mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Factoring (https://www.mersenneforum.org/forumdisplay.php?f=19)
-   -   OddPerfect enthusiasts & others: ECM help needed! (https://www.mersenneforum.org/showthread.php?t=13739)

bdodson 2010-08-26 14:44

[QUOTE=bdodson;226719]OK, sounds like sieving's about to restart here; so I'll be winding
down this ecm run. The current count is
3508+3393+6703+3682 = 15,916 curves, of which
there are eight complete t50's, = 13,604 curves
... -Bruce (all curves 26e7 with default B2)[/QUOTE]

OK, the last 7 curves were hung (or something), so I sent them
on to the next NFS@Home candidate (from among the ones listed
between 5p409 and 3mx607 on the "Status" page). That's c.
10.5t50, a "light 2t55" (above 2*5t50, instead of 2*5.7t50; the
t50 -> t55 -> t60 equivalences I'm using are far from exact). The
actual curve count is
3508+3393+6703+4595 = 18199.

If we started at c. 1t55 (from the previous OP ecm effort), so above
5t50, we're surely above 15t50, with c. 25t50 = 5t55 = t60; more like
3/5 = .6t60; and >> Greg's .5t60. Suppose someone could give us a
more precise status once the OP ecm server counts are updated with
the above, and Jeff's and everyone else's, so far?

Still plenty of room to go to remove [p58..p63]'s, at 2t60
(to 80% prob instead of 62%), and this number may now be
more likely to have a p70 than a p55. A good candidate for
ecm record effort. -Bruce

(The status count would be just p55-optimal 11e7 and p60-optimal
26e7 curves, not including the p50-optimal curves, yes?)

wblipp 2010-08-27 00:56

[QUOTE=bdodson;227152](The status count would be just p55-optimal 11e7 and p60-optimal 26e7 curves, not including the p50-optimal curves, yes?)[/QUOTE]

The number I've been updating in the first post counts 43e6, 11e7, and 26e7 curves, and calculates based on the output of ecm -v. That calculation is currently 4.90 t55 or 0.86 t60. The 43e6 curves contribute 0.28 and 0.04 to those totals.

William

bdodson 2010-08-27 15:18

[QUOTE=wblipp;227218]The number I've been updating in the first post counts 43e6, 11e7, and 26e7 curves, and calculates based on the output of ecm -v. That calculation is currently 4.90 t55 or 0.86 t60. The 43e6 curves contribute 0.28 and 0.04 to those totals.

William[/QUOTE]

Ah; updating the first post. I'd have given simpler counts
if I'd been paying better attention (seeing counts from
previous posts already included). The 0.86 t60 looks very good!

-Bruce

chris2be8 2010-08-29 12:55

15 curves at 26e7, no factors.

My 0.1% (so I can say I contributed, even if not much).

Chris K

warut 2010-09-11 21:46

3^607-1 is now in the [URL="http://homes.cerias.purdue.edu/~ssw/cun/pmain910"]main Cunningham table[/URL].

wblipp 2010-09-11 22:33

[QUOTE=warut;229430]3^607-1 is now in the [URL="http://homes.cerias.purdue.edu/~ssw/cun/pmain910"]main Cunningham table[/URL].[/QUOTE]

Just barely. The threshold was increased to 610.

bdodson 2010-09-11 23:48

[QUOTE=wblipp;229437]Just barely. The threshold was increased to 610.[/QUOTE]

Just enough to fill the 4th and 5th holes. As gnfs polyn selection
winds down on on the c176, we're requesting the reservation on
the 4th (605-), to go along with the NFS@Home reservation for 607-.
-Bruce (for) Batalov+Dodson

frmky 2010-09-15 07:14

Sieving of 3,607- has begun. If you would like to help, go to [URL="http://escatter11.fullerton.edu/nfs/"]http://escatter11.fullerton.edu/nfs[/URL], download the BOINC software, and connect to NFS@Home. By default you will also receive tasks for 7,338+ or 6,346+, but you can disable the "lasievee" application in your [URL="http://escatter11.fullerton.edu/nfs/prefs.php?subset=project"]account preferences[/URL] to only work on 3,607- (and a few recycled tasks for 5,409- that are slowly trickling out for the next week or so). The sieving will require approximately 1.5GB of free memory per core toward the end, but a bit less for now.

Edit: Windows, Linux, and Mac OS X (Intel) are all supported.


All times are UTC. The time now is 15:38.

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