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Old 2005-07-22, 09:56   #1
OmbooHankvald
 
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May 2005
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Arrow Two PC's looking for part-time work

Hi. I have an Athlon 2500+ (which doesn't support SSE2 ) and a Pentium M 1600 GHz laptop (which supports SSE2) on which I'm willing to install some DC stuff. I was wondering if you had any suggestions? There is a few restrictions though:

* They are mostly only turned on when they are used (not 24/7)

* Preferably a project with a definite goal (I guess that rules out 15k and Cunningham)

Any projects where these two would be a considerable help?

OH
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Old 2005-07-22, 11:38   #2
ET_
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Quote:
Originally Posted by OmbooHankvald
Hi. I have an Athlon 2500+ (which doesn't support SSE2 ) and a Pentium M 1600 GHz laptop (which supports SSE2) on which I'm willing to install some DC stuff. I was wondering if you had any suggestions? There is a few restrictions though:

* They are mostly only turned on when they are used (not 24/7)

* Preferably a project with a definite goal (I guess that rules out 15k and Cunningham)

Any projects where these two would be a considerable help?

OH
ECM work, I guess, ElevenSmooth, Lone Mersenne Hunters.
And of course Project Billion Digits

Luigi
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Old 2005-07-22, 12:22   #3
Wacky
 
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Quote:
Originally Posted by OmbooHankvald
* Preferably a project with a definite goal (I guess that rules out 15k and Cunningham)
I'm curious why you consider the Cunningham Tables an inappropriate goal.
Depending on how you phrase it, there are certainly defined goals within the overall project.

I would venture to say that there are very few worthwhile DC goals that are really finite. For example, (barring theoretical work that proves otherwise) you will never find the last Mersenne Prime or design the ultimate drug. It's not enough to put a man on the moon, there is still Mars, etc.
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Old 2005-07-22, 12:46   #4
OmbooHankvald
 
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Quote:
Originally Posted by Wacky
I'm curious why you consider the Cunningham Tables an inappropriate goal.
Depending on how you phrase it, there are certainly defined goals within the overall project.
I found it here with a phrase saying "The Cunningham project will never be finished. As our ability to factor improves, the range of the exponents is increased!". I'm not much of a matematician but I would like to participate in something where we (maybe) someday could lean back and say "yes! we did it!"

OH
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Old 2005-07-22, 13:55   #5
Prime95
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seventeenorbust probably best meets your definition of a project with a definite goal
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Old 2005-07-22, 19:49   #6
alpertron
 
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It appears that the project Seventeen or Bust will not be finished in a reasonable amount of time. See http://www.mersenneforum.org/showthread.php?t=4361 for more details.
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Old 2005-07-22, 21:26   #7
dsouza123
 
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NFSNET does factoring projects that last a few months each
which completely factor the target number.
Some projects are near the limits of what is currently factorable.

GIMPS does have a near term goal, to find a 10 Million digit prime number.

Trial factoring has the goal of trying to find a factor for each number tested
within the bit depth searched, it takes less than a week
(a few days, 48-72 hours, on faster PCs) to do a factoring assignment,
every time a factor is found it saves months of Lucas-Lehmer testing.
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Old 2005-07-22, 22:40   #8
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You could join base 4 sierpinski, only 5 candidates left.

Citrix
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Old 2005-07-23, 01:23   #9
kelman66
 
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you might try LLRNET at Riesel Sieve

http://www.rieselsieve.com/dload.php
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