mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.40 seconds.
Search: Posts Made By: kriesel
Forum: kriesel 2022-08-07, 17:48
Replies: 9
Views: 3,163
Posted By kriesel
Near-palindromic exponents

Near palindromes differ by one character from a palindrome. These will be more numerous than palindrome exponents. All the following concerns base-ten exponent representations.

Consider an...
Forum: kriesel 2022-08-07, 17:06
Replies: 32
Views: 31,013
Posted By kriesel
Loss of periodic console output, logging to gpuowl.log, and Jacobi checks

The issue was observed on Windows 10, a Radeon VII GPU, and gpuowl v6.11-380-g79ea0cc.

If you're only interested in how to resolve the issue, skip to the last full paragraph, which precedes the...
Forum: Marin's Mersenne-aries 2022-08-07, 14:31
Replies: 41
Views: 4,375
Posted By kriesel
Combined list update: Predict Mxx lacking...

Combined list update: Predict Mxx lacking completed DC, and dubious claims lacking completed DC, but within range of feasible P-1 factoring, yields 3 uncompleted exponents (for now). Current status...
Forum: Marin's Mersenne-aries 2022-08-05, 18:14
Replies: 9
Views: 73,465
Posted By kriesel
Normally, yes, PRP=1,2,333044087...

Normally, yes, PRP=1,2,333044087 (https://www.mersenne.org/report_exponent/?exp_lo=333044087&full=1),-1 would be the way to go, not doublecheck.
But this is part of the small sample of 100Mdigit...
Forum: Marin's Mersenne-aries 2022-08-05, 17:59
Replies: 11
Views: 2,226
Posted By kriesel
DoubleCheck=332196607...

DoubleCheck=332196607 (https://www.mersenne.org/report_exponent/?exp_lo=332196607&full=1),81,1 assigned ll 2021-02-13, last update 2021-02-13, zero progress
DoubleCheck=332209313...
Forum: PrimeNet 2022-08-04, 16:41
Replies: 3
Views: 211
Posted By kriesel
(Seconding) LL first tests are more likely...

(Seconding)

LL first tests are more likely to be in error than PRP with GEC. So DC of those early would be good.

DC by PRP with proof generation (of PRP or LL first test) is the preferred...
Forum: Marin's Mersenne-aries 2022-08-04, 14:03
Replies: 892
Views: 143,422
Posted By kriesel
Taken: DoubleCheck=74175287...

Taken:
DoubleCheck=74175287 (https://www.mersenne.org/report_exponent/?exp_lo=74175287&full=1),75,1
Forum: Soap Box 2022-08-04, 13:38
Replies: 390
Views: 19,564
Posted By kriesel
In JFK's day, "made in the USA" still dominated....

In JFK's day, "made in the USA" still dominated. Now it's mostly "made in China". Imagine the supply chain issues that would ensue promptly upon the onset of combat over Taiwan....
Forum: GpuOwl 2022-08-04, 00:48
Replies: 2,778
Views: 394,639
Posted By kriesel
Windows 11 Task Manager sees mfaktc activity on a...

Windows 11 Task Manager sees mfaktc activity on a GPU, but not gpuowl on the same GPU at the same time.
The attached image shows mfaktc running on a GTX 1050Ti, 3d at 100%. It drops to 90% as does...
Forum: NFS@Home 2022-08-03, 15:22
Replies: 3
Views: 113
Posted By kriesel
No idea if linear algebra has been attempted...

No idea if linear algebra has been attempted before on Google Colab.

But if its state, logs & code fit in 15GiB, storing checkpoint data could be done on free Google Drive. If more space is...
Forum: Marin's Mersenne-aries 2022-08-03, 05:50
Replies: 892
Views: 143,422
Posted By kriesel
Taken: ...

Taken:
CERT=0000000000000000000000002714F8AB,1,2,655685803 (https://www.mersenne.org/report_exponent/?exp_lo=655685803&full=1),-1,640319
CERT=000000000000000000000000292090BD,1,2,690000061...
Forum: GpuOwl 2022-07-31, 18:18
Replies: 2,778
Views: 394,639
Posted By kriesel
I conclude based on the following attachment from...

I conclude based on the following attachment from a Windows 10 system with an IGP as primary graphics, and 3 discrete GPUs each running full out per GPU-Z, that Win10 Task Manager does not show...
Forum: GpuOwl 2022-07-31, 14:01
Replies: 2,778
Views: 394,639
Posted By kriesel
Welcome to the forum, and to GPU GIMPS computing....

Welcome to the forum, and to GPU GIMPS computing. Your English seems to me quite good in the quoted post, and that is appreciated. You may find some of the reference info...
Forum: Lounge 2022-07-30, 23:24
Replies: 375
Views: 70,188
Posted By kriesel
No one, yet. But after over almost all of...

No one, yet. But after over almost all of recorded history, of the discovered Mp count lagging the Wagstaff conjecture's implications for count versus search limit, since Mp#51 was found a few years...
Forum: Software 2022-07-30, 18:49
Replies: 655
Views: 56,547
Posted By kriesel
And to add to what Batalov already posted,...

And to add to what Batalov already posted, least-smooth (having larger largest prime factor) fft length tend to be less efficient, while power of 2 fft lengths are often very efficient relative to...
Forum: Lounge 2022-07-30, 15:50
Replies: 375
Views: 70,188
Posted By kriesel
It's a record I expect to be exceeded repeatedly...

It's a record I expect to be exceeded repeatedly going forward. I made an extrapolation (https://www.mersenneforum.org/showpost.php?p=502995&postcount=11) in late 2018 of completion of first testing...
Forum: Information & Answers 2022-07-28, 22:46
Replies: 5
Views: 352
Posted By kriesel
All of it. Understanding the process is a good...

All of it. Understanding the process is a good thing. Understanding that Cert work is a tiny fraction of the total effort, that there are requirements to get the assignments, including lucky timing...
Forum: Information & Answers 2022-07-28, 22:17
Replies: 5
Views: 352
Posted By kriesel
Certs are far faster than PRP test for the same...

Certs are far faster than PRP test for the same exponent, by a factor of about 2ProofPower. Optimal proof power is ~9 for PRP DC (~62M), ~10 for PRP first test wavefronts (~110M). So one might expect...
Forum: Lounge 2022-07-28, 14:19
Replies: 1,967
RIP
Views: 235,565
Posted By kriesel
Tony Dow

Actor on Leave it to Beaver, 2022-07-27 https://www.cnn.com/2022/07/27/entertainment/tony-dow-obit/index.html
see also https://mersenneforum.org/showthread.php?t=27973
Forum: Lounge 2022-07-28, 13:49
Replies: 13
Views: 264
Posted By kriesel
In the long run Sol swells and Terra sizzles.

In the long run Sol swells and Terra sizzles.
Forum: Miscellaneous Math 2022-07-27, 13:34
Replies: 7
Views: 590
Posted By kriesel
See also Concepts in GIMPS trial factoring (TF)...

See also Concepts in GIMPS trial factoring (TF) https://www.mersenneforum.org/showpost.php?p=508523&postcount=6
Forum: Miscellaneous Math 2022-07-27, 12:28
Replies: 7
Views: 590
Posted By kriesel
The small-primes array is reusable on different...

The small-primes array is reusable on different bit levels or Mersenne numbers, since its size therefore content depend only on maktx.ini tuning parameters.
The factor candidates must be generated...
Forum: Miscellaneous Math 2022-07-27, 11:23
Replies: 7
Views: 590
Posted By kriesel
In post one you refer to using Boolean arrays....

In post one you refer to using Boolean arrays. https://www.scaler.com/topics/boolean-in-c/ indicates those use a byte for storage.
Mfaktx use bit maps for sieving for maximum storage efficiency. I...
Forum: Lounge 2022-07-27, 03:05
Replies: 13
Views: 264
Posted By kriesel
It reminds me of this brilliant response....

It reminds me of this brilliant response. https://www.mentalfloss.com/article/562400/reports-mark-twains-quote-about-mark-twains-death-are-greatly-exaggerated...
Forum: Lounge 2022-07-27, 02:12
Replies: 13
Views: 264
Posted By kriesel
As have numerous other sites. An updated page at...

As have numerous other sites. An updated page at the NY Post (https://nypost.com/2022/07/26/leave-it-to-beaver-star-tony-dow-dead-at-77/) indicates the mistake originated with his wife. Others...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 10:40.


Mon Aug 8 10:40:29 UTC 2022 up 32 days, 5:27, 1 user, load averages: 0.77, 1.03, 1.09

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, 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.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔