2801^79-1 reservations (CLOSED 27 AUGUST) - Page 5

Andi47 · 2010-06-26, 07:07

Current relation count:

Code:

total Q's sieved      110,200,000
total relations       212,509,920
relations / Q         1.928

fivemack · 2010-06-26, 10:12

That big notch at the start is tempting me to resieve the region that I sieved on the wrong side, for purely aesthetic reasons; it would be mathematically inefficient.

Andi47 · 2010-06-26, 10:20

Quote:

Originally Posted by fivemack

That big notch at the start is tempting me to resieve the region that I sieved on the wrong side, for purely aesthetic reasons; it would be mathematically inefficient.

Why would it be inefficient? Is the duplication rate higher when a range is sieved on both sides?

BTW: Some more figures:

Code:

max. rel/Q:    2.092 in the range of 24-28M
your notch:    2.000 rel/Q (almost near the maximum)
leading edge: ~1.73 rel/Q (currently around Q~137M)

fivemack · 2010-06-26, 19:43

For 19.8-112 + 113-137, I have

Code:

Sat Jun 26 12:29:21 2010  found 39584889 hash collisions in 223071581 relations
Sat Jun 26 12:36:44 2010  found 37575436 duplicates and 186716113 unique relations
Sat Jun 26 13:55:49 2010  begin with 186716113 relations and 239612437 unique ideals

which sounds as if a huge and ugly matrix might be possible about the time we reach q0=200; will be necessary to sieve a bit beyond that to get a practical matrix.

apocalypse · 2010-07-26, 15:44

Completed 174M-178M. 6251616 relations in the range, 6232926 unique. Will upload later.

Reserving 202M-206M.

fivemack · 2010-07-30, 14:02

I'm back in the country and ssh.fivemack.org is accepting relations again.

chris2be8 · 2010-08-07, 19:19

Reserving 216M-220M.

Chris K

apocalypse · 2010-08-10, 00:42

Completed 212M-216M. 5762377 relations in the range, 5747945 unique.

Could not connect to ftp. Will upload later.

Code:

$ ftp fivemack.dyndns.org
ftp: connect: Connection timed out

Reserving 220M-224M.

fivemack · 2010-08-10, 08:39

Sorry about the ftp outage: my ADSL router got a bit hot and stopped routing. I turned it off overnight and it seems OK now.

chris2be8 · 2010-08-10, 18:00

208M-212M completed and uploaded. 5807956 relations.

Chris K

fivemack · 2010-08-11, 08:51

OK, we've got enough relations for a matrix, but at the moment the matrix is enormous (27.8M cycles - I'm having to use a 32G machine just to build it). I propose that we keep sieving until the end of August, and then the matrix shouldn't take much longer than the whole of September to run.

Thanks to everyone for staying with me on this rather large computation.

2010-06-26, 07:07	#45
Andi47 Oct 2004 Austria 2×17×73 Posts	Current relation count: Code: total Q's sieved 110,200,000 total relations 212,509,920 relations / Q 1.928 Attached Thumbnails Last fiddled with by Andi47 on 2010-06-26 at 07:20 Reason: formatting and updating graph

2010-06-26, 19:43	#48
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 6,379 Posts	For 19.8-112 + 113-137, I have Code: Sat Jun 26 12:29:21 2010 found 39584889 hash collisions in 223071581 relations Sat Jun 26 12:36:44 2010 found 37575436 duplicates and 186716113 unique relations Sat Jun 26 13:55:49 2010 begin with 186716113 relations and 239612437 unique ideals which sounds as if a huge and ugly matrix might be possible about the time we reach q0=200; will be necessary to sieve a bit beyond that to get a practical matrix.

2010-08-10, 00:42	#52
apocalypse Feb 2003 2×3×29 Posts	Completed 212M-216M. 5762377 relations in the range, 5747945 unique. Could not connect to ftp. Will upload later. Code: $ ftp fivemack.dyndns.org ftp: connect: Connection timed out Reserving 220M-224M.

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2010-06-26, 10:12	#46
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 18EB₁₆ Posts	That big notch at the start is tempting me to resieve the region that I sieved on the wrong side, for purely aesthetic reasons; it would be mathematically inefficient.

2010-07-26, 15:44	#49
apocalypse Feb 2003 2×3×29 Posts	Completed 174M-178M. 6251616 relations in the range, 6232926 unique. Will upload later. Reserving 202M-206M.

2010-07-30, 14:02	#50
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 6379₁₀ Posts	I'm back in the country and ssh.fivemack.org is accepting relations again.

2010-08-07, 19:19	#51
chris2be8 Sep 2009 2·3·331 Posts	Reserving 216M-220M. Chris K

2010-08-10, 08:39	#53
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 1100011101011₂ Posts	Sorry about the ftp outage: my ADSL router got a bit hot and stopped routing. I turned it off overnight and it seems OK now.

2010-08-10, 18:00	#54
chris2be8 Sep 2009 3702₈ Posts	208M-212M completed and uploaded. 5807956 relations. Chris K

2010-08-11, 08:51	#55
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 6,379 Posts	OK, we've got enough relations for a matrix, but at the moment the matrix is enormous (27.8M cycles - I'm having to use a 32G machine just to build it). I propose that we keep sieving until the end of August, and then the matrix shouldn't take much longer than the whole of September to run. Thanks to everyone for staying with me on this rather large computation.