f@h dual core questions

Humboldt · Post by **Humboldt** » Sun Dec 19, 2010 10:37 pm

I know you can set up dual core processors to run 2 different instances of f@h.

Just upgraded from a single core 1.8 GHz to a dual 3.0 GHz.

What's the difference between setting up 2 instances of the regular client, or running the SMP client?

Thanks

Humboldt · Post by **Humboldt** » Sun Dec 19, 2010 10:40 pm

Stanford does say about the SMP client :

We strongly suggest people run this client on 4-core boxes. While it will run on 2-core boxes, we have noticed some potential problems (we are looking into these issues now).

Thanks

YARDofSTUF · Post by **YARDofSTUF** » Sun Dec 19, 2010 11:09 pm

I haven't run any F@H stuff for a while but the SMP client has always been problematic on dual core/Hyperthreaded CPUs.

EDIT: Not sure if you have a Dual core or a Single core with Hyperthreading, but if its the Single core then except the hyperthreaded core to be much slower at folding than your real core.

If you have a dual core CPU w/ hyperthreading you should have 4 separate boxes in the task manager performance section if I remember right.

Humboldt · Post by **Humboldt** » Sun Dec 19, 2010 11:28 pm

YARDofSTUF wrote:I haven't run any F@H stuff for a while but the SMP client has always been problematic on dual core/Hyperthreaded CPUs.

EDIT: Not sure if you have a Dual core or a Single core with Hyperthreading, but if its the Single core then except the hyperthreaded core to be much slower at folding than your real core.

If you have a dual core CPU w/ hyperthreading you should have 4 separate boxes in the task manager performance section if I remember right.

How can I tell, sort of pulling the fan and heat sink off to look at the processor?

YARDofSTUF · Post by **YARDofSTUF** » Sun Dec 19, 2010 11:36 pm

http://www.piriform.com/speccy

What does speccy say for your "Cores", "Threads", and the "Specification" info?

(Yay 2 speccy posts in 2 days!)

Humboldt · Post by **Humboldt** » Tue Dec 21, 2010 10:39 pm

YARDofSTUF wrote:http://www.piriform.com/speccy

What does speccy say for your "Cores", "Threads", and the "Specification" info?

(Yay 2 speccy posts in 2 days!)

Huh, so I was wrong, it's a single core w/ HT.

Intel(R) Pentium(R) 4 CPU 3.00GHz
Prescott

Speccy look good, thanks for the tip...easier tho read than Belarc

Humboldt · Post by **Humboldt** » Wed Dec 22, 2010 12:30 am

Lots of cool features, although it does read one of my internal hdds running at over 100C.

YARDofSTUF · Post by **YARDofSTUF** » Wed Dec 22, 2010 2:03 am

Hah, 100C has to be wrong. Maybe try flipping to F and back to C.

So a 3ghz w/HT, you should definitely run the single core client, you can run 2 instances. The 2nd one will be much slower though.

Humboldt · Post by **Humboldt** » Wed Dec 22, 2010 1:03 pm

got it, thanks