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Old 2020-05-14, 05:38   #144
VBCurtis
 
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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.
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Old 2020-05-16, 09:40   #145
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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.
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Old 2020-05-20, 16:22   #146
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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.
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Old 2020-06-03, 17:31   #147
petrw1
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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.
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Old 2020-06-05, 06:33   #148
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Quote:
Originally Posted by petrw1 View Post
- Got 40M to under 200,000 factors remaining
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Old 2020-06-05, 12:22   #149
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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.
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Old 2020-06-11, 23:04   #150
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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
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Old 2020-06-12, 00:33   #151
petrw1
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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
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Old 2020-06-12, 00:34   #152
petrw1
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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?
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Old 2020-06-12, 01:34   #153
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My script that generates this page: unfactored.html

I ran it on the hourly backups I have of https://www.mersenne.org/primenet
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Old 2020-07-10, 01:48   #154
petrw1
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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
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