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Old 2006-11-11, 01:02   #1
jinydu
 
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Default TPR Reaches 5000 Factoring P90 CPU Years

Congratulations!

Code:
Mersenne PrimeNet Server 4.0 (Build 4.0.101)
Top Factoring Producers Report 11 Nov 2006 00:00 (Nov 10 2006  4:00PM Pacific)
 
This report is updated every 60 minutes
 
 Rank   Account ID      LL P90*  Exponents  Fact.P90  Exponents   P90 CPU
                       CPU yrs  LL Tested  CPU yrs*  w/ Factor   hrs/day
------  --------------  -------  ---------  --------  ---------  --------
    1.  Team_Prime_Rib  76676.4    58613     5000.39     6391    212943.2
    2.  TheJudger       4651.06     2651     2047.51     2018    84796.93
    3.  tsc             1525.74      500     1272.16     1323    10407.49
    4.  S143790         614.905      102     869.426      677    12106.83
    5.  mnrcrl42        7258.60     1431     802.345      711    68028.76
    6.  JohnMartin       86.556       32     747.466      704     2283.14
    7.  sdbardwick      1736.38     1029     741.299      953     9595.26
    8.  JC_Herles       2519.96      955     705.097      594    15686.57
    9.  ebravick        17747.9     8701     692.020      761    60910.18
   10.  ktd             374.805      559     681.060      904     3199.37
   11.  eepiccolo       542.075       97     619.213      430     6977.29
   12.  Team_UUNET      1675.27      620     592.057      477     7320.95
   13.  ahmerali        18612.4     4044     582.625      338    319674.1
   14.  Northwestern    2597.48     3309     520.658      987     9976.22
   15.  RTR007          1665.80      334     516.747      371    10863.15
   16.  jss4             16.124       43     436.361      402     1457.81
   17.  curtisc          103505    35728     424.911      802    298499.5
   18.  Leggett          23.375       34     375.628      303     2724.29

Last fiddled with by jinydu on 2006-11-11 at 01:03
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Old 2006-11-11, 06:45   #2
bayanne
 
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And closing in ....

Code:
   Team           P90 Years    Factors found
21 Net_Force       339.948      7179  
1  Team_Prime_Rib 5001.020      6392
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Old 2006-11-11, 07:31   #3
jinydu
 
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You have put in well under 10% of their work, yet you have found more factors! That's an impressive run of luck!

(Explanations? Anyone?)

Last fiddled with by jinydu on 2006-11-11 at 07:49
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Old 2006-11-11, 08:11   #4
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The motivation for TPR is catching Net_Force who found all of their factors when less work was recorded than it does now ....
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Old 2006-11-11, 08:48   #5
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So you're saying that in the past, more Factoring credit was given for the same amount of actual work?
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Old 2006-11-11, 09:57   #6
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I think it is the other way round: in the past one could find factors more easily (earning less credit) because the exponents where smaller.

You have the same phenomenon with LL tests: some users with little credit do have a huge quantity of LL tests on their record. With the current exponents you get about 7 P90 CPU years per exponent, with the lower ones you got 1 or less P90 CPU years. Just compare the following stats:
Code:
Cheopis          96.312       14       0.641        0     1097.30
dtwilliamson     95.796      159       1.146       12      271.49
The first has an averadge of almost 6.9 P90 CPU years per exponent, the second has 0.6.
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Old 2006-11-11, 11:34   #7
R. Gerbicz
 
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Quote:
Originally Posted by Jacob Visser View Post
I think it is the other way round: in the past one could find factors more easily (earning less credit) because the exponents where smaller.
Yes, that is one reason, but there is also another reason for that: if he tested many Mersenne numbers from 61 bits to 62 bits, then he has got much higher chance to find a factor than an average user who is testing a Mersenne number say from 66 bits to 67 bits.
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Old 2006-11-11, 12:07   #8
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Another reason could be that people who complete many p-1 tests get comparingly little credit per work or factor found.
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Old 2006-11-15, 22:23   #9
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Well in this case R. Gerbicz has got it right. Net_Force used to factor a ton of numbers from 57 to 60 or to 62 bits before they were released on Primenet and then as soon as they were released he/she used to submit all the factors found. This kind of activity is a lot less rewarding now that LMH has factored everything to at least 62 bits before the release to Primenet.

And thanks for the congratulations!
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Old 2006-11-16, 01:59   #10
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Based on the average rate over the last 90 days, as given on TPR's website, Team Prime Rib will reach 10,000 Factoring CPU years on Sept. 19, 2009 at 2 pm my time (US Pacific).
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Old 2007-01-15, 01:40   #11
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Team Prime Rib has crossed 80,000 CPU years in LL testing and 60,000 exponents tested. Also, ahmerali has moved up from #5 to #4 (changes in rank tend to be quite rare near the top).

And I know that I am quite late in pointing these milestones out.

Code:
Mersenne PrimeNet Server 4.0 (Build 4.0.101)
Top Producers Report 15 Jan 2007 01:00 (Jan 14 2007  5:00PM Pacific)
 
This report is updated every 60 minutes
 
Rank    Account ID      LL P90*  Exponents  Fact.P90  Exponents   P90 CPU
                        CPU yrs  LL Tested  CPU yrs*  w/ Factor   hrs/day
------  --------------  -------  ---------  --------  ---------  --------
    1.  curtisc          111903    37021     491.392      868    316074.8
    2.  Team_Prime_Rib  80385.6    60082     5290.69     6593    219131.1
    3.  S00113          21955.2     9170     140.038      735    57881.09
    4.  ahmerali        21627.1     4554     724.738      391    331307.0
    5.  telos           21451.6     7064      82.629      251    62650.23
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