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Search: Posts Made By: ATH
Forum: Data 2021-05-11, 14:35
Replies: 99
Views: 2,997
Posted By ATH
How does that work?

How does that work?
Forum: Data 2021-05-10, 17:07
Replies: 99
Views: 2,997
Posted By ATH
Not sure how this "P+1" factor was found in...

Not sure how this "P+1" factor was found in stage1 with B1=550,000 ?
8676163 : P=538825884739595715103

B1 is larger than 5 of 6 factors of P-1 and larger than 4 of 6 factors of P+1.

P+1=25 *...
Forum: And now for something completely different 2021-05-10, 12:58
Replies: 56
Views: 2,510
Posted By ATH
It was clearly a language communication issue: ...

It was clearly a language communication issue:
"We are checking SPRP in 3-4 bases first (the best we can do for this PRP.)"

I understood "(the best we can do for this PRP.)" as "That is all we...
Forum: And now for something completely different 2021-05-09, 21:21
Replies: 56
Views: 2,510
Posted By ATH
Thank you. I was actually responding to your...

Thank you.

I was actually responding to your line:
"We are checking SPRP in 3-4 bases first (the best we can do for this PRP.)"

which I found curious since you can also do Lucas test +...
Forum: And now for something completely different 2021-05-09, 17:26
Replies: 56
Views: 2,510
Posted By ATH
You can do a Lucas test with LLR ? (For some...

You can do a Lucas test with LLR ? (For some reason -q does not work for me in LLR 3.8.23)
cllr64.exe -d -oLucasPRPtest=1 input.txt

input.txt:
ABC(10^$a-1)/9
8177207

or the BPSW version of...
Forum: PrimeNet 2021-05-09, 11:00
Replies: 1
Views: 93
Posted By ATH
Yes, this is a known error with unknown cause: ...

Yes, this is a known error with unknown cause:
https://mersenneforum.org/showpost.php?p=577177&postcount=258
https://mersenneforum.org/showpost.php?p=577180&postcount=259
Forum: Data 2021-05-08, 15:29
Replies: 99
Views: 2,997
Posted By ATH
I think RDS mentioned once regarding the old ECM...

I think RDS mentioned once regarding the old ECM paper he wrote, that for ECM ideally time spent in step1 and step2 should be the same, and in some ideal implementation B2=c*B12. But that was for...
Forum: Lounge 2021-05-08, 12:26
Replies: 212
Views: 35,808
Posted By ATH
Maybe when we have created a Matrioshka brain...

Maybe when we have created a Matrioshka brain (https://en.wikipedia.org/wiki/Matrioshka_brain) .


If we consider this theory valid: https://primes.utm.edu/notes/faq/NextMersenne.html

then the...
Forum: PrimeNet 2021-05-08, 02:03
Replies: 15
Views: 463
Posted By ATH
It is probably intended this way and logical. You...

It is probably intended this way and logical. You are doing the first PRP test on the exponent, so you get PRP first time test credit, not PRP DC or LL DC credit.

If you want DC credit you have to...
Forum: Lounge 2021-05-05, 22:36
Replies: 40
Views: 2,765
Posted By ATH
Harry Mack gets a lot of Star Wars reference into...

Harry Mack gets a lot of Star Wars reference into this freestyle rap in 30sec 13:00 - 13:30:

Death Star, not a moon a space station, light speed, Millennium Falcon, Wookiee, Han Solo, Chewbacca,...
Forum: Data 2021-05-03, 08:45
Replies: 99
Views: 2,997
Posted By ATH
It is probably even less than 10% for 12 bits. I...

It is probably even less than 10% for 12 bits. I did some ecm tests years ago on constructed numbers with different size factors:
https://mersenneforum.org/showpost.php?p=470180&postcount=48

You...
Forum: Software 2021-05-02, 18:53
Replies: 290
Views: 22,508
Posted By ATH
Yeah, I know you are capturing the results coming...

Yeah, I know you are capturing the results coming in, I was wondering if it could be based on data in the database instead.

On the exponents with "real" P+1 factors: 92419...
Forum: Software 2021-05-02, 16:20
Replies: 290
Views: 22,508
Posted By ATH
Why do you need to be able to read them or see...

Why do you need to be able to read them or see their size? They are old factors, that just happened to be "rediscovered" because people are not using the correct syntax in worktodo.


I understand...
Forum: Data 2021-05-02, 12:20
Replies: 21
Views: 2,054
Posted By ATH
https://srbase.my-firewall.org/sr5/ TF...

https://srbase.my-firewall.org/sr5/



TF Mersenne is just a random subproject they decided to do?
Forum: Data 2021-05-02, 11:56
Replies: 99
Views: 2,997
Posted By ATH
Full 50k ECM means there is a 1/e ~ 37% risk we...

Full 50k ECM means there is a 1/e ~ 37% risk we missed a 25 digit factor if there is one, not quite the same as TF to 2^84 (26 digits).




It probably throttles, you can try to use ThrottleStop...
Forum: Software 2021-05-01, 18:22
Replies: 290
Views: 22,508
Posted By ATH
It has been showing in the factor only report...

It has been showing in the factor only report since you found it:

https://www.mersenne.org/report_pplus1/?f=1&all=1
Forum: Software 2021-05-01, 12:05
Replies: 290
Views: 22,508
Posted By ATH
https://www.mersenne.org/report_pplus1/?f=1&all=1...

https://www.mersenne.org/report_pplus1/?f=1&all=1

Only 14 of the 24 current listed factors are real P+1 factors. The rest are old factors found again or combination of old factors found as...
Forum: Cloud Computing 2021-04-30, 22:24
Replies: 14
Views: 437
Posted By ATH
The c5.large, c5a.large, c5d.large, c5n.large...

The c5.large, c5a.large, c5d.large, c5n.large instances are 1 full core (2 vCPU = 2 threads)
Forum: Cloud Computing 2021-04-30, 22:06
Replies: 14
Views: 437
Posted By ATH
Actually the $0.019 / hour is both spot instance...

Actually the $0.019 / hour is both spot instance and linux. If you use Windows and/or dedicated instance it will be much more expensive than $12.36 per 111M exponent.

I forgot to mention that...
Forum: Software 2021-04-30, 22:04
Replies: 290
Views: 22,508
Posted By ATH
I have UnreserveDays=9999. Not sure if it...

I have UnreserveDays=9999. Not sure if it actually uses that full value, but it does not complain and does not unreserve anything.
Forum: Cloud Computing 2021-04-29, 23:29
Replies: 14
Views: 437
Posted By ATH
I mostly run the smallest instances with 1 core:...

I mostly run the smallest instances with 1 core: c5.large, c5a.large, c5d.large, c5n.large also in us-east-2, they cost $0.019 per hour.

I just tested a 111M exponent at 20.6-21.1 ms/iter, so if...
Forum: Marin's Mersenne-aries 2021-04-29, 22:44
Replies: 975
Views: 85,912
Posted By ATH
It's up to you, I just thought with 1 Suspect + 1...

It's up to you, I just thought with 1 Suspect + 1 Unverified there is a higher risk of not matching than with 2 Unverified, and for exponents >100M each additional test requires more work than the...
Forum: Software 2021-04-29, 01:29
Replies: 290
Views: 22,508
Posted By ATH
Weird error in mprime 30.5b1 (or primenet server...

Weird error in mprime 30.5b1 (or primenet server error).

Factors for these 2 exponents got reported twice each: 3021587 and 3310193

and for some reason they got added twice to the PRP-CF...
Forum: Data 2021-04-29, 01:05
Replies: 565
Views: 89,542
Posted By ATH
Yeah, that is strange I had not noticed, since it...

Yeah, that is strange I had not noticed, since it was spamming my results.txt with PRP. It was on an AWS instance, and I only noticed it by coincidence, because I was upgrading it to 30.6b4.

Now I...
Forum: Data 2021-04-28, 23:27
Replies: 565
Views: 89,542
Posted By ATH
Ryan Propper found another factor and another PRP...

Ryan Propper found another factor and another PRP #356: M3917
Showing results 1 to 25 of 1000

 
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