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World Community Grid Forums
Category: Retired Forums
Forum: The New Members Forum [Read Only]
Thread: Att: Rick Alther - Possible Discrepancy In Reporting Stats |
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Thread Status: Active Total posts in this thread: 5
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have just been doing a few calculations on my statistics and there seems to be a discrepancy
Example #1: Average Points per runtime hour = 32.22084 Multiply this figure by 24 hours and it will total 773.30 However my Average Points per Calendar Day is reported as 711.38000 A difference of 61.92 points Example #2: Average Points Per Result = 697.43137 Results Returned To Date = 51 Multiply 51 Results by 697.43127 = 35569 Which, is correct Example #3: Points Generated To Date = 35,569 Divide that by Total Run Time to Date = 45 Days 23 Hours 54 Minutes 46 Seconds And the result is 773.30 which is correct Is there a reporting error in the database software that is causing this discrepancy of 61.92 points in the section, Avg. Points Per Calendar Day? Regards |
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joatmon
Senior Cruncher Joined: Nov 17, 2004 Post Count: 185 Status: Offline Project Badges: 
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It could be that at some point in your crunching, maybe even only on the very first day, you did not have 24 runtime hours in a calendar day. I bet the perceived error is in the assumption that there are exactly 24 runtime hours in a calendar day for every calendar day you have been crunching
Using your numbers, if you had 35569 points points per calendar day = 711.38 35569/711.38 = 50 calendar days. So, somewhere in the last 50 calendar days, you have logged an actual 46 days of run time Your crunch up time of 45 days 23 hours 54 minutes 46 seconds (round to 46 days) over 50 calendar days gives you an efficiency rating of 92%. 92% of the time you have been signed up, your computer has been actively folding proteins. Did you lose any time to the bad workunit problem in November? Did you start crunching at exactly 0000GMT the first day? There is also some limited amouont of non-crunch time when the agent is packing up results, submitting them, and downloading a new work unit. Also, any time the agent is not actively crunching (shutdowns, reboots, agent turned off to play a game, stuff like that) will affect the runtime hours/calendar day ratio. |
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knreed
Former World Community Grid Tech Joined: Nov 8, 2004 Post Count: 4504 Status: Offline Project Badges: 
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I have just been doing a few calculations on my statistics and there seems to be a discrepancy Example #1: Average Points per runtime hour = 32.22084 Multiply this figure by 24 hours and it will total 773.30 However my Average Points per Calendar Day is reported as 711.38000 A difference of 61.92 points Example #2: Average Points Per Result = 697.43137 Results Returned To Date = 51 Multiply 51 Results by 697.43127 = 35569 Which, is correct Example #3: Points Generated To Date = 35,569 Divide that by Total Run Time to Date = 45 Days 23 Hours 54 Minutes 46 Seconds And the result is 773.30 which is correct Is there a reporting error in the database software that is causing this discrepancy of 61.92 points in the section, Avg. Points Per Calendar Day? Regards Graham, The difference that you noted in Example #1 is becuase Run Time * 24 hours is not the same thing as a Calendar Day. Run Time is the amount of time that an agent runs. If the agent runs on a computer that is only on for 2 hours a day (and you let the agent run the entire time), then you will only get 2 hours of Run Time per day for that agent. On the member page, Run Time is the sum of the Run Time contributed by all the agents running for that member. The number of Calendar Days is simply the number of days between today and the date you registered. Thus your example #1 comparing Average Points per runtime hour against the Average Points per Calendar Day isn't valid becuase Run Time * 24 hours does not equal a Calendar Day. There is an additional stat on your member page called Average Run Time per Calendar Day. This is the sum of the Run Time that all your agents have contributed to the World Community Grid divided by the number days between today and the date that you registered. Some members who have many devices contribute much more then 24 hours of Run Time per day. For example look at: http://www.worldcommunitygrid.org/stat/viewMemberInfo.do?userName=mkmeyers As of Jan 4, mkmeyers is contibuting over 57 days of Run Time each Calendar day. Thanks, knreed [Edit 1 times, last edit by knreed at Jan 4, 2005 4:13:53 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 Thank you knreed for pointing this out to meI understand now you have explained it in those terms You are very expediant these days Regards |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Wow... I do have a question, is it possible for you guys to post equations of all the overall score, points system, etc...? I would like to do some calculations on my own to make sure things are right here, and besides, I'm curious...
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