Is it worth it to use HT for folding?

[GigaHertzAddict]

I just upgraded my work PC from a Celeron 2.8 256k to a Pentium 4 640 2MB and I was wondering if using HT was really worth it. When folding two instances the completion time for both almost doubles.. How many of you guys are using HT?

[Shelnutt2]

For science, no.

For points yes.

You end up getting about a 25% boast in ppd running two instances.

[benbaked]

There is a member here who is running the SMP client on a 2M Prescott with HT, I think his frame times were around 50 mpf, so by that it should be completing units within the deadline. If it does indeed work you might give the SMP client a try.

[pscout]

It depends a lot on the wu ... only some will give you up to 25%.

To me it is worth going for higher ppd if the science is not unduly inmpacted ... which translates to if the wu doesn't take significantly longer to fold.

Its a judgement call each of us has to make ...for example 10% more points and a doubling of the elasped time is not worth it to me. 15% more ppd vs 50% increased in elapsed time ... etc.
In addition, the wu mix changes over time, and in some cases 2 clients could actually reduce your ppd.

Other factors that might weigh in on your decision, is the slighly lower usablility of your ht rig with 2 clients running depending on what other apps you run, somewhat higher power consumption and heat production.

Those are the main factors, you need to consider to pick the right balance for you.

Not always a simple answer :shrug:

[jerseytomato]

Recently, I tried having my P4 prescott (@3.44Ghz) do some SMP units: 2651's and 2652. They are finishing within the 3 day deadline.
Doing 2651 at about 40.5min/frame and 2652 at about 32.5min/frame. They're giving maybe 45% more PPD than regular WU's. However, it has not caught any 2610's yet so not sure on that.
I'm gonna switch it back to regular WU's seeing that 2608's and 2609's are now added into the mix.