mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.45 seconds.
Search: Posts Made By: ATH
Forum: GpuOwl 2020-10-21, 13:52
Replies: 2,535
Views: 156,749
Posted By ATH
It is no surprise really:...

It is no surprise really: https://en.wikipedia.org/wiki/GeForce_30_series

Gpuowl and CUDALucas uses "double precision", and 3090 has only 1/32 the double precision performance compared to single...
Forum: Information & Answers 2020-10-21, 09:49
Replies: 3
Views: 211
Posted By ATH
From the last prime press release: ...

From the last prime press release:



https://www.mersenne.org/primes/?press=M82589933
Forum: Marin's Mersenne-aries 2020-10-18, 11:44
Replies: 781
Views: 31,965
Posted By ATH
If you choose "double-check prime test" in the...

If you choose "double-check prime test" in the menu or add lines like Test=<exponent>,74,1 v30.3 will still run LL DC. The only way to run PRP tests in the LL DC range is reserving them as LL DC and...
Forum: Marin's Mersenne-aries 2020-10-18, 00:50
Replies: 781
Views: 31,965
Posted By ATH
Ready for a TC but will probably be handed out...

Ready for a TC but will probably be handed out randomly quickly: 53988203
Forum: Math 2020-10-17, 14:27
Replies: 14
Views: 422
Posted By ATH
87 Mersenne semi primes known so far. The...

87 Mersenne semi primes known so far.

The last 23 from M86371 to M10443557 are "semi probable primes" or "probable semi primes" (biggest factors are PRP).


https://www.mersenne.ca/prp.php

...
Forum: PrimeNet 2020-10-14, 08:15
Replies: 72
Views: 2,190
Posted By ATH
I'm not sure why you keep doing TF in those...

I'm not sure why you keep doing TF in those ranges when we keep making these threads complaining about those TF assignments? TF is not needed in Cat0+1+2 ranges.
Forum: PrimeNet 2020-10-13, 21:16
Replies: 72
Views: 2,190
Posted By ATH
Server should block TF in Cat 0+1 and probably...

Server should block TF in Cat 0+1 and probably Cat 2 (and maybe Cat 3?) and it should give no AID on the TF assignments either from manual assignment or through Prime95/mprime. Particularly since all...
Forum: PrimeNet 2020-10-13, 15:13
Replies: 72
Views: 2,190
Posted By ATH
I doubt there is a limit set on all exponents...

I doubt there is a limit set on all exponents that is up to date with the GPU factoring limits.
There was back in the day when only Prime95/mprime was used for factoring.

Plus it would block...
Forum: PrimeNet 2020-10-12, 20:46
Replies: 72
Views: 2,190
Posted By ATH
Would it be hard to make the server deny any TF...

Would it be hard to make the server deny any TF assignments in like 53M-59M and 93M-108M ?
Forum: PrimeNet 2020-10-11, 00:25
Replies: 2,026
Views: 150,516
Posted By ATH
Amazing there are 10 v4 clients still. Version5...

Amazing there are 10 v4 clients still. Version5 started in 2008 around October if I remember correctly, so 12 years exactly.

Here are the stats by operating system and by version. Version 30.x...
Forum: Software 2020-10-10, 11:17
Replies: 459
Sticky: Prime95 v30.3
Views: 26,800
Posted By ATH
If you get a mismatch in LL DC and you want to...

If you get a mismatch in LL DC and you want to know if yours is good, you can always ask if someone wants to do a triple check right away in this thread:...
Forum: PrimeNet 2020-10-09, 21:02
Replies: 2,026
Views: 150,516
Posted By ATH
Ehh now Curtisc has approximately the same...

Ehh now Curtisc has approximately the same assignments?

https://www.mersenne.org/assignments/?exp_lo=52000000&exp_hi=54400000&execm=1&exdchk=1&exfirst=1&exp1=1
Forum: Miscellaneous Math 2020-10-07, 18:02
Replies: 7
Views: 240
Posted By ATH
You are both correct, the extra 14 values are...

You are both correct, the extra 14 values are just the trivial composites mod 3 and mod 5. Did not really think about that, I just always used the 16 values (mod 120), but I could have also used +/-...
Forum: Miscellaneous Math 2020-10-07, 17:47
Replies: 7
Views: 240
Posted By ATH
No, the 16 values (mod 120) are more restrictive....

No, the 16 values (mod 120) are more restrictive.

+/- 1 (mod 8) would give 30 values (mod 120):
1 7 9 15 17 23 25 31 33 39 41 47 49 55 57 63 65 71 73 79 81 87 89 95 97 103 105 111 113 119
Forum: Miscellaneous Math 2020-10-07, 14:45
Replies: 7
Views: 240
Posted By ATH
Mersenne factors 2*k*p+1

All primes q>3 can be written on the form q=2*k*p + 1 for some k>0 and some prime p, and many primes q can be written like that in several different ways.
The number of different ways is the number...
Forum: Lounge 2020-10-07, 10:42
Replies: 53
Views: 1,665
Posted By ATH
The exponent is not assigned to you on the server...

The exponent is not assigned to you on the server "PrimeNet error 40: No assignment".

It is assigned to GPU72 for factoring and someone else might take it before you finish:103374163

103M is in...
Forum: News 2020-10-06, 15:31
Replies: 311
Views: 23,100
Posted By ATH
Yes, it would be a bigger discovery to find a PRP...

Yes, it would be a bigger discovery to find a PRP that was not prime at these sizes than finding the next Mersenne Prime.
But I just wanted to stress that PRP test cannot prove primes but...
Forum: News 2020-10-06, 14:38
Replies: 311
Views: 23,100
Posted By ATH
PRP test = probable prime test, so if positive...

PRP test = probable prime test, so if positive (zero residue) it is "probably" prime.
Lucas Lehmer test (LL) proves it is prime if you get a zero residue. Both tests are in Prime95/mprime, but we...
Forum: News 2020-10-06, 13:25
Replies: 311
Views: 23,100
Posted By ATH
PRP tests proves composites (compositeness?),...

PRP tests proves composites (compositeness?), which is all we need in >99.99% of the exponents.

Then only if the PRP tests fails to shows composites, and shows a probable prime, do we need to run...
Forum: FermatSearch 2020-10-03, 14:01
Replies: 12
Views: 659
Posted By ATH
Ok, so #2 on the list is not valid then, there is...

Ok, so #2 on the list is not valid then, there is a software that can handle it: Mlucas.

Since Ernst got an iteration time on F33, Mlucas must have big enough FFT to handle it, and now that I...
Forum: FermatSearch 2020-10-03, 03:37
Replies: 12
Views: 659
Posted By ATH
Actually Prime95 also have 64M AVX512 FFT, and it...

Actually Prime95 also have 64M AVX512 FFT, and it can probably go a bit higher than 1.14G exponents I would guess, have not tested.
I have not checked FMA FFT recently in Prime95, but it goes to at...
Forum: FermatSearch 2020-10-02, 19:05
Replies: 12
Views: 659
Posted By ATH
It is ~8.6 times as many iterations as the 1G...

It is ~8.6 times as many iterations as the 1G exponent, but it would require a much much larger FFT size, so each iteration would take much much longer. Not sure how much longer but total running...
Forum: Data 2020-10-01, 18:51
Replies: 3,335
Views: 217,042
Posted By ATH
It happened at 6am UTC on Tuesday Sep 29th: ...

It happened at 6am UTC on Tuesday Sep 29th:
2020-09-29 05 UTC 29,999,248
2020-09-29 06 UTC 30,000,015

Right now we are at +53201 factors in the last 30 days. At that rate your 20M unfactored...
Forum: PrimeNet 2020-09-30, 06:42
Replies: 72
Views: 2,190
Posted By ATH
Yeah, it does not sound like they are interested...

Yeah, it does not sound like they are interested in changing the assignment code, so if we get TF assignments in those categories that are not completed for weeks, we will have to poach them in an...
Forum: PrimeNet 2020-09-30, 05:37
Replies: 72
Views: 2,190
Posted By ATH
Ok, if you finish them that fast it is not toooo...

Ok, if you finish them that fast it is not toooo bad, but still the whole thresholds and categories were implemented to keep low DC and low LL assignments from moving quickly. TF assignments blocks...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 02:20.

Mon Oct 26 02:20:40 UTC 2020 up 45 days, 23:31, 0 users, load averages: 1.77, 1.80, 1.80

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.