mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > Lone Mersenne Hunters

Reply
 
Thread Tools
Old 2008-08-22, 05:01   #1
derekg
 
derekg's Avatar
 
Jul 2003

2×23 Posts
Default 50.5-51.0M to 64bit

About 11930 exponents. Should be done in about 2-3 months. If needed earlier, I'll give up the range.

Derek
derekg is offline   Reply With Quote
Old 2008-08-22, 15:26   #2
1997rj7
 
1997rj7's Avatar
 
Sep 2003

22×3×29 Posts
Default

I estimate that it will be about 50 days before Primenet gets to that range. You should either choose a range a little higher, or overclock your machines more.
1997rj7 is offline   Reply With Quote
Old 2008-09-03, 04:36   #3
derekg
 
derekg's Avatar
 
Jul 2003

2×23 Posts
Default

The range is 23% done.

Also, why is primenet handing out higher factoring candidates instead of going in order from smallest to largest?

Derek
derekg is offline   Reply With Quote
Old 2008-09-03, 05:29   #4
S485122
 
S485122's Avatar
 
Sep 2006
Brussels, Belgium

110001111012 Posts
Default

But PrimeNet is handling out exponents from smallest to largest. Some quirks in the statistics may confuse the issue :

- The v4 server is still using the old factoring bounds, Prime95 is not, that is why it seems as if a lot of exponents from 35M to 47M seem to need more factoring (the old limit to factor to 69 started at 35200000, the new is 47450000.)

- the v5 server is synchronised manually with the v4 server.

- a lot of exponents are assigned and waiting to be treated by the users or to expire after 60 days.

All in all looking at the statistics I can not understand how you came to the conclusion that
Quote:
primenet is handing out higher factoring candidates instead of going in order from smallest to largest?
Jacob
S485122 is offline   Reply With Quote
Old 2008-09-03, 06:34   #5
derekg
 
derekg's Avatar
 
Jul 2003

2×23 Posts
Default

http://www.mersenne.org/primenet/

If you look at the stats page there is alot of exponents waiting to be assigned from 44.5-49.7. Am I looking at it wrong or is there something else?

Derek
derekg is offline   Reply With Quote
Old 2008-09-03, 07:14   #6
ckdo
 
ckdo's Avatar
 
Dec 2007
Cleves, Germany

2·5·53 Posts
Default

Take a look at the range 44.5M-44.6M, for example. There are supposedly 2044 exponents available for factoring in that range. If you want a list, the v5 server can provide one:

http://v5www.mersenne.org/report_fac...=1&B1=Get+Data

As can be seen from the URL, these are all exponents which have been trial factored to 68 bits (or less). Like Jacob said: Newer client versions will perform trial factoring to 68 bits for exponents in the 35.2M-47.45M range, older ones will factor to 69 bits.

So, since these exponents haven't been factored to 69 bits yet, they are still considered available. However, since the v4 server has no idea if a potential client would factor these exponents to 69 bits, they are not being dealt out again (the v5 server might behave differently).

When the LL test wavefront hits these exponents, newer clients will do P-1 testing and then run LL tests. Older clients will first factor to 69 bits, then do P-1 testing, and finally run LL tests. The assignment is identical in both cases.

HTH
Carsten

Last fiddled with by ckdo on 2008-09-03 at 07:19 Reason: Confused old and new *slap*
ckdo is offline   Reply With Quote
Old 2008-10-08, 13:59   #7
derekg
 
derekg's Avatar
 
Jul 2003

2×23 Posts
Default Range Done

Range is complete results submitted. 203 factors found.

Derek
derekg is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
mprime on Odroid 64bit ET_ Software 2 2017-02-24 15:42
what does the 64bit version get me? crash893 Software 3 2010-03-25 09:58
64bit prime 95 adminc PrimeNet 7 2008-10-16 00:33
GMP 64bit ATH Software 5 2008-06-19 01:48
64bit cpu's crash893 Software 60 2006-07-19 18:10

All times are UTC. The time now is 18:23.

Thu Nov 26 18:23:48 UTC 2020 up 77 days, 15:34, 3 users, load averages: 1.29, 1.32, 1.34

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.