Folding PPD Drops when it turns green

[Cody_Irwin]

So I have nothing running sept google chrome just on a webpage, and like cpuz and temp monitors ect. on when folding. Today I been realizing on a 6900 bigadv, My ppd drops around 10-20k PPD once it turns green on gpu tracker, with only folding the cpu not my gpu's.

Nothing else running taking any performance drops to it either running on windows.

I have 45,500ppd when I restart it and stable for 2% but when it hits 3% done after restarting it starts drastically dropping. Is there anyway to fix this?

I set my affinity always to above normal or high, could this be the cause?? cause I do this for when Im gaming when folding some times so windows makes folding priority over gaming ect.

Thanks guys for the help. I just dont know why :-\

[xeromist]

The reason it doesn't turn green until 3% is that the calculation is unreliable with only 2 data points. Your PPD does not change, just the accuracy of the calculation. Most likely the 2nd number is closest to your real PPD. If you want to confirm whether it is right or wrong you will need to check EOC to see actual points posted. I suppose I should add that it's not perfect at 3 data points either. PPD varies between WU's and with other workloads so the estimate is only as good as the last 3 data points.

[Cody_Irwin]

Well xero to tell you the truth, PPD does not drop by 25k after it turns green, Ive gotten around erm 25% or more done since I made the post, and its still sitting at 42k ppd, By keeping set affinity at low, Ive maintained this ppd, but it doesnt add up yet for me if this is the problem. Also, on the gpu tracker, ur EOC stabalizes with ur PPD, meaning if you have high ppd at the start its going to mess with ur EOC regardless. But for it to drop like I said by 25k PPD Is just unbearable... Meaning something is messed up period. But if I keep it like this Ill post back to see if setting affinity anything above low for some reason effects it to go down even though it should be going up...lol

[xeromist]

Also, on the gpu tracker, ur EOC stabalizes with ur PPD, meaning if you have high ppd at the start its going to mess with ur EOC regardless. I'm not sure exactly what you mean by this, but EOC does not get any stats from your GPU tracker. EOC gets their data directly from Stanford so it is based entirely on what you actually turn in. Local applications estimating PPD can be way off and they won't mess with EOC stats.


But for it to drop like I said by 25k PPD Is just unbearable... Meaning something is messed up period. But if I keep it like this Ill post back to see if setting affinity anything above low for some reason effects it to go down even though it should be going up...lol

If you can see real gains on EOC after altering your affinity that may be a sign that something else is monopolizing one or more of your cores that are somehow also assigned to F@H. Normally affinity should be off for SMP because it divides up the work among all available cores. But since you say affinity low, do you mean priority? Affinity sets specific cores, priority tells the CPU scheduler how to prioritize applications and threads.

If you do mean priority then sometimes it should be changed when you need to do something like GPU folding where having a lower CPU priority can actually result in more GPU PPD and a net increase.

Also, I can give an example of what I said above about other workloads. If I have folding running on my PC while idle I will get a relatively stable PPD estimate. If I fire up a game and play for a while, when I exit the PPD estimate will have plummeted. The actual PPD for that WU will be somewhere in the middle of the two estimates. I won't get the first estimate because I did slow F@H down while I was playing but I also won't get the second estimate because it is only using the last 3% to make a worst case estimate. That's why you really can't rely on local estimates for anything. If one thing runs and takes up your CPU for a short while it will throw the whole estimate off.

[Ferosin]

It would help if you listed your TPF, cpu, motherboard, how many cores your are folding with, gpus if any and what your workload is while folding.

What tracker are you using to estimate PPD? If its HFM are you calculating ppd base on the last frame, last 3 frames, all frames or effective rate.

Just to clarify your saying that your ppd goes from ~45k to ~20K after finishing only 3% of a WU. Or are you stopping your client then starting it up again later, or finishing a gaming session and noticing the drop after an additional 3 frames have completed?

Whats your team/folding name as I do not see anyone that is consistently dropping a bigadv WU for ASUS ROG.

[xeromist]

Whats your team/folding name as I do not see anyone that is consistently dropping a bigadv WU for ASUS ROG.

I know I am at least.

[Ferosin]

Whoops sorry Xero i just looked over the user list last night didn't dig into the stats too much. Jmorenojr is another folder i missed didn't mean anything negative by my post :)

[Cody_Irwin]

I have already found out the problem, when putting the priority anything over the lowest setting ur PPD drops for some reason. Its stupid... btw I use gpu tracker for folding Big Adv's. with a 2600k

[xeromist]

Whoops sorry Xero i just looked over the user list last night didn't dig into the stats too much. Jmorenojr is another folder i missed didn't mean anything negative by my post :)

Heh, I don't care because folding is folding. It doesn't matter whether it's bigadv or not. :) I just figured you might want to know that whatever you were using to make that assessment was giving you an incorrect result.

[Ferosin]

I just browsed over the team list trying to find him, so it wasnt exactly an accurate search. The team i just switched from for a bit has the user name and folding name the same. All my rigs are switched over now so should be dropping more ppd soon