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-   -   Linear algebra reservations, progress and results (https://www.mersenneforum.org/showthread.php?t=20023)

RichD 2016-05-19 09:55

47_161_minus1 factored
 
1 Attachment(s)
23 hours to solve a 6.0M matrix on Core-i5, -t 4 using target_density=112 (TD=116 failed).
[CODE]p61 factor: 1370147355811014398230066065266567503872403310355435724291207
p124 factor: 9724064875629504113547106276158428793325436549067130500903049503592786148911962044512226882365113820400361285775825504821247[/CODE]

jasonp 2016-05-19 13:20

[QUOTE=RichD;434242]14 hours to solve a 4.7M matrix on a Core-i5, -t 4 using target_density=116 (TD=120 failed).
(Interesting SQRT phase.)
[/QUOTE]
Yes, it's a little unusual to find a degree-6 SNFS job that must take the slow path in the square root; most such jobs have degree 4. I think Serge found one that was degree 8, solving it sucked :)

RichD 2016-05-20 01:16

I'll take C185_131_51 & C187_126_65 next.

fivemack 2016-05-20 08:16

Taking C191_129_59 and 13_227_minus1

unconnected 2016-05-20 09:23

LA for C182_933436 just started. 16M matrix with ETA ~1 week.

pinhodecarlos 2016-05-20 10:38

[QUOTE=unconnected;434458]LA for C182_933436 just started. 16M matrix with ETA ~1 week.[/QUOTE]

How many cores? Are you using msieve MPI?

unconnected 2016-05-20 11:21

[QUOTE=pinhodecarlos;434463]How many cores? Are you using msieve MPI?[/QUOTE]

MPI on Dual Xeon E5-2620 (2x6cores, HT on).

pinhodecarlos 2016-05-20 11:29

[QUOTE=unconnected;434465]MPI on Dual Xeon E5-2620 (2x6cores, HT on).[/QUOTE]

Thank you. Why do you have HT on?

RichD 2016-05-20 18:42

C185_131_51 factored
 
1 Attachment(s)
14.5 hours to solve a 4.9M matrix on a Core-i5, -t 4 using target_density=120.
[CODE]p92 factor: 71484527237293063097507376962834151488403521314830336495108515488241185643611179924537384943
p93 factor: 277054085787504446590610570138822521152869183775015036015464013829860346441939573187533417559[/CODE]

Taking C190_125_68.

RichD 2016-05-21 15:10

C187_126_65 factored
 
1 Attachment(s)
20 hours to solve a 5.9M matrix on Core-i5, -t 4 using target_density=120.
[CODE]p90 factor: 810406676214506475247677124672360986478477658211372863130811366697935266195515047748382877
p97 factor: 6137692708701379913619130322836683344307775883786585354424778013126326743476265731895989528404679[/CODE]

Taking C191_138_62.

pinhodecarlos 2016-05-22 11:55

Taking C204_135_49.


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