mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > Aliquot Sequences

Reply
 
Thread Tools
Old 2022-05-25, 20:10   #221
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13×853 Posts
Default

Quote:
Originally Posted by EdH View Post
I ran the c159 (about 26 hours) <snip>
26 hours for a C159. Wow! How many cores on that machine? Either I'm doing something wrong or that is a big machine! :-)
gd_barnes is offline   Reply With Quote
Old 2022-05-25, 20:31   #222
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

22×32×149 Posts
Default

Ed's farm is something like 100 cores spread over a ton of rather old hardware, like HP Z600 age or even some Core2.
His magic is in the scripting to get them all to work together. :)

My notes only have one C159 job. It took 3.2 days as the only thing running on a Z620 dual-10-core Ivy Bridge Xeon.
I just got a 5950X; haven't started CADO timing runs yet, too giddy with LLR timings still.
VBCurtis is offline   Reply With Quote
Old 2022-05-26, 03:28   #223
EdH
 
EdH's Avatar
 
"Ed Hall"
Dec 2009
Adirondack Mtns

4,691 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
26 hours for a C159. Wow! How many cores on that machine? Either I'm doing something wrong or that is a big machine! :-)
I've actually got about 250 threads (across a lot of machines - about a third are i7s) running the CADO-NFS polyselect and sieving (a few less during polyselect), and then Msieve is allowed 40 threads for LA and 8 for SR. LA takes quite a bit longer than sieving, but the clients are freed to move to another task while LA and SR run.
EdH is offline   Reply With Quote
Old 2022-05-26, 07:14   #224
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13·853 Posts
Default

Quote:
Originally Posted by EdH View Post
I've actually got about 250 threads (across a lot of machines - about a third are i7s) running the CADO-NFS polyselect and sieving (a few less during polyselect), and then Msieve is allowed 40 threads for LA and 8 for SR. LA takes quite a bit longer than sieving, but the clients are freed to move to another task while LA and SR run.
Very impressive! I feel much better now. I've been running everything for factoring on an 8-core/8-thread I7-9700 and I'm pretty happy to be able to ECM/sieve a C100 in 20 mins or a C120 in ~2.5 hours. The biggest I have is a Ryzen 3950X...16 cores/32 threads but I like to have it for sieving and prime searching and occasional small factoring jobs.

The magic really is in that scripting! That's a lot of threads to bring together.

Last fiddled with by gd_barnes on 2022-05-26 at 07:15
gd_barnes is offline   Reply With Quote
Old 2022-05-26, 09:52   #225
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

2B5116 Posts
Default

38^100 terminates
gd_barnes is offline   Reply With Quote
Old 2022-05-26, 16:10   #226
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

123648 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
I've been running everything for factoring on an 8-core/8-thread I7-9700 and I'm pretty happy to be able to ECM/sieve a C100 in 20 mins or a C120 in ~2.5 hours.
Is this CADO or GGNFS/yafu?

That same Z620 has 8min 20 sec for a C103 and almost exactly 60 min for C120, running CADO with the params files posted to the CADO forum. If you're in Linux, I strongly suggest getting CADO set up with the updated params files. I think the 9700 is about twice as fast per-core as my Z620 on CADO, so your 8 cores should achieve 75-80% of the speed of my Z620.

Or maybe you have other tasks running and my speed comparisons are folly.
VBCurtis is offline   Reply With Quote
Old 2022-05-26, 21:03   #227
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13×853 Posts
Default

Quote:
Originally Posted by VBCurtis View Post
Is this CADO or GGNFS/yafu?

That same Z620 has 8min 20 sec for a C103 and almost exactly 60 min for C120, running CADO with the params files posted to the CADO forum. If you're in Linux, I strongly suggest getting CADO set up with the updated params files. I think the 9700 is about twice as fast per-core as my Z620 on CADO, so your 8 cores should achieve 75-80% of the speed of my Z620.

Or maybe you have other tasks running and my speed comparisons are folly.
No other tasks running.

I'm in Windows using GGNFS/yafu. All of my modern machines run Windows. Only an old server machine is running Linux.

I'm not familiar with CADO. Can it be used in Windows?
gd_barnes is offline   Reply With Quote
Old 2022-05-26, 23:11   #228
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13×853 Posts
Default

15472^36 terminates
gd_barnes is offline   Reply With Quote
Old 2022-05-27, 03:35   #229
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13×853 Posts
Default

30030^34 terminates
gd_barnes is offline   Reply With Quote
Old 2022-05-27, 04:55   #230
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

13·853 Posts
Default

103^77 and 119^75 terminate

Last fiddled with by gd_barnes on 2022-05-27 at 05:35
gd_barnes is offline   Reply With Quote
Old 2022-05-27, 06:54   #231
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

255218 Posts
Default

59^87 and 193^59 terminate

Last fiddled with by gd_barnes on 2022-05-27 at 07:51
gd_barnes is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unexpected termination of PM-1 Miszka Software 22 2021-11-19 21:36
Easier pi(x) approximation mathPuzzles Math 8 2017-05-04 10:58
Would finding a definate Pi value easier if... xtreme2k Math 34 2013-09-09 23:54
Aliquot Termination Question - Largest Prime? EdH Aliquot Sequences 6 2010-04-06 00:12
A new termination below 100k 10metreh Aliquot Sequences 0 2010-03-11 18:24

All times are UTC. The time now is 02:30.


Tue Aug 9 02:30:59 UTC 2022 up 32 days, 21:18, 1 user, load averages: 0.98, 0.95, 0.90

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, 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.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔