computer rendering slowly,

nickpap

nickpap

nickpap

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15 Oct 2012
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hi guys

i have a problem, have tried cad/3d forums but no one is technical enough to help

I recently built a computer, its a dual opteron intelagos 6272 system with 64 gig of ram and a 256 gig solid state drive. nvidia quadro 4000 card.

I use 3d studio max and vray to render images but for some strange reason its rendering my images at half the speed of my other less powerful core i7980x machine. i know it should be at least 2.5 times faster in accordance with benchmark tests. Also i know its not the 3d max file because ive tested the same file on my other slower machine and its renderings 3 times as fast???

everything else seems to run really fast and there are no memory errors, disk errors or anything that jumps out as being wrong? the solid state is lightning fast, all 32 cores operate fine im really struggling here! please help
 
Hello and welcome to the forum.

Don`t know much about video rendering, but does this process involve floating point calculation?
 
hi, thanks for your responce,
sorry i dont know how vray renders and about floating points. i know how to use the software but not really the mechanics of how it works

when i first built the machine it rendered images totally fine for about a month. I then decided to put in a new graphics card (nvidia tesla c2050) after this i noticed the difference in speed of the renders. I thought it must be a problem with the card but ive since changed the card but its still rendering slowly..

i understand its a bit of a strange senario, you have to be using the software to really understand my problem. its just not performing as fast as it should and i cant find a solution..
 
also vray does not render video, i use it to render still 3d images for architecture and interior design. video rendering i accociate with programs like after effects and abdoe premier, final cut.. these can take advantage of your systems gpu and render video much faster. My 3d studio max vray relies very much on how many processing cores you have available and memory. the more cores you have the better
 
yes they all run at 100 per cent when the image is rendering..

the same file on my core i7980x takes 5 hours to render. on my 32 core dual opteron it takes about 22 hours?
 
I'm not familiar with Vray but in Mental Ray the render time can vary across multi-core processors depending on the BSP settings.

Does Vray have any of these?

Just had a quick look and there appears to be others having similar issues:

http://area.autodesk.com/forum/auto...ds-max--3ds-max-design-2011/64-cores-support/

From that thread someone recommends this
You need to install latest VMware and dedicate 2 processors 32cores to it. Then try net render on Vray please let me know if this helped You.
Click to expand...

Any joy trying that?
 
thanks for the link,,

actually the guy in the other forum is having problems recognising 64 cores...i only have two processors running 32 cores and these cores are running perfectly. you need windows server to run 4 processors as i understand.

vray acts the same as mental ray, depends on the amount of cores and also the quality of the cores, my 32 opteron cores are no match for the latest 8-12 core multi threaded xeons.. but still thats not the problem. clearly if the same file is rendering at almost 3 times the speed as my 980x 6 core machine then something else is effecting it..

thanks also for the vmare link. will try that out tonight. i must say though all 32 cores are present and working fine it seems
 
sorry just to recap.

my machine is not rendering at the same speed as my core i7980x, its actually taking 3 times as slow as it. this is why i know theres a big problem
 
thanks a lot. thats a really interesting thread. Im starting to think its something to do with memory allocation to the opterons cores?

actually i have a third machine i brought from titanus computers last year. its also a dual opteron machine but uses the older 6100 opteron chips. it renders fast and to the expected benchmark test speeds.

Im wondering if in regards to my own custom build, i missed something in the installation? like motherboard updates or something ram related that i should have done/activated...
 
Hm does seem very slow for the machine, not to keen on Max myself i've always been a Maya person. Do you have Maya? Could try importing the file into there, weird for it to be showing 100% on the cpu and it just be going so slow, what's the gpu useage at?
 
no i dont have maya, at the moment i wish i used maya instead!!!

vray doesnt use GPU power. it does if you use vrayRT, thats the real time rendering option but i dont use that yet. need a couple of tesla cards one day to try it properly

ive been on about 4 diff forums in the last few days. really im stuck with this machine i spent lots on to build and it renders slower then my 5 year old laptop
 
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