Tesla

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Tesla

Postby Feniks » Mon May 03, 2010 10:53 pm

Feniks Mon May 03, 2010 10:53 pm
Has anyone tested this on a tesla yet ? Just wondering.
If so, is it worth the investment ?
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Re: Tesla

Postby YoonKyung » Tue May 04, 2010 12:45 am

YoonKyung Tue May 04, 2010 12:45 am
Feniks wrote:Has anyone tested this on a tesla yet ? Just wondering.
If so, is it worth the investment ?

The performace of it would be same to GeForce cards which has same GPU.
But it would be nice for rendering large and or complex scenes.
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Re: Tesla

Postby iknowmedia » Tue May 04, 2010 9:44 am

iknowmedia Tue May 04, 2010 9:44 am
But didn't have Tesla cards way more cuda cores?
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Re: Tesla

Postby radiance » Tue May 04, 2010 10:21 am

radiance Tue May 04, 2010 10:21 am
iknowmedia wrote:But didn't have Tesla cards way more cuda cores?


They are essentially the same cards but with more memory and they lack a display connector,
hence they are only for compute / CUDA, not for gaming or displaying a desktop.

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Re: Tesla

Postby iknowmedia » Tue May 04, 2010 3:34 pm

iknowmedia Tue May 04, 2010 3:34 pm
Thanks for the info!

So I can buy a Tesla and put it next to my gtx480 for extra raw power and memory for octane?
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Re: Tesla

Postby radiance » Tue May 04, 2010 3:55 pm

radiance Tue May 04, 2010 3:55 pm
if you need the memory and you have lots of money to spend, be my guest :)
although i think a GTX480 is sufficient for most uses, and way cheaper.

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Re: Tesla

Postby Feniks » Tue May 04, 2010 9:34 pm

Feniks Tue May 04, 2010 9:34 pm
It might be worthed trying with a small tesla farm once the multiGPU is stable imho.
I'm just curious about how many you'll need to get it rendering at delayed realtime if possible at all.
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Re: Tesla

Postby radiance » Tue May 04, 2010 10:50 pm

radiance Tue May 04, 2010 10:50 pm
Feniks wrote:It might be worthed trying with a small tesla farm once the multiGPU is stable imho.
I'm just curious about how many you'll need to get it rendering at delayed realtime if possible at all.


I would definately consider purchasing a tesla cards that's based on the fermi chip, eg a GTX480 tesla equiv.
besides more speed, it has many other advantages...

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Re: Tesla

Postby EricNV » Tue May 04, 2010 11:46 pm

EricNV Tue May 04, 2010 11:46 pm
I would definately consider purchasing a tesla cards that's based on the fermi chip, eg a GTX480 tesla equiv.
besides more speed, it has many other advantages...

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Like multi-GPU render farms :)

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Re: Tesla

Postby YoonKyung » Wed May 05, 2010 3:29 am

YoonKyung Wed May 05, 2010 3:29 am
Feniks wrote:It might be worthed trying with a small tesla farm once the multiGPU is stable imho.
I'm just curious about how many you'll need to get it rendering at delayed realtime if possible at all.


If you want to build a real time render farm, you must fix two arguments, size of 'render target' and 'max samples per second'.

if render_target_size = HD (width 1280, height 720);
and max_samples_per_second = 256(medium quality);

real_time_fps = 25;

render_target_pixels = 1280 x 720 = about 1M;
tesla_samples_per_second = 4M;
tesla_frames_per_second = tesla_samples_per_second / render_target_pixels = 4 fps;

num_teslas = (max_samples_per_second / tesla_frames_per_second) x real_time_fps = (256 / 4) x 25 = 64 x 25 = 400;
num_pcs_has_4_teslas = num_teslas / 4 = 400 / 4 = 100;

So, if you have 100 pcs which has 4 tesla cards in it, you can render HD size render target in real time.
And if you decrease the render_target_size to half then 50 pcs can do that.
Anf if you increase the max_samples_per_second upto double then 200 pcs will be needed to do that.

EDIT: fixed -> fix
Last edited by YoonKyung on Wed May 05, 2010 2:12 pm, edited 2 times in total.
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