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...............................................................................................
..............................
Date....................Runtime...................Daily Points.......Daily Results.........Place

08/01/2005..... 1:056:09:26:13.......... 254,135............. 1,280................. #2

07/31/2005..... 1:012:08:46:10.......... 236,163............. 1,297................. #2
07/30/2005..... 1:050:08:55:58.......... 260,039............. 1,351................. #2

....................................................................................................
.........................

(Stats-Image Generator by WCG Member Börni)
[Aug 2, 2005 12:16:30 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: smile smile Join MyOnlineTeam Today smile smile

I think I have a 205 "overall" rig so the ceiling isn't 200.....I agree with mousie that it is probably 300.

Odd though that ram limit is 300 yet disc limit appears to be 200 (196 in my case).
[Aug 2, 2005 12:20:03 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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DAJ your hypothesis (I spell checked it wink ) is correct

The disk size metric believes you have 9.77Gb even if you don't have 9.77Gb spare as long as you set it in the device settings to 10Gb. As the agent only has a small footprint on your hardrive at the moment and most likely long into the future I recommend in the "What are points all about FAQ" that everyone set it to 10Gb because you get the most points that way and it's fair for everyone


So you're saying the composite scores of the client are ignored and it uses the device profile - this seems strange. It was interesting that the client correctly would say that the composite was lower when I was running of the small hard drive. I was also under the notion that hourly points were approx a factor of ~5.2-5.3 of the composite which means I would expect that it is really using the 62 and not the 70 (which would be like 5.8 divisor). This sort of begs the question on which one it is using since the 70 should reflect what the system is using if it is using the device settings and not the local client score. That is a bit confusing but it smells like it is ignoring both the local client score and the device settings and it is using the original local hard drive score.

My real concern on posting this was not the 1.56 points an hour I thought I might be losing but the issue of it not recognizing the amount of hard drive available. I just purchased another motherboard to upgrade a relative and I was planning on playing with a network boot so I would not need to run with a hard drive before I did the upgrade. Playing with the concept of a computing farm with minimum components to reduce power requirements and cost of creating. If the network host was a problem than this plan would be an issue.

The other thing I have been trying to understand is if it is better to buy a few screamers or buy really low end machines. From a cost perspective I can buy a Pentium III / 866 mHz machines as complete systems for $45 each and I'm getting 400 points a day on one of these - so 2.5 of these machines would equal a top end machine given the current limit on 2X score. So for $115 dollars I get the equivalent of a top end machine points wise. It seems like this would be cheaper unless the power costs are a big delta. The motherboard / CPU I just bought was a Sempron 2200 with 0.5 GB of memory and it came in at $170 and that doesn't include OS, a case, power supply or hard drive. So without a hard drive or OS I'm near $200 and this machine might not score a 200 without more memory or playing with overclocking. Therefore, it seems like low end machines will win if you are trying to build point capability at the lowest cost. That might change if the 2X limit was lifted of course. Just some thought I'd share some ramblings on my hobby biggrin
[Aug 2, 2005 12:52:32 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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smile smile Join MyOnlineTeam Today and save the planet !!1! smile smile

Late congrats to siseberg and Tychirp on hitting 100k
Same to Joost on hitting 4m, astounding
==========================================
Dave A, good idea buying a 'rekord player' to record all those old tunes. I used to have one that my great great grandfather left me as a family heirloom, called a Linn or something, lost to the car boot sale in the sky. Indeed I still have some 'lp's' around somewhere so and I've been meaning to convert them so I listen to them again for decades. The problem now is I'm not sure where they are! How will I ever find them? Ahh, just follow the smell of aged bakelite.
[Aug 2, 2005 1:28:07 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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[Aug 2, 2005 8:17:54 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: hugshugs MyOnlineTeam Welcomes Our latest Member hugs hugs

watchout!!! Your crunchometer is in the RED !!!

your wellcome layout for new members is very informative - I like it!
[Aug 2, 2005 8:20:45 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: hugshugs MyOnlineTeam Welcomes Our latest Member hugs hugs

watchout!!! Your crunchometer is in the RED !!!

your wellcome layout for new members is very informative - I like it!

smile Good morning Robert
I hope you are well
biggrin I see your enthusiasm for posting proceeds you
smile With regards to the Member Intro, I try to cover all the bases
[Aug 2, 2005 8:27:20 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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I think I have a 205 "overall" rig so the ceiling isn't 200.....I agree with mousie that it is probably 300.


Not the SCORE is limited, the POINT REWARD is! The rules say something weird about this limitation -- cited from http://www.worldcommunitygrid.org/help/viewTopic.do?shortName=points#22 :

While any individual parameter can overachieve the corresponding parameter for World Community Grid Comparison Device by any level, no work unit completed by any machine will earn more than twice the total number of points World Community Grid Comparison Device would earn for that same work unit.


If the second half in this sentence is correct this means that a computer faster than the reference machine gets more points for the same work unit than a slower machine -- WHICH DID THE SAME WORK (only slower). This is strange (and most probably a typo).

I would think that each work unit gives about the same amount of points on each and every machine, no matter how fast it is. A faster computer can just do more of them per time. As you don't know how fast the reference machine (RM) would have done the work, you have to estimate. The four scores and the time used for the work unit are combined and weighted into a point value. This is described at the link above. In the CPU score description you clearly see that the speed is compared to the RM and then multiplied by the run time of the work unit completed. This clearly shows that for a given work unit the CPU value is the same for each and every machine, no matter how fast. Double the speed and you slice the time needed in half -- the multilication gives the same value all the time. All other scores are also multiplied by the run time so the cited sentence must be wrong. It's not that a PC twice as fast as the RM gets twice the points PER WORK UNIT, it simply must be twice the points PER TIME. And the limitation must be a limitation to points per time as well. The described limitation is not conform with the point calculation formulas and also would be highly unfair as it would also mean that a machine 10 times as slow as the RM would get only 10% of the points per work unit for the same (only slower) computational effort.

I think the sentence should read:

While any individual parameter can overachieve the corresponding parameter for World Community Grid Comparison Device by any level, no work unit completed by any machine will earn more than twice the total number of points World Community Grid Comparison Device would earn for running the same time.


Best, Stefan.
[Aug 2, 2005 9:01:56 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Hi DAJ,


The other thing I have been trying to understand is if it is better to buy a few screamers or buy really low end machines.


You're buying machines dedicated to WCG? Cool cool

Honestly, I think cheap machines would win hands down. Why? Because the client is low footprint and so cheapo mainboard architecture is not punished very hard. This is a mere crunching job so all that counts is CPU cycles. If you need a fast high end server or video workstation then bus speeds, I/O performance and chipset qualities are your main target -- you can even use a slower CPU with more cache, it might easily outperform the one with more speed and less cache when you're looking at overall performance.

Crunching, cracking, benchmarks and other specialized tasks can be done faster on a couple of cheap machines than on a large monolithic power machine. That's why crunching supercomputers (chess machines, climate prediction etc.) for computational tasks nowadays are more and more built from clusters of cheap standard machines than built as a traditional supercomputers.

But then do it right -- don't buy complete PCs -- build a ventilated rack and install bare cheapo mainboards (no cards, video and HD controller onboard) that boot from a single network drive. Build a crunching farm like CompuDude (only cheaper as you don't need the fast I/O of rendering farms). Also reduces your heating costs (but your power consumption might be a bit higher wink )


Best, Stefan.
[Aug 2, 2005 9:37:23 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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But then do it right -- don't buy complete PCs -- build a ventilated rack and install bare cheapo mainboards (no cards, video and HD controller onboard) that boot from a single network drive. Build a crunching farm like CompuDude (only cheaper as you don't need the fast I/O of rendering farms). Also reduces your heating costs (but your power consumption might be a bit higher wink )


Best, Stefan.


This sounds interesting. Anyone have any idea how you would go about building such a 'rack'?
[Aug 2, 2005 9:45:01 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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