Predictor Amd/Intel performance

[sir_LOIN]

I've only recently started crunching for Predictor, I noticed that like Einstein, it likes Amd alot. For example, my overclocked A64 2800 does units about 10 minutes faster on average than my overclocked P4c 2800... Seems to me that Intel only has a good advantage over Amd with Seti. On LHC they performed about the same and as for Climate Prediction well I don't really know about that one.

Maybe some of you guys that run multiple projects can confirm this.

[Hamm3r]

hmm were you crunching 2 Predictor WUs at the same time to take advantage of HT on that P4c or you ran only one at a time sir_Loin?

[sir_LOIN]

Well the A64 does a unit in about 28 minutes and the P4 2.8c in 76 minutes but because of hyperthreading it means that it does one in about 38 minutes. So there you have it more clearly, the A64 crunches 10 minutes faster. On such little work units as Predictor, it's a big difference!



I should've included this earlier, I don't know where my head is today!
I have two laptops, a Compaq with AMD 1500 and a Toshiba with Intel P4 1.7
The amd does a unit in 58 minutes and the intel in 72 minutes... Again, the AMD advantage is clear.

[Hamm3r]

Ok I see now thanks for the info.
I would too really like to see who is better performer in Climateprediction since I am saving some money right now for the new CPU and mobo. I think im gonna go with 630 P4 and Abit AS8.

[SunRedRX7]

Wish I could help with some A64 or Newer P4 numbers.

I'm humming along with Bartons and a northwood.

But in case you were wondering.
CLimate Prediction
P4 2.4C at 2.8 = ~667 hours for 2, or 333.5 hours for one.
Athlon Barton XP at 2.2ghz = ~485 hours

Predictor times with the same 2 PCs
P4 2.4C at 2.8 = 1.6 hours, or .8 hours for one.
Athlon Barton XP at 2.2ghz = .51 hours

I'm not running Einstein on my P4, because I'm pretty sure AMD wins there. I know I've read on their forums that P4s with HT disabled do better then P4s with HT on.

[Hamm3r]

Thanks SunRedRX7.
So P4 is indeed better in Climateprediction than XP and I think A64 wont be a whole lot better and since I intend to run Seti and Climateprediction on this comp ill go with P4.

[SunRedRX7]

Thanks to being switched to 3rd shift, I'm able to think better at night now and remember that all the projects should have a listing for times available from different computers.

Heres a list of the top computers running ClimatePrediction
http://climateapps2.oucs.ox.ac.uk/cpdnboinc/top_hosts.php


From there I was able to pull these results for a AuthenticAMD AMD Athlon(tm) 64 Processor 3000+
http://climateapps2.oucs.ox.ac.uk/cpdnboinc/results.php?hostid=21241
last result is around 529 hours, which continues to support the P4 for Climate.

Also when comparing results from different computers, try to use the more recent results since they put more calculations into the application.

[Hamm3r]

Thank you very much for the info Sun.
P4 will be here in about 2 or 3 weeks and Ill post results then.
The only problem is I wont have money for the new RAM so it will be on singlechannel for some time :(
Oh yea and my barton in sig will continue crunching caseles. :)

[sir_LOIN]

Thanx for the info SunRedRX7, I didn't really know wich was faster in climate prediction.