with heat dissipation. Hope to see you breaking 1000 score limit. Good luck ;)

BTW I managed to get 0.044375 score per core on a 9600 cored system (0.046 for a single 780).
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build-log http://render.otoy.com/forum/viewtopic.php?f=9&t=42540
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