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[QUOTE=swellman;448976]Amphoria - can you run some additional poly select? I can drop a request over in the poly select thread in the msieve project as well.[/QUOTE]
I can run poly select on a GTX-1080 for another 5 days. |
[QUOTE=amphoria;448994]I can run poly select on a GTX-1080 for another 5 days.[/QUOTE]
After another 5 days I found this polynomial. I am sure that fivemack will be able to improve on this. [CODE]# norm 7.258266e-019 alpha -7.644954 e 1.229e-014 rroots 5 skew: 358825801.60 c0: -541034266273071643706370766895582192548127541360 c1: 13718046031139156486286095072652870602606 c2: -39816315113392860005980728236821 c3: -627498896636735434245193 c4: 59744206662587 c5: 489060 Y0: -20969440925509810850271371696232832741 Y1: 20158651314281929 [/CODE] |
A better poly for C193_143_93
amphoria's first poly optimized by Msieve:
[code] Msieve v. 1.52 (SVN 958) R0: -17690115030839161531537758166981467963 R1: 378465978813130231 A0: -33355624080348901725207331898539288433015044480 A1: 3352384959730610289848710538986274755944 A2: -87910725208095177601320984748978 A3: -57464971932238955826111 A4: 1550716504180238 A5: 1144572 skew 226329347.85, size 6.013e-019, alpha -7.535, combined = 1.242e-014 [/code] |
After about 1.5 thread-years, I haven't got anything better than a single 1.292e-14, but I will leave the machines crunching for 72 more hours.
max0526: how long would it take you to do your magic improvement work if I send you a batch of 64 reasonable polynomials? There is no particular urgency to get this started by Christmas - there are still four unstarted jobs at [url]https://escatter11.fullerton.edu/nfs/crunching_e.php[/url] and I have sieving for a C169 and a C171 queued up for the 64 cores to chew on - but it would seem worth running my candidates past you before I do the heavy trial sieving. (I think this job is 15e 33-bit with 3 large primes on the A side, unless the statistics for newer polynomials are completely different than for amphoria's) |
[QUOTE=fivemack;449608]max0526: how long would it take you to do your magic improvement work if I send you a batch of 64 reasonable polynomials?[/QUOTE]
It will take an hour in Windows and ~4 hours in Linux for 64 polys. You'll have them back in a day. Send them in! |
[QUOTE=Max0526;449614]It will take an hour in Windows and ~4 hours in Linux for 64 polys. You'll have them back in a day. Send them in![/QUOTE]
OK, I'll send you a pile tonight and another pile Friday morning if the cluster finds anything better in the meantime. |
C193_143_93 has been queued up using the best polynomial I found (2.5 thread-years of msieve, then quite careful trial sieving on 48 candidates).
The linear algebra is going to be not completely trivial, but it'll fit on hardware that I have. |
[QUOTE=fivemack;450481]C193_143_93 has been queued up using the best polynomial I found (2.5 thread-years of msieve, then quite careful trial sieving on 48 candidates).
[/QUOTE] For interest would you mind posting the polynomial selected and associated e score here. |
[code]
n: 1982879862067973474891514859868732513299540021583405085797833744255797525633234105710592159850731168994776922107643301701606141995707074821793831620255524328119596210394385668575040940696331187 skew: 382391084.95 lss: 0 c0: 318324081209204166613742905286715136916623438560 c1: 3615738780888862816019755064121406537188 c2: -25748356788550039031717676712618 c3: -107519724368142216637064 c4: -258026194215637 c5: 167076 Y0: -25994200629018740942376323273940528517 Y1: 894445074784661731 lpbr: 33 lpba: 33 mfbr: 66 mfba: 96 alambda: 3.6 rlambda: 2.6 alim: 400000000 rlim: 400000000 [/code] [code] skew 382391084.95, size 6.103e-19, alpha -7.408, combined = 1.266e-14 rroots = 3 [/code] Average yield was 2.73 per Q, 0.819 seconds per relation |
C194_144_91
I will do some GPU-assisted ECM on this number, 23040 curves at B1=3e8 seems the right sort of amount.
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3*48 hours has already got a 2.403e-14 for C187_142_67, so I'll leave it running for a week and see what comes out after 50x the search effort.
[code] # norm 2.213343e-18 alpha -7.185978 e 2.403e-14 rroots 3 skew: 22191584.09 c0: 16995239059266192255429640770247824861912500 c1: -15862356931604487635103677383363656480 c2: 2225523048801700876285916592105 c3: 373753792949863429536619 c4: -2780023445302335 c5: 10137204 Y0: -931996517400320220400110552483980301 Y1: 2212333432420110271 [/code] |
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