mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Data

Reply
 
Thread Tools
Old 2020-05-14, 05:38   #144
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

2·472 Posts
Default

Excellent, thank you for confirming my estimates about P-1 with some prior P-1 done.

ECM does seem a less efficient method than re-doing P-1 for candidates with prior B1 of 120k-150k. I'll run ECM anyway for a while and see if my estimates about factor frequency are reasonable; I imagine I'll end up P-1'ing the ones that stand to benefit most after I play with ECM.
VBCurtis is online now   Reply With Quote
Old 2020-05-16, 09:40   #145
lycorn
 
lycorn's Avatar
 
Sep 2002
Oeiras, Portugal

101100000012 Posts
Default

I´m back at work in low ranges.
Just started 16M, 69->70. 16.9 is currently underway.

On another note, the overall < 20M subproject is now getting a huge push from the folks at SRBase / BOINC. They are sweeping through high ranges at an amazing rate, finding an impressive number of new factors. Let´s see how long this will last.
lycorn is offline   Reply With Quote
Old 2020-05-20, 16:22   #146
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

441810 Posts
Default

In the 4.0M range I've chosen to work in, P-1 seems about twice as fast per expected factor as ECM. I have ECM running on an old laptop anyway, with P-1 on a newer machine.

I found my first two factors with P-1 for this effort, 76 and 81 bits. Rather satisfying! For the sake of this effort, too bad they were factors for the same exponent...

When I saw a 48-digit factor in the results file, I was like "awww, yea! I bet that's a record!" (for this size) Alas, just a pair of normal-sized factors. Exponent is 4067587.
VBCurtis is online now   Reply With Quote
Old 2020-06-03, 17:31   #147
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

2·5·443 Posts
Default 1,000 Days

A thousand days have passed since my first assignment in this sub-project.
In those thousand days I:
- Found 1,569 factors
- Completed over 3,000,000 GhzDays of work (mostly thanks to my 2080Ti)
- Got 50M range to less than 10 ranges with over 1,999 factors remaining
- Got 40M to under 200,000 factors remaining

But this is a mere fraction of the total factors found and ranges cleared by the collective.

Wouldn't it be cool if when I get to 1,999 days I can declare that the under-2,000 project is complete!

Thanks to all.
petrw1 is offline   Reply With Quote
Old 2020-06-05, 06:33   #148
masser
 
masser's Avatar
 
Jul 2003
wear a mask

5·172 Posts
Default

Quote:
Originally Posted by petrw1 View Post
- Got 40M to under 200,000 factors remaining
masser is online now   Reply With Quote
Old 2020-06-05, 12:22   #149
lycorn
 
lycorn's Avatar
 
Sep 2002
Oeiras, Portugal

140910 Posts
Default

Also, taking the figures in This post as a reference, and noting that at the time of typing my current post the number of unfactored exponents below 1G is 21 029 537, we see that in a bit more than 2 years we cleared just over 500,000 of them. Not bad, maybe another 5 years to achieve the goal that makes the subject of this thread.
lycorn is offline   Reply With Quote
Old 2020-06-11, 23:04   #150
ATH
Einyen
 
ATH's Avatar
 
Dec 2003
Denmark

B9916 Posts
Default

Today we fell below 21M unfactored exponents: 20,999,392 as of 22:00 UTC (6 pm EDT).

Edit:
It happened at 19:00 UTC:

18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407

Last fiddled with by ATH on 2020-06-11 at 23:08
ATH is online now   Reply With Quote
Old 2020-06-12, 00:33   #151
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

2×5×443 Posts
Default

Quote:
Originally Posted by ATH View Post
Today we fell below 21M unfactored exponents: 20,999,392 as of 22:00 UTC (6 pm EDT).

Edit:
It happened at 19:00 UTC:

18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407
Yes, SRBase is knocking off the factors like a madman...he swept through all the remaining 8 million or so 70-71 bit assignments in a matter of a couple months
petrw1 is offline   Reply With Quote
Old 2020-06-12, 00:34   #152
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

2×5×443 Posts
Default

Quote:
Originally Posted by ATH View Post
18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407
By the way where do you see this?
petrw1 is offline   Reply With Quote
Old 2020-06-12, 01:34   #153
ATH
Einyen
 
ATH's Avatar
 
Dec 2003
Denmark

296910 Posts
Default

My script that generates this page: unfactored.html

I ran it on the hourly backups I have of https://www.mersenne.org/primenet
ATH is online now   Reply With Quote
Old 2020-07-10, 01:48   #154
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

105168 Posts
Default I've completed 100,000 assignments for this project

In just under 3 years.

65,710 TF for 642 Factors with a 0.98% success rate
31,195 P1 for 972 Factors with a 3.12% success rate
3,095 ECM for 29 Factors with a 0.94% success rate
petrw1 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Thinking of Joining GPU to 72 jschwar313 GPU to 72 3 2016-01-31 00:50
Thinking about lasieve5 Batalov Factoring 6 2011-12-27 22:40
Thinking about buying a panda jasong jasong 1 2008-11-11 09:43
Loud thinking on irregular primes devarajkandadai Math 4 2007-07-25 03:01
Question on unfactored numbers... WraithX GMP-ECM 1 2006-03-19 22:16

All times are UTC. The time now is 19:41.

Sat Oct 31 19:41:33 UTC 2020 up 51 days, 16:52, 2 users, load averages: 2.58, 2.05, 1.88

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.