mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > No Prime Left Behind

Reply
 
Thread Tools
Old 2013-03-30, 19:47   #34
Mini-Geek
Account Deleted
 
Mini-Geek's Avatar
 
"Tim Sorbera"
Aug 2006
San Antonio, TX USA

2·3·23·31 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
I seem to be searching all the primeless ranges on this drive so that everyone else can find the primes. There's been one prime in the last n=23K range; by far the worst range since the drive started. I wonder if all of my machines have gone bad at once.
Must be because I started crunching there on 2 cores...my luck's been pretty poor on this server, with 15704 tests (approx 1.5-2 primes expected; most of those tests were long ago when the numbers were smaller) and 0 primes.
Quote:
Originally Posted by MyDogBuster View Post
Probably setting up for a nice run shortly.
I'd like to think so, but that's a good example of gambler's fallacy. Crunching primes in NPLB, CRUS, etc. has taught me a great deal about probability and randomness: expect the unexpected. But don't be surprised when it plays out as the most likely scenario, either. And if you ever think you know what's going to happen based on past random events, you're (probably) wrong.

Last fiddled with by MyDogBuster on 2013-03-30 at 20:13 Reason: Correct my spelling error from above
Mini-Geek is offline   Reply With Quote
Old 2017-08-28, 01:04   #35
Mini-Geek
Account Deleted
 
Mini-Geek's Avatar
 
"Tim Sorbera"
Aug 2006
San Antonio, TX USA

102668 Posts
Default

I have confirmed that 405*2^1508592-1 is prime. I tried to submit it to the Top 5k before I realized it was already known.
Mini-Geek is offline   Reply With Quote
Old 2021-10-13, 04:36   #36
birtwistlecaleb
 
birtwistlecaleb's Avatar
 
Jun 2021

1708 Posts
Default

Reserving k 401 from n 1.5M to 1.6M

Last fiddled with by birtwistlecaleb on 2021-10-13 at 04:44
birtwistlecaleb is offline   Reply With Quote
Old 2021-10-13, 05:08   #37
kar_bon
 
kar_bon's Avatar
 
Mar 2006
Germany

3·991 Posts
Default

Riesel k=401 is reserved by NPLB Drive #13 and is already done to ~1.63M so far.
See the Wiki for currently available low k-values please.
kar_bon is offline   Reply With Quote
Old 2022-03-17, 00:11   #38
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

7×1,619 Posts
Default

This drive is complete to n=1700K.

n=1700K-1800K has been loaded into port 9000.
gd_barnes is online now   Reply With Quote
Old 2022-04-28, 20:26   #39
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

7·1,619 Posts
Default

This drive is complete to n=1800K.

n=1800K-1900K has been loaded into port 9000.
gd_barnes is online now   Reply With Quote
Old 2022-05-26, 19:26   #40
brucemoreg
 
brucemoreg's Avatar
 
May 2022

11102 Posts
Smile My 1st prime is Top 5000 :) :) :)

Thank you team drive #13!


NPLB port 9000, k=400-600, n=1M-2M
Starting Lucas Lehmer Riesel prime test of 435*2^1857332-1
Using AMD K10 FFT length 128K, Pass1=128, Pass2=1K
V1 = 9 ; Computing U0...done.
435*2^1857332-1 is prime! (559116 decimal digits) Time : 1376.078 sec.
[2022-05-20 06:36:49 PDT] G9000: 435*2^1857332-1 is prime
[2022-05-20 06:36:49 PDT] Total Time: 42:52:56 Total Work Units: 114 Special Results Found: 1
brucemoreg is offline   Reply With Quote
Old 2022-05-26, 21:36   #41
Trilo
 
Trilo's Avatar
 
"W. Byerly"
Aug 2013
81*2^3174353-1

7×19 Posts
Default

Quote:
Originally Posted by brucemoreg View Post
Thank you team drive #13!


NPLB port 9000, k=400-600, n=1M-2M
Starting Lucas Lehmer Riesel prime test of 435*2^1857332-1
Using AMD K10 FFT length 128K, Pass1=128, Pass2=1K
V1 = 9 ; Computing U0...done.
435*2^1857332-1 is prime! (559116 decimal digits) Time : 1376.078 sec.
[2022-05-20 06:36:49 PDT] G9000: 435*2^1857332-1 is prime
[2022-05-20 06:36:49 PDT] Total Time: 42:52:56 Total Work Units: 114 Special Results Found: 1
Congrats! Very nice find! :)
Trilo is offline   Reply With Quote
Old 2022-06-12, 07:34   #42
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

7×1,619 Posts
Default

This drive is complete to n=1900K.

n=1900K-2000K has been loaded into port 9000.
gd_barnes is online now   Reply With Quote
Old 2022-08-10, 06:27   #43
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

1133310 Posts
Default

Drive #13 is now complete! Thank you to everyone who participated!
gd_barnes is online now   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Team drive #6 k=600-800 n=600K-1M gd_barnes No Prime Left Behind 89 2011-03-10 12:34
Team drive #5: k=400-600 n=600K-1M gd_barnes No Prime Left Behind 135 2010-11-23 14:27
Team drive #4, 15 k's < 300 for n=600K-1M gd_barnes No Prime Left Behind 38 2008-10-22 16:20
Opinions on team drive #3 gd_barnes Conjectures 'R Us 8 2008-01-24 01:01
Don't Miss The First RPS Team Drive! Kosmaj Riesel Prime Search 451 2007-07-08 21:06

All times are UTC. The time now is 07:04.


Tue Sep 27 07:04:16 UTC 2022 up 40 days, 4:32, 0 users, load averages: 1.40, 1.36, 1.32

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