How many wu's can each cpu type do?

rootaxs

Platinum Member
Oct 22, 2000
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My P3-600 system does around 1 wu every 6 hours and my K6-3/450 does one every 20 hours. I have a Celery 500 but it's not doing SETI. Can anyone tell me how many wu's each P3/Celeron/Athlon/Duron can do? I'm thinking of building a fleet of crackers here @ home. They're prob'ly gonna be headless PC's running on Term.

Any info. appreciated :)
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
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this is a sticky question, as seti is somewhat front side bus dependent, though the v3 client isn't as bad as the v2. of course, the new 3.03 client is a bit of an unknown quantity. actually, i think the only change is the amount of science done, so it should be as FSB dependent as the 3. anyway, p3s seem to be the best, but after a point adding MHz gets diminishing returns. athlons need about 10 or 20% more MHz to finish in the same time, though they have a much higher FSB. this is probably due to optimizations in the client for p3 type processors, as well as a better memory controller on the BX and i815 chipsets than what is available on the athlon side of things. because of the FSB dependence, celerons running at the stock 66MHz are pretty slow. also, with the new celerons intel delayed the cache a bit so that they can be slower than a lower clocked older celeron, though this also has diminished with the v3 client. ddr ram for the athlon should change the equation though, since a slightly worse memory controller should be offset by the 90% gain in memory bandwidth. example, it takes 1100+ athlons to equal GHz p3s that have memory buses running at 140+


EDIT: see my post in the bang for the buck thread
 

JWMiddleton

Diamond Member
Aug 10, 2000
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Hi rootaxs, Welcome to the TeAm!! :):D

Which version of S@H are you running?

See the link in my sig for times on my various systems.
 

cory

Senior member
Jun 3, 2000
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i have found that 3.03 takes almost twice as long to
finish wu on both pent 3 and athlon cpus.

takes about 8 hours on a 1.1 tbird
 

Jalapeno

Senior member
Dec 26, 2000
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I understand earlier versions (prior to 3.03) process WUs much faster. Is there any way to "downgrade" to, say version 3.0 in order to improve speed?

Does anybody still have one of those older ones I could download?

Thanks!
 

rootaxs

Platinum Member
Oct 22, 2000
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Thanks for all the tips, comments and welcome :)

I think i'll try getting a couple of Duron 700 and OC it to a gig (if it stabilizes).. guess that's the most bang/buck i can get for headless pc's.

 

Assimilator1

Elite Member
Nov 4, 1999
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I think most of us still have v3.0!lol ,I'll Email it to you if noone provides a site link for it
 

rootaxs

Platinum Member
Oct 22, 2000
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JW, my P3-600 machine (at work) is using 3.03 i think. The one i have at home is 1.06 LOL! Unfortunately my K6-3 keeps locking up after only several minutes of doing SETI... got any ideas why it's doing that? Overheating perhaps?
 

Assimilator1

Elite Member
Nov 4, 1999
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V3.0 is on its way:)

BTW ref v1.06 ,man thats almost a muesem piece! ;) ,I think SETI are blocking that 1 now.
Ref K6-3 ,does sound like it's overheating ,have you tried running it with the case off as a test?

BTW what's your SETI name?
 

rootaxs

Platinum Member
Oct 22, 2000
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Not so sure about the blocking.. it still seems to process w/u every now and then. Could just be me tho hmm... good point u have there alright since it happened to me at work.

Btw, my K6-3 system has the case off all the time.. i'm thinking it could also be coz there's only one fan on the thing (oem cpu fan) and it's sitting pretty close to a voodoo vidcard. I was looking at getting an 80mm Antec fan ... would that help?

All my wu's are currently with a different team but i'm thinking of starting all over here at TeamAT. username is alphaone :)

 

Viztech

Platinum Member
Oct 9, 1999
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Those K6s sure can run hot, can't they? I have had good success with the GlobalWin CPM25603-32. It's big enough too cool well, but not too big to not fit in most situations. Russ at compucheap.com has them for $13.95 so they are not too pricey either.

I had a K6-2 450 that was real buggy, locking up quite often. I underclocked it for a while, then finally settled on increasing the core voltage by .1 or .2 volts at the stock clock speed. This helped tremendously.

As far as your WU times, K6s really suck at SETI as evidenced by your posted times. I have quite a number of machines doing various DC projects, namely SETI, RC5 and OGR. All my K6s do OGR because they are much more efficient at it. My P2-400 does SETI for the same reason. 100mhz+ P2s and the various P3s are the best SETI machines. (Xeons and others excluded) My Celerons, Athlons and 66mhz FSB P2s do whatever meets my needs at the time.

For comparison, I have a Celeron 2 566@935 110 FSB with PC133 CAS3 running at CAS2 with the 3.0 CLI client doing ~5.5 hours/WU. Assimilator's P3 posted above has 18% better times with a 12% slower machine than mine.

Best of luck getting that K6-3 stabilized and Welcome to TA!

viz
 

Assimilator1

Elite Member
Nov 4, 1999
24,152
517
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rootaxs

I would ditch v1.06 on that system if I were you & install GUI v3.0(or CLi is even better) it will also be much faster on your K6-3:),however that will also be blocked in the near future ,so watch out! (we all aree here);)

Another test for your cpu is to underclock it!:Q ,if it's OK at say 50MHz less than its default speed then its very likely you'll need better cooling.Or another way to test for heat problems is to disable the CPU L2 cache ,that will cut the heat output significantly ,don't expect it to run well though! ;).

Ref your WU's ,if you join our team with your current account your WU's will follow you (despite what the SETI site says!) ,and yeah you want to join us ;):D ,hehe ,if your team let you carry on running with v1.06 & a cpu that locks up ,their support can't be very good! ;):p

Viztech

For comparison, I have a Celeron 2 566@935 110 FSB with PC133 CAS3 running at CAS2 with the 3.0 CLI client doing ~5.5 hours/WU. Assimilator's P3 posted above has 18% better times with a 12% slower machine than mine.

That (plus better games FPS of course ;)) is why I saved up for a PIII & waited for a cheap 1 to come along :) ,BTW another stat that is interesting is that my FSB is 15% higher than your Cel2 ,very close to the 18% performance difference.