mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Riesel Prime Search

Reply
 
Thread Tools
Old 2021-01-26, 12:01   #1002
Cruelty
 
Cruelty's Avatar
 
May 2005

23×7×29 Posts
Default status report

k=25 tested till n=5.66M
Cruelty is offline   Reply With Quote
Old 2021-02-02, 12:40   #1003
kuratkull
 
kuratkull's Avatar
 
Mar 2007
Estonia

2×71 Posts
Default

progress report:


k=193 at n=4.6M
k=195 at n=4.6M
k=197 at n=4.6M
kuratkull is offline   Reply With Quote
Old 2021-02-06, 14:46   #1004
Trilo
 
Trilo's Avatar
 
"W. Byerly"
Aug 2013
1423*2^2179023-1

103 Posts
Default

k=55 at 2.2M.
Trilo is offline   Reply With Quote
Old 2021-02-11, 08:52   #1005
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3×3,457 Posts
Default

Reserving k=213, 221, 255, and 285 to n=2M.

These k's are reserved but last had a status report over 6 years ago. The last prime reported on any of them was nearly 4 years ago. Apparently they are abandoned. Based on the primes reported many of them have probably already been tested to n=~2M so this will likely mostly be a doublecheck effort.

These are the only remaining k < 300 that are reported at n<2M so completing this would be a nice milestone for the project.

I will test (doublecheck?) these 4 k's for n=1M-2M as a followup to my doublecheck of all k<300 to n=1M that is nearly complete. It should only take a few weeks.

Karsten, would it make sense to go through your rieselprime.de page for k < 300 and release any individual reservations that are more than 3 years old ?
gd_barnes is offline   Reply With Quote
Old 2021-02-11, 14:43   #1006
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

4,787 Posts
Default

Did you try contacting the people who have them reserved?
VBCurtis is offline   Reply With Quote
Old 2021-02-11, 22:42   #1007
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

101000100000112 Posts
Default

Quote:
Originally Posted by VBCurtis View Post
Did you try contacting the people who have them reserved?
I did a due diligence on them:

k=213 reserved by Chaos13; last status on this k 2014-02-28; last prime reported on this k 2017-07-18; last time posting at RPS 2014-04-28; last known activity on Mersenneforum 2019-10-14

k=221 reserved by sjtjung; last status on this k 2014-09-13; no prime reported on this k; last time posting at RPS 2016-01-27; last known activity on Mersenneforum 2016-09-27

k=255 reserved by Kosmaj; last status on this k 2012-07-02; last prime reported on this k 2015-04-26; last time posting at RPS 2019-05-25; last known activity on Mersenneforum 2019-05-25

k=285 reserved by shanecruise; last status on this k 2013-05-21; last prime reported on this k 2013-04-03; last time posting at RPS 2013-05-21; last known activity on Mersenneforum 2014-03-23

I will go ahead and send all of them a PM although it seems unlikely that I will get a response.

Last fiddled with by gd_barnes on 2021-02-11 at 23:14
gd_barnes is offline   Reply With Quote
Old 2021-02-12, 21:48   #1008
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

101000100000112 Posts
Default

Karsten,

k=255 was already tested to n=2M.

See this post:
https://mersenneforum.org/showpost.p...&postcount=901

See the final post in this thread:
https://mersenneforum.org/showthread.php?t=16883

See the old Riesellist page:
http://kosmaj.sakura.ne.jp/rps/riesellist.html

Your Wiki page only has it tested to n=1.07M.

I will keep it reserved to n=2M as a complete doublecheck.
gd_barnes is offline   Reply With Quote
Old 2021-02-13, 01:24   #1009
Chaos13
 
Mar 2010

1210 Posts
Default

Gary- responded to you privately. Thanks for reaching out.
Chaos13 is offline   Reply With Quote
Old 2021-02-13, 01:29   #1010
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

10010101100112 Posts
Default

Quote:
Originally Posted by Chaos13 View Post
Gary- responded to you privately. Thanks for reaching out.
Is there an update for search depth? Are you still working on it?
That sort of info should not be kept in PM when we have this thread for it.
VBCurtis is offline   Reply With Quote
Old 2021-02-13, 01:50   #1011
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3·3,457 Posts
Default

Status on follow ups:

I got a PM response from Chaos. He is going to keep k=213. I have asked him to report his search depth here. He has reported several top-5000 primes for n>2M. I let him know my intent to doublecheck the k up to n=2M so I won't be doing anything that he hasn't already done.

No response on k=221. The last reported status at n=1.85M. I'm currently in the process of doublecheking n=1M-1.85M and will complete it to n=2M.

Shanecruise responded and is fine with me taking k=285. The last reported status is at n=1.64M. I will doublecheck n=1M-1.64M and will complete to n=2M. Work will begin after k=221.

After finding in the threads in several places that the search depth for k=255 is already at n=2M I did not follow-up with Kosmaj. I would not be stepping on any toes doing a doublecheck up to n=2M.
gd_barnes is offline   Reply With Quote
Old 2021-02-13, 05:49   #1012
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

4,787 Posts
Default

Gary-
She.

I haven't talked to sjtjung in a year or so; this is a good excuse for me to reach out to him. He was a student of mine fifteen years ago. I doubt he's still searching 221, but he's more likely still going on k=31.
VBCurtis is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Riesel base 3 reservations/statuses/primes KEP Conjectures 'R Us 1098 2021-04-18 21:07
Proth and Riesel Primes lukerichards Number Theory Discussion Group 7 2018-01-20 16:47
Riesel primes Primeinator Information & Answers 12 2009-07-19 23:30
Sierpinski/Riesel Base 5: Post Primes Here robert44444uk Sierpinski/Riesel Base 5 358 2008-12-08 16:28
Riesel.15k.org LLRnet Primes Found! SlashDude 15k Search 3 2004-06-14 16:07

All times are UTC. The time now is 03:54.

Mon May 17 03:54:20 UTC 2021 up 38 days, 22:35, 0 users, load averages: 1.48, 1.96, 2.25

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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.