mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > No Prime Left Behind

Reply
 
Thread Tools
Old 2009-06-11, 11:32   #100
pb386
 
pb386's Avatar
 
Nov 2003

23·163 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
Thank you for the update Peter. Just out of curiosity, do you do them 15 k's at a time or something like that? I noticed some that you're close to 700K on so it just made me wonder.
I'm not saying this is a good way to do it but:

On some machines I give them a particular k value (starting from the bottom of the range I am testing) & then I can leave them to get on with it with little intervention.

Other machines I take a k range (starting from the top of the range) and sort them by size & give the machines a couple of weeks work to do. This is a bit more labour intensive so I'm now wondering why I do this.

The ones I am waiting for are in the first category where a slow machine or large file is allocated to a machine & is just going to take a while to finish. I wondered about taking them off & finishing them more quickly but I can't really be bothered as they will finish soon enough anyway. I guess that's the point of the second method so you don't get 1 machine stuck with weeks of work when the others have finished.
pb386 is offline   Reply With Quote
Old 2009-06-28, 03:47   #101
MyDogBuster
 
MyDogBuster's Avatar
 
May 2008
Wilmington, DE

22·709 Posts
Default

Just in case anyone missed it, here is the Top 5000 project table as of about 11:44PM EST (Sat night) or 04:44 GMT Sunday.
Nice accomplishment for a team just basically filling in the holes.

http://primes.utm.edu/bios/top20.php...nk&at=8&id=581

In case the numbers have changed, this is what it looked like

rank project primes score
1 No Prime Left Behind (formerly: PrimeSearch) 956 48.1337
2 Riesel Prime Search 955 48.7282
3 PrimeGrid 807 49.6929
4 Prime Internet Eisenstein Search 161 46.7013
5 Free-DC's Prime Search 116 45.3565
6 15k*2^n-1 search 51 45.2680
7 Riesel Base 5 41 45.1530
8 Yves Gallot's GFN Search Project 37.5 47.2565
9 Riesel Sieve Project 31 48.3724
10 Conjectures 'R Us 25 44.8108
11 Generalized Woodall Prime Search 19 43.7155
12 12121 Search 16 46.5538
13 The Prime Sierpinski Problem 13 48.2316
13 Great Internet Mersenne Prime Search by Woltman & Kurowski 13 55.8432
15 Seventeen or Bust 11 51.3943
16 GFN 2^16 Sieving project 10.5 45.1779
17 Twin Prime Search 8.5 42.1877
17 321search 8.5 47.4915
19 GFN 2^15 Sieving project 5.5 43.5407
20 Mat's Prime Search 4 45.3451

Last fiddled with by MyDogBuster on 2009-06-28 at 03:58
MyDogBuster is offline   Reply With Quote
Old 2009-06-28, 04:37   #102
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

3·2,083 Posts
Default

Quote:
Originally Posted by MyDogBuster View Post
Just in case anyone missed it, here is the Top 5000 project table as of about 11:44PM EST (Sat night) or 04:44 GMT Sunday.
Nice accomplishment for a team just basically filling in the holes.

http://primes.utm.edu/bios/top20.php...nk&at=8&id=581

In case the numbers have changed, this is what it looked like

rank project primes score
1 No Prime Left Behind (formerly: PrimeSearch) 956 48.1337
2 Riesel Prime Search 955 48.7282
3 PrimeGrid 807 49.6929
4 Prime Internet Eisenstein Search 161 46.7013
5 Free-DC's Prime Search 116 45.3565
6 15k*2^n-1 search 51 45.2680
7 Riesel Base 5 41 45.1530
8 Yves Gallot's GFN Search Project 37.5 47.2565
9 Riesel Sieve Project 31 48.3724
10 Conjectures 'R Us 25 44.8108
11 Generalized Woodall Prime Search 19 43.7155
12 12121 Search 16 46.5538
13 The Prime Sierpinski Problem 13 48.2316
13 Great Internet Mersenne Prime Search by Woltman & Kurowski 13 55.8432
15 Seventeen or Bust 11 51.3943
16 GFN 2^16 Sieving project 10.5 45.1779
17 Twin Prime Search 8.5 42.1877
17 321search 8.5 47.4915
19 GFN 2^15 Sieving project 5.5 43.5407
20 Mat's Prime Search 4 45.3451


Original project goal #6 has been accomplished!

mdettweiler is offline   Reply With Quote
Old 2009-06-28, 05:04   #103
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

34·53 Posts
Default









OH YEAH!!

Thank you to all of our dedicated searchers. And to think this was done while also running double-checks and filling in all non-top-5000 ranges as we went along.

I couldn't ask for a finer group of technically competent and detailed-oriented individuals to help make this come true! I know someone had to tell me how to run my computers. lol

Let's maintain that lead as long as we can! :-)

Next target: To be the #1 non-BOINC project on top-5000 score! An upcoming drive later this year for k=300-400/n=1M-2M will help with that.


Gary

Last fiddled with by gd_barnes on 2009-06-28 at 05:05
gd_barnes is offline   Reply With Quote
Old 2009-07-11, 05:30   #104
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

1012510 Posts
Default

I have migrated my web pages from googlepages to the noprimeleftbehind site. This involved changing links to posted sieved files and downloadable programs here at NPLB. Let me know if you have any problems with them.

On another note, I will be out of town from later today (July 11th) to July 22nd. I'll be on but not as much as I would normally. Things have been quiet here but we've been crunching along and finding plenty of primes so I think Max, Ian, and Karsten will hold down the fort if I'm not on as much.


Gary
gd_barnes is offline   Reply With Quote
Old 2009-07-31, 01:15   #105
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

34·53 Posts
Default 1000 PRIMES!!

NPLB now owns 20% of the top 5000. To the best of my knowledge, we are the first project to ever accomplish such a feat. Attached is the screen shot. The feat was accomplished at about 19:50 CDT on Jul. 30th. (0:50 GMT on Jul. 31st)

It was a serious effort to keep pounding them out even as our myriad of lower primes were dropping off at a rapid pace.

Congrats to all for a job well done!

Attached Thumbnails
Click image for larger version

Name:	Top5000-1000.jpg
Views:	84
Size:	166.3 KB
ID:	3915  

Last fiddled with by MyDogBuster on 2009-07-31 at 06:04 Reason: Fixed typo
gd_barnes is offline   Reply With Quote
Old 2009-07-31, 06:21   #106
kar_bon
 
kar_bon's Avatar
 
Mar 2006
Germany

AEC16 Posts
Default Projects score on place 6

... and when i'm right (i'll see the next hour) we're jumping up on place 6 for the Project scoring with my latest prime for 327*2^949109-1!


Done! the 6th place in terms of score at Top5000 reached! see "Historicals and Milestones"

Last fiddled with by kar_bon on 2009-07-31 at 08:39
kar_bon is offline   Reply With Quote
Old 2009-08-01, 10:53   #107
AMDave
 
AMDave's Avatar
 
Jan 2006
deep in a while-loop

2·7·47 Posts
Default

Awesome results kar_bon.

Kar_bon now owns the top 5 and 7 of the top 10.

http://www.noprimeleftbehind.net/ind...core&type=desc

The rest of us really need to lift our game ;)

kar_bon: so 5 to go for the Top 10 for me!

Last fiddled with by kar_bon on 2009-08-01 at 12:24
AMDave is offline   Reply With Quote
Old 2009-08-02, 19:15   #108
MooooMoo
Apprentice Crank
 
MooooMoo's Avatar
 
Mar 2006

2×227 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
NPLB now owns 20% of the top 5000. To the best of my knowledge, we are the first project to ever accomplish such a feat.
Two years ago, TPS and Primegrid had 2000 primes on the top 5000 list. Splitting the credit would give each project 1000 primes.

From:
http://tech.groups.yahoo.com/group/p...m/message/8676
Quote:
Congrats to projects Twin Prime Search and PrimeGrid for attaining
1000 primes between them (with a few pending submission
verifications.) I have not seen this sort of thing since Kimmo
Herranen's announcement:

"At 3rd of June 1999 , I achieved to have 1000 primes at top 5000."
MooooMoo is offline   Reply With Quote
Old 2009-08-02, 19:22   #109
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

34·53 Posts
Default

Ah well. Burst our bubble a little. lol Regardless, a great achievement for all 3 projects.

That's amazing that a single individual had 1000 primes at one time. That should be very difficult in today's day and age with highly efficiently run and automated prime search projects.

Thanks for setting the record straight.

Last fiddled with by gd_barnes on 2009-08-02 at 19:25
gd_barnes is offline   Reply With Quote
Old 2009-09-03, 16:13   #110
cipher
 
cipher's Avatar
 
Feb 2007

211 Posts
Default

We are no longer #1
http://primes.utm.edu/bios/top20.php...nk&at=2&id=518

PG took over and we fell below our 1000 primes on the list.
cipher is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
News gd_barnes Conjectures 'R Us 281 2020-02-26 21:25
P!=NP in the news willmore Computer Science & Computational Number Theory 48 2010-09-19 08:30
Other news Cruelty Riesel Prime Search 41 2010-03-08 18:46
The news giveth, the news taketh away... NBtarheel_33 Hardware 17 2009-05-04 15:52
News KEP Riesel Base 3 Attack 4 2008-12-17 11:54

All times are UTC. The time now is 16:14.

Thu May 28 16:14:05 UTC 2020 up 64 days, 13:47, 1 user, load averages: 1.18, 1.54, 1.64

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.