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By Richard
#323934
dmeyer wrote:
Richard wrote:Sorry my dumb! What is it?
This.
Sorry can you excuse my dumb again but have to ask whilst I have the ear of people who know what maxwell wants!

The board you have there 4 sockets can take the new AMD 6100 opteron processors, though they are termed a server processor - does that mean that a setup like that can be used as a workstation?

I get lost a little bit in jargon! Will this be a render system for you or will it be your principle rig?
By Josephus Holt
#323936
Richard wrote:
dmeyer wrote:
Richard wrote:Sorry my dumb! What is it?
This.
Sorry can you excuse my dumb again but have to ask whilst I have the ear of people who know what maxwell wants!

The board you have there 4 sockets can take the new AMD 6100 opteron processors, though they are termed a server processor - does that mean that a setup like that can be used as a workstation?

I get lost a little bit in jargon! Will this be a render system for you or will it be your principle rig?
Richard, that is actually a very good question. I'm not a computer geek but have read quite a bit over the years. I'm sure anyone reading this will add their corrections if I'm not on track here.

A server is set up to handle multiple applications at once and tends to have lower clock speeds in the 2Ghz range. AMD has targeted this market with their Opterons with 8 and 12 core cpu's that do NOT have hyperthreading. With for instance a quad 8 (or 12) core machine like in this thread, for a server this gives you either 32 or 48 physical cores with excellent scalability (i.e. not much loss due to multiple cores) for being able to process many applications at the same time. If you throw enough cores at Maxwell Render, even if they're clocked in the low 2Ghz range, you've got a very powerful machine, but for most of us we have to consider the higher cost (double the amount of processors).

Workstations are designed to handle a single application like for instance Maxwell, with cpu's that have a higher clock speed like up to 4Ghz and use Intel's processors that have hyperthreading. Maxwell uses hyperthreading very effectively. For instance, a dual 6 core (12 total cores) with hyperthreading is going to give you very close to the output of 24 physical cores, but that applies when using it for a single application like Maxwell Render. Add to that the much higher clock speed, and you've got a great machine for Maxwell Render. Intel is coming out in the 3rd quarter of this year with a lower priced 6 core version of the i7-980...if I was going to build a machine as cost effective as possible, I would wait for that, overclock it to 4Ghz (or close to) and put a couple of those on an EVGA SR2 Classified motherboard. I would love to see the Benchwell score on that machine. I would expect it to be close in performance in a Benchwell test to an AMD system with four 12 core cpu's at around 2Ghz each.

There are other factors that play into it having to do with the architecture of the system which have also a significant effect on the performance of the system (it's one of the reasons why the Intel i7 processors perform so well), but all that is way over my head.
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By Richard
#323946
Mate appreciated response to my question! I didn't know about the cheaper 980's and certainly didn't know you could strap two on a board (if understanding). Even the current 980 is a good option I think with it's boost for single thread apps!

I don't upgrade that often and it's been a while so I want a race horse this time round! I'm thinking about saving coin to for better GPU (ram!) when they pop up given the likely GPU processing growth for unbiased!
By Josephus Holt
#323965
The lower priced ($500-$600 range) Intel 6-core processors to be released this fall will be at a slower stock speed than the 980's but if they're anything like their i7 predecesors they should overclock easily to 4Ghz (we won't know for sure until they're released). And yes, that EVGA SR2 Classified board takes two of those. That's the racehorse I would put my money on :wink:
By dmeyer
#323966
Josephus Holt wrote:The lower priced ($500-$600 range) Intel 6-core processors to be released this fall will be at a slower stock speed than the 980's but if they're anything like their i7 predecesors they should overclock easily to 4Ghz (we won't know for sure until they're released). And yes, that EVGA SR2 Classified board takes two of those. That's the racehorse I would put my money on :wink:
SR-2 takes on Xeons.
By dmeyer
#323968
Josephus Holt wrote: A server is set up to handle multiple applications at once and tends to have lower clock speeds in the 2Ghz range. AMD has targeted this market with their Opterons with 8 and 12 core cpu's that do NOT have hyperthreading. With for instance a quad 8 (or 12) core machine like in this thread, for a server this gives you either 32 or 48 physical cores with excellent scalability (i.e. not much loss due to multiple cores) for being able to process many applications at the same time. If you throw enough cores at Maxwell Render, even if they're clocked in the low 2Ghz range, you've got a very powerful machine, but for most of us we have to consider the higher cost (double the amount of processors).

Workstations are designed to handle a single application like for instance Maxwell, with cpu's that have a higher clock speed like up to 4Ghz and use Intel's processors that have hyperthreading. Maxwell uses hyperthreading very effectively. For instance, a dual 6 core (12 total cores) with hyperthreading is going to give you very close to the output of 24 physical cores, but that applies when using it for a single application like Maxwell Render. Add to that the much higher clock speed, and you've got a great machine for Maxwell Render. Intel is coming out in the 3rd quarter of this year with a lower priced 6 core version of the i7-980...if I was going to build a machine as cost effective as possible, I would wait for that, overclock it to 4Ghz (or close to) and put a couple of those on an EVGA SR2 Classified motherboard. I would love to see the Benchwell score on that machine. I would expect it to be close in performance in a Benchwell test to an AMD system with four 12 core cpu's at around 2Ghz each.

There are other factors that play into it having to do with the architecture of the system which have also a significant effect on the performance of the system (it's one of the reasons why the Intel i7 processors perform so well), but all that is way over my head.
The X5680's at stock speeds are running around 3300 on benchwell.

Assuming on SR-2 you could run them (or any Westmere, really) around 4.0GHZ then you'd be in the 3900 range.

From what I've seen on Istanbul, I'm expecting the Magny-Cours system (4 x 12 x 2.2Ghz) to run around 5800ish. It is to be used for Maxwell rendering and fluid sims.
By Josephus Holt
#323989
dmeyer wrote:The X5680's at stock speeds are running around 3300 on benchwell.
Assuming on SR-2 you could run them (or any Westmere, really) around 4.0GHZ then you'd be in the 3900 range.
From what I've seen on Istanbul, I'm expecting the Magny-Cours system (4 x 12 x 2.2Ghz) to run around 5800ish. It is to be used for Maxwell rendering and fluid sims.
Thx for the info. I see now that the sr-2 takes only xeon's :oops:
Can you use stock cpu coolers on those Magny-Cours?
By numerobis
#324082
jfrancis wrote: Should I use the parts in that article as a basis for building (having built for me) a machine?
Parts:
Case: NZXT Tempest EVo - $100 Street
I don't know this case, but i would look for a big case with good 120mm fans

Motherboard: Asus P6T - $210 Street
OK. But you should consider to get an Asus P6T Deluxe 2 or Gigabyte GA-X58A-UD7 for overclocking

Chip: Intel Core i7-980X - $999 List

HD (Spinning): Seagate Barracuda XT (2TB) - $300 Street
HD (SSD): Crucial Real SSD C300 (256 GB) - $759 Street
for me ssd is still too expensive... i would (will) go for a hdd raid0 with two 1TB hdds with 7200 rpm + a 2TB HDD for the backup.

Blu Ray Drive: Lite-on 4x - $109 Street
do you need a blue ray drive in a render workstation?

Graphics Card: ATI Radeon 5970 - $699 Street
the 5970 is a dual chip card - I think a 5870 single card would be the better choice for 3D. And maybe you should better buy a nvidia card if you plan to use one of the gpu renderers out there now... radeons are only supported using opencl not cuda.

RAM: 3 CSX Diablo DDR 3 (2GB) - $150 list
i don't know CSX, but maybe 12gb would be useful... if you plan to overclock better take some with 1600MHz.

Power Supply: Ultra X4 1050W ATX Power Supply - $280 list
i think a good and silent 750W should be enough when you go with a single chip video card, even for ocing. But take one with an EPS(8 pin) plug

OS: Windows 7 Ultimate - $220 direct
do you need the ultimate functions?


Here is a little guide for a good 980x-overclocking system :wink: :
http://www.overclock.net/intel-cpus/538 ... 930-a.html
By dmeyer
#324595
I've got some preliminary benches. These are a bit lower than I was expecting but could be due to a few issues:

-Running 2008 Server HPC Edition R2 beta. I am planning to try a Linux blend as well.
-Still sorting out the optimal board settings. My initial run was 3600ish. It's now up to almost 4900 with only a few quick tweaks.
-The machine runs through SL 1-12 so quickly that the CPU's never get anywhere near 100%. Only from about SL13 and up does it start to run at 100%. I am planning to run a longer bench mark to let it stretch its legs some more.
-Found out that Cinebench 11.5 is limited to 32 cores. :lol: :roll:
-I am wondering if Maxwell is having issues calculating the benchwell score. The console would always estimate "1:30 to next SL" then it would achieve the next SL in 10-15 seconds.



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By Lars Magnusson
#325236
I've just ordered a 980x machine and thought that I'd be top of the line...
..and then I see this !? Insane! :mrgreen:

Didn't even know such large motherboards existed! :shock:
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render engines and Maxwell

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