Polynomial Request Thread - Page 9

VBCurtis · 2013-08-15, 23:51

Skew is about 4 times the polys I'm finding. Nice score, it'll likely be the best we find.
Why do you start with A5=1?

firejuggler · 2013-08-15, 23:55

Because I do not find such gem with higher leading coef. I'll make another run at 40M to see if I find another one.

RichD · 2013-08-16, 01:25

Quote:

Originally Posted by firejuggler

got a big flare

Wow! After some test sieving it is yielding better than 4:1 throughout the range. If you guys want to stop, I am happy with it.

firejuggler · 2013-08-16, 01:37

please wait until someone else post a poly. The skew being 4 to 5 time smaller than mine in the higher range of leading coef, it might be better than mine.

RichD · 2013-08-16, 01:43

I just realized I used the wrong siever (15e). The proper one should be 14e.

I thought the sec/rel was high. Back to the drawing board.

Edit: I think I am confusing myself. The 14e siever is producing half the rels at only a 20% boost in performance. I'll check back in the morning...

firejuggler · 2013-08-16, 01:48

nevermind , wrong seq.

swellman · 2013-08-17, 01:18

Might I request one more poly? It's C169_141_71 from the xyyxf project.

Code:

1227197223602672829193383821970351855603123006836236259055513512132470494838659975966356335286773162785001346367567977767602727425980842702375345022271000585239446214933

This factorization, along with the earlier C169 poly you guys were kind enough to run, should keep me occupied into the winter.

Thanks for any help.

debrouxl · 2013-08-17, 06:09

Aiming at setting new GNFS records for XYYXF, Sean ?

My GT540M is weak, others can help more efficiently...

wombatman · 2013-08-17, 06:57

Happy to hop on that C169 once I'm finished with the C155 (although it's looking like the 1st polynomial put up by firejuggler will be the best).

firejuggler · 2013-08-17, 09:07

I will start with a leading coef of 12M.....

swellman · 2013-08-17, 12:33

Thanks to all for running the poly. I really appreciate it. Hoping to dip my toe in the GPU pond next year.

Quote:

Originally Posted by debrouxl

Aiming at setting new GNFS records for XYYXF, Sean ?

My GT540M is weak, others can help more efficiently...

Nah, I'm just trying to eliminate all GNFS composites from the xyyxf project. C169 is about as large as I dare try solo.

It's fun to be on the record list, but I think it's more the result of Moore's Law than anything else. A C165 fell to GNFS on my i7 in a month. That was probably unimaginable 3-4 years ago. I can see in the not so distant future where a C175 GNFS is a fire-and-forget hobbyist-friendly effort on a home rig. How about GPU sieving. Is it theoretically possible?

If anyone wants to set the high water mark for xyyxf, there's C197_147_136. It's the largest remaining GNFS. NFS@Home interested?

2013-08-15, 23:51	#89
VBCurtis "Curtis" Feb 2005 Riverside, CA 12FD₁₆ Posts	Skew is about 4 times the polys I'm finding. Nice score, it'll likely be the best we find. Why do you start with A5=1? Last fiddled with by VBCurtis on 2013-08-15 at 23:52

2013-08-16, 01:43	#93
RichD Sep 2008 Kansas 2⁴×211 Posts	I just realized I used the wrong siever (15e). The proper one should be 14e. I thought the sec/rel was high. Back to the drawing board. Edit: I think I am confusing myself. The 14e siever is producing half the rels at only a 20% boost in performance. I'll check back in the morning... Last fiddled with by RichD on 2013-08-16 at 01:53

2013-08-16, 01:48	#94
firejuggler Apr 2010 Over the rainbow 2³·5²·13 Posts	nevermind , wrong seq. Last fiddled with by firejuggler on 2013-08-16 at 01:49

2013-08-17, 01:18	#95
swellman Jun 2012 2²·13·59 Posts	Might I request one more poly? It's C169_141_71 from the xyyxf project. Code: 1227197223602672829193383821970351855603123006836236259055513512132470494838659975966356335286773162785001346367567977767602727425980842702375345022271000585239446214933 This factorization, along with the earlier C169 poly you guys were kind enough to run, should keep me occupied into the winter. Thanks for any help.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GIMPS wiki account request thread	ixfd64	mersennewiki	169	2018-09-21 05:43
Polynomial Discriminant is n^k for an n-1 degree polynomial	carpetpool	Miscellaneous Math	14	2017-02-18 19:46
Lost Prime Raider password request thread	cheesehead	Forum Feedback	6	2009-07-28 13:02
Polynomial	R.D. Silverman	NFSNET Discussion	13	2005-09-16 20:07
Deutscher Thread (german thread)	TauCeti	NFSNET Discussion	0	2003-12-11 22:12

2013-08-15, 23:55	#90
firejuggler Apr 2010 Over the rainbow 2³·5²·13 Posts	Because I do not find such gem with higher leading coef. I'll make another run at 40M to see if I find another one.

2013-08-16, 01:37	#92
firejuggler Apr 2010 Over the rainbow 2³·5²·13 Posts	please wait until someone else post a poly. The skew being 4 to 5 time smaller than mine in the higher range of leading coef, it might be better than mine.

2013-08-17, 06:09	#96
debrouxl Sep 2009 977 Posts	Aiming at setting new GNFS records for XYYXF, Sean ? My GT540M is weak, others can help more efficiently...

2013-08-17, 06:57	#97
wombatman I moo ablest echo power! May 2013 29·61 Posts	Happy to hop on that C169 once I'm finished with the C155 (although it's looking like the 1st polynomial put up by firejuggler will be the best).

2013-08-17, 09:07	#98
firejuggler Apr 2010 Over the rainbow 2³×5²×13 Posts	I will start with a leading coef of 12M.....