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Number crunching :
SETI-Classic credits conversion to SETI-BOINC credits
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Author | Message |
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JTA-23112 Send message Joined: 18 May 99 Posts: 30 Credit: 3,119,305 RAC: 0 |
When SETI-classic finally goes away and a final tabulation of SETI-classic workunits produced, why not do a one-time credit to SETI-BOINC accounts at a fixed conversion rate. For instance the 32.29 credits per workunit discussed (briefly, before being hijacked) in a previous thread ("Aha - Average seti ..."). Is this average credit per workunit accurate in all cases? Most likely not -- but it (or some intellectually argued substitute) should be good enough for a one-time conversion/crediting activity. This would allow those number conscious crunchers who are transitioning from SETI-classic to SETI-BOINC to be able to track their 'total contribution' from project inception. It would also prevent any need to continue the pointless (pointless because nothing is going to change) discussion of the BOINC crediting methodology. |
Benher Send message Joined: 25 Jul 99 Posts: 517 Credit: 465,152 RAC: 0 |
The 32.xx credits was sophistry ;) I'm the one who presented it. It depended on believing several unproven concepts... A. the hypothetical "cobblestone" machine which has benchmark scores of 1000 float whetstone and 1000 Int Dhrystone. B. That the whetstone benchmark really computes how many Float operations a system can do per second. C. That each seti WU really has the 27.9 x 10^12 Floating point operations. (Actually the reference_work_unit.sah included with the source uses approx 5.78 x 10^12 FP operations to complete) Given you believe the above conditions, the math to compute 32.xx is straightforward. Cobblestone machine is granted 100 credits for 24 hours continuous computing. Cobblestone machine is granted 1 credit for every 864 seconds commputing. In 864 seconds cobblestone machine performs 864,000,000,000 FP operations. 27.9 x 10^12 divided by 864 x 10^9 is 32.29167. ...but you gotta believe !!! |
JTA-23112 Send message Joined: 18 May 99 Posts: 30 Credit: 3,119,305 RAC: 0 |
Why not believe - We have to believe in something! Once an approach is accepted to keep the 'counters' happy, we can proceed with BONIC and the science behind SETI. Of course there will be a period of discussion about what the conversion factor "should have been", but at least long-time SETI-Classic crunchers will get a reasonable amount of BOINC credit for past efforts. |
Pooh Bear 27 Send message Joined: 14 Jul 03 Posts: 3224 Credit: 4,603,826 RAC: 0 |
Then all the people who cheated on Classic will get rewarded for their cheating? I think this is not a good idea, even though it would boost me pretty nicely. I am happy with the way things are. My movie https://vimeo.com/manage/videos/502242 |
JTA-23112 Send message Joined: 18 May 99 Posts: 30 Credit: 3,119,305 RAC: 0 |
And the problem with rewarding the very, very SMALL number of cheaters while being fair to the very, very BIG number of honest crunchers is ....? |
Borgholio Send message Joined: 2 Aug 99 Posts: 654 Credit: 18,623,738 RAC: 45 |
> And the problem with rewarding the very, very SMALL number of cheaters while > being fair to the very, very BIG number of honest crunchers is ....? > Impossible to tell the difference. You will be assimilated...bunghole! |
Saenger Send message Joined: 3 Apr 99 Posts: 2452 Credit: 33,281 RAC: 0 |
> And the problem with rewarding the very, very SMALL number of cheaters while > being fair to the very, very BIG number of honest crunchers is ....? I've never crunched for Classic, so beat me if I state some obvious bulls*** ;) But.. Overclocking sometimes leads to invalid results. But also to a faster result production. This will show in Boinc, and excessive oc will be rewarded with less credit. I suppose there was no such thing as a validator @classic. So I think there are several unintentional cheaters through oc, who never even thought about being cheaters. How could they, if noone told them. But they have produced probably invalid results, where no credit is deserved. How to deal with this? Put the factor to 25? If you keep them in a seperate table, with a somehow valitate-results-percentage designed factor, will that satisfy the pioneers? I have no simple answer, but just granting them 32.something as a quick'n'dirty shot from the hip seems to be a bit preposterous to me. Gruesse vom Saenger For questions about Boinc look in the BOINC-Wiki |
JavaPersona Send message Joined: 4 Jun 99 Posts: 112 Credit: 471,529 RAC: 0 |
As an early adopter of SETI I can see where JTA is comming from. But since BOINC SETI is different enough from SETI Classic it does not seem appropriate to convert Classic units into BOINC units. We are able to see, in profiles, how many Classic units were completed. Although I have not done this, I am sure that there is a way to add to your sig to indicate how many classic units were completed. Your username on the message board indicates how long you have been working on SETI in general. To give BOINC credit where it was not earned is misleading IMHO. I guess whay I am saying is I "don't believe." |
shady Send message Joined: 2 Feb 03 Posts: 40 Credit: 2,640,527 RAC: 0 |
As boinc is a new infrasture for crunching seti (and many other projects) it makes perfect sense for everyone to start again with zero credits. The old classic totals, stats , ranks etc are likely to be made available indefinately anyway. Having said that it would not totaly suprise me if one of the many stats sites eventualy did a combined total of classic+ boinc , but you can bet there will be arguments over what ever conversion factor is used. Shady <img src='http://www.boincsynergy.com/images/stats/comb-1527.jpg'> |
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