mersenneforum.org  

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

Reply
 
Thread Tools
Old 2010-03-02, 10:43   #1
hj47
 
hj47's Avatar
 
Oct 2008

10000002 Posts
Exclamation What work does YOUR processor do?

How do you split your CPU resources for GIMPS? I made a template using the work types - AUTO (whatever makes the most sense), LL, D, P-1, TF, ECM, WRP (world record primes) so you can show everyone. I am currently running:

Code:
Worker #0: LL
Worker #1: LL
Worker #2: LL
Worker #3: LL
I may very soon switch to a more 'useful' config of:

Code:
Worker #0: LL
Worker #1: D
Worker #2: P-1
Worker #3: TF
As much as I want to find a mersenne, I can't help but feel that giving some of my other cores some factoring and double-checking work to do would be more useful for GIMPS.

Last fiddled with by hj47 on 2010-03-02 at 11:02
hj47 is offline   Reply With Quote
Old 2010-03-02, 14:51   #2
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

121A16 Posts
Default

I think there are several answers depending on your perspective...

1. The more straight forward answer might be to pick the option "Whatever makes the most sense" and let the server pick

2. Whatever intrigues you the most: some like the thrill of finding a prime; some like lots of quick results with factoring; some like ...

3. Whatever your PC is best suited for: i.e. a 100 Mhz PC would take VERY long to do a LL test but performs TF-LMH quite well. If you have less than 500 MB RAM free you probably don't want to do P-1. This site can help you choose: http://mersenne-aries.sili.net/throughput.php

4. Whatever is requested help with: i.e. George has noted on another thread that he needs more workers on P-1 and DC and there are too many doing factoring. http://www.mersenneforum.org/showpos...&postcount=239

5. If you are into stats and standings you could pick a less popular work type like ECM and move up quickly.

Personally over the years I've been in each of the 5 above camps at one time or another. Right now I'm mostly in 4 (DC and P-1).
petrw1 is offline   Reply With Quote
Old 2010-03-02, 16:12   #3
garo
 
garo's Avatar
 
Aug 2002
Termonfeckin, IE

53148 Posts
Default

DC/DC/DC/P-1

TF is overpowered so unless you have a good reason to run it, do P-1 on the last core instead.
garo is offline   Reply With Quote
Old 2010-03-02, 17:04   #4
joblack
 
joblack's Avatar
 
Oct 2008
n00bville

52·29 Posts
Default

Quote:
Originally Posted by hj47 View Post
How do you split your CPU resources for GIMPS? I made a template using the work types - AUTO (whatever makes the most sense), LL, D, P-1, TF, ECM, WRP (world record primes) so you can show everyone. I am currently running:

Code:
Worker #0: LL
Worker #1: LL
Worker #2: LL
Worker #3: LL
I may very soon switch to a more 'useful' config of:

Code:
Worker #0: LL
Worker #1: D
Worker #2: P-1
Worker #3: TF
As much as I want to find a mersenne, I can't help but feel that giving some of my other cores some factoring and double-checking work to do would be more useful for GIMPS.
On my Windows machine I'm running

Worker #0: LL
Worker #1: LL
Worker #2: LL
Worker #3: LL
on my Linux machine I'm running one 100M LL on 4 cores.

It maybe not the optimal setting but I want to win the price ^^ ...
joblack is offline   Reply With Quote
Old 2010-03-02, 18:27   #5
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

223218 Posts
Default

Worker #0: PRP \
Worker #1: PRP > Five-or-Bust (it is now actually One-or-Bust)
Worker #2: PRP /
+
PFGW on CPU #3: PRP -> CRUS

consider the chances
Batalov is offline   Reply With Quote
Old 2010-03-02, 20:23   #6
CADavis
 
CADavis's Avatar
 
Jul 2005
Des Moines, Iowa, USA

17010 Posts
Default

not to nitpick, but shouldn't the template be:

Code:
Worker #1:
Worker #2:
Worker #3:
Worker #4:
since this is how Prime95 displays them?

or if you want to be more precise:

Code:
Core #0:
Core #1:
Core #2:
Core #3:
well for me since I am testing my overclock since I had to get a new motherboard (had two of the same model blow up, went to the next model up) I am running 4 double checks. But nominally I run
Code:
Worker #1: P-1
Worker #2: WRP
Worker #3: WRP
Worker #4: D
CADavis is offline   Reply With Quote
Old 2010-03-02, 21:43   #7
moebius
 
moebius's Avatar
 
Jul 2009
Germany

569 Posts
Default

Worker #0: LL
Worker #1: LL
Worker #2: LL
Worker #3: LL or P-1/TF
moebius is online now   Reply With Quote
Old 2010-03-02, 22:30   #8
Uncwilly
6809 > 6502
 
Uncwilly's Avatar
 
"""""""""""""""""""
Aug 2003
101×103 Posts

225318 Posts
Default

Quote:
Originally Posted by hj47 View Post
How do you split your CPU resources for GIMPS? I made a template using the work types - AUTO (whatever makes the most sense), LL, D, P-1, TF, ECM, WRP (world record primes) so you can show everyone.
There are 2 GIMPS types that you left off TF-LMH and 100ML-L. I think that those that run the latter are likely to use multiple cores per test.

All of the machines that I normally handle are:
Worker#1: TF-100M (by hand)
Worker#2: TF-100M

The other machines that are borgim (and not always working) are:
Worker#1: TF
Worker#2: TF
(because they are borg and may or may not be running at any given moment, TF is better [I know it is over subscribed]).
Uncwilly is offline   Reply With Quote
Old 2010-03-02, 22:39   #9
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

4,813 Posts
Default

I'm doing everything with my 10 cores.

I prefer ECM-F and P-1, the first for my research, the second per GIMPS needs.

Luigi
ET_ is offline   Reply With Quote
Old 2010-03-03, 11:09   #10
lycorn
 
lycorn's Avatar
 
Sep 2002
Oeiras, Portugal

2·36 Posts
Default

Unless you are really keen to find a prime, I would reccommend the setting proposed by garo on post #3: DC/DC/DC/P-1. These are the types of work GIMPS is in most need at the moment.
I am assuming your machine has an amount of memory suitable for P-1 work. If that is not the case, the fourth worker could either do DC, or, if you start noticing a slowdown due to memory access congestion, Trial Factoring.

Last fiddled with by lycorn on 2010-03-03 at 11:10
lycorn is offline   Reply With Quote
Old 2010-03-03, 14:35   #11
rx7350
 
rx7350's Avatar
 
Feb 2006
AR, US

2208 Posts
Default

On my slowest dual-core (AMD 4400) I run TF on one core, P-1 on the other.

Moving from slowest pc toward faster, on my next three dual cores (two PD-805s, and a PD-915) I run DC on one core, and P-1 on the other core.

The next two dual-cores (an E6400, and an E6700), I run first-time LL on both cores.

On the two quad-cores (Q9450, and an i7 920), I run first-time LL on three cores, and DC on the other core.

Out of 20 total cores - one TF, four P-1, five DC, and ten first-time LL. All are over-clocked from 10-30% . I have run multiple DCs on all of them to confirm reliability.

Last fiddled with by rx7350 on 2010-03-03 at 14:42
rx7350 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
I want a P4 processor Antonio PrimeNet 24 2012-11-28 21:07
Best Processor for AM3 JustinGC Hardware 6 2012-06-23 05:20
co-processor tha Hardware 6 2006-04-25 13:14
processor problems jebeagles Hardware 16 2004-09-19 12:51
VIA's C3 processor. What can it do? E_tron Hardware 2 2003-10-06 06:20

All times are UTC. The time now is 08:57.

Mon May 10 08:57:46 UTC 2021 up 32 days, 3:38, 0 users, load averages: 1.69, 1.85, 1.88

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.