Stuck at Update_Core F@H Help?

**Ashley766**

A couple days ago my CPUs we're running fine until out of nowhere I had 1 CPU running... I uninstalled the client and reinstalled it and now all my WUs are stuck at Update_core and none of them are running. Is there a way to make the core update manually because I heard that it does it automatically? Thanks

**Stxtics** · 5th June 2018, 3:47 PM

Weird, I've never seen that message before.

I would say try uninstalling and reinstalling but it seems that hasn't worked. Maybe delete the WU if it has downloaded and let it get a new WU. The WU should be located in your program files where F@H is

**Ashley766** · 5th June 2018, 6:34 PM

Do you think it might have something to do with my core? I have an i3-7100U. Maybe I need to upgrade it?

**Stxtics** · 6th June 2018, 1:02 PM

That's your processor, if F@H used to work then that shouldn't be an issue, plus I believe all CPUs can fold with F@H.

**bls1999** · 6th June 2018, 6:54 PM

(6th June 2018, 1:02 PM)Stxtics Wrote: That's your processor, if F@H used to work then that shouldn't be an issue, plus I believe all CPUs can fold with F@H.

I thought Intel can't fold, although that could've been changed. It also wouldn't explain why it worked in the first place.

**Ashley766** · 17th June 2018, 7:14 PM

Well, not really sure what happened, but it all started working again when I relaunched it today! Thanks

**Fresh Cookies** · 18th June 2018, 2:48 PM

(6th June 2018, 6:54 PM)bls1999 Wrote: I thought Intel can't fold, although that could've been changed. It also wouldn't explain why it worked in the first place.

I've folded with Intel in the past, though it's been a hot minute.

**Legend** · 18th June 2018, 8:26 PM

You should only use 1 folding slot in your client for your processor. You're not doing yourself any favors by having more.

**Ashley766** · 18th June 2018, 9:03 PM

(18th June 2018, 8:26 PM)Legend Wrote: You should only use 1 folding slot in your client for your processor. You're not doing yourself any favors by having more.

I have more than 1 because each CPU gives me a different amount of PPD, thus I have many CPU slots.

**Legend** · 18th June 2018, 10:57 PM

(18th June 2018, 9:03 PM)Ashley766 Wrote: I have more than 1 because each CPU gives me a different amount of PPD, thus I have many CPU slots.

It doesn't work like that. All you're doing is splitting the same workload between different slots. PPD scales exponentially so you would get better PPD with 1 slot utilizing all of the cores rather than a split setup like you have going on.

**Legend** · 19th June 2018, 12:00 AM

I replicated your setup on my PC and as I suspected having multiple CPU slots on 1 chip negatively impacts PPD.

[Image: jpucGZs.png]

In the first screenshot I set up 2 clients on 6700k with 4 threads each. Each client was earning 11k and 12k respectively for a total of 23k PPD.

[Image: YjgTbhW.png]

In this screenshot I set up 1 client with all 8 threads pulling 31k PPD. Notice that the timeframe for each 1% of the work unit was halved, but the PPD was 35% more than the previous setup. This is because of the exponential PPD scale that F@H utilizes.