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PPD VS, credit.

Posted: Mon May 22, 2017 4:47 pm
by chabgood
I have been folding for a while now. Since getting my 1070, I have been paying more attention to the log and such. So sometimes I get 570K PPD but the credit is 80K or 120K or so, then I get a work unit that is 470K PPD that takes 47 secs per iteration only giving 40K of credit. Is the 570K PPD only if it doe that all day long?

Re: PPD VS, credit.

Posted: Mon May 22, 2017 5:33 pm
by 7im
Think of PPD like MPH, or KPH. At 75 KPH, you have to drive for an hour to go 75 Kilometers.

Hey, why didn't we ever convert times and dates to the Metric system? :evil:

Re: PPD VS, credit.

Posted: Mon May 22, 2017 5:49 pm
by JimboPalmer
PPD is Points Per Day, so yes, it is continuous folding. If you do not fold 24/7, you get a much lower points value, as the researchers value a quick return of results. (they can't assign a new wave of Work Units until all the old ones come back, so even a few slow results slow their entire research)

The 1070 is going to complete multiple WUs each day, in theory the sum of those will be your PPD. (is it doing about 6 a day?)

Re: PPD VS, credit.

Posted: Mon May 22, 2017 8:04 pm
by JimboPalmer
7im wrote:Hey, why didn't we ever convert times and dates to the Metric system? :evil:
Changing earth's orbit to revolve around the sun every 100 days is a ecological disaster just waiting to happen. 1000 days is worse. Do NOT encourage the politicians!

Hours are more arbitrary, we could redefine them anytime we were willing to rewrite every constant that uses time as a parameter. 100 hours per day of 100 minutes and 100 seconds, just destroys every constant you have memorized, it is not like we have to slow earth's rotation, that would spill oceans onto land and erupt volcanoes.

Re: PPD VS, credit.

Posted: Mon May 22, 2017 9:58 pm
by ComputerGenie
chabgood wrote:I have been folding for a while now. Since getting my 1070, I have been paying more attention to the log and such. So sometimes I get 570K PPD but the credit is 80K or 120K or so, then I get a work unit that is 470K PPD that takes 47 secs per iteration only giving 40K of credit. Is the 570K PPD only if it doe that all day long?
If your Estimated PPD in the app was 570K while working on a specific WU and the credit for that WU was 40K, it means that if you only worked on that specific WU and repeated your work 14.25 times per day (570/40), then you would get exactly 2,280,000 Points at the end of 96 hours (4 days). 8-)

Re: PPD VS, credit.

Posted: Tue May 23, 2017 1:09 pm
by foldy
The credit also depends on how long the ETA is, e.g. it takes one hour to complete a 40k credit work unit but 2 hours to complete a 80k credit work unit. If you fold 24h this adds up to 570k PPD.