mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Riesel Prime Search (https://www.mersenneforum.org/forumdisplay.php?f=59)
-   -   k=13236795 (https://www.mersenneforum.org/showthread.php?t=6529)

Kosmaj 2012-03-27 08:59

Hi Cedric

Congrats on yet another nice prime, and thanks for staying with us all these years! I just checked, the first post of this thread was posted on Oct. 30, 2006. :smile:

ValerieVonck 2012-03-27 10:57

@kosmaj, thx for the nice reply :)
When I take responsibility, I own up to it :)
And doing this project (off & on) I have learned much about myself
- planning
- responsibility
- patience

I'll keep on crunching for a while (first big milestone) up until 1M
Then I plan a hiatus, then I will restart the sieve for 1M to 50M

Best regards
C

ValerieVonck 2012-10-29 16:07

llr testing till 1M completed, no more new primes to report
sieving is started in the 1M -> 50M range
lresults will be uploaded soon

ValerieVonck 2012-11-01 10:16

Results available @ [URL="http://users.skynet.be/bk261826/lresults.txt"]http://users.skynet.be/bk261068/lresults.txt[/URL]

Kosmaj 2012-11-01 22:19

Hi Cedric

I cannot access that page:
[I]The server encountered an error while processing your request
Request: [url]http://users.skynet.be/bk261826/lresults.txt[/url]
Response: The page you are looking for could not be found [/I]

ValerieVonck 2012-11-02 01:20

[QUOTE=Kosmaj;316686]Hi Cedric

I cannot access that page:
[I]The server encountered an error while processing your request
Request: [url]http://users.skynet.be/bk261826/lresults.txt[/url]
Response: The page you are looking for could not be found [/I][/QUOTE]

oops it should be
[url]http://users.skynet.be/bk261068/lresults.txt[/url]

I wasn't awake yet ;)

Kosmaj 2012-11-02 06:25

Thanks, now it works!

ValerieVonck 2013-04-19 07:24

on the 27th of April, the candidates from 1M to 50M will be sieved to 25T.

Does anybody have an idea how to sieve the same file on different pc's??

Thank you

Thomas11 2013-04-19 08:51

[QUOTE=CedricVonck;337574]
Does anybody have an idea how to sieve the same file on different pc's??
[/QUOTE]

It depends on your sieving software:

If you are using [URL="https://sites.google.com/site/geoffreywalterreynolds/programs/sr1sieve"]sr1sieve[/URL], you can run different intervals [pmin-pmax] on the individual machines. All you have to do is to collect the factors found (using the "-f" switch).
For example:

[CODE]./sr1sieve -i input.txt -o output.txt -f factors.txt -p 1000000 -P 2000000[/CODE]

After a while you transfer the factors files to your master machine and update the sieve file using srfile, which is part of [URL="https://sites.google.com/site/geoffreywalterreynolds/programs/srsieve"]srsieve[/URL]:

[CODE]./srfile -g --known-factors factors.txt sievefile.txt[/CODE]

(The "-g" switch is to force the NewPGen file format.)


There might also be a similar procedure for NewPGen, but I haven't tried yet...

kar_bon 2013-04-19 11:02

[QUOTE=Thomas11;337575]There might also be a similar procedure for NewPGen, but I haven't tried yet...[/QUOTE]

NewPGen -> Services -> Sieve across several machines -> Duplicates
fill in
- the sievefile-name (npg-format)
- number of machines/files you need
- range of primes to sieve

It will create several files in npg-format with different p-startingpoints in the header.

After sieving you can combine all result-files with
NewPGen -> Services -> Sieve across several machines -> Merge.

VBCurtis 2013-04-19 23:04

newpgen is so slow for a single k compared to sr1sieve that Cedric must be using sr1sieve, right??


All times are UTC. The time now is 13:01.

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