Message boards :
Number crunching :
How many credits is worth one workunit ???
Message board moderation
Author | Message |
---|---|
kikiman Send message Joined: 21 Jan 03 Posts: 2 Credit: 2,272 RAC: 0 |
because I'm still wondering and I can't figure it out. Sorry for my bad English :) |
Paul D. Buck Send message Joined: 19 Jul 00 Posts: 3898 Credit: 1,158,042 RAC: 0 |
> because I'm still wondering and I can't figure it out. > Sorry for my bad English :) Well, I cannot speak any other language besides FORTRAN at all, so don't feel bad, besides, I like your accent! :) Ok, the credit granted is based on processing time vs. the speed of an "ideal" defined reference computer. Bottom line, it depends ... To make it more complicated we have policy rules that say if you get the max requested credit, min, or an average (or the median value) ... In my BOINC FAQ there is a whole long bit aboiut credit... Also, in the glossary you can look up credit, related terms and concepts. <p> For BOINC Documentaion: Click Me! |
Jaaku Send message Joined: 29 Oct 02 Posts: 494 Credit: 346,224 RAC: 0 |
In Uncomplicated words, the Wu you are ding has to be done by 2 other people, the middle value of all 3 will be the granted credit for all of you. EG: person1 = 4, person2 = 6 , person3 = 15 you will all be granted 6. Now you asked how does 'it' work it our, Boinc just dishes out credit for how good the WU was and the time taken! Jaaku ^ Click Here ^ ^ Click Here ^ ^ Click Here ^ |
jjhat1 Send message Joined: 24 Apr 03 Posts: 49 Credit: 61,357 RAC: 0 |
In a perfect world each work unit should request the same amount of credit no matter how processes it. It is the work unit that determines the amount of credit and not who processes it. In the perfect world every work unit would be processed by each computer give the same result and ask for the same amount of credit. However, because different systems use different amounts of numbers after the decimal and some round and some truncate we get different results. Also having different speed computers with only rough benchmarks for comparison makes it differ some as well. |
kikiman Send message Joined: 21 Jan 03 Posts: 2 Credit: 2,272 RAC: 0 |
wow, I thought it would be less complicated but I was wrong Thanks for all of you for help :)))) |
Toby Send message Joined: 26 Oct 00 Posts: 1005 Credit: 6,366,949 RAC: 0 |
Also, there are different types of work units. Some take longer or shorter depending on how fast/slow the telescope was moving while the work unit was being recorded. And then of course there are work units with too much noise that cancel out before they are 'done'. So yes, complex it is :) --------------------------------------- - A member of The Knights Who Say NI! Possibly the best stats site in the universe: http://boinc-kwsn.no-ip.info |
Paul D. Buck Send message Joined: 19 Jul 00 Posts: 3898 Credit: 1,158,042 RAC: 0 |
> Also, there are different types of work units. Some take longer or shorter > depending on how fast/slow the telescope was moving while the work unit was > being recorded. And then of course there are work units with too much noise > that cancel out before they are 'done'. So yes, complex it is :) There is a handy chart and some results vs. other things (provided by Comotose) that talks to this and other issues. That is in the SETI@Home FAQ I wrote. Credit and all the wonders about it are discussed in the BOINC FAQ, touched on in the SETI@Home FAQ and in the glossary where the terms are defined. <p> For BOINC Documentaion: Click Me! |
Heaphus Send message Joined: 1 Apr 03 Posts: 96 Credit: 4,148,549 RAC: 0 |
> > There is a handy chart and some results vs. other things (provided by > Comotose) that talks to this and other issues. That is in the SETI@Home FAQ I > wrote. > Could you provide a more direct link to this information? Thanks. |
Paul D. Buck Send message Joined: 19 Jul 00 Posts: 3898 Credit: 1,158,042 RAC: 0 |
> > > > > There is a handy chart and some results vs. other things (provided by > > Comotose) that talks to this and other issues. That is in the SETI@Home > FAQ I > > wrote. > > > > Could you provide a more direct link to this information? Thanks. As part of an "unofficial" effort to document the SETI@Home Powered by BOINC, the following documents have been written to aid you in the use of SETI@Home Powered by BOINC: Documentation Menu (pdb) Release Notes = |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.