 03 March 2011
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#61 |
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Expert
 Eric Craft
Dallas,
USA
Join Date: Mar 2002
Posts: 5,760
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Originally Posted by jonahhawk:
When I rendered GPU only, the render time for 100 iterations went up significantly. In my case, the CPUs play a significant role. PiXeL_MoNKeY, in your case, I can see that with 24 badass GPUs, the CPU is probably just getting in the way.
It is only 3 cards, running at x8 speed, instead of x16 speed. I wish I had 24 GPUs, but alas it is only 3.-Eric __________________
"The Evil Monkey hiding in your closet." |
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05 May 2011
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#62 |
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Lord of the posts
David Dustin
Dustin Forensics
Georgia,
USA
Join Date: Dec 2006
Posts: 1,004
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We tested the iRay example in Max 2012 (we dont have 2011 installed on the new 12 core machine).
100 passes = 11 seconds GPU only 10 minute render. We stopped it after about 4 minutes as the cards were getting warm (97C) and we didn't want to "let any smoke out" of them. At 4 minutes worth of render the image looked pretty good. David |
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05 May 2011
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#63 |
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Expert
 CGConnect Member
Pete Sedlacek
Visualization Specialist
PSVISUALS
St. Paul,
USA
Join Date: Jul 2007
Posts: 1,164
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And what GPU (and how many) is being used in that system? That's over twice as fast as my system even with CPU.
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www.psvisuals.com - 3D Visualization and Content Creation |
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05 May 2011
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#65 |
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Expert
Eric Craft
Dallas,
USA
Join Date: Mar 2002
Posts: 5,760
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Just tested on my machine in 2012 and it appears that 2012 is faster than 2011 iray.
Originally Posted by GPU only - 10 min:
RC 0.3 progr: progressive: finished (sub)frame 4103 in 0.61686 seconds
RC 0.3 info : progressive: stopping rendering due to time constraints RC 0.3 info : progressive: total rendering time was 599.70 seconds RC 0.3 info : progressive: average frame time was 0.58 seconds
Originally Posted by GPU only - 100 Iterations:
RC 0.3 progr: progressive: finished (sub)frame 100 in 0.29861 seconds
It appears that there is about a 16% increase in speed over 2011.RC 0.3 info : progressive: stopping rendering due to max samples constraint RC 0.3 info : progressive: total rendering time was 14.51 seconds RC 0.3 info : progressive: average frame time was 0.54 seconds On the temperature of cards they peaked at 90°C, but held at 87°C once the fans spun up. -Eric __________________
"The Evil Monkey hiding in your closet." |
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05 May 2011
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#66 |
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PRO
Join Date: Dec 2004
Posts: 141
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can someone second:
the scene render here in full view 1min20sec but a region render of just 30% do also render 1min20sec a crop of 10% aswell 1min20 it not matters what region or region size i choose - the rendertime is the very same another iray file I tested have the same "problem" so I wonder what the matter is ?! Last edited by QuakeMarine1 : 05 May 2011 at 06:04 PM. |
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05 May 2011
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#69 |
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Lord of the posts
David Dustin
Dustin Forensics
Georgia,
USA
Join Date: Dec 2006
Posts: 1,004
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I was reading on the Nvidia forum regarding the GTX-590:
"Correct. More important for CUDA is that these two GPUs are directly connected via a NF200 PCI-Express switch on the card. Once the second release candidate of CUDA 4.0 comes out, the two GPUs should be able to directly copy memory between each other without loading the external PCI-Express bus. This could have useful application to large multi-GPU algorithms that needs to sync data between devices periodically." http://forums.nvidia.com/index.php?showtopic=196269 Thoughts? (or course my hope is they will figure out a way to use all available card RAM).. David |
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08 August 2011
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#71 |
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Expert
 Kelly Michels
3ds Max Beta Manager & Senior Autodesk MED QE
Autodesk
Kingwood,
USA
Join Date: Jan 2004
Posts: 394
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The link in the first post fails, can someone post that file?
I got it, thx anyway... __________________
Twitter: @Kelly_Michels kelly.michels@autodesk.com 3ds Max Senior QA / 3ds Max Beta Manager M&E Division Beta Administrator Autodesk, Inc Last edited by KellyM : 08 August 2011 at 07:46 PM. Reason: I got a copy... |
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08 August 2011
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#72 |
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Expert
Kelly Michels
3ds Max Beta Manager & Senior Autodesk MED QE
Autodesk
Kingwood,
USA
Join Date: Jan 2004
Posts: 394
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Dual Quad XEON E5530 @ 2.4GHz (16 virtual cores)
Cubix GPU Xpander - Quadro FX 5000 - 3 x Tesla 2050 12GB RAM Temps: 175f / 79.4c (This is usually lower but we are having to cut back power consumption due to the high heatwave, my office is close to 80f today and outside reached 107f / 41.6c!) 100 iterations @ 9 seconds 10 minute render ( 6043 iterations ):  __________________
Twitter: @Kelly_Michels kelly.michels@autodesk.com 3ds Max Senior QA / 3ds Max Beta Manager M&E Division Beta Administrator Autodesk, Inc |
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08 August 2011
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#74 |
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Expert
CGConnect Member
Pete Sedlacek
Visualization Specialist
PSVISUALS
St. Paul,
USA
Join Date: Jul 2007
Posts: 1,164
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Wow, with 9 seconds you win this thread...
 I think rendering with that machine is what is causing the heatwave! __________________
www.psvisuals.com - 3D Visualization and Content Creation Last edited by Decency : 08 August 2011 at 01:39 PM. |
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11 November 2011
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#75 |
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New Member
 al noman
dhaka,
Bangladesh
Join Date: Jul 2011
Posts: 15
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Originally Posted by JeffPatton:
Ah, well the way you have it listed is extremely confusing then (at least for me). It looks like the text below the your renders would be the render time for those images. But now I understand the post.
At any rate I've adjusted my original post accordingly. actually i didnt understand yet. if i select ' time 10 min then no chance to select iterations(passes) =100. what i didnt understand?. |
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