mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > NFS@Home

Closed Thread
 
Thread Tools
Old 2018-08-02, 13:08   #45
pinhodecarlos
 
pinhodecarlos's Avatar
 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK

492110 Posts
Default

Quote:
Originally Posted by pinhodecarlos View Post
L2785B Failed with td=115, giving a shot with 100. Let’s see what comes up!

Failed with 100. Unreserving composite, please add more relations. TIA
pinhodecarlos is online now  
Old 2018-08-02, 15:27   #46
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

13×491 Posts
Default

Taking F1971
fivemack is offline  
Old 2018-08-03, 05:02   #47
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

52×191 Posts
Default

Quote:
Originally Posted by VBCurtis View Post
May I have another 15-20M relations? Density 128 does not build, and density 124 yields a ~32M matrix.
L2995B is GNFS188 and has 23M matrix; I hope I can do better than 31M for GNFS191!
Fivemack is already solving this matrix, but since more relations were queued I thought I'd find out how much help they would have provided.
First try: 452.6M raw relations, 324M unique. TD 128 failed, TD 124 matrix 31.3M.
Second try: 461.5 raw relations, 329.4M unique. TD 128 failed, TD 124 matrix 30.7M.
So, 9M extra relations in this case were not a meaningful difference; a 2% improvement in matrix size might improve LA time by 4%.
I retract my previous claim that 450M relations is always enough for 32LP jobs; however, I think that any job that needs 450M relations for 32LP ought to be done with 33LP instead.
VBCurtis is offline  
Old 2018-08-03, 09:45   #48
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

18EF16 Posts
Default C234_138_83 done

Code:
Thu Aug  2 23:50:50 2018  p79 factor: 4852482693399566031309100342466502203821581948525327672263255869963531563887371
Thu Aug  2 23:50:50 2018  p155 factor: 25601695898174599365362426477703552041646980275314877660484633243074989602867424075941978673943728332378716879550916402098860939133559296665461200154894043
68.4 hours on 10 cores Xeon Silver 4114

Log attached and at https://pastebin.com/eMf58gNh
Attached Files
File Type: log C234_138_83.log (448.9 KB, 115 views)
fivemack is offline  
Old 2018-08-03, 21:39   #49
swellman
 
swellman's Avatar
 
Jun 2012

BB116 Posts
Default L2785A

Code:
p63 factor: 232555578644599927086757417642069159548766630657783545861246961
p75 factor: 118853751876715560420209556615837399854608332350671977978213659035577629141
p86 factor: 33164063418443223168062297507538876395929474531708325019581611805139958383009502113931
TD=102, 246M raw, 184M unique. Truncated log attached
Attached Files
File Type: 7z msieve_trunc.7z (4.0 KB, 108 views)

Last fiddled with by swellman on 2018-08-03 at 21:40
swellman is offline  
Old 2018-08-04, 11:28   #50
pinhodecarlos
 
pinhodecarlos's Avatar
 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK

10011001110012 Posts
Default

L2785A: https://pastebin.com/hk1zjP0D
130^101+101^130 C242 cofactor: https://pastebin.com/1aEiJUjn

Last fiddled with by pinhodecarlos on 2018-08-04 at 11:30
pinhodecarlos is online now  
Old 2018-08-04, 18:07   #51
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

52·191 Posts
Default

Taking 145^89_89^145 (GNFS 180).
VBCurtis is offline  
Old 2018-08-05, 20:18   #52
fivemack
(loop (#_fork))
 
fivemack's Avatar
 
Feb 2006
Cambridge, England

143578 Posts
Default

I've finished L1328, though the combination of doing parallel square-root on four processes and of having done the SNFS on a number with two known factors means the end of the log looks quite messy.

Second-largest factor is 42029642098058070120505155457595135814424295841322041625673209628515064207327

About 388.7 hours on 6 cores i7/4930K for a 26.80M matrix at density 126 (128 didn't work). Mangled log attached and at https://pastebin.com/L14VAFNq
Attached Files
File Type: log L1328.log (78.1 KB, 111 views)
fivemack is offline  
Old 2018-08-08, 02:59   #53
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

52·191 Posts
Default

I just finished the matrix for l2995b, a GNFS-188.
The square root phase crashes after 2-3 minutes with:
Code:
Tue Aug  7 19:46:55 2018  commencing square root phase
Tue Aug  7 19:46:55 2018  reading relations for dependency 1
Tue Aug  7 19:46:58 2018  read 11497681 cycles
Tue Aug  7 19:47:27 2018  cycles contain 39663842 unique relations
Tue Aug  7 19:49:28 2018  error: relation 25830062 corrupt
What's my plan?
VBCurtis is offline  
Old 2018-08-08, 03:20   #54
axn
 
axn's Avatar
 
Jun 2003

25·5·31 Posts
Default

Quote:
Originally Posted by VBCurtis View Post
I just finished the matrix for l2995b, a GNFS-188.
The square root phase crashes after 2-3 minutes with:
Code:
Tue Aug  7 19:46:55 2018  commencing square root phase
Tue Aug  7 19:46:55 2018  reading relations for dependency 1
Tue Aug  7 19:46:58 2018  read 11497681 cycles
Tue Aug  7 19:47:27 2018  cycles contain 39663842 unique relations
Tue Aug  7 19:49:28 2018  error: relation 25830062 corrupt
What's my plan?
Have you tried running the sqrt with the explicit dependency # (from 2 onwards)? Maybe you'll get lucky and the corruption won't affect others?
axn is offline  
Old 2018-08-08, 05:24   #55
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

52·191 Posts
Default

Quote:
Originally Posted by axn View Post
Have you tried running the sqrt with the explicit dependency # (from 2 onwards)? Maybe you'll get lucky and the corruption won't affect others?
Thanks! #2 failed, but #3 is multiplying. Maybe I'll get lucky, or maybe I'll be manually running sqrts for a day or so.
VBCurtis is offline  
Closed Thread

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
2018 14e post processing reservations and results pinhodecarlos NFS@Home 551 2019-01-04 13:06
16e Post Processing Progress pinhodecarlos NFS@Home 8 2018-11-28 13:45
Crash doing large post-processing job wombatman Msieve 22 2013-12-04 01:37
Update on 7^254+1 post processing dleclair NFSNET Discussion 4 2005-04-05 09:51
Post processing for 2,757- xilman NFSNET Discussion 3 2003-11-06 14:23

All times are UTC. The time now is 17:51.

Sun May 9 17:51:38 UTC 2021 up 31 days, 12:32, 1 user, load averages: 3.79, 4.14, 4.21

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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.