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Search: Posts Made By: SethTro
Forum: mersenne.ca 2021-12-08, 22:48
Replies: 727
Sticky: mersenne.ca
Views: 98,118
Posted By SethTro
Another feature request to our intrepid leader,...

Another feature request to our intrepid leader, James, may he program forever.

is there any chance you can add a column on the status page for number of untested exponents (e.g. no LLR / PRP tests...
Forum: Software 2021-12-07, 23:36
Replies: 3
Views: 2,940
Posted By SethTro
I added a few new features today JSON...

I added a few new features today


JSON output of the raw data I process
Test data generator
Verified support for 30.3
Forum: Prime Gap Searches 2021-12-07, 22:23
Replies: 57
Views: 22,991
Posted By SethTro
Thumbs up That's a huge find! Congrats! Wish it had been a...

That's a huge find! Congrats! Wish it had been a top 20, still 21st is amazing.

You missed the Dec 6th update so I pushed an extra one just now.

It removes 8 points from the high water mark...
Forum: Software 2021-12-07, 20:52
Replies: 133
Views: 3,428
Posted By SethTro
+1 This does assumes you're only doing P-1...

+1

This does assumes you're only doing P-1 once. For small exponents some of us (you especially) save the backup files and re-run with larger bounds so where stage 1 is completely reused while...
Forum: Software 2021-12-07, 00:56
Replies: 3
Views: 2,940
Posted By SethTro
I'm working on TWOK and have a bunch of P-1 save...

I'm working on TWOK and have a bunch of P-1 save files laying around that I want to run the new fast stage 2 code on.

I rewrote my code as a standalone python file...
Forum: Data 2021-12-06, 11:03
Replies: 985
Views: 126,792
Posted By SethTro
I finished the 6.9M range. Version 30.8...

I finished the 6.9M range.

Version 30.8 really helped out. With new larger B2 bounds the odds of finding a factor improved from ~2% to ~4%. I re-ran a good portion of my exponents with the new...
Forum: Data 2021-12-04, 20:20
Replies: 985
Views: 126,792
Posted By SethTro
@techn1ciaN My opinion without running any...

@techn1ciaN

My opinion without running any queries or writing code is no we don't need to do anything special. We should keep querying the counts in ranges up to 120M (where TF increases to 73...
Forum: Software 2021-12-04, 11:43
Replies: 133
Views: 3,428
Posted By SethTro
With `MaxHighMemoryWorkers=1` 30.8v2 will resume...

With `MaxHighMemoryWorkers=1` 30.8v2 will resume two high memory workers at the same time.


$ cat worktodo.txt

[Worker #1]
Pminus1=1,2,50111,-1,3000000,1000000000

[Worker #2]...
Forum: Software 2021-11-30, 10:09
Replies: 161
Sticky: Prime95 30.7
Views: 14,153
Posted By SethTro
Small bug report for resumed P-1 work

Input


$ cat worktodo.txt

Pminus1=1,2,10061,-1,200000,200000
Pminus1=1,2,10061,-1,100000,5000000

$ ./mprime -d
(some lines omitted)
Forum: Data 2021-11-30, 01:59
Replies: 985
Views: 126,792
Posted By SethTro
I'm re-running stage 2 with 30.8v2 and founding a...

I'm re-running stage 2 with 30.8v2 and founding a few extra factors from larger B2

https://www.mersenne.org/report_exponent/?exp_lo=6907619&full=1

Stage 2 is several times faster. From memory...
Forum: mersenne.ca 2021-11-29, 20:45
Replies: 727
Sticky: mersenne.ca
Views: 98,118
Posted By SethTro
This is very useful. Thanks James for taking the...

This is very useful. Thanks James for taking the time to help me.

I double checked ~100 exponents and found a small set of discrepancies for small results.
...
Forum: Data 2021-11-24, 04:31
Replies: 985
Views: 126,792
Posted By SethTro
With James's help (thanks for everything). I...

With James's help (thanks for everything). I rigged up a P-1 calculator in python and tried to optimize TF vs P-1. I use a similiar methodology to what Wayne does.

If anyone is curious my code is...
Forum: mersenne.ca 2021-11-23, 12:21
Replies: 727
Sticky: mersenne.ca
Views: 98,118
Posted By SethTro
Thanks James for the quick answer about the P-1...

Thanks James for the quick answer about the P-1 probability calculator.

New questions

1. For credit.php (http://www.mersenne.ca/credit.php) there's code in...
Forum: Data 2021-11-23, 01:09
Replies: 985
Views: 126,792
Posted By SethTro
I'm working in the 6.9M range doing P-1 (B1=4M,...

I'm working in the 6.9M range doing P-1 (B1=4M, B2=110M). I have roughly a 2.5% chance of finding a factor per exp.

I got super lucky today and found 4 factors from my last 22 tests!
...
Forum: mersenne.ca 2021-11-22, 07:48
Replies: 727
Sticky: mersenne.ca
Views: 98,118
Posted By SethTro
@James, As always love the site and...

@James,


As always love the site and thanks for all the work.


I'm looking at the P-1 prob calculations...
Forum: Prime Gap Searches 2021-11-16, 03:43
Replies: 57
Views: 22,991
Posted By SethTro
I agree that a timestamp would be nice. I'm not...

I agree that a timestamp would be nice. I'm not sure how best to add it as the github site originated from Graham Higgins but I'll make an attempt.
It seems I can do this...
Forum: Factoring 2021-11-12, 04:04
Replies: 101
Views: 8,127
Posted By SethTro
I spent a good part of this week trying to...

I spent a good part of this week trying to implement fast squaring for CGBN. Ultimately my code (https://github.com/NVlabs/CGBN/issues/19#issuecomment-966779554) was 10% slower and still had breaking...
Forum: Prime Gap Searches 2021-11-12, 00:20
Replies: 57
Views: 22,991
Posted By SethTro
Verifying large records

Hey everybody.

I wanted to circle back on large gaps and the expectations from https://primegaps.cloudygo.com/

As a reminder all of this code is open-source on github...
Forum: Data 2021-11-05, 02:54
Replies: 985
Views: 126,792
Posted By SethTro
Bayes theorem says you may need to correct for...

Bayes theorem says you may need to correct for !P(old)
so (5%-2%) / (1 - 2%) = 3% / 0.98 = 3.06%
Forum: Factoring 2021-11-04, 10:12
Replies: 101
Views: 8,127
Posted By SethTro
I was playing around with CGBN today and I...

I was playing around with CGBN today and I realized that it doesn't use fast squaring (https://github.com/NVlabs/CGBN/blob/master/include/cgbn/impl_cuda.cu#L1033). in GMP fast squaring this yields a...
Forum: Information & Answers 2021-11-04, 05:29
Replies: 69
Views: 10,381
Posted By SethTro
I think I'm double dipping (counting both...

I think I'm double dipping (counting both endpoints) it should probably be 1-66/80 = 17.5% or 1-65/79 = 17.72% or possible 1-65.5/79.5 = 17.61% but these are all very close.

I believe your sum is...
Forum: Information & Answers 2021-11-04, 02:50
Replies: 69
Views: 10,381
Posted By SethTro
That's a great point about --maxmem. I...

That's a great point about --maxmem.

I updated my optimizer (https://github.com/sethtroisi/misc-scripts/tree/main/ecm_gpu_optimizer#some-select-results). New hypothetical numbers for a t70 on the...
Forum: Information & Answers 2021-11-03, 23:34
Replies: 69
Views: 10,381
Posted By SethTro
Thanks for the 0.31 number. VBCurtis's number...

Thanks for the 0.31 number. VBCurtis's number 0.21 was for SNFS. I searched for the GNFS number but couldn't find it. Can you point me at a link for analysis of the ecm cutoff?

I didn't take CPU...
Forum: Information & Answers 2021-11-03, 22:47
Replies: 69
Views: 10,381
Posted By SethTro
I was curious how VBCurtis calculated the odds of...

I was curious how VBCurtis calculated the odds of factor between t65 and t80 so I tried with both the Dickman function (https://en.wikipedia.org/wiki/Dickman_function) and Merten's theorem...
Forum: Cunningham Tables 2021-10-25, 20:53
Replies: 317
Views: 45,675
Posted By SethTro
The only details of the client displayed are the...

The only details of the client displayed are the name and statistics like last work unit finished, number of work units, ..

In the case that a people wish names the name to be hidden it's easy to...
Showing results 1 to 25 of 393

 
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