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Search: Posts Made By: ATH
Forum: Software 2021-10-17, 03:19
Replies: 2
Views: 99
Posted By ATH
Prime95 30.7b3 cllr.exe 4.0.0 32bit (Windows) ...

Prime95 30.7b3
cllr.exe 4.0.0 32bit (Windows)
cllr.exe 3.8.24b3 32bit (Windows)
on an old 5960X all agree with your sllr64 4.0 results.

Prime95 30.7b3
{"status":"C", "k":9473, "b":2,...
Forum: Data 2021-10-13, 19:20
Replies: 813
Views: 108,753
Posted By ATH
My list made from GIMPS data shows 19,998 for...

My list made from GIMPS data shows 19,998 for 30.0:
unfactored.html (http://hoegge.dk/mersenne/unfactored.html)


Edit: Nevermind your mersenne.ca link also updated to 19,998.
Forum: Marin's Mersenne-aries 2021-10-09, 16:55
Replies: 619
Views: 108,068
Posted By ATH
I took:

I took:
Forum: Software 2021-10-03, 15:16
Replies: 74
Sticky: Prime95 30.7
Views: 4,618
Posted By ATH
It got stuck running benchmark this morning at...

It got stuck running benchmark this morning at 5am. "Pausing worker to run the needed benchmarks". It was doing P+1 on 31M (1600K FMA3) with 1 worker 8 cores. Prime95 30.7b1 on Windows 10.

Now 11...
Forum: Science & Technology 2021-09-29, 17:10
Replies: 271
Views: 22,291
Posted By ATH
In Denmark they are offering 3rd booster shot to...

In Denmark they are offering 3rd booster shot to those with extra health conditions and to health care workers, and they announced it will be offered to everyone 65+, but there is no timeline for...
Forum: Cloud Computing 2021-09-26, 12:23
Replies: 1,179
Views: 129,264
Posted By ATH
Pro+ sorry, it said so in the quote of my own...

Pro+ sorry, it said so in the quote of my own earlier post. I'm trying to figure out if Pro+ is worth it at all. If I could get 1 instance of A100 constantly I would gladly take it, but I doubt it :)...
Forum: Cloud Computing 2021-09-26, 01:42
Replies: 1,179
Views: 129,264
Posted By ATH
I have tested using only 1 instance per account...

I have tested using only 1 instance per account for a few days to see if I got better GPUs, if the T4s / K80s was a "punishment" for running 2 instances.
I got only T4s still the last few days even...
Forum: Lounge 2021-09-24, 21:24
Replies: 22
Views: 847
Posted By ATH
I just got an email from the power company where...

I just got an email from the power company where they are warning me that prices are going up. The next 3 months could be 30% higher than the same period last year, and that is saying something, as I...
Forum: Prime Gap Searches 2021-09-24, 06:10
Replies: 63
Views: 7,194
Posted By ATH
If n=p (mod p*ord(p)) then p*ord(p) < n ...

If n=p (mod p*ord(p)) then p*ord(p) < n even when p > sqrt(n), which I find a bit strange.

For example from the 2-spsp list:
6589845341971 = 485131 * 13583641

ord(13583641) = 485130 ...
Forum: Information & Answers 2021-09-21, 08:20
Replies: 5
Views: 567
Posted By ATH
Testing for primality and factorizing are 2...

Testing for primality and factorizing are 2 different tasks. The primality test for Mersenne Numbers is called the Lucas-Lehmer test and it can test for primality without searching for any factors,...
Forum: Cloud Computing 2021-09-17, 05:28
Replies: 1,179
Views: 129,264
Posted By ATH
This week I'm getting only T4 and K80 on Pro+. ...

This week I'm getting only T4 and K80 on Pro+. I'm not sure I want to pay $50 for that. It might be because I'm running 2 instances, I will test soon if I get P100/V100 if I only run 1 instance.
Forum: Data 2021-09-09, 21:27
Replies: 3,469
Views: 306,491
Posted By ATH
All exponents below 104 286 673 have been tested...

All exponents below 104 286 673 have been tested at least once.

104,286,673 is the 5,994,166th prime number, so we are very close to 1st time checking + factoring the first 6 million prime...
Forum: Cloud Computing 2021-09-08, 16:20
Replies: 14
Views: 972
Posted By ATH
I think you need to restart sessions completely...

I think you need to restart sessions completely after upgrading, and maybe it takes a little bit of time as well.

I was starting to get mostly T4's with occasional P100 on Pro nonplus(sed), and...
Forum: Lounge 2021-09-06, 16:16
Replies: 321
Views: 51,311
Posted By ATH
Here is a "countup" timer: ...

Here is a "countup" timer:
https://www.timeanddate.com/countdown/to?iso=20181207T043210&p0=769&msg=M82589933&font=cursive

So far this is the 3rd longest GIMPS gap. On Nov 19th 2021 it will be the...
Forum: Prime Gap Searches 2021-09-03, 22:13
Replies: 63
Views: 7,194
Posted By ATH
I guess I do not understand why psp-sieve is...

I guess I do not understand why psp-sieve is faster. It looks like you want to psp-sieve to 232.5 (except the first ~10K primes).
Even if ord(p) are precomputed, why is sieving mod (p*ord(p)) faster...
Forum: Prime Gap Searches 2021-09-03, 16:01
Replies: 63
Views: 7,194
Posted By ATH
If you sieve to sqrt(N) you can use a normal...

If you sieve to sqrt(N) you can use a normal sieve, you do not need psp-sieve or Fermat test? Everything remaining will be prime.

I was thinking of another idea:
When you jump ahead, for example...
Forum: Prime Gap Searches 2021-08-24, 15:56
Replies: 63
Views: 7,194
Posted By ATH
It would be faster with 1 SPRP + 1 Lucas than 12...

It would be faster with 1 SPRP + 1 Lucas than 12 SPRP. At least the CPU code with the GMP library 1 Lucas test is about equal to 6.4-6.6 SPRP tests at 264 + 2*1016.
Why does 12 SPRP tests prove...
Forum: y-cruncher 2021-08-17, 12:16
Replies: 68
Views: 49,798
Posted By ATH
62.8 trillion digits, probably \pi * 20 trillion...

62.8 trillion digits, probably \pi * 20 trillion digits.
Forum: Hobbies 2021-07-28, 06:03
Replies: 14
Views: 870
Posted By ATH
Reminds me of Miguel Induráin who won Tour de...

Reminds me of Miguel Induráin who won Tour de France 5 times 1991-1995. I remember they said he was so trained, that if he stopped training completely from one day to the next, by being strapped to a...
Forum: Software 2021-07-19, 15:24
Replies: 479
Views: 51,317
Posted By ATH
At 200K AVX-512 FFT I had to use...

At 200K AVX-512 FFT I had to use "ExtraSafetymargin=0.03" for it to use the next higher 240K FFT, but I guess it depends on how far from the border you are, and maybe on the current FFT.

The next...
Forum: Prime Gap Searches 2021-07-15, 12:18
Replies: 34
Views: 2,842
Posted By ATH
I switched my program from BPSW test...

I switched my program from BPSW test (Miller-Rabin + Lucas) to 2 x Miller-Rabin instead, and it is now twice as fast. I'm pretty sure BPSW test is overkill here. I'm using base 2 and then base 9375,...
Forum: Prime Gap Searches 2021-07-15, 11:36
Replies: 63
Views: 7,194
Posted By ATH
Gratz again! Did you really test everything...

Gratz again!

Did you really test everything up to 264 + 1.249 * 1017 ?
This is 5.36 times further from 264 than your last gap.

What speed are you getting on the 1080 TI ? Either in time per...
Forum: Software 2021-07-09, 17:44
Replies: 36
Views: 2,273
Posted By ATH
I'm not sure you can call this 12-channel RAM. It...

I'm not sure you can call this 12-channel RAM. It is 2 CPU's with 6 channels each. You should definitely run different tests on each physical CPU and each test will get it's own 6-channel RAM.
But...
Forum: Software 2021-07-09, 10:22
Replies: 36
Views: 2,273
Posted By ATH
I have only heard about up to 8-channel memory so...

I have only heard about up to 8-channel memory so far on the newest servers.
Searching for Dell 7920:...
Forum: Lounge 2021-07-06, 18:17
Replies: 25
Views: 1,285
Posted By ATH
I regularly drive from Copenhagen to Stockholm...

I regularly drive from Copenhagen to Stockholm (2-3 times a year). That is only ~640 km ~400 miles (7.5-8h including 1-2 breaks), but I feel that is plenty for me in a single drive, I'm not sure how...
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