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 From:  Michael Gibson
2323.10 In reply to 2323.9 
Hi Burr,

> How do you think it will handle with 2 quad cores??
> :) (of the Xeon type!)

It should work great with that! I have not had a chance to test it myself with an 8-core system yet, but it is all set up to make use of how many every cores you have.

- Michael
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 From:  Brian (BWTR)
2323.11 In reply to 2323.10 
How can we all sleep-----WAITING!

Brian
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 From:  BurrMan
2323.12 In reply to 2323.10 
I'll let you know a couple day's after you release. I'm going to take my time setting the new system up properly before I dive in. Still waiting for delivery of the 30 inch blind guy's viewer!

I have a tire waiting to get rimmed because the old system was maxed with the rubber only.
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 From:  Michael Gibson
2323.13 In reply to 2323.12 
Hi Burr, so are you custom building your new 8-core system?

Are you going to be using that Intel Skulltrail motherboard, or is there some kind of special server one that you are using?

I was glancing around recently for what it takes to make an 8-core system and there did not seem to be a whole lot of choices available yet.

- Michael
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 From:  BurrMan
2323.14 In reply to 2323.13 
I had been researching the intel boards for the past few years (I am an Intel motherboard guy) and just came to the conclusion that I couldnt keep up with what would work well together. And with past experience of failure with dual processor builds, I put my trust in DELL. I bought a precision T7400. If you have any insight for me now would be the time. I hope it works well.
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 From:  Michael Gibson
2323.15 In reply to 2323.14 
Hi Burr, it looks like a killer system!

I have not been really following every single detail of the latest CPUs to be able to give much specific advice...

I think it's a pretty good idea to just let DELL worry about having all compatible stuff put together for you, definitely saves a lot of potential problems!

I guess the only thing that is maybe not quite optimal is pricing - the Xeon should work great but they may be pretty expensive compared to the brand new Core i7. But I'm not sure if there is any way right now to set up a 2-socket Core i7 system to get 8 cores instead of only 4, that's why I was interested in what you were doing for that.

But actually I'm surprised that the DELL 8-core system is not really as expensive as I would have thought neither. It actually looks pretty good in that department overall as well,

- Michael
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 From:  -ash-
2323.16 In reply to 2323.10 
> How do you think it will handle with 2 quad cores??
> :) (of the Xeon type!)


I only have two cores :-(


But still, two is better than one :-)

Regards
Tony

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 From:  BurrMan
2323.17 In reply to 2323.15 
Seems your more up than I . Didnt even know about a "Core i7" :) Maybe 4 core i7 is faster than my 8 core xeon?? (Thats usually what happens) still stuck in old core technology.
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 From:  Grendel
2323.18 
The I7 has four cores but they are hyper threaded so you get eight virtual cores. It's slower than actual double quad xeons but I am waiting for them to make dual cpu I7 boards so I can get 16 cores running in one box for under $4000. I too have a Dell with dual quad xeons and I can't wait to run mesh comparison times.
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 From:  BurrMan
2323.19 In reply to 2323.18 
Hey. That means I will make models and renders "JUST LIKE GRENDEL!" :o

Wait just a biiiit longer and get the core 8! (Actual 8, not virtual)
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 From:  Michael Gibson
2323.20 In reply to 2323.18 
Hi Grendel,

> I too have a Dell with dual quad xeons and I can't wait
> to run mesh comparison times.

I'll also add in a moi.ini switch that can be set to limit the mesher to only one thread, that would be good to get a benchmark of the new mesher with that limited as well to see how well it is scaling out to a higher number of cores.

There are also quite a lot of optimizations that improve just single-core meshing speed by a significant factor as well, so without a thread-limiter setting it won't be easy to know what factor is coming from multi-core and what is coming from the other optimizations.


It is possible for certain kinds of scalability problems to get magnified when the number of cores gets fairly large. I don't think that I should have much of that but it is hard to know for sure without actual testing on a higher number of cores, I have been testing mostly on quad core.

Are you using XP or Vista? There appears to be some tweaks in Vista to make a certain kind of multi-core scaling problem kind of go away ("lock convoys"), but I'm not quite sure right now how much that affects MoI in particular.

- Michael
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 From:  Grendel
2323.21 In reply to 2323.20 
I'm using XP 32-bit.

I'll run a comparison with just a straight v.1 mesh and a beta mesh with the multi-core mesher if that helps remove the intangibles.
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 From:  Michael Gibson
2323.22 In reply to 2323.21 
Hi Grendel,

> I'll run a comparison with just a straight v.1 mesh
> and a beta mesh with the multi-core mesher if that
> helps remove the intangibles.

That would certainly be good to know too!

If you could do 3 tests it would help to get the full picture though.

One with version 1.0, another with the new mesher running full out, and a last one with the new mesher limited to 1 thread (by a special moi.ini setting enabled).

Almost ready, I think I've got the meshing all wrapped up now and I just need to clear a list of some other bugs first before releasing. Maybe a couple of days.

- Michael
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 From:  Grendel
2323.23 
No problem Michael three tests
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 From:  Anis
2323.24 In reply to 2323.22 
Hi Michael....

> Maybe a couple of days.
I think you will release the next beta at Jan 21, 2009.
Base on the history, you like to release at 21 :)
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 From:  Michael Gibson
2323.25 In reply to 2323.24 
Hi Anis, yes it is funny how it has been working out to be the 21st several times now! :)

This time I think probably before that though.

- Michael
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 From:  jbshorty
2323.26 
i just bought a dual-quad Xeon about 5 months ago. So i'll stick with it for at least a few years. I think my next move is to build a stripped down render slave unit...

jonah
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 From:  Grendel
2323.27 In reply to 2323.26 
Thats great JB, I remember when I used to wait for several hours for a render to come out of the oven. ;P)

I've looked at getting a renderboxx(four quad xeon rack). The price is around $6k which is roughly the same as getting two more workstations but the space factor is a lot smaller. Plus your not using up as many resources.
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 From:  jbshorty
2323.28 In reply to 2323.27 
When i spoke to Boxx about the Renderboxx ("Pizzabox" as they call it), they told me a price of around $2500. There is no GPU or anything, just chews the data and returns it (excrements it?) back to the master unit... So one of must be wrong about the price... Hopefully it's you! :P
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 From:  Grendel
2323.29 In reply to 2323.28 
I hope it is me because I'll have one sooner than I thought....must check again.

I am also holding on to a hope that 3d soft companies will be able to harness the CUDA processors that nvidia introduced. 240 processors on a unit, how sweet would that be to have stuffed into an excrement box.

EDITED: 16 Jan 2009 by GRENDEL

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