20091029, 09:32  #67 
Mar 2006
Germany
2,767 Posts 
he is changing to googlepages http://sites.google.com/site/sr2sieve/
but not all available yet there! see his post here: http://www.mersenneforum.org/showpos...&postcount=523 
20091029, 21:27  #68  
May 2008
Wilmington, DE
2×13×109 Posts 
Quote:


20091128, 03:54  #69 
Dec 2005
313 Posts 
So what is the difference in the points formula between the regular database score computation and the prpnet score computation? I assume that the prpnet stuff is going to get added to the regular database point system?

20091128, 04:30  #70  
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 
Quote:
The points will be calculated by the same formula; actually, at this point, the DB doesn't even know the difference between LLRnet and PRPnet results. We may at some point in the future have it do more advanced stuff with PRPnet results (which include a bit more informationsuch as the client name as well as usernamethan do LLRnet results), though none of that's even on the drawing board yet. 

20091128, 06:50  #71 
Dec 2005
313 Posts 
So why are they different to begin with???

20091128, 17:14  #72 
A Sunny Moo
Aug 2007
USA (GMT5)
1869_{16} Posts 
Er...I'm not sure what you mean. There's not really a "difference" per se; it's only that PRPnet records more information with each results than LLRnet does. However, the DB isn't set up to utilize that extra information at this time, since it was designed initially for LLRnet results. That's OK, as the extra information recorded by PRPnet is just extra icing on the cake, so to speak; what we end up doing is converting the results to LLRnet format with a script and then importing them to the DB.

20091128, 20:55  #73  
Just call me Henry
"David"
Sep 2007
Cambridge (GMT)
2^{4}·353 Posts 
Quote:


20091128, 21:58  #74 
Dec 2005
313 Posts 
Actually :) what I'm curious to is the number of points granted in the prpnet G3000 stats per pair returned, as it looks like 460+ per.... versus what is granted for a returned pair for the regular database points per returned pair.
As for prpnet, I like it personally. I ran it earlier when the initial beta round was going and it was stable for me. I've got it running on 12 cores now, granted they are mainly slow ones, but none the less they crunch out pairs. :) I intend to add some fast cores to the prpnet and shift some off the port 7000 stuff and see if I can manage to find some big primes. 
20091129, 01:13  #75  
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
17×251 Posts 
Quote:
Code:
How are user stats computed? The score is computed as such: (decimal length of the candidate / 10000) ^ 2 Quote:
Last fiddled with by MiniGeek on 20091129 at 01:55 

20091129, 01:55  #76 
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
17·251 Posts 
I think the conversion factor is about 144.9905. That is, PRPnetScore ~= 144.9905 * NPLBScore, or PRPnetScore / 144.9905 ~= NPLBScore. Here's how I got that: (where c is the conversion factor)
Code:
(digits / 10000)^2=c*(n^2/160e9) digits^2 / 1e8 = c*n^2/1600e8 digits^2 = c*n^2/1600 * (n*log_10(2))^2 = c*n^2/1600 log_10(2)^2*n^2 = c*n^2/1600 log_10(2)^2*1600 = c 144.9905... ~= c Edit: I noticed that I used log_2(10) where I should have used log_10(2), resulting in 17656.33 instead of 144.9905. It's fixed now, and is producing a number that matches Karsten's numbers below and makes more sense: 144.9905. This paragraph was from before I fixed it: Hmm, this seems wrong...it would mean that your 1080 tests from the 5th drive, with a (PRPnet) score of 536349, are only worth about 30.377 (NPLB) points, but from looking at http://www.noprimeleftbehind.net/ind...r_pairs&page=2 that seems more like 6 decently sized candidates. Either I went very wrong somewhere (I don't see where), or one or both of the scoring formulas I assumed is not accurate. (I have verified that in the newest released PRPnet source, that's what it really does, so that really just leaves an error on my part or NPLB's n^2/160e9 formula being wrong) Can anyone see where I went wrong, and can one of the NPLB admins verify what the formula is? Last fiddled with by MiniGeek on 20091129 at 02:51 
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