Hyperthreading

deicist

I've just realised all the machines at work I'll be installing F@H on are hyper-threading capable. So, two questions.... how do I install 2 instances of F@H, and will I see a noticable increase in folding performance by doing this? Or would I be better leaving just one instance running and turning hyperthreading off?

Edit: Okay, answered the first question, figured out how to install multiple instances..... just need to know if it's worth doing now

dragonV8

Hyperthreading will give you more PPD, though NOT double the amount. All our computers with HT are enabled and run 2 instances. 1 x console and 1 x GUI.

There are some people here with more ideas on how much gain there is with it enabled. From what i have read, it's about 1.4, NOT 2.0 times the amount.

Sally has a P4 3.2 notebook that runs a single instance. This is quicker than the 2 instances on a 3.2 desktop with HT. However.......when the HT puter finishes it's 2 WU's, the notebook is still only part-way through the 2nd WU.

Hope this makes sense as i flew in from work today and have been awake for 29+ hours.

For those in the know, if my assumptions are incorrect, please enlighten me.

Jon

t1rhino

If you do not want people messing around with it, I would suggest 2 console versions installed as services. You will benefit from the HT, how much depends on the WUs you get.

deicist

Okay, cheers guys, hopefully my production should take off over the next few weeks

dragonV8

Deicist, Sally got a P1310 on her notebook and now has a P1310 on a 3.2 HT machine.

The notebook is doing it in 38hrs 6min as a single instance, the HT is doing it in 48hrs 11min.

Both have 2x256 PC3200 ram. The HT has a Cheap Asus mobo and stock cooling.

Since the HT is doing 2 WU's, it's well in front. Just don't know the % advantage.