mersenneforum.org Reserved for MF - Sequence 3366
 Register FAQ Search Today's Posts Mark Forums Read

2020-10-27, 17:50   #430
EdH

"Ed Hall"
Dec 2009

3,541 Posts

Quote:
 Originally Posted by VBCurtis I'd just let it run; root-opt will only take a couple hours, and it's not like I'll be waiting on you Wednesday in any case.
I am letting it run out. I hope it will be finished in time to post tonight.

I was able to get a preliminary peek at the current candidate polynomials and it doesn't look promising. The best so far is <9e-15.

cownoise:
Code:
120976320.38547    8.99509508e-15

 2020-10-27, 22:31 #431 VBCurtis     "Curtis" Feb 2005 Riverside, CA 3×29×53 Posts My best from CADO is 9.61e-15 according to cownoise. I'll test-sieve it against the Gimarel polys, but I expect inferiority.
 2020-10-27, 23:51 #432 EdH     "Ed Hall" Dec 2009 Adirondack Mtns 3,541 Posts My run has finished and nothing better showed up.
 2020-10-29, 00:57 #433 VBCurtis     "Curtis" Feb 2005 Riverside, CA 3×29×53 Posts Job posted to 16e queue thread: https://mersenneforum.org/showthread...395#post561395 Gimarel's second poly proved fastest, and with highest yield. A 32/33 LP hybrid appears a bit faster than 33/33, and produces less data, so that was chosen. I did not trial-sieve 32/32.
 2020-12-22, 20:53 #434 VBCurtis     "Curtis" Feb 2005 Riverside, CA 120316 Posts The C196 is done, next blocker is a C164 which I've ECM'ed a bit past T50. I will CADO it starting tonight, unless someone with more hardware takes it first. I expect to need about a week to factor it on 20 cores. Edit: I'll post the C196 log/info to the 16e thread tonight also. Last fiddled with by VBCurtis on 2020-12-22 at 20:54
2020-12-22, 21:55   #435
EdH

"Ed Hall"
Dec 2009

3,541 Posts

Quote:
 Originally Posted by VBCurtis The C196 is done, next blocker is a C164 which I've ECM'ed a bit past T50. I will CADO it starting tonight, unless someone with more hardware takes it first. I expect to need about a week to factor it on 20 cores. Edit: I'll post the C196 log/info to the 16e thread tonight also.
I'll run the c164. Should take me a little less time. . .

2020-12-22, 23:59   #436
RichD

Sep 2008
Kansas

7×463 Posts

Quote:
 Originally Posted by EdH I'll run the c164. Should take me a little less time. . .
If you want to open up a CADO server I can throw four Sandy Bridge cores at it for a day or two.

 2020-12-23, 00:21 #437 VBCurtis     "Curtis" Feb 2005 Riverside, CA 3×29×53 Posts Knowing Ed and his farm, two days is all it will take to sieve! I got to about 1.2t50 on the C164, tried a few hundred curves at 15e7 before I saw Ed's reservation.
2020-12-23, 00:50   #438
EdH

"Ed Hall"
Dec 2009

3,541 Posts

Quote:
 Originally Posted by VBCurtis Knowing Ed and his farm, two days is all it will take to sieve! I got to about 1.2t50 on the C164, tried a few hundred curves at 15e7 before I saw Ed's reservation.
I was optimistically thinking tomorrow evening, but it is still in size opt polyselection. In checking, I found that I do not have an "Improved" c165 params file (hint, hint).

2020-12-23, 01:10   #439
charybdis

Apr 2020

132 Posts

Quote:
 Originally Posted by EdH I was optimistically thinking tomorrow evening, but it is still in size opt polyselection. In checking, I found that I do not have an "Improved" c165 params file (hint, hint).
These are almost certainly not optimal but should be an improvement on the defaults:

Code:
###########################################################################
# Polynomial selection
###########################################################################

###########################################################################
# Sieve
###########################################################################

tasks.sieve.rels_wanted = 175000000 # increase by 10% if you're limited by matrix time
(keep filtering etc the same, I expect you're using msieve anyway)

Last fiddled with by charybdis on 2020-12-23 at 01:15

2020-12-23, 03:22   #440
EdH

"Ed Hall"
Dec 2009

3,541 Posts

Quote:
 Originally Posted by charybdis These are almost certainly not optimal but should be an improvement on the defaults: . . . (keep filtering etc the same, I expect you're using msieve anyway)
Thanks, but I just found this and sieving is underway, so I'll let it play out since I'm using some scripts to do everything. It currently shows tomorrow late afternoon for end of sieving, but we'll see as it approaches. Yes, I plan on using Msieve after the sieving finishes, but that depends on whether Msieve can build a matrix at the point that CADO-NFs can. The scripts leave CADO-NFS running until Msieve filters. If it can build a matrix, it kills CADO-NFS and proceeds. If not, CADO-NFS continues on to finish.

Edit: I do have a snap0 recovery script, that picks things up if something crashes, but I'm a bit leery of changing things once it's underway, unless necessary.

Last fiddled with by EdH on 2020-12-23 at 03:25

 Similar Threads Thread Thread Starter Forum Replies Last Post sweety439 And now for something completely different 17 2017-06-13 03:49 RichD Aliquot Sequences 36 2013-11-29 07:03 petrw1 Lone Mersenne Hunters 82 2010-01-11 01:57 roger Puzzles 16 2006-10-18 19:52 Citrix Puzzles 5 2005-09-14 23:33

All times are UTC. The time now is 17:00.

Wed Jan 20 17:00:42 UTC 2021 up 48 days, 13:12, 0 users, load averages: 3.43, 3.12, 2.90