Fast Breeding (guru management) - Page 22

jyb · 2015-09-16, 18:12

Quote:

Originally Posted by debrouxl

I tried to sum up the (potential) reservations for NFS@Home's 14e in the latest several dozens of posts:

Need t55, in slow progress mostly by Jon (jyb):
11^236+4^236 (100 curves at B1=26e7 by Lionel Debroux)
8^271-5^271
12^227-11^227

These now have a little over 10K curves at B1 = 110M. Sufficient? Either way I'll need to back off of them in favor of other things for a little bit.

debrouxl · 2015-09-16, 18:26

My cores have now run over 7800 curves at B1=43e6 on C186_124_73, I'll queue it. Also, removed 7000 curves from the count of C175_142_39, and started ECM on C189_139_46.

Sean: thanks.

jyb: great, thanks

I'll queue a few thousand more curves at B1=43e6 on these three numbers, but you did the bulk of the work.

jyb · 2015-09-16, 18:51

Quote:

Originally Posted by debrouxl

jyb: great, thanks

I'll queue a few thousand more curves at B1=43e6 on these three numbers, but you did the bulk of the work.

I wouldn't bother with B1=43e6 for these. They had a full t50 before I did this work. Did you mean B1=11e7?

debrouxl · 2015-09-17, 18:07

Nope, I really meant B1=43e6, because 4 of the 5 computers I tasked with running ECM curves are low on RAM

With your curves 10K at B1=11e7 and the fact that there was already t50 work before them, 11^236+4^236, 8^271-5^271, 12^227-11^227 have now received more than 4t50 work. I'll let the 24 cores run curves at B1=43e6 on these three numbers for 2 or 3 wall clock days, for at least another t50.

I removed 5000 curves at B1=43e6 from the counts of C175_142_39 (total 12000) and C189_139_46 (total 5000). C189_139_46 shall be ready for sieving tomorrow morning.

swellman · 2015-09-17, 19:20

C175_142_39 will finish ECM with 4000 curves @B1=110M by tomorrow night, might be early Saturday morning before I can post.

Then I can focus back on C178_147_44, with has ~0.4t55 so far.

swellman · 2015-09-19, 13:26

Quote:

Originally Posted by swellman

C175_142_39 will finish ECM with 4000 curves @B1=110M by tomorrow night, might be early Saturday morning before I can post.

Done. No factors found. Now running C178_147_44 to t55.

What happened with C189_139_46?

debrouxl · 2015-09-19, 16:56

OK, thanks for the curves on C175_142_39

C189_139_46 is under ECM locally as well, a bit beyond an additional t50.

debrouxl · 2015-09-22, 18:40

C189_139_46 has received the additional ~t50 I wanted to be run, I need to pre-process and queue it.
11^236+4^236, 8^271-5^271 and 12^227-11^227 are at ~2/3 of the additional t50, I have entered polys for the two "minus" into the queue.

EDIT: is the following polynomial the best one for 11^236+4^236, given that 236 = 6*39 + 2, Y1=4^39, Y0=-11^39 ?

Code:

n: 398220076342877083410192123329749440758351630436789292868881932670361221644051451799844617572049679161062349753245258129710655793910358390522061155662621520541671884691943668021718527748007962329561851667690484701685609825229706681
skew: 0.713765855503608
c6: 121
c5: 0
c4: 0
c3: 0
c2: 0
c1: 0
c0: 16
Y1: 302231454903657293676544
Y0: -41144777789250865278081232758997200423491

At least, it sieves at a decent speed for a SNFS difficulty 246 task.

jyb · 2015-09-22, 20:46

Quote:

Originally Posted by debrouxl

C189_139_46 has received the additional ~t50 I wanted to be run, I need to pre-process and queue it.
11^236+4^236, 8^271-5^271 and 12^227-11^227 are at ~2/3 of the additional t50, I have entered polys for the two "minus" into the queue.

EDIT: is the following polynomial the best one for 11^236+4^236, given that 236 = 6*39 + 2, Y1=4^39, Y0=-11^39 ?

Code:

n: 398220076342877083410192123329749440758351630436789292868881932670361221644051451799844617572049679161062349753245258129710655793910358390522061155662621520541671884691943668021718527748007962329561851667690484701685609825229706681
skew: 0.713765855503608
c6: 121
c5: 0
c4: 0
c3: 0
c2: 0
c1: 0
c0: 16
Y1: 302231454903657293676544
Y0: -41144777789250865278081232758997200423491

At least, it sieves at a decent speed for a SNFS difficulty 246 task.

Yeah, that polynomial is probably the best one. You could maybe try sieving with 484x^6 + 1, Y1 = 2^79, Y0 = -11^39, but phi prefers yours, so that's what I'd use.

debrouxl · 2015-09-23, 05:44

Alright.

I had failed to make phi (even your 0.1.4 version, that is) produce a polynomial for a "+" number. I only realize now that I should have fed it 472 11 4 <the composite>

swellman · 2015-09-24, 13:33

These are some remaining xyyxf candidates which are slow to sieve despite unimpressive SNFS difficulties:

C174_117_79 (ECM to t50 by yoyo@Home)
C202_127_58 (ECM to t50 by yoyo@Home)
C222_124_67 (ECM to t50 by yoyo@Home)
C200_118_77 (ECM to t50 by yoyo@Home)
C186_148_33 (ECM to t50 by Sean Wellman)
C190_147_34 (ECM to t50 by Sean Wellman)

Any interest in weaving them into the 14e queue?

2015-09-16, 18:26	#233
debrouxl Sep 2009 977 Posts	My cores have now run over 7800 curves at B1=43e6 on C186_124_73, I'll queue it. Also, removed 7000 curves from the count of C175_142_39, and started ECM on C189_139_46. Sean: thanks. jyb: great, thanks I'll queue a few thousand more curves at B1=43e6 on these three numbers, but you did the bulk of the work. Last fiddled with by debrouxl on 2015-09-16 at 18:43

2015-09-22, 18:40	#239
debrouxl Sep 2009 977 Posts	C189_139_46 has received the additional ~t50 I wanted to be run, I need to pre-process and queue it. 11^236+4^236, 8^271-5^271 and 12^227-11^227 are at ~2/3 of the additional t50, I have entered polys for the two "minus" into the queue. EDIT: is the following polynomial the best one for 11^236+4^236, given that 236 = 639 + 2, Y1=4^39, Y0=-11^39 ? Code: n: 398220076342877083410192123329749440758351630436789292868881932670361221644051451799844617572049679161062349753245258129710655793910358390522061155662621520541671884691943668021718527748007962329561851667690484701685609825229706681 skew: 0.713765855503608 c6: 121 c5: 0 c4: 0 c3: 0 c2: 0 c1: 0 c0: 16 Y1: 302231454903657293676544 Y0: -41144777789250865278081232758997200423491 At least, it sieves at a decent speed for a SNFS difficulty 246 task. Last fiddled with by debrouxl on 2015-09-22 at 19:04 Reason: Adding check*

2015-09-24, 13:33	#242
swellman Jun 2012 2²·773 Posts	A few more These are some remaining xyyxf candidates which are slow to sieve despite unimpressive SNFS difficulties: C174_117_79 (ECM to t50 by yoyo@Home) C202_127_58 (ECM to t50 by yoyo@Home) C222_124_67 (ECM to t50 by yoyo@Home) C200_118_77 (ECM to t50 by yoyo@Home) C186_148_33 (ECM to t50 by Sean Wellman) C190_147_34 (ECM to t50 by Sean Wellman) Any interest in weaving them into the 14e queue?

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2015-09-17, 18:07	#235
debrouxl Sep 2009 977 Posts	Nope, I really meant B1=43e6, because 4 of the 5 computers I tasked with running ECM curves are low on RAM With your curves 10K at B1=11e7 and the fact that there was already t50 work before them, 11^236+4^236, 8^271-5^271, 12^227-11^227 have now received more than 4t50 work. I'll let the 24 cores run curves at B1=43e6 on these three numbers for 2 or 3 wall clock days, for at least another t50. I removed 5000 curves at B1=43e6 from the counts of C175_142_39 (total 12000) and C189_139_46 (total 5000). C189_139_46 shall be ready for sieving tomorrow morning.

2015-09-17, 19:20	#236
swellman Jun 2012 2²×773 Posts	C175_142_39 will finish ECM with 4000 curves @B1=110M by tomorrow night, might be early Saturday morning before I can post. Then I can focus back on C178_147_44, with has ~0.4t55 so far.

2015-09-19, 16:56	#238
debrouxl Sep 2009 1721₈ Posts	OK, thanks for the curves on C175_142_39 C189_139_46 is under ECM locally as well, a bit beyond an additional t50.

2015-09-23, 05:44	#241
debrouxl Sep 2009 977 Posts	Alright. I had failed to make phi (even your 0.1.4 version, that is) produce a polynomial for a "+" number. I only realize now that I should have fed it 472 11 4 <the composite>