mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Software

Reply
 
Thread Tools
Old 2011-02-08, 15:00   #23
Prime95
P90 years forever!
 
Prime95's Avatar
 
Aug 2002
Yeehaw, FL

24·32·53 Posts
Default

Quote:
Originally Posted by Prime95 View Post
I tried installing 32-bit Debian and soon descended into libcurl dependency hell.
I found my notes about how to get out of dependency hell. The 32-bit Linux version is now available!

The 32-bit version was built on Ubuntu 10.04, the 64-bit version was built on Ubuntu 10.10. If needed I can install 64-bit Ubuntu 10.04 and rebuild the 64-bit version. Just let me know if you run into glibc problems.
Prime95 is offline   Reply With Quote
Old 2011-02-08, 18:45   #24
James Heinrich
 
James Heinrich's Avatar
 
"James Heinrich"
May 2004
ex-Northern Ontario

66568 Posts
Default

I'll repeat my minor feature request for the next version:
When doing P-1 work as Pfactor=, it reports like this:
Code:
[Feb 8 13:37] Optimal P-1 factoring of M58020713 using up to 4608MB of memory.
[Feb 8 13:37] Assuming no factors below 2^69 and 2 primality tests saved if a factor is found.
[Feb 8 13:37] Optimal bounds are B1=685000, B2=18837500
[Feb 8 13:37] Chance of finding a factor is an estimated 6.38%
Which is good. But if I specify the bounds with Pminus1=, it does not give the probability:
Code:
[Feb 8 13:37] P-1 on M334000013 with B1=8250000, B2=250000000
That's all it says. Can you please add the line that says "Chance of finding a factor is an estimated 7.39%"?

Last fiddled with by James Heinrich on 2011-02-08 at 18:45
James Heinrich is offline   Reply With Quote
Old 2011-02-08, 19:09   #25
tichy
 
Nov 2010

22×19 Posts
Default

Shouldn't the gwnum.a library contain the gwnum.o object ? I tried the official makefiles and it seems that its absence is causing ld to fail. OTOH, when I use the cmake build system, where gwnum.c is compiled in the process, everything links ok.
My bad - forgot about the makefile in the gwnum folder.

Last fiddled with by tichy on 2011-02-08 at 19:37
tichy is offline   Reply With Quote
Old 2011-02-08, 20:25   #26
tichy
 
Nov 2010

22×19 Posts
Default

Maybe the libcurl static linking dependencies problems could be mitigated by having mprime sources being distributed along with libcurl ones as a single archive. There are many projects employing such scheme, so maybe mprime could follow such approach too. Bulding mprime would involve creating static libcurl along the way.
tichy is offline   Reply With Quote
Old 2011-02-08, 22:52   #27
Prime95
P90 years forever!
 
Prime95's Avatar
 
Aug 2002
Yeehaw, FL

11101110100002 Posts
Default

Quote:
Originally Posted by James Heinrich View Post
I'll repeat my minor feature request for the next version. Can you please add the line that says "Chance of finding a factor is an estimated 7.39%"?
That would involve changing the P-1 worktodo line. I need to know how far the number has been factored to give an accurate probability.
Prime95 is offline   Reply With Quote
Old 2011-02-08, 23:08   #28
James Heinrich
 
James Heinrich's Avatar
 
"James Heinrich"
May 2004
ex-Northern Ontario

DAE16 Posts
Default

Quote:
Originally Posted by Prime95 View Post
That would involve changing the P-1 worktodo line. I need to know how far the number has been factored to give an accurate probability.
Any harm in adding that as an optional 8th parameter? (Pminus1=[id,]k,b,n,c,B1,B2[,tf])
James Heinrich is offline   Reply With Quote
Old 2011-02-09, 13:25   #29
Christenson
 
Christenson's Avatar
 
Dec 2010
Monticello

111000000112 Posts
Default

Quote:
Originally Posted by Christenson View Post
Hi Prime95...
Elsewhere, you suggested I try 26.4 for not getting six cores automagically recognized...I haven't been able to do that just yet...should I just jump to 26.5 and try that?

Meanwhile, six cores crunch away...real LL results in a month or so....patience, patience...
Quote:
Originally Posted by Prime95 View Post
Go straight to 26.5 unless you're using Linux 32-bit. I hope to get that built tomorrow.
On a six-core, 64 bit machine, I need help understanding why I might want to fool with 32 bit....except as a developer of 32-bit things.
Christenson is offline   Reply With Quote
Old 2011-02-09, 13:33   #30
James Heinrich
 
James Heinrich's Avatar
 
"James Heinrich"
May 2004
ex-Northern Ontario

2·17·103 Posts
Default

Quote:
Originally Posted by Christenson View Post
On a six-core, 64 bit machine, I need help understanding why I might want to fool with 32 bit
You don't. 32-bit is only for ancient beasts that can't run 64-bit.
James Heinrich is offline   Reply With Quote
Old 2011-02-09, 15:21   #31
Wizzard
 
Feb 2011
Bratislava

1B16 Posts
Default

Stupid question, but, why is 26.5 size 25 MB and 25.11 only 5 MB? :)
Wizzard is offline   Reply With Quote
Old 2011-02-09, 17:14   #32
Brain
 
Brain's Avatar
 
Dec 2009
Peine, Germany

331 Posts
Default

Quote:
Originally Posted by Wizzard View Post
Stupid question, but, why is 26.5 size 25 MB and 25.11 only 5 MB? :)
More optimizations. This question had been answered before somewhere else in this forum in more detail.
Brain is offline   Reply With Quote
Old 2011-02-09, 17:32   #33
James Heinrich
 
James Heinrich's Avatar
 
"James Heinrich"
May 2004
ex-Northern Ontario

66568 Posts
Default

Quote:
Originally Posted by Wizzard View Post
Stupid question, but, why is 26.5 size 25 MB and 25.11 only 5 MB? :)
Previously discussed in other v25.x threads, such as here:
http://www.mersenneforum.org/showthr...089#post238089
James Heinrich is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Prime95 version 27.3 Prime95 Software 148 2012-03-18 19:24
Prime95 version 26.3 Prime95 Software 76 2010-12-11 00:11
Prime95 version 25.5 Prime95 PrimeNet 369 2008-02-26 05:21
Prime95 version 25.4 Prime95 PrimeNet 143 2007-09-24 21:01
When the next prime95 version ? pacionet Software 74 2006-12-07 20:30

All times are UTC. The time now is 10:34.


Mon Oct 18 10:34:52 UTC 2021 up 87 days, 5:03, 0 users, load averages: 1.41, 1.46, 1.51

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.