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Old 2011-09-09, 02:13   #1
Oddball
 
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Default TPS Record Rally: September 16-21

Hi everyone!

We've reached the optimal sieve depth for the variable-n range, so we're having a rally to celebrate its completion. It will start on September 16, 00:01 CDT and end on September 21, 23:59 CDT. The rally will be on both PRPNet (port 12000) and LLRNet (port 12050). As usual, the person and team that tests the most k/n pairs and/or finds the most primes will win the competition.

The records to break for this rally are:
- number of k/n pairs tested in a day (current record is 29961 pairs on January 16, 2011)
- largest results file generated in a day (current record is 2.6 MB for the PRPNet server on January 16)
- most primes found in a 24 hour period (current record is 8 primes found between May 3, 2:00 CDT and May 4, 2:00 CDT)
- largest known twin prime (current record is 100355 digits found on August 2009)

We'll see how many of those records fall in the upcoming days. In the meantime, happy prime and twin hunting
--------------------------------------------------------
(original message)
Hi everyone!

We haven't had a rally for quite some time, so we'll soon have a big and long one to make up for that. It will start on September 14th and end a week later on the 21st.

Like last time, we'll be having a sieve rally again. With the variable-n range sieve entering it's third year of operation, we figured that it's about time the optimal sieve depth was reached. We'll be working on n=495K-500K, which has a bit more than 1P to go. To participate, head over to the sieve reservation thread here: http://www.mersenneforum.org/showthread.php?t=12260

The rules will be similar to last time: you can reserve a range at any time on the 14th, but you'll need to finish it within 168 hours if you want full credit. That is, a range reserved on Sept. 14, 10:32 GMT will have to be completed on or before Sept. 21, 10:32 GMT.

During the previous rally, our average rate was 1797M p/sec, or 155T/day. If we average a little above that during next week's rally, it will be all that's needed to put this sieve effort behind us once and for all. So let's dust off those computers, finish off the range, and git-r-done!

Last fiddled with by Oddball on 2011-09-13 at 02:06
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Old 2011-09-09, 02:15   #2
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The overall stats for the rally are at the bottom of this post.

Rally stats for September 16:
Code:
User                   k/n pairs tested         Primes found
odicin                      6817                       1
Oddball                     1483                       1
mdettweiler                  399                       0
Robert47                       3                       0
 
Team                          k/n pairs tested           Primes found
BOINC_Confederation               6817                        1
TwinFinders                       1483                        1
RaidersOfTheLostPrimes             399                        0
Everyone else                        3                        0
 
Total: 8702 pairs tested, 2 primes found
Rate: 1 pair every 9.93 seconds
Rally stats for September 17:
Code:
User                  k/n pairs tested          Primes found
odicin                    6984                        2
sm5ymt                    4380                        3
Lumiukko                  2872                        0
Rick_Reynolds             1769                        1
Oddball                   1536                        0
mdettweiler                528                        0
Tim                        505                        0
Robert47                    51                        0
Tarmo_Ilves                 48                        0
 
Team                          k/n pairs tested           Primes found
PrimeSearchTeam                   7252                       3     
BOINC_Confederation               6984                       2
Aggie_The_Pew                     2322                       1
TwinFinders                       1536                       0
RaidersOfTheLostPrimes             528                       0      
Everyone else                       51                       0
 
Total: 18673 pairs tested, 6 primes found
Rate: 1 pair every 4.63 seconds
Rally stats for September 18:
Code:
User                  k/n pairs tested          Primes found
sm5ymt                    27195                     5
Lumiukko                   7063                     3
odicin                     6788                     2
Rick_Reynolds              2689                     1
Oddball                    1545                     1
Caravaggio                  759                     0
mdettweiler                 722                     0
Tim                         545                     0
Ian_Smith                    21                     0
 
Team                         k/n pairs tested           Primes found
PrimeSearchTeam                 34258                       8 
BOINC_Confederation              6788                       2
Aggie_The_Pew                    4014                       1
TwinFinders                      1545                       1
RaidersOfTheLostPrimes            722                       0 
 
Total: 47327 pairs tested, 12 primes found
Rate: 1 pair every 1.83 seconds
Rally stats for September 19:
Code:
User                  k/n pairs tested          Primes found
sm5ymt                    27789                     6
Lumiukko                   6872                     1
odicin                     5656                     3
Rick_Reynolds              2666                     0
mdettweiler                1527                     0
Oddball                    1398                     0
Caravaggio                  792                     0
Tim                         425                     0
Ian_Smith                   116                     0
Robert47                     14                     0
 
Team                        k/n pairs tested            Primes found
PrimeSearchTeam                34661                        7 
BOINC_Confederation             5656                        3
Aggie_The_Pew                   3999                        0
RaidersOfTheLostPrimes          1527                        0
TwinFinders                     1398                        0
Everyone else                     14                        0
 
Total: 47255 pairs tested, 10 primes found
Rate: 1 pair every 1.83 seconds
Rally stats for September 20:
Code:
User                  k/n pairs tested          Primes found
sm5ymt                     33408                    7
Lumiukko                    8146                    2
odicin                      5403                    1
Rick_Reynolds               2806                    0
Mark_Doom                   2031                    0
mdettweiler                 1728                    0
Oddball                     1527                    0
Caravaggio                   867                    0
Puzzle-Peter                 820                    0
Tim                          520                    0
flat                         352                    0
rebirther                    294                    0
Ian_Smith                    225                    0
Gary_Craig                   130                    0
Tarmo_Ilves                    6                    0
 
Team                        k/n pairs tested            Primes found
PrimeSearchTeam                41554                        9
Aggie_The_Pew                   6585                        0
BOINC_Confederation             5697                        1
RaidersOfTheLostPrimes          1728                        0
TwinFinders                     1527                        0
SETI.Germany                    1172                        0
 
Total: 58263 pairs tested, 10 primes found
Rate: 1 pair every 1.48 seconds
Rally stats for September 21:
Code:
User                  k/n pairs tested          Primes found
sm5ymt                    22875                     3
Lumiukko                   7909                     2
odicin                     5775                     2
Rick_Reynolds              2062                     1
mdettweiler                1863                     0
Oddball                    1564                     0
Puzzle-Peter               1095                     0
flat                        960                     0
Caravaggio                  947                     0
Mark_Doom                   857                     0
Tim                         255                     0
 
Team                        k/n pairs tested           Primes found
PrimeSearchTeam                 30784                      5
BOINC_Confederation              5775                      2
Aggie_The_Pew                    4121                      1
SETI.Germany                     2055                      0
RaidersOfTheLostPrimes           1863                      0
TwinFinders                      1564                      0
 
Total: 46162 pairs tested, 8 primes found
Rate: 1 pair every 1.87 seconds
Total rally stats for September 16-21:
Code:
Rank  User                 k/n pairs tested           Primes found
 1    sm5ymt                  115647                      24
 2    odicin                   37423                      11
 3    Lumiukko                 32862                       8
 4    Rick_Reynolds            11992                       3
 5    Oddball                   9053                       2
 6    mdettweiler               6767                       0
 7    Caravaggio                3365                       0 
 8    Mark_Doom                 2888                       0
 9    Tim                       2250                       0
10    Puzzle-Peter              1915                       0
11    flat                      1312                       0
12    Ian_Smith                  362                       0
13    rebirther                  294                       0
14    Gary_Craig                 130                       0
15    Robert47                    68                       0
16    Tarmo_Ilves                 54                       0
 
 
Rank   Team                    k/n pairs tested         Primes found
 1   PrimeSearchTeam               148509                   32 
 2   BOINC_Confederation            37717                   11
 3   Aggie_The_Pew                  21041                    3
 4   TwinFinders                     9053                    2
 5   RaidersOfTheLostPrimes          6767                    0 
 6   SETI.Germany                    3227                    0
 7   Everyone else                     68                    0
 
Total: 226382 pairs tested, 48 primes found
Overall rate: 1 k/n pair every 2.29 seconds

Last fiddled with by Oddball on 2011-09-22 at 06:53
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Old 2011-09-13, 02:12   #3
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All ranges below the optimal sieve depth have been reserved, so the rally has been changed from a sieve rally to an LLR one. The starting time is postponed to September 16, 00:01 CDT in order to let sievers complete their ranges.

Last fiddled with by Oddball on 2011-09-13 at 02:13
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Old 2011-09-13, 16:11   #4
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Is it possible to work together with Primegrid for PSA points?
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Old 2011-09-16, 02:11   #5
Oddball
 
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Quote:
Originally Posted by rebirther View Post
Is it possible to work together with Primegrid for PSA points?
There won't be any direct collaboration with Primegrid for this rally, but I'm considering that option for future ones. Of course, Rytis and/or Lennart would also have to agree on putting part of the variable-n range search on Primegrid's PRPNet.

Anyway, the rally is about to start in less than 3 hours Anyone in?
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Old 2011-09-16, 05:16   #6
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Quote:
Originally Posted by Oddball View Post
Anyone in?
Yes... I'm switching cores to TPS-Server...

Regards Odi
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Old 2011-09-16, 08:36   #7
mdettweiler
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Quote:
Originally Posted by Oddball View Post
There won't be any direct collaboration with Primegrid for this rally, but I'm considering that option for future ones. Of course, Rytis and/or Lennart would also have to agree on putting part of the variable-n range search on Primegrid's PRPNet.

Anyway, the rally is about to start in less than 3 hours Anyone in?
Ah, whoops! I'd been planning to participate but the date came upon me rather quickly. (Things have been a bit hectic in the offline world lately.)

I'll see about switching some cores over tomorrow.
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Old 2011-09-21, 16:23   #8
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Say, I just noticed something rather interesting...at the rate we're currently processing, we are actually on track to finish the k<100K range up to n=500K in under 5 days! The rally will, of course, be over somewhat before then, but if a critical mass of participants stuck around for at least a few days after the rally, we should be able to finish it off.

I'll leave my 9 cores on for another week or so; anyone with me?
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Old 2011-09-21, 18:05   #9
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Quote:
anyone with me?
Not all cores, but I think i will left some more as usual at least to pg equinox challenge.

Regards Odi
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Old 2011-09-21, 20:00   #10
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Quote:
Originally Posted by mdettweiler View Post
Say, I just noticed something rather interesting...at the rate we're currently processing, we are actually on track to finish the k<100K range up to n=500K in under 5 days! The rally will, of course, be over somewhat before then, but if a critical mass of participants stuck around for at least a few days after the rally, we should be able to finish it off.
I think a better goal would be to finish k<100K up to n=495K, not 500K. First of all, the 495K-500K sieve file is only sieved to p=10G, compared with 950T for the 490K-495K file. Secondly, we can reach n=495K before Primegrid's equinox rally starts if a lot of participants stick around, but it won't be possible to get to n=500K by that time even if we get an updated sieve file.

Quote:
I'll leave my 9 cores on for another week or so; anyone with me?
I'm leaving most of my cores for another ~5 days (the rest will be used to doublecheck the primes found during the rally).

BTW, it appears that the PRPNet server will dry out soon. Max, could you load n=492.5K-495K into port 12000?
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Old 2011-09-21, 21:18   #11
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Quote:
Originally Posted by Oddball View Post
I think a better goal would be to finish k<100K up to n=495K, not 500K. First of all, the 495K-500K sieve file is only sieved to p=10G, compared with 950T for the 490K-495K file. Secondly, we can reach n=495K before Primegrid's equinox rally starts if a lot of participants stick around, but it won't be possible to get to n=500K by that time even if we get an updated sieve file.
Ah, right...I'd forgotten that the 495K-500K sieve file is currently only sieved to 10T. The sieving, of course, is nearly done, but the factors will need to be removed before that will be of any use for LLRing. Hopefully gribozavr will reappear soon bearing sieve files...
Quote:
I'm leaving most of my cores for another ~5 days (the rest will be used to doublecheck the primes found during the rally).

BTW, it appears that the PRPNet server will dry out soon. Max, could you load n=492.5K-495K into port 12000?
Okay, will do.
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