Let's Optimize P-1 for low exponents. TL;DR in post #1. More in posts 60 and 61. - Page 24

Prime95 · 2023-01-11, 19:41

Quote:

Originally Posted by chris2be8

Would P+1 be useful to help get 4.96M or 6.48M below 200 unfactored exponents?

No. ECM has polynomial stage 2 in 30.9/30.10, P+1 not yet.

alpertron · 2023-01-14, 18:55

I've just completed the factorization effort on 17.1M. Now this range has 4000 Mersenne numbers factored.

I found 101 factors, 83 of them with B1 = 1M, B2 = 500M and 18 of them with B1 = 4M, B2 = 2G.

congsz · 2023-01-15, 03:33

I am reserving 3.12M with B1=30000000, B2=~76836846450, since I have already done quite a bit of P-1 Stage 1 and has started working in Stage 2.

Progress in my other ranges:
4.96M ECM to T25 is slowly progressing, now at M4961543, estimated completion: 2024
8.90M & 8.91M & 8.93M completed, 8.95M just started, 8.94M halfway done.
8.92M will be done with high bounds (B1=50000000, B2=~1281*B1) in order to reach <200 unfactored. Now the stage 1 of 10/~217 exponents are done, currently doing stage 1 without reporting results.
8.98M planning to start.

petrw1 · 2023-01-15, 05:23

Quote:

Originally Posted by congsz

I am reserving 3.12M with B1=30000000, B2=~76836846450, since I have already done quite a bit of P-1 Stage 1 and has started working in Stage 2.

Progress in my other ranges:
4.96M ECM to T25 is slowly progressing, now at M4961543, estimated completion: 2024
8.90M & 8.91M & 8.93M completed, 8.95M just started, 8.94M halfway done.
8.92M will be done with high bounds (B1=50000000, B2=~1281*B1) in order to reach <200 unfactored. Now the stage 1 of 10/~217 exponents are done, currently doing stage 1 without reporting results.
8.98M planning to start.

I didn't notice any activity in 3.1M so I reserved the whole range about a month ago on post #1
I've completed S1 and S2 on 20 exponents in the 3.12M sub-range already and about 50 more up to 3.123M with Stage1 with B1= about 9M; including the 10 you have already S1'd to 30M. This will make my effort wasted.

I don't report results until both S1 and S2 are complete; scheduled for about a 6 weeks from now.

Did you by any chance mean to reserve 3.11M? since 3.12 is already under 200 Unfactored and 3.11 needs 12 more.

Let me know what you want to do.
Can you hold off 3.12M for a while until I am done?
Otherwise I need to discard my assignments and find other.

congsz · 2023-01-15, 05:39

I have already done a complete 3.12M P-1 stage 1 from M3120079 to M3121259 (including M3120079 and M3121259), starting at the end of November and finished in Dec 26.
When I started doing P-1, there were no assignments in this range in post #1.
Other exponents are totally untested.

I don't want my effort to go to waste either, so I would like to finish Stage 2 on the exponents I have tested.
Others are freely left for you.

I do not mean to reserve 3.11M.

petrw1 · 2023-01-15, 05:54

Quote:

Originally Posted by congsz

I have already done a complete 3.12M P-1 stage 1 from M3120079 to M3121259 (including M3120079 and M3121259), starting at the end of November and finished in Dec 26.
When I started doing P-1, there were no assignments in this range in post #1.
Other exponents are totally untested.

I don't want my effort to go to waste either, so I would like to finish Stage 2 on the exponents I have tested.
Others are freely left for you.

I do not mean to reserve 3.11M.

OK thanks.

You didn't post that you were doing this, otherwise I would not have taken them.

congsz · 2023-01-15, 06:31

Quote:

Originally Posted by petrw1

OK thanks.

You didn't post that you were doing this, otherwise I would not have taken them.

OK. I will post a message here whenever I start working in a new range in the future.

petrw1 · 2023-01-16, 05:13

I'll be away for a couple months with sporadic Internet access.
Updates and communication from me is uncertain during that time.

Please continue to let each others know in this thread what ranges you are working on.
Here's hoping for continued awesome participation while I'm gone.

Thanks and Tally Ho!!!!

chalsall · 2023-01-16, 05:19

Quote:

Originally Posted by petrw1

Thanks and Tally Ho!!!!

Travel safe. And, a laptop isn't that heavy...

masser · 2023-01-20, 03:20

There are about 25 exponents below 100K (i.e. p<1e5) with B1 less than the value prescribed for this project. I'm going to complete those exponents in the next few days.

DrobinsonPE · 2023-01-20, 22:31

Another range finished. This one was already partially completed by someone else so it went quick.

7.0 DrobinsonPE --- COMPLETE (63)

2023-01-15, 03:33	#256
congsz "Cong Shengzhuo" Sep 2021 Nanjing, China 47₁₀ Posts	I am reserving 3.12M with B1=30000000, B2=~76836846450, since I have already done quite a bit of P-1 Stage 1 and has started working in Stage 2. Progress in my other ranges: 4.96M ECM to T25 is slowly progressing, now at M4961543, estimated completion: 2024 8.90M & 8.91M & 8.93M completed, 8.95M just started, 8.94M halfway done. 8.92M will be done with high bounds (B1=50000000, B2=~1281B1) in order to reach <200 unfactored. Now the stage 1 of 10/~217 exponents are done, currently doing stage 1 without reporting results. 8.98M planning to start. Last fiddled with by congsz on 2023-01-15 at 04:06 Reason: Update in progress*

2023-01-15, 05:39	#258
congsz "Cong Shengzhuo" Sep 2021 Nanjing, China 47 Posts	I have already done a complete 3.12M P-1 stage 1 from M3120079 to M3121259 (including M3120079 and M3121259), starting at the end of November and finished in Dec 26. When I started doing P-1, there were no assignments in this range in post #1. Other exponents are totally untested. I don't want my effort to go to waste either, so I would like to finish Stage 2 on the exponents I have tested. Others are freely left for you. I do not mean to reserve 3.11M. Last fiddled with by congsz on 2023-01-15 at 05:39

2023-01-16, 05:13	#261
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 3·5²·71 Posts	Vacation I'll be away for a couple months with sporadic Internet access. Updates and communication from me is uncertain during that time. Please continue to let each others know in this thread what ranges you are working on. Here's hoping for continued awesome participation while I'm gone. Thanks and Tally Ho!!!!

2023-01-20, 03:20	#263
masser Jul 2003 Behind BB 2×7×11×13 Posts	Very Low Cleanup There are about 25 exponents below 100K (i.e. p<1e5) with B1 less than the value prescribed for this project. I'm going to complete those exponents in the next few days.

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2023-01-14, 18:55	#255
alpertron Aug 2002 Buenos Aires, Argentina 1523₁₀ Posts	I've just completed the factorization effort on 17.1M. Now this range has 4000 Mersenne numbers factored. I found 101 factors, 83 of them with B1 = 1M, B2 = 500M and 18 of them with B1 = 4M, B2 = 2G.

2023-01-20, 22:31	#264
DrobinsonPE Aug 2020 256₈ Posts	Another range finished. This one was already partially completed by someone else so it went quick. 7.0 DrobinsonPE --- COMPLETE (63)