For those of you who think it is easy to cheat at Seti Classic

Message boards : Number crunching : For those of you who think it is easy to cheat at Seti Classic
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Profile ksnash

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Message 140606 - Posted: 22 Jul 2005, 2:51:08 UTC

Let's just say you take three numbers:
Number of work units.
Cpu time
(Machine type)Average unit Time

Average work unit time individual=CPU Time/Number of work units

Chance person cheats=1-Individual Avg WU time/Average WU Time
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Profile mikey
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Message 140612 - Posted: 22 Jul 2005, 2:54:18 UTC - in response to Message 140606.  

Let's just say you take three numbers:
Number of work units.
Cpu time
(Machine type)Average unit Time

Average work unit time individual=CPU Time/Number of work units

Chance person cheats=1-Individual Avg WU time/Average WU Time

I am dense sometimes..are you saying it IS easy to cheat under Classic or is NOT easy to cheat under Classic?

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Message 140658 - Posted: 22 Jul 2005, 4:23:51 UTC - in response to Message 140612.  

Let's just say you take three numbers:
Number of work units.
Cpu time
(Machine type)Average unit Time

Average work unit time individual=CPU Time/Number of work units

Chance person cheats=1-Individual Avg WU time/Average WU Time

I am dense sometimes..are you saying it IS easy to cheat under Classic or is NOT easy to cheat under Classic?


It was said it was easy to cheat by just crunching LAR wu's.
Well if their average time was 30 minutes when the average time for their type computer is 2 hours 30 minutes.

1-1/5=.8 You could probably state that there was more than an 80% chance they are skimming their work units.

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Message 140824 - Posted: 22 Jul 2005, 13:21:16 UTC - in response to Message 140658.  

Let's just say you take three numbers:
Number of work units.
Cpu time
(Machine type)Average unit Time
Average work unit time individual=CPU Time/Number of work units
Chance person cheats=1-Individual Avg WU time/Average WU Time

I am dense sometimes..are you saying it IS easy to cheat under Classic or is NOT easy to cheat under Classic?

It was said it was easy to cheat by just crunching LAR wu's.
Well if their average time was 30 minutes when the average time for their type computer is 2 hours 30 minutes.
1-1/5=.8 You could probably state that there was more than an 80% chance they are skimming their work units.

Okay but there is at least one more way people in Classic cheated...they would crunch a unit, any unit, to around 90% or so, then just before it finished, stop crunching and copy the whole directory to another place on the hard drive, come back and finish the unit. Then copy that directory back into the Seti directory, overwriting it with the unit that was crunched to the 90% or so, then finish the SAME unit again and again and again and again and, and, and, and, etc. The ONLY way to catch them would be for someone at Berkeley to notice that their time to finish a work unit had SUDDENLY dropped by a HUGE amount. But even then if they had upgraded their computer to a new SUPER FAST computer it would be VERY hard to prove. Berkeley would have to grab each workunit returned and analyze it for it name and then compare it against the next unit processed. IF the person were smart they would have a handfull of units that they could then return that way and without some investigation and concerted effort on the Berkeley personell it would be difficult to prove.
FOR THE RECORD let me state here and now I HAVE NEVER CHEATED AND NEVER WILL!!!!
I just KNOW that people have and some of the ways it could have been done.

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Message boards : Number crunching : For those of you who think it is easy to cheat at Seti Classic


 
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