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-   -   2021 “small” 15e post processing reservations and results (https://www.mersenneforum.org/showthread.php?t=26367)

RichD 2021-03-09 16:58

Taking 274__567_5m1.

chris2be8 2021-03-10 16:29

f45_152p1 had built a matrix. About 77 hours remain to solve it.

Chris

jyb 2021-03-11 16:31

Taking 11p7_244.

RichD 2021-03-14 00:31

274__567_5m1 factored
 
[CODE]p90 factor: 284202881510683347475176907460119479399415964500167204710789013785607330380927704859591881
p125 factor: 20058946313054195103068119374324510216982270959248938299224468450496475668003423447877064250491691678128921232078954339278761[/CODE]
119M unique relations built a 3.58M matrix using TD=128. (132 failed)
Solve time about 9 hours. (-t 3)

Log at: [url]https://pastebin.com/b6sFH3KV[/url]

jyb 2021-03-14 05:08

[QUOTE=jyb;573420]Taking 11p7_244.[/QUOTE]

Now in linear algebra.

chris2be8 2021-03-14 16:46

f45_152p1 is done:
[code]
p57 factor: 438007127629694688269217045833378555728962574323073136977
p149 factor: 23495590160530565207684875586499779472682043636645002628635223491941894106311817159655847149567014279150504306203749611445303361367707164881337916497
[/code]

Log at [url]https://pastebin.com/PUic7YUF[/url]

Chris

RichD 2021-03-14 22:49

7p6_307 factored
 
[CODE]p73 factor: 4322962132266970946846187918408926764510073310299857275447117097708551341
p110 factor: 92927352147092905172528220237469380231166692765589766189529833981969323152187981826619929035626402120367727243[/CODE]
224M unique relations built an 11.0M matrix using TD=132. (136 failed)
Solve time about 102 hours. (-t 4)

Log at: [url]https://pastebin.com/fdRytK83[/url]

jyb 2021-03-15 17:07

11p7_244 factored
 
[code]
Mon Mar 15 10:02:51 2021 p115 factor: 1059541973080742310555353784490717846000700811635333436715773635704846212282448747946836343381030372172465563706929
Mon Mar 15 10:02:51 2021 p136 factor: 6969096079244126679152261048928143897836230428317762523189071059169507114667572138168678892537058056698224638734798559361631868949953969
[/code]

[url]https://pastebin.com/9fkeegGB[/url]

chris2be8 2021-03-17 16:42

f46_151p1 has built a matrix. About 52 hours remain to solve it.

Chris

richs 2021-03-19 13:43

I do not know why there seems to a problem with sieving C172_434040_3112. I test sieved up to Q = 200M and there should be about 260M relations for the Q range (40-130M) that I chose. Sieving is almost complete and there are only 150M relations. Any thoughts?

Results from 5k test sieves:

Q Relations
20M 8161
50M 13218
100M 15524
150M 16651
200M 15336

Add another 70M Q (130-200M)?

swellman 2021-03-19 15:16

[QUOTE=richs;574118]I do not know why there seems to a problem with sieving C172_434040_3112. I test sieved up to Q = 200M and there should be about 260M relations for the Q range (40-130M) that I chose. Sieving is almost complete and there are only 150M relations. Any thoughts?
[/QUOTE]

Yes, I believe I’ve located the problem. In your original [url= https://www.mersenneforum.org/showpost.php?p=573028&postcount=104]post[/url], you had a line “lss:0”, but it should read “lss: 0”. Msieve is apparently ignoring this line in its current erroneous form and is sieving on the rational side.

I should have caught this typo but did not. My apologies.

Moving forward, I can

A. Fix the typo and see what happens.
B. Ignore the typo and extend Q further
C. Let this job finish and start another job called C172_434040_3112a with the correct syntax and sieve on the algebraic side albeit over a smaller range. You can download both data files, combine them and proceed with LA.

A is the fastest option, but there’s a chance Greg will have to intervene if something breaks.

Any suggestions? Greg?

-Sean


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