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How much would a dual AMD mobo speed up Seti?

C

Civic2oo1x

Senior member
I'm running a 1.4ghz 266fsb T-Bird with 1024 MB ram. Thinking about getting the Tyan Tiger MP and running two Athlon XP+1600's or 1700's with 512 MB DDRAM. Would this setup speed up my seti times significantly?
 
Upgrading from a t-bird to an XP alone will speed up your times even with equal clock speeds. Of course then running a dual setup will double your WUs/day from a single XP system. I would expect each processor will crank out a WU in a little over 4 hours so about 12/day.
 
Looks like the upgrade will be worth it then. Thanks for the input. Look for me to add a dual XP setup in a few weeks.
 
You might want to ask IsOs about motherboards and such for that system he has been doing some experimenting with a couple different setups if I rememeber right.
 
You should be able to tell each client which CPU to use; that is one of the switches available for the command line version. Both instances could have their own processor.
 
The one little difference that you might see is that running 2 processes simultaneously with anything other than a large cache CPU (ie., Xeon), will mean that the time/WU on each will be a bit longer than if you ran only 1 process on the dual. That's because the cache isn't big enough to hold the program, although 3.03 was created to swap ~200K-sized pieces of the program in and out of 256K-size caches. Thus running 2 means some fighting over the use of the slower RAM.

Still, I'll take me a dually anything, any day! 😀
 


<< I'm running a 1.4ghz 266fsb T-Bird with 1024 MB ram. Thinking about getting the Tyan Tiger MP and running two Athlon XP+1600's or 1700's with 512 MB DDRAM. Would this setup speed up my seti times significantly? >>




I just set up almost that exact same configuration, and am finally d/loading wu's now that Berkeley is back up, I will gladly report back as to how many wu's this bad boy cranks out per day 😀
 


<< I'm running a 1.4ghz 266fsb T-Bird with 1024 MB ram. Thinking about getting the Tyan Tiger MP and running two Athlon XP+1600's or 1700's with 512 MB DDRAM. Would this setup speed up my seti times significantly? >>



I just uploaded my first wu on the dual.. it completed in 3 hours and 40 minutes
 
Sweet time! 🙂

What's the cpu? 1600+ or 1700+? And the Tyan doesn't do o/c does it?

I'm about to build my dual AMD, was going to get the ASUS A7M266-D but will hold off until the new Epox comes out to do some comparisons and let the ASUS "rev" up a bit 🙂

Also thought about waiting for the .13u die chips to come out but that's another 2 months, probably, and they'll be $$ so I'll go for the 1800+ for now (decent prices on those at places like newegg)
 
I'll go for the 1800+ for now (decent prices on those at places like newegg)

Oh no!!! :Q

Don't make me go over to newegg and start shopping!! I have a Duron 700@954 that could suddenly pop out of the socket and get replaced by one of those!!! 😛

 
The lag effect of having two processors running Seti at the same time should be dimished on the Athlons since each proc has an independent point to point bus to the memory. That is one of the big advantages of dual athlons over dual Intels.
 


<< Oh no!!! :Q

Don't make me go over to newegg and start shopping!! I have a Duron 700@954 that could suddenly pop out of the socket and get replaced by one of those!!! 😛 >>



/me stuffs a note under Poof's door with this written on it 😀

I just wish they'd drop prices on older Intel PIIIs (933 is still $137 retail! XP1800+ is only $23 more!) :frown: (I have 3 Gateway servers just begging for a 2nd processor!)
 
Taken from Asus' website
The A7M266-D leverages the technology of the AMD 760MPXTM chipset to take advantage of the enhanced performance of dual AthlonTM MP processors. The A7M266-D supports up to two AthlonTM MP processors, or single AthlonTM XP/AthlonTM socket A processor.

Does that mean that two Athlon 1800+'s won't work? What about in the Tyan board?
 
Civic,

The XPs are working fine in dual-cpu mobos. There was a scare with an early version of, I believe, an MSI board that did not support XPs. But, checking the hardware fora here and reading thru 2cpu.com and tomshardware and there are plenty of people using XPs just fine in dual proc boards. The MPs will probably run better and get better tech support but at their price premium right now? Not me.
 


<< I'm running a 1.4ghz 266fsb T-Bird with 1024 MB ram. Thinking about getting the Tyan Tiger MP and running two Athlon XP+1600's or 1700's with 512 MB DDRAM. Would this setup speed up my seti times significantly? >>



As you can see by the sig that's basically the same system that I'm running. w/u time is about 4:20-:30 so it will definitely put out a large number per day (roundabouts 10). All in all, I'm very happy w the system.

I think you get the best price break right now on the 1900+'s although I haven't checked recently. Might want to consider throwing up a few extra dollars and getting those vs the 1600+'s. If not, let me know and I'll give you a fair price on mine and I'll pick up a pair of 1900's. 🙂
 
/me stuffs a note under Poof's door with this written on it 😀

:Q

NOOOOOOoooooooooooooooooo!!!!!! 😛

And Crazee -

The lag effect of having two processors running Seti at the same time should be dimished on the Athlons since each proc has an independent point to point bus to the memory. That is one of the big advantages of dual athlons over dual Intels.

That only applies to the non-Xeon Intel CPUs (ie., the contention, etc.). Xeons of the same speed will still outperform the AMDs with SETI in dual configuration - mainly because of the lack of a large cache on the current crop of T-birds and their progeny. I had read some time ago that plans were in the works for some "server" type AMDs soon.

Of course, for the price of a single, high MHz Xeon, you could probably build a nice Athlon system. 😉
 


<< Of course, for the price of a single, high MHz Xeon, you could probably build a nice Athlon system. 😉 >>

Or a few! j/k 😉😉
 
Hey! I like my dual p2-400 Xeon system.. especially since each CPU has 2 Megs of L2 cache! :Q 😀 Doing under 9hrs/WU with each of those. 😉

As for dual XPs - no problems encountered - I've got a dual XP1700+ system cranking right here using the Tyan TigerMP board(v1.03) and no problems at all. 🙂

Edit: The one thing you may find though is that, depending on the board, your overclocking options on the single CPU boards will be much greater - on dual CPU boards, over-clocking options are rather limited. 🙁

 


<< Sweet time! 🙂 What's the cpu? 1600+ or 1700+? And the Tyan doesn't do o/c does it? I'm about to build my dual AMD, was going to get the ASUS A7M266-D but will hold off until the new Epox comes out to do some comparisons and let the ASUS "rev" up a bit 🙂 >>



Same here! I can't wait to the Epox board comes out and see the comparsions! 😀

/me wipes the drool off the keyboard
 
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