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About the 2608 and 2609 WU's

post #1 of 14
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Hey guys ,

Just wanted to give a heads up, for others who may have gotten these WU's, or will get them. I been gaming lately, so pausing Vmware and only running the standard console client while fraggin, I expect to lose some PPD. But my hit lately has been bigger than my gaming should be causing, so I looked and it's taking me significantly longer per frame right now than usual. And it seems from what I've read, it's these projects themselves.

My 6400 rig, which usually takes a little over 12min per frame, on say a 2605 or 2604 WU or one similar to it, is now taking about 18min per frame on a 2608.

My 6600 rig, usually gets around 11min per frame on a 2605/4, is getting about 15min per frame on a 2609.

These 2608/9 apparently are worth the same points (what is a 2605, like 1720 or something?), but are longer to do. Apparently these WU's are also very sensitive to how much cache the cpu has, explaining why my 6600 is coping with them better. I think I've been getting a few of these, cause I know my average should be higher lately. You can read all about what I'm talking about here http://forum.folding-community.org/v...highlight=2608. The original poster is just having rig trouble obviously, but read in at least a page or two (a few pages in is better, good info), and they'll talk about it . Also apparently there will some kind of points adjustments soon too, I didn't read into it that much.


Anyway, I couldn't find much around here about these type of WU's, so I thought I'd post up about it .
    
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post #2 of 14
Actually, 2608/9's are not worth the same points as the 2604/5's. The 2608 is worth 1385 points and the 2609 is worth 1523 points. 2604/5's are 1760 points.
    
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by vanilla_eitz View Post
Actually, 2608/9's are not worth the same points as the 2604/5's. The 2608 is worth 1385 points and the 2609 is worth 1523 points. 2604/5's are 1760 points.
Ya I looked and you're right, they are worth less. So it's even worse, not only do they take longer, but worth less too. Thanks for correcting me on that .
    
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post #4 of 14
why don't you go with the SMP windows client??

works great for me
good enough
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post #5 of 14
Quote:
Originally Posted by JoBlo69 View Post
why don't you go with the SMP windows client??

works great for me
because the linux client pwns it.

my opty is only@2.7 so these 2609's are taking 28mins a frame as opposed to 20mins for the 2604/2605's
    
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post #6 of 14
Both the Linux and Windows SMP clients now have the so called "Slow WUs" They are heavy cache and memory bandwidth dependent. I will be posting some analysis later on the difference between the WUs based on adjustments to memory,clock speed,multipliers, and ram ratios. My results are already showing that some adjustments help some WUs performance, but do little or none for others.
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post #7 of 14
Thanks Knitelife, that would be nice. I've noticed about the same time wise, but, the 2608 & 2609 seem to use more RAM and my CPU runs 3c or 4c cooler. (still at 100%)
post #8 of 14
Thread Starter 
Just for an FYI about the 2608 one. My main rig with e6600 finished it's 2609 (which it was doing at about 15min like I said) and is now doing a 2608. It doesn't seem to be struggling with the 2608 like my e6400 was (at about 18min per frame). The e6600 rig is getting about 12min per frame on it, close to what it would get on a 2604 or 5.

So while the 2609 seems to slow up my e6600 rig a bit, the 2608 doesn't slow down so much, like on my e6400 rig.

Not sure which is affecting it most, but the two main differences between these rigs are:

Of course the 4mb cache on 6600, 2mb on 6400.

The e6600 rig has just over 3gb ram, while 2gb on 6400 rig--- both rigs dual channel and at 4-4-4-12 timings though.



I'm thinking it's the cache affecting it alot more than the extra ram for this 2608 WU. The 6400 rig actually has more mem bandwidth too, running 430fsb as opposed to about 380fsb on my main rig, but that doesn't seem to help it much. Either the extra cache or the extra ram, is helping the 6600 to cope more efficiently with this WU. (18min vs 12min, pretty big difference!)
    
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post #9 of 14
Quote:
Originally Posted by RoscoeMcGurk View Post
Just for an FYI about the 2608 one. My main rig with e6600 finished it's 2609 (which it was doing at about 15min like I said) and is now doing a 2608. It doesn't seem to be struggling with the 2608 like my e6400 was (at about 18min per frame). The e6600 rig is getting about 12min per frame on it, close to what it would get on a 2604 or 5.

So while the 2609 seems to slow up my e6600 rig a bit, the 2608 doesn't slow down so much, like on my e6400 rig.

Not sure which is affecting it most, but the two main differences between these rigs are:

Of course the 4mb cache on 6600, 2mb on 6400.

The e6600 rig has just over 3gb ram, while 2gb on 6400 rig--- both rigs dual channel and at 4-4-4-12 timings though.



I'm thinking it's the cache affecting it alot more than the extra ram for this 2608 WU. The 6400 rig actually has more mem bandwidth too, running 430fsb as opposed to about 380fsb on my main rig, but that doesn't seem to help it much. Either the extra cache or the extra ram, is helping the 6600 to cope more efficiently with this WU. (18min vs 12min, pretty big difference!)
It wont be the extra ram, anything over 512meg of memory is more than an SMP folding client will use. I am trying to test out different settings, but right now all my rigs have 3000 series WUs so I am hoping to get some of the 2000 series soon to test the effects of different settings.
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post #10 of 14
Thread Starter 
Quote:
Originally Posted by Knitelife View Post
It wont be the extra ram, anything over 512meg of memory is more than an SMP folding client will use. I am trying to test out different settings, but right now all my rigs have 3000 series WUs so I am hoping to get some of the 2000 series soon to test the effects of different settings.
Ya I'm sure you're right, since 512 max is allocated for my Vmware. I guess it popped in my head because I had some issues when running 1gb of total rig mem, and I had it stuck on the brain.

I recently had some RMA'd ram, so my 2nd rig only had 1gb temporarily. Not really much running on that rig in background, and left alone it was fine. But if I so much as opened photoshop, or even played a movie or something, Vmware would quite easily freeze up complaining about the lack of memory. Before I realized it was the 2608 WU itself running slow, I was wondering if the 1gb of ram was the culprit of my 18min frames. Until I added another gig, and it still ran slow.

Guess that's why I was thinking about it, but with 2gb I guess, your rig would have to be doing alot of other stuff, to even possibly cause issue or slowdowns. You'd have to be using over 1.5gb to even cut into that last 512m. I'm sure it's almost all the cpu cache helping the e6600 so much, if it isn't ram. It surely isn't the timings (same), or bandwidth (higher on slower rig), and both cpu's are clocked very close to each other as well.

I'll be interested to see your findings knitelife, on what really affects (or doesn't), these slow WU's .
    
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