Linear algebra reservations, progress and results - Page 172

fivemack · 2017-04-07, 17:09

Quote:

Originally Posted by VBCurtis

I forgot to add target_density to the command line, and produced a 21.8M matrix at default density. I re-ran the filtering with TD = 140, and produced the identical matrix!

That distinctly surprises me; can I see the relevant bits of the log? Remember that

Code:

msieve -v -nc1 -t 6 target_density=140

runs with target density 70; the target_density needs to be right after the -nc1

VBCurtis · 2017-04-08, 02:47

Attached is the log from TD=136; I deleted the log from the original no-density-set run, but the matrix was the same size to 4 sigfigs. (I forgot the TD = 140 runs were with the relations file truncated, not sure why I tried 136 first)

fivemack · 2017-04-08, 10:20

Interesting: so much over-sieving that the remaining cycles were very light. I didn't know that could happen. Thank you.

fivemack · 2017-04-08, 10:38

Taking C203_132_83

richs · 2017-04-09, 00:54

Quote:

Originally Posted by richs

Reserving C237_12161_59 (14e)

Since my reservation has not shown up on the 14e status page, just a reminder that I will be downloading the relations when they complete soon.

fivemack: sorry for the omission, the reservation has been inserted

unconnected · 2017-04-14, 12:03

C186_290770486991_19 completed - 61 hours for 8.7M matrix (TD=140).

Code:

prp93 factor: 150439732626969761986330690056970259714353117122410952773267829152146312696348867088231317079
prp93 factor: 740845168441870684384902125736351384779286997262301911427594857947914931324509223013796294481

https://pastebin.com/aBxDAWaL

RichD · 2017-04-14, 21:06

I'll take C238_12301_19 next.
Which is really 12301^59-1.

swellman · 2017-04-15, 10:33

Code:

prp92 factor: 59915134378056696732367932276503084510388450809160673947455647072742315394579939431345569751
prp109 factor: 4726536549082114298263832049813671703961650884878966776267592873481393429447689989176410105408788931466415019

VBCurtis · 2017-04-16, 06:07

Code:

prp84 factor: 218733177161231832966771125073991586700926578295329737721842253100215814271723769489
prp109 factor: 1122189132526495094389696806443711604583514165950135489327269050120777398921647097444353689166948241335034811

I test-sieved with the incorrect skew, so actual yield was well over my estimate, leading to oversieving. I filtered with 406M rels and TD =140, and "matrix not dense enough, retrying" led to a 9.96M matrix of density 67.

Log at https://pastebin.com/iVdp0JtX

For once, I remembered to post factors to factordb.

swellman · 2017-04-17, 00:51

Reserving 142^67+67^142. I'll download in a few days.

Does it appear to have enough relations to build a matrix?

RichD · 2017-04-19, 03:44

84 hours to solve a 10.8M matrix, -t 4, w/ TD=128.

Code:

p66 factor: 306429441119212982842160094679500662234521592175004993998537169117
p172 factor: 5373399008907437443111523249428629587116534769141955817762052772664564995799203197079637125948336534748396015219065752233860621512112226157563812238766474000931184842407627

https://pastebin.com/C6qLf5fM

2017-04-16, 06:07	#1890
VBCurtis "Curtis" Feb 2005 Riverside, CA 2×2,437 Posts	*132^793-1 factored** Code: prp84 factor: 218733177161231832966771125073991586700926578295329737721842253100215814271723769489 prp109 factor: 1122189132526495094389696806443711604583514165950135489327269050120777398921647097444353689166948241335034811 I test-sieved with the incorrect skew, so actual yield was well over my estimate, leading to oversieving. I filtered with 406M rels and TD =140, and "matrix not dense enough, retrying" led to a 9.96M matrix of density 67. Log at https://pastebin.com/iVdp0JtX For once, I remembered to post factors to factordb.

2017-04-17, 00:51	#1891
swellman Jun 2012 2²·773 Posts	142^67+67^142 (15e) Reserving 142^67+67^142. I'll download in a few days. Does it appear to have enough relations to build a matrix?

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2017-04-08, 10:20	#1884
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 6424₁₀ Posts	Interesting: so much over-sieving that the remaining cycles were very light. I didn't know that could happen. Thank you.

2017-04-08, 10:38	#1885
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³·11·73 Posts	Taking C203_132_83

2017-04-14, 21:06	#1888
RichD Sep 2008 Kansas 2⁶×53 Posts	I'll take C238_12301_19 next. Which is really 12301^59-1.