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Search: Posts Made By: James Heinrich
Forum: mersenne.ca 2021-02-26, 05:13
Replies: 6
Views: 140
Posted By James Heinrich
Thank you for pointing out this oversight on my...

Thank you for pointing out this oversight on my part. The exponent pages have now been corrected to show an entry in the Known Prime Factors section when the last cofactor is PRP (or proven-prime)....
Forum: Lone Mersenne Hunters 2021-02-25, 15:41
Replies: 1,797
Views: 185,867
Posted By James Heinrich
I added maybe 3 months ago.

I added maybe 3 months ago.
Forum: Data 2021-02-24, 14:46
Replies: 549
Views: 73,703
Posted By James Heinrich
I have updated my PRP list...

I have updated my PRP list (https://www.mersenne.ca/prp.php?show=2&min_exponent=82000&max_exponent=83000#M82939), thanks.
Forum: Lone Mersenne Hunters 2021-02-18, 17:00
Replies: 1,797
Views: 185,867
Posted By James Heinrich
Not my factor, but has a 98-bit prime k.

Not my factor, but has a 98-bit prime k.
Forum: mersenne.ca 2021-02-16, 04:12
Replies: 519
Sticky: mersenne.ca
Views: 55,952
Posted By James Heinrich
The P-1 probability code was re-designed by Mihai...

The P-1 probability code was re-designed by Mihai Preda in 2020-Aug.
His original code was, at the time, posted on https://github.com/preda/gpuowl/tree/master/pm1/ but I no longer see the file there...
Forum: mersenne.ca 2021-02-11, 20:33
Replies: 519
Sticky: mersenne.ca
Views: 55,952
Posted By James Heinrich
Thanks. My query was broken in two different ways...

Thanks. My query was broken in two different ways :redface:
Now it returns more sane valuesSELECT `exponent`, `timestamp_found` FROM `known_factors_0` WHERE (`exponent` IN (SELECT `exponent` FROM...
Forum: mersenne.ca 2021-02-11, 17:15
Replies: 519
Sticky: mersenne.ca
Views: 55,952
Posted By James Heinrich
It's possible my query is faulty, but I was not...

It's possible my query is faulty, but I was not able to find any exponents for which TJAOI has the only known factor.
SELECT *, COUNT(*) AS `howmany` FROM `prime_numbers_0` WHERE (`exponent` IN (...
Forum: mersenne.ca 2021-02-10, 15:44
Replies: 519
Sticky: mersenne.ca
Views: 55,952
Posted By James Heinrich
It's possible, but it's not a trivial query.

It's possible, but it's not a trivial query.
Forum: Software 2021-02-07, 12:28
Replies: 108
Sticky: Prime95 v30.4
Views: 8,263
Posted By James Heinrich
Yes. Your numbers are proportionately the same as...

Yes. Your numbers are proportionately the same as my testing, it used to take me 10 mins to resume stage2 and now it takes 1. The stage2 implementation is quite different...
Forum: GPU Computing 2021-02-07, 12:17
Replies: 3,464
Views: 347,508
Posted By James Heinrich
Not yet. The developer (TheJudger, aka Oliver)...

Not yet. The developer (TheJudger, aka Oliver) has been working on v0.22 for a long time now, but as yet there is no public release.
Forum: Software 2021-02-06, 23:19
Replies: 108
Sticky: Prime95 v30.4
Views: 8,263
Posted By James Heinrich
That seems about right. v30.4 has new...

That seems about right. v30.4 has new optimizations that allow it to select higher bounds for P-1. So it selected a higher B1 and a higher B2 than before. The partially-completed stage2 has to be...
Forum: Lone Mersenne Hunters 2021-02-05, 17:00
Replies: 1,797
Views: 185,867
Posted By James Heinrich
The submitted result line was: UID: gLauss,...

The submitted result line was:
UID: gLauss, M70553939 has a factor: 397468376254043223116452263596173351 (P-1, B1=645000, B2=13222500, E=12), AID: <removed>
Forum: GPU Computing 2021-02-01, 16:07
Replies: 11
Views: 5,861
Posted By James Heinrich
I assume he means VGA as in 640x480 display...

I assume he means VGA as in 640x480 display resolution (https://en.wikipedia.org/wiki/Video_Graphics_Array#Standard_graphics_modes) that Windows uses for unrecognized display hardware rather than the...
Forum: Software 2021-01-31, 18:04
Replies: 108
Sticky: Prime95 v30.4
Views: 8,263
Posted By James Heinrich
You can increase DaysOfWork in prime.txt (or the...

You can increase DaysOfWork in prime.txt (or the equivalent GUI setting).

But looking at the broader picture, it might not be a bad idea in a situation like this, if Prime95 can't find anything...
Forum: Data 2021-01-30, 02:58
Replies: 347
Views: 47,962
Posted By James Heinrich
There are 350 exponents...

There are 350 exponents (https://www.mersenne.ca/prp.php?show=1) that are fully-factored (where the last factor is either certainly or probably prime).
All the other exponents (almost?) certainly...
Forum: Lone Mersenne Hunters 2021-01-27, 16:46
Replies: 1,797
Views: 185,867
Posted By James Heinrich
Does this mean one could fake the residue for a...

Does this mean one could fake the residue for a PRP test with a different number of cofactors (trivial, it's always the same), but one would not be able to (so easily) fake the proof?
Forum: PrimeNet 2021-01-25, 02:06
Replies: 2,108
Views: 190,021
Posted By James Heinrich
Well explained, thank you. I'm sure there's many...

Well explained, thank you. I'm sure there's many users here (myself especially included) who run this stuff for some fun without really understanding the math behind it, so simple explanations like...
Forum: PrimeNet 2021-01-24, 17:46
Replies: 2,108
Views: 190,021
Posted By James Heinrich
Yes, it's possible since it's hard to...

Yes, it's possible since it's hard to authenticate whether a submitted result is a new set of results or the same result submitted again.
It will affect the number of future curves run at the...
Forum: Lone Mersenne Hunters 2021-01-21, 20:28
Replies: 1,797
Views: 185,867
Posted By James Heinrich
It's #385...

It's #385 (https://www.mersenne.ca/userfactors/ecm/1/bits#M83621) on the biggest ECM factors (edit: of Mersenne numbers) list. :smile:
Forum: PrimeNet 2021-01-19, 04:40
Replies: 2,108
Views: 190,021
Posted By James Heinrich
Not me, just George.

Not me, just George.
Forum: Software 2021-01-18, 00:31
Replies: 526
Views: 62,201
Posted By James Heinrich
All new first-time checks will be run with PRP. ...

All new first-time checks will be run with PRP.
There is a large number of LL double-checks that need to be run on exponents in the 50M-100M range, this should solve your problem nicely.
In mprime...
Forum: PrimeNet 2021-01-17, 23:52
Replies: 2,108
Views: 190,021
Posted By James Heinrich
It is my understanding that a PRP test can show...

It is my understanding that a PRP test can show one of:
Unverified (suspect) -- single test but errors were detected in the test
Unverified (reliable) -- single test and no errors detected
...
Forum: PrimeNet 2021-01-17, 22:56
Replies: 2,108
Views: 190,021
Posted By James Heinrich
Your example (M57131) is apparently...

Your example (M57131) is apparently (https://www.mersenne.ca/prp.php?show=1&min_exponent=57131&max_exponent=57131) certified P17152 in addition to those 4 factors, so I'm not sure what part you're...
Forum: PrimeNet 2021-01-17, 22:25
Replies: 2,108
Views: 190,021
Posted By James Heinrich
Can you provide a specific example please?

Can you provide a specific example please?
Forum: PrimeNet 2021-01-16, 18:36
Replies: 2,108
Views: 190,021
Posted By James Heinrich
PRP+proof support came with v30 and that was...

PRP+proof support came with v30 and that was released Aug/Sep 2020, the quoted examples all had their PRP done in May/Jun 2020.
Showing results 1 to 25 of 1000

 
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