What work does YOUR processor do?

hj47 · 2010-03-02, 10:43

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.

petrw1 · 2010-03-02, 14:51

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).

garo · 2010-03-02, 16:12

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.

joblack · 2010-03-02, 17:04

Quote:

Originally Posted by hj47

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 ^^ ...

Batalov · 2010-03-02, 18:27

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

CADavis · 2010-03-02, 20:23

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

moebius · 2010-03-02, 21:43

Worker #0: LL
Worker #1: LL
Worker #2: LL
Worker #3: LL or P-1/TF

Uncwilly · 2010-03-02, 22:30

Quote:

Originally Posted by hj47

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]).

ET_ · 2010-03-02, 22:39

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

lycorn · 2010-03-03, 11:09

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.

rx7350 · 2010-03-03, 14:35

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.

2010-03-02, 20:23	#6
CADavis Jul 2005 Des Moines, Iowa, USA AA₁₆ Posts	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

2010-03-03, 11:09	#10
lycorn Sep 2002 Oeiras, Portugal 1441₁₀ Posts	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

2010-03-03, 14:35	#11
rx7350 Feb 2006 AR, US 220₈ Posts	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

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

2010-03-02, 10:43	#1
hj47 Oct 2008 2⁶ Posts	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

2010-03-02, 14:51	#2
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 2³·3⁴·7 Posts	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).

2010-03-02, 16:12	#3
garo Aug 2002 Termonfeckin, IE 3·919 Posts	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.

2010-03-02, 18:27	#5
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9259₁₀ Posts	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

2010-03-02, 21:43	#7
moebius Jul 2009 Germany 547₁₀ Posts	Worker #0: LL Worker #1: LL Worker #2: LL Worker #3: LL or P-1/TF

2010-03-02, 22:39	#9
ET_ Banned "Luigi" Aug 2002 Team Italia 12B7₁₆ Posts	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