mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > Aliquot Sequences

Reply
 
Thread Tools
Old 2020-05-13, 15:49   #342
EdH
 
EdH's Avatar
 
"Ed Hall"
Dec 2009
Adirondack Mtns

17·199 Posts
Default

Quote:
Originally Posted by charybdis View Post
Could do, but I don't want to leave you without any jobs to run!

4000 curves at 8e7 done, now running 1500 at 15e7. Memory use in stage 2 is peaking just below 1.2G per process.
No problem at all. I'm playing in lots of areas. I think your data would be better for Curtis' work. (Notice how I sneaked out from under some responsibility?)

Thanks for the memory note. This may drive which machines I add to my ECM setup. My script(s) simply count up until I stop them, so let me know when I should stop. I don't even know how many curves I can do per how much time.
EdH is offline   Reply With Quote
Old 2020-05-13, 15:56   #343
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

4,397 Posts
Default

Thanks for all the ECM help! Nice to have friends with firepower. I'll not schedule those 1000@15e7 myself. :)

I choose non-standard GMP-ECM bounds after experimentation showed that, for example, a t50 is just as fast (or faster) using B1=6e7 as it is using B1=43e6, but the 6e7 curves have a higher chance to find larger factors.

Same for 15e7 vs 11e7 for t55 curves.
VBCurtis is online now   Reply With Quote
Old 2020-05-13, 16:50   #344
charybdis
 
Apr 2020

6C16 Posts
Default

1500@15e7 done, starting GNFS now.
charybdis is offline   Reply With Quote
Old 2020-05-13, 17:43   #345
EdH
 
EdH's Avatar
 
"Ed Hall"
Dec 2009
Adirondack Mtns

338310 Posts
Default

I've stopped my local ECM (344 @ 15e7), but I'm leaving Colab running as a timed experiment.
EdH is offline   Reply With Quote
Old 2020-05-17, 11:46   #346
charybdis
 
Apr 2020

22·33 Posts
Default

c170 is done:
Code:
p80 factor: 22518523926942820703763817501041320587763580874359805852200157171767426294316763
p91 factor: 3847115059798621443407081712134100568163094800824460322922394663279671623565737306421686491
The c189 at index 2212 has had 4000 curves at 15e6 which is about a t45.
charybdis is offline   Reply With Quote
Old 2020-05-17, 22:24   #347
charybdis
 
Apr 2020

11011002 Posts
Default

If no-one else is running ECM I'll throw some more curves at the c189, but everyone's welcome to help of course!
charybdis is offline   Reply With Quote
Old 2020-05-18, 01:12   #348
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

104558 Posts
Default

I'll have a t50 done overnight, specifically 3000@6e7 and 2000@8e7; I've got 50 threads on it now.
If you run curves, head for 11e7 or 15e7?
VBCurtis is online now   Reply With Quote
Old 2020-05-18, 01:51   #349
charybdis
 
Apr 2020

22·33 Posts
Default

OK I'll run curves at 15e7 overnight and see where that gets us.
charybdis is offline   Reply With Quote
Old 2020-05-18, 12:29   #350
charybdis
 
Apr 2020

10810 Posts
Default

Found a p54 factor. Next line has a c143 which will soon be ready for GNFS; I'll do it if no-one else wants it.
charybdis is offline   Reply With Quote
Old 2020-05-18, 14:15   #351
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

439710 Posts
Default

You found it, you do it! That's just a few hours for you, anyway.
VBCurtis is online now   Reply With Quote
Old 2020-05-18, 17:38   #352
charybdis
 
Apr 2020

22×33 Posts
Default

The server and clients are having some connection problems so I'm unable to do the c143 at the moment. If anyone else wants it then go ahead and take it.
charybdis is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Primes in n-fibonacci sequence and n-step fibonacci sequence sweety439 And now for something completely different 17 2017-06-13 03:49
Team sieve #41: C165 from 3366:i2098 RichD Aliquot Sequences 36 2013-11-29 07:03
80M to 64 bits ... but not really reserved petrw1 Lone Mersenne Hunters 82 2010-01-11 01:57
What's the next in the sequence? roger Puzzles 16 2006-10-18 19:52
Sequence Citrix Puzzles 5 2005-09-14 23:33

All times are UTC. The time now is 21:37.

Tue Oct 27 21:37:06 UTC 2020 up 47 days, 18:48, 2 users, load averages: 2.26, 2.12, 1.99

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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.