Getting under 1k unfactored exponents in 0.0M - Page 9

axn · 2023-07-30, 06:48

What is the implication of "polynomial Dickson(30)" used by GMP-ECM?

mathwiz · 2023-07-30, 17:52

Somewhat peripherally related, but is mersenne.ca either delayed or down? Seems to be a few days stale.

slandrum · 2023-07-30, 18:03

Quote:

Originally Posted by mathwiz

Somewhat peripherally related, but is mersenne.ca either delayed or down? Seems to be a few days stale.

There's a forum for that: mersene.ca

masser · 2023-07-30, 20:40

Quote:

Originally Posted by ryanp

GMP-ECM takes us home, with a p54 hit...

Thanks for the fun project, Rubiksmath!

petrw1 · 2023-07-31, 14:48

And suddenly we're at 997: someone forgot to press STOP?

kruoli · 2023-07-31, 14:57

Yeah, when Ryan hits it...
For M24877, he even found two factors! Then M24877 and M26783. M28807 had a factor found by masser.

firejuggler · 2023-07-31, 21:02

soooo... hit sub 900? I mean, it is an objective, right? not attainable any time soon but...

Rubiksmath · 2023-07-31, 23:06

Nice! t40 to 100k is not terribly far from being complete so that's the next logical step here I think.

masser · 2023-08-05, 20:46

Quote:

Originally Posted by Rubiksmath

Nice! t40 to 100k is not terribly far from being complete so that's the next logical step here I think.

Another activity we might consider: ensuring each exponent less than 100k has had some ECM curves run with an appropriate B1 and the recent versions of prime95/mprime. I noticed that there was a set of exponents around 30223 (this was prior to Ryan Propper's recent submissions) and another set near 33889 with B2 $\approx$ 200*B1 for the most recently run ECM curves. With a fair amount of memory and recent P95/mprime, we can get much larger B2 values.

Stef42 · 2023-08-05, 21:16

Quote:

Originally Posted by masser

Another activity we might consider: ensuring each exponent less than 100k has had some ECM curves run with an appropriate B1 and the recent versions of prime95/mprime. I noticed that there was a set of exponents around 30223 (this was prior to Ryan Propper's recent submissions) and another set near 33889 with B2 $\approx$ 200*B1 for the most recently run ECM curves. With a fair amount of memory and recent P95/mprime, we can get much larger B2 values.

If you would like to share the load, let me know. I have a dual Xeon system with 384GB RAM doing regular ECM stuff at the moment, tho I wouldn't mind to switch :)

masser · 2023-08-06, 17:49

Quote:

Originally Posted by Stef42

If you would like to share the load, let me know. I have a dual Xeon system with 384GB RAM doing regular ECM stuff at the moment, tho I wouldn't mind to switch :)

It will be a few months until I circle back to ECM tasks; feel free to take up this task in the meantime. I'll keep an eye on the progress here.

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2023-07-30, 06:48	#89
axn Jun 2003 1562₁₆ Posts	What is the implication of "polynomial Dickson(30)" used by GMP-ECM?

2023-07-30, 17:52	#90
mathwiz Mar 2019 110001100₂ Posts	Somewhat peripherally related, but is mersenne.ca either delayed or down? Seems to be a few days stale.

2023-07-31, 14:48	#93
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 2²·13·103 Posts	And suddenly we're at 997: someone forgot to press STOP?

2023-07-31, 14:57	#94
kruoli "Oliver" Sep 2017 Porta Westfalica, DE 1,831 Posts	Yeah, when Ryan hits it... For M24877, he even found two factors! Then M24877 and M26783. M28807 had a factor found by masser.

2023-07-31, 21:02	#95
firejuggler "Vincent" Apr 2010 Over the rainbow 5553₈ Posts	soooo... hit sub 900? I mean, it is an objective, right? not attainable any time soon but...

2023-07-31, 23:06	#96
Rubiksmath Sep 2022 127 Posts	Nice! t40 to 100k is not terribly far from being complete so that's the next logical step here I think.